Refactor Gauge for bar and needle display styles

- Separate gauge type (dial, meter, etc.) from graphic value display style (bar, needle);
- Gauge types reduced to 4;
- Add gaugeDisplayStyle property for bar and needle;
- SCSS cleanups for clarity and simplicity;

.circleci/config.yml

@@ -149,15 +149,11 @@ workflows:
           node-version: lts/fermium
           browser: ChromeHeadless
           post-steps:
-            - upload_code_covio
+            - upload_code_covio  
       - unit-test:
           name: node16-chrome
           node-version: lts/gallium
-          browser: ChromeHeadless
-      - unit-test:
-          name: node18-chrome
-          node-version: "18"
-          browser: ChromeHeadless
+          browser: ChromeHeadless             
       - e2e-test:
           name: e2e-ci
           node-version: lts/gallium
@@ -180,10 +176,6 @@ workflows:
           name: node16-chrome-nightly
           node-version: lts/gallium
           browser: ChromeHeadless
-      - unit-test:
-          name: node18-chrome
-          node-version: "18"
-          browser: ChromeHeadless
       - npm-audit:
           node-version: lts/gallium
       - e2e-test:

.github/workflows/e2e-pr.yml

@@ -34,7 +34,7 @@ jobs:
       - run: npm install
       - run: npm run test:e2e:full
       - name: Archive test results
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
         with:
           path: test-results
       - name: Test success

.github/workflows/pr-platform.yml

@@ -18,7 +18,6 @@ jobs:
         node_version:
           - 14
           - 16
-          - 18
         architecture:
           - x64
     name: Node ${{ matrix.node_version }} - ${{ matrix.architecture }} on ${{ matrix.os }}

e2e/tests/plugins/gauge.e2eSpec.js

@@ -0,0 +1,31 @@
+// 1. create an gauge plugin
+// 2. create with custom settings
+// 3. verify required fields are required
+// 4. should not be able to create gaugue inside a gauge.
+// 5. should not be able to move/duplicate gaugue inside a gauge.
+// 6. delete gauge
+// 7. snapshot gauge
+// 8. snapshot gauge inside Notebook entry
+// 9. gauge inside Notebook entry
+// 10. can drop inside other objects:
+//     can drop to display layout : yes
+//     can drop to Flexible layout : yes
+//     can drop to Folder : yes
+//     can drop to Bar graph: No
+//     can drop to clock: No
+//     . can drop to condition set: No
+//     . can drop to condition widegt: No
+//     // .............all other objects
+//     . can drop to webpage: No
+// 11. drop telemetry inside a gauge and reflect on data in both fixed and realtime
+// 12. can have only one telemetry per gague. (show confirmation dialog if want to replace)
+// 12. all form props (except hidefromInspector) shows inside inspector
+// 13. should be able to export and import
+// 14. able to search in tree
+// 15. supports fix and realtime mode
+// 17. refresh after creating
+// 18. open in new tab
+// 19. two separate gauges inside display layout should not show same numbers unless have same telemetry (should show respctive telemetry data).
+// 20. inside display layout compare gague values vs its telemetry value (should be same in fixed time and should tick with same rate/value in realtime)
+// 21. same for two diff gauges- > inside display layout compare gague values vs its telemetry value (should be same in fixed time and should tick with same rate/value in realtime)
+// 22. export jpeg/png of plugin

e2e/tests/plugins/plot/autoscale.e2e.spec.js

@@ -1,190 +0,0 @@
-/*****************************************************************************
- * Open MCT, Copyright (c) 2014-2022, United States Government
- * as represented by the Administrator of the National Aeronautics and Space
- * Administration. All rights reserved.
- *
- * Open MCT is licensed under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * http://www.apache.org/licenses/LICENSE-2.0.
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- *
- * Open MCT includes source code licensed under additional open source
- * licenses. See the Open Source Licenses file (LICENSES.md) included with
- * this source code distribution or the Licensing information page available
- * at runtime from the About dialog for additional information.
- *****************************************************************************/
-
-/*
-Test for plot autoscale.
-*/
-
-const { test: _test, expect } = require('@playwright/test');
-
-// create a new `test` API that will not append platform details to snapshot
-// file names, only for the tests in this file, so that the same snapshots will
-// be used for all platforms.
-const test = _test.extend({
-    _autoSnapshotSuffix: [
-        async ({}, use, testInfo) => {
-            testInfo.snapshotSuffix = '';
-            await use();
-        },
-        { auto: true }
-    ]
-});
-
-test.use({
-    viewport: {
-        width: 1280,
-        height: 720
-    }
-});
-
-test.describe('ExportAsJSON', () => {
-    test.only('autoscale off causes no error from undefined user range', async ({ page }) => {
-        await page.goto('/', { waitUntil: 'networkidle' });
-
-        await setTimeRange(page);
-
-        await createSinewaveOverlayPlot(page);
-
-        await testYTicks(page, ['-1.00', '-0.50', '0.00', '0.50', '1.00']);
-
-        await turnOffAutoscale(page);
-
-        const canvas = page.locator('canvas').nth(1);
-
-        // Make sure that after turning off autoscale, the user selected range values start at the same values the plot had prior.
-        await Promise.all([
-            testYTicks(page, ['-1.00', '-0.50', '0.00', '0.50', '1.00']),
-            new Promise(r => setTimeout(r, 100))
-                .then(() => canvas.screenshot())
-                .then(shot => expect(shot).toMatchSnapshot('autoscale-canvas-prepan.png', { maxDiffPixels: 40 }))
-        ]);
-
-        let errorCount = 0;
-
-        function onError() {
-            errorCount++;
-        }
-
-        page.on('pageerror', onError);
-
-        await page.keyboard.down('Alt');
-
-        await canvas.dragTo(canvas, {
-            sourcePosition: {
-                x: 200,
-                y: 200
-            },
-            targetPosition: {
-                x: 400,
-                y: 400
-            }
-        });
-
-        await page.keyboard.up('Alt');
-
-        page.off('pageerror', onError);
-
-        // There would have been an error at this point. So if there isn't, then
-        // we fixed it.
-        expect(errorCount).toBe(0);
-
-        // Ensure the drag worked.
-        await Promise.all([
-            testYTicks(page, ['0.00', '0.50', '1.00', '1.50', '2.00']),
-            new Promise(r => setTimeout(r, 100))
-                .then(() => canvas.screenshot())
-                .then(shot => expect(shot).toMatchSnapshot('autoscale-canvas-panned.png', { maxDiffPixels: 20 }))
-        ]);
-    });
-});
-
-/**
- * @param {import('@playwright/test').Page} page
- * @param {string} start
- * @param {string} end
- */
-async function setTimeRange(page, start = '2022-03-29 22:00:00.000Z', end = '2022-03-29 22:00:30.000Z') {
-    // Set a specific time range for consistency, otherwise it will change
-    // on every test to a range based on the current time.
-
-    const timeInputs = page.locator('input.c-input--datetime');
-    await timeInputs.first().click();
-    await timeInputs.first().fill(start);
-
-    await timeInputs.nth(1).click();
-    await timeInputs.nth(1).fill(end);
-}
-
-/**
- * @param {import('@playwright/test').Page} page
- */
-async function createSinewaveOverlayPlot(page) {
-    // click create button
-    await page.locator('button:has-text("Create")').click();
-
-    // add overlay plot with defaults
-    await page.locator('li:has-text("Overlay Plot")').click();
-    await Promise.all([
-        page.waitForNavigation(/*{ url: 'http://localhost:8080/#/browse/mine/a9268c6f-45cc-4bcd-a6a0-50ac4036e396?tc.mode=fixed&tc.startBound=1649305424163&tc.endBound=1649307224163&tc.timeSystem=utc&view=plot-overlay' }*/),
-        page.locator('text=OK').click()
-    ]);
-
-    // save (exit edit mode)
-    await page.locator('text=Snapshot Save and Finish Editing Save and Continue Editing >> button').nth(1).click();
-    await page.locator('text=Save and Finish Editing').click();
-
-    // click create button
-    await page.locator('button:has-text("Create")').click();
-
-    // add sine wave generator with defaults
-    await page.locator('li:has-text("Sine Wave Generator")').click();
-    await Promise.all([
-        page.waitForNavigation(/*{ url: 'http://localhost:8080/#/browse/mine/a9268c6f-45cc-4bcd-a6a0-50ac4036e396/5cfa5c69-17bc-4a99-9545-4da8125380c5?tc.mode=fixed&tc.startBound=1649305424163&tc.endBound=1649307224163&tc.timeSystem=utc&view=plot-single' }*/),
-        page.locator('text=OK').click()
-    ]);
-
-    // focus the overlay plot
-    await page.locator('text=Open MCT My Items >> span').nth(3).click();
-    await Promise.all([
-        page.waitForNavigation(/*{ url: 'http://localhost:8080/#/browse/mine/a9268c6f-45cc-4bcd-a6a0-50ac4036e396?tc.mode=fixed&tc.startBound=1649305424163&tc.endBound=1649307224163&tc.timeSystem=utc&view=plot-overlay' }*/),
-        page.locator('text=Unnamed Overlay Plot').first().click()
-    ]);
-}
-
-/**
- * @param {import('@playwright/test').Page} page
- */
-async function turnOffAutoscale(page) {
-    // enter edit mode
-    await page.locator('text=Unnamed Overlay Plot Snapshot >> button').nth(3).click();
-
-    // uncheck autoscale
-    await page.locator('text=Y Axis Scaling Auto scale Padding >> input[type="checkbox"]').uncheck();
-
-    // save
-    await page.locator('text=Snapshot Save and Finish Editing Save and Continue Editing >> button').nth(1).click();
-    await page.locator('text=Save and Finish Editing').click();
-}
-
-/**
- * @param {import('@playwright/test').Page} page
- */
-async function testYTicks(page, values) {
-    const yTicks = page.locator('.gl-plot-y-tick-label');
-    let promises = [yTicks.count().then(c => expect(c).toBe(values.length))];
-
-    for (let i = 0, l = values.length; i < l; i += 1) {
-        promises.push(expect(yTicks.nth(i)).toHaveText(values[i])); // eslint-disable-line
-    }
-
-    await Promise.all(promises);
-}

index.html

@@ -77,7 +77,7 @@
 
 
         openmct.install(openmct.plugins.LocalStorage());
-      
+
         openmct.install(openmct.plugins.example.Generator());
         openmct.install(openmct.plugins.example.EventGeneratorPlugin());
         openmct.install(openmct.plugins.example.ExampleImagery());

package.json

@@ -1,6 +1,6 @@
 {
   "name": "openmct",
-  "version": "2.0.3-SNAPSHOT",
+  "version": "2.0.2",
   "description": "The Open MCT core platform",
   "devDependencies": {
     "@babel/eslint-parser": "7.16.3",
@@ -23,7 +23,7 @@
     "d3-axis": "1.0.x",
     "d3-scale": "1.0.x",
     "d3-selection": "1.3.x",
-    "eslint": "8.13.0",
+    "eslint": "8.11.0",
     "eslint-plugin-compat": "4.0.2",
     "eslint-plugin-playwright": "0.8.0",
     "eslint-plugin-vue": "8.5.0",
@@ -37,7 +37,7 @@
     "imports-loader": "0.8.0",
     "jasmine-core": "4.0.1",
     "jsdoc": "3.5.5",
-    "karma": "6.3.18",
+    "karma": "6.3.15",
     "karma-chrome-launcher": "3.1.1",
     "karma-cli": "2.0.0",
     "karma-coverage": "2.1.1",
@@ -46,14 +46,14 @@
     "karma-jasmine": "4.0.1",
     "karma-junit-reporter": "2.0.1",
     "karma-sourcemap-loader": "0.3.8",
-    "karma-spec-reporter": "0.0.34",
+    "karma-spec-reporter": "0.0.33",
     "karma-webpack": "5.0.0",
     "lighthouse": "9.5.0",
     "location-bar": "3.0.1",
     "lodash": "4.17.21",
     "mini-css-extract-plugin": "2.6.0",
     "moment": "2.29.1",
-    "moment-duration-format": "2.3.2",
+    "moment-duration-format": "2.2.2",
     "moment-timezone": "0.5.34",
     "node-bourbon": "4.2.3",
     "painterro": "1.2.56",
@@ -61,14 +61,14 @@
     "plotly.js-gl2d-dist": "2.5.0",
     "printj": "1.3.1",
     "request": "2.88.2",
-    "resolve-url-loader": "5.0.0",
+    "resolve-url-loader": "4.0.0",
     "sass": "1.49.9",
     "sass-loader": "12.6.0",
     "sinon": "13.0.1",
     "style-loader": "^1.0.1",
     "uuid": "3.3.3",
     "vue": "2.6.14",
-    "vue-eslint-parser": "8.3.0",
+    "vue-eslint-parser": "8.2.0",
     "vue-loader": "15.9.8",
     "vue-template-compiler": "2.6.14",
     "webpack": "5.68.0",

src/MCT.js

@@ -242,6 +242,7 @@ define([
 
         // Plugins that are installed by default
 
+        this.install(this.plugins.Gauge());
         this.install(this.plugins.Plot());
         this.install(this.plugins.Chart());
         this.install(this.plugins.TelemetryTable.default());

src/api/forms/FormController.js

@@ -1,5 +1,6 @@
 import AutoCompleteField from './components/controls/AutoCompleteField.vue';
 import ClockDisplayFormatField from './components/controls/ClockDisplayFormatField.vue';
+import CheckBoxField from './components/controls/CheckBoxField.vue';
 import Datetime from './components/controls/Datetime.vue';
 import FileInput from './components/controls/FileInput.vue';
 import Locator from './components/controls/Locator.vue';
@@ -7,11 +8,13 @@ import NumberField from './components/controls/NumberField.vue';
 import SelectField from './components/controls/SelectField.vue';
 import TextAreaField from './components/controls/TextAreaField.vue';
 import TextField from './components/controls/TextField.vue';
+import ToggleSwitchField from './components/controls/ToggleSwitchField.vue';
 
 import Vue from 'vue';
 
 export const DEFAULT_CONTROLS_MAP = {
     'autocomplete': AutoCompleteField,
+    'checkbox': CheckBoxField,
     'composite': ClockDisplayFormatField,
     'datetime': Datetime,
     'file-input': FileInput,
@@ -19,7 +22,8 @@ export const DEFAULT_CONTROLS_MAP = {
     'numberfield': NumberField,
     'select': SelectField,
     'textarea': TextAreaField,
-    'textfield': TextField
+    'textfield': TextField,
+    'toggleSwitch': ToggleSwitchField
 };
 
 export default class FormControl {
@@ -94,4 +98,3 @@ export default class FormControl {
         };
     }
 }
-

src/api/forms/components/FormRow.vue

@@ -79,10 +79,12 @@ export default {
         rowClass() {
             let cssClass = this.cssClass;
 
-            if (this.row.required) {
-                cssClass = `${cssClass} req`;
+            if (!this.row.required) {
+                return;
             }
 
+            cssClass = `${cssClass} req`;
+
             if (this.visited && this.valid !== undefined) {
                 if (this.valid === true) {
                     cssClass = `${cssClass} valid`;

src/api/forms/components/controls/CheckBoxField.vue

@@ -0,0 +1,55 @@
+/*****************************************************************************
+* Open MCT, Copyright (c) 2014-2022, United States Government
+* as represented by the Administrator of the National Aeronautics and Space
+* Administration. All rights reserved.
+*
+* Open MCT is licensed under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+* http://www.apache.org/licenses/LICENSE-2.0.
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+* License for the specific language governing permissions and limitations
+* under the License.
+*
+* Open MCT includes source code licensed under additional open source
+* licenses. See the Open Source Licenses file (LICENSES.md) included with
+* this source code distribution or the Licensing information page available
+* at runtime from the About dialog for additional information.
+*****************************************************************************/
+
+<template>
+<span class="form-control shell">
+    <span
+        class="field control"
+        :class="model.cssClass"
+    >
+        <input
+            type="checkbox"
+            :checked="isChecked"
+            @input="toggleCheckBox"
+        >
+    </span>
+</span>
+</template>
+
+<script>
+import toggleMixin from '../../toggle-check-box-mixin';
+
+export default {
+    mixins: [toggleMixin],
+    props: {
+        model: {
+            type: Object,
+            required: true
+        }
+    },
+    data() {
+        return {
+            isChecked: this.model.value
+        };
+    }
+};
+</script>

src/api/forms/components/controls/NumberField.vue

@@ -58,7 +58,6 @@ export default {
     },
     methods: {
         updateText() {
-            console.log('updateText', this.field);
             const data = {
                 model: this.model,
                 value: this.field

src/api/forms/components/controls/ToggleSwitchField.vue

@@ -0,0 +1,62 @@
+/*****************************************************************************
+* Open MCT, Copyright (c) 2014-2022, United States Government
+* as represented by the Administrator of the National Aeronautics and Space
+* Administration. All rights reserved.
+*
+* Open MCT is licensed under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+* http://www.apache.org/licenses/LICENSE-2.0.
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+* License for the specific language governing permissions and limitations
+* under the License.
+*
+* Open MCT includes source code licensed under additional open source
+* licenses. See the Open Source Licenses file (LICENSES.md) included with
+* this source code distribution or the Licensing information page available
+* at runtime from the About dialog for additional information.
+*****************************************************************************/
+
+<template>
+<span class="form-control shell">
+    <span
+        class="field control"
+        :class="model.cssClass"
+    >
+        <ToggleSwitch
+            id="switchId"
+            :checked="isChecked"
+            @change="toggleCheckBox"
+        />
+    </span>
+</span>
+</template>
+
+<script>
+import toggleMixin from '../../toggle-check-box-mixin';
+import ToggleSwitch from '@/ui/components/ToggleSwitch.vue';
+
+import uuid from 'uuid';
+
+export default {
+    components: {
+        ToggleSwitch
+    },
+    mixins: [toggleMixin],
+    props: {
+        model: {
+            type: Object,
+            required: true
+        }
+    },
+    data() {
+        return {
+            switchId: `toggleSwitch-${uuid}`,
+            isChecked: this.model.value
+        };
+    }
+};
+</script>

src/api/forms/toggle-check-box-mixin.js

@@ -0,0 +1,19 @@
+export default {
+    data() {
+        return {
+            isChecked: false
+        };
+    },
+    methods: {
+        toggleCheckBox(event) {
+            this.isChecked = !this.isChecked;
+
+            const data = {
+                model: this.model,
+                value: this.isChecked
+            };
+
+            this.$emit('onChange', data);
+        }
+    }
+};

src/plugins/formActions/CreateWizard.js

@@ -90,6 +90,9 @@ export default class CreateWizard {
             rows: this.properties.map(property => {
                 const row = JSON.parse(JSON.stringify(property));
                 row.value = this.getValue(row);
+                if (property.validate) {
+                    row.validate = property.validate;
+                }
 
                 return row;
             }).filter(row => row && row.control)

src/plugins/gauge/GaugePlugin.js

@@ -0,0 +1,221 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2018, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+import GaugeViewProvider from './GaugeViewProvider';
+import GaugeFormController from './components/GaugeFormController.vue';
+import Vue from 'vue';
+
+export const GAUGE_TYPES = [
+    ['Dial', 'dial'],
+    ['Vertical Meter', 'meter-vertical'],
+    ['Vertical Meter Inverted', 'meter-vertical-inverted'],
+    ['Horizontal Meter', 'meter-horizontal']
+];
+
+export const GAUGE_DISPLAY_STYLES = [
+    ['Bar', 'bar'],
+    ['Needle', 'needle']
+];
+
+export default function () {
+    return function install(openmct) {
+        openmct.objectViews.addProvider(new GaugeViewProvider(openmct));
+
+        openmct.forms.addNewFormControl('gauge-controller', getGaugeFormController(openmct));
+        openmct.types.addType('gauge', {
+            name: "Gauge",
+            creatable: true,
+            description: "Graphically visualize a telemetry element's current value between a minimum and maximum.",
+            cssClass: 'icon-gauge',
+            initialize(domainObject) {
+                domainObject.composition = [];
+                domainObject.configuration = {
+                    gaugeController: {
+                        gaugeType: GAUGE_TYPES[0][1],
+                        gaugeDisplayStyle: GAUGE_DISPLAY_STYLES[0][1],
+                        isDisplayMinMax: true,
+                        isDisplayCurVal: true,
+                        isUseTelemetryLimits: true,
+                        limitLow: 10,
+                        limitHigh: 90,
+                        max: 100,
+                        min: 0,
+                        precision: 2
+                    }
+                };
+            },
+            form: [
+                {
+                    name: "Display current value",
+                    control: "toggleSwitch",
+                    cssClass: "l-input",
+                    key: "isDisplayCurVal",
+                    property: [
+                        "configuration",
+                        "gaugeController",
+                        "isDisplayCurVal"
+                    ]
+                },
+                {
+                    name: "Display range values",
+                    control: "toggleSwitch",
+                    cssClass: "l-input",
+                    key: "isDisplayMinMax",
+                    property: [
+                        "configuration",
+                        "gaugeController",
+                        "isDisplayMinMax"
+                    ]
+                },
+                {
+                    name: "Float precision",
+                    control: "numberfield",
+                    cssClass: "l-input-sm",
+                    key: "precision",
+                    property: [
+                        "configuration",
+                        "gaugeController",
+                        "precision"
+                    ]
+                },
+                {
+                    name: "Gauge type",
+                    options: GAUGE_TYPES.map(type => {
+                        return {
+                            name: type[0],
+                            value: type[1]
+                        };
+                    }),
+                    control: "select",
+                    cssClass: "l-input-sm",
+                    key: "gaugeController",
+                    property: [
+                        "configuration",
+                        "gaugeController",
+                        "gaugeType"
+                    ]
+                },
+                {
+                    name: "Display style",
+                    options: GAUGE_DISPLAY_STYLES.map(type => {
+                        return {
+                            name: type[0],
+                            value: type[1]
+                        };
+                    }),
+                    control: "select",
+                    cssClass: "l-input-sm",
+                    key: "gaugeController",
+                    property: [
+                        "configuration",
+                        "gaugeController",
+                        "gaugeDisplayStyle"
+                    ]
+                },
+                {
+                    name: "Value ranges and limits",
+                    control: "gauge-controller",
+                    cssClass: "l-input",
+                    key: "gaugeController",
+                    required: false,
+                    hideFromInspector: true,
+                    property: [
+                        "configuration",
+                        "gaugeController"
+                    ],
+                    validate: ({ value }, callback) => {
+                        if (value.isUseTelemetryLimits) {
+                            return true;
+                        }
+
+                        const { min, max, limitLow, limitHigh } = value;
+                        const valid = {
+                            min: true,
+                            max: true,
+                            limitLow: true,
+                            limitHigh: true
+                        };
+
+                        if (min === '') {
+                            valid.min = false;
+                        }
+
+                        if (max === '') {
+                            valid.max = false;
+                        }
+
+                        if (max < min) {
+                            valid.min = false;
+                            valid.max = false;
+                        }
+
+                        if (limitLow !== '') {
+                            valid.limitLow = min <= limitLow && limitLow < max;
+                        }
+
+                        if (limitHigh !== '') {
+                            valid.limitHigh = min < limitHigh && limitHigh <= max;
+                        }
+
+                        if (valid.limitLow && valid.limitHigh
+                                && limitLow !== '' && limitHigh !== ''
+                                && limitLow > limitHigh) {
+                            valid.limitLow = false;
+                            valid.limitHigh = false;
+                        }
+
+                        if (callback) {
+                            callback(valid);
+                        }
+
+                        return valid.min && valid.max && valid.limitLow && valid.limitHigh;
+                    }
+                }
+            ]
+        });
+    };
+
+    function getGaugeFormController(openmct) {
+        return {
+            show(element, model, onChange) {
+                const rowComponent = new Vue({
+                    el: element,
+                    components: {
+                        GaugeFormController
+                    },
+                    provide: {
+                        openmct
+                    },
+                    data() {
+                        return {
+                            model,
+                            onChange
+                        };
+                    },
+                    template: `<GaugeFormController :model="model" @onChange="onChange"></GaugeFormController>`
+                });
+
+                return rowComponent;
+            }
+        };
+    }
+}

src/plugins/gauge/GaugeViewProvider.js

@@ -0,0 +1,65 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2018, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+import GaugeComponent from './components/Gauge.vue';
+import Vue from 'vue';
+
+export default function GaugeViewProvider(openmct) {
+    return {
+        key: 'gauge',
+        name: 'Gauge',
+        cssClass: 'icon-gauge',
+        canView: function (domainObject) {
+            return domainObject.type === 'gauge';
+        },
+        canEdit: function (domainObject) {
+            return false;
+        },
+        view: function (domainObject) {
+            let component;
+
+            return {
+                show: function (element) {
+                    component = new Vue({
+                        el: element,
+                        components: {
+                            GaugeComponent
+                        },
+                        provide: {
+                            openmct,
+                            domainObject,
+                            composition: openmct.composition.get(domainObject)
+                        },
+                        template: '<gauge-component></gauge-component>'
+                    });
+                },
+                destroy: function (element) {
+                    component.$destroy();
+                    component = undefined;
+                }
+            };
+        },
+        priority: function () {
+            return 1;
+        }
+    };
+}

src/plugins/gauge/components/Gauge.vue

@@ -0,0 +1,443 @@
+<template>
+<div
+    class="c-gauge"
+    :class="`c-gauge--${gaugeType} c-gauge--style-${gaugeDisplayStyle}`"
+>
+    <div class="c-gauge__wrapper">
+        <template v-if="typeDial">
+            <svg
+                class="c-gauge__range"
+                viewBox="0 0 512 512"
+            >
+                <text
+                    v-if="displayMinMax"
+                    font-size="35"
+                    transform="translate(105 455) rotate(-45)"
+                >{{ rangeLow }}</text>
+                <text
+                    v-if="displayMinMax"
+                    font-size="35"
+                    transform="translate(407 455) rotate(45)"
+                    text-anchor="end"
+                >{{ rangeHigh }}</text>
+            </svg>
+
+            <svg
+                v-if="displayCurVal"
+                class="c-gauge__curval"
+                :viewBox="curValViewBox"
+            >
+                <text
+                    class="c-gauge__curval-text"
+                    lengthAdjust="spacing"
+                    text-anchor="middle"
+                >{{ curVal }}</text>
+            </svg>
+
+            <div class="c-dial">
+                <svg
+                    class="c-dial__bg"
+                    viewBox="0 0 512 512"
+                >
+                    <path d="M256,0C114.6,0,0,114.6,0,256S114.6,512,256,512,512,397.4,512,256,397.4,0,256,0Zm0,412A156,156,0,1,1,412,256,155.9,155.9,0,0,1,256,412Z" />
+                </svg>
+
+                <svg
+                    v-if="limitHigh && dialHighLimitDeg < 270"
+                    class="c-dial__limit-high"
+                    viewBox="0 0 512 512"
+                    :class="{
+                        'c-high-limit-clip--90': dialHighLimitDeg > 90,
+                        'c-high-limit-clip--180': dialHighLimitDeg >= 180
+                    }"
+                >
+                    <path
+                        d="M100,256A156,156,0,1,1,366.3,366.3L437,437a255.2,255.2,0,0,0,75-181C512,114.6,397.4,0,256,0S0,114.6,0,256A255.2,255.2,0,0,0,75,437l70.7-70.7A155.5,155.5,0,0,1,100,256Z"
+                        :style="`transform: rotate(${dialHighLimitDeg}deg)`"
+                    />
+                </svg>
+
+                <svg
+                    v-if="limitLow && dialLowLimitDeg < 270"
+                    class="c-dial__limit-low"
+                    viewBox="0 0 512 512"
+                    :class="{
+                        'c-dial-clip--90': dialLowLimitDeg < 90,
+                        'c-dial-clip--180': dialLowLimitDeg >= 90 && dialLowLimitDeg < 180
+                    }"
+                >
+                    <path
+                        d="M256,100c86.2,0,156,69.8,156,156s-69.8,156-156,156c-43.1,0-82.1-17.5-110.3-45.7L75,437 c46.3,46.3,110.3,75,181,75c141.4,0,256-114.6,256-256S397.4,0,256,0C185.3,0,121.3,28.7,75,75l70.7,70.7 C173.9,117.5,212.9,100,256,100z"
+                        :style="`transform: rotate(${dialLowLimitDeg}deg)`"
+                    />
+                </svg>
+
+                <svg
+                    class="c-dial__value"
+                    viewBox="0 0 512 512"
+                    :class="{
+                        'c-dial-clip--90': degValue < 90 && styleBar,
+                        'c-dial-clip--180': degValue >= 90 && degValue < 180 && styleBar
+                    }"
+                >
+                    <path
+                        v-if="styleBar && degValue > 0"
+                        d="M256,31A224.3,224.3,0,0,0,98.3,95.5l48.4,49.2a156,156,0,1,1-1,221.6L96.9,415.1A224.4,224.4,0,0,0,256,481c124.3,0,225-100.7,225-225S380.3,31,256,31Z"
+                        :style="`transform: rotate(${degValue}deg)`"
+                    />
+                    <path
+                        v-if="styleNeedle && valueInBounds"
+                        d="M256,86c-93.9,0-170,76.1-170,170c0,43.9,16.6,83.9,43.9,114.1l-38.7,38.7c-3.3,3.3-3.3,8.7,0,12s8.7,3.3,12,0 l38.7-38.7C172.1,409.4,212.1,426,256,426c93.9,0,170-76.1,170-170S349.9,86,256,86z M256,411.7c-86,0-155.7-69.7-155.7-155.7 S170,100.3,256,100.3S411.7,170,411.7,256S342,411.7,256,411.7z"
+                        :style="`transform: rotate(${degValue}deg)`"
+                    />
+                </svg>
+            </div>
+        </template>
+
+        <template v-if="typeMeter">
+            <div class="c-meter">
+                <div
+                    v-if="displayMinMax"
+                    class="c-gauge__range c-meter__range"
+                >
+                    <div class="c-meter__range__high">{{ rangeHigh }}</div>
+                    <div class="c-meter__range__low">{{ rangeLow }}</div>
+                </div>
+                <div class="c-meter__bg">
+                    <template v-if="typeMeterVertical">
+                        <div
+                            class="c-meter__value"
+                            :style="`transform: translateY(${meterValueToPerc}%)`"
+                        ></div>
+
+                        <div
+                            v-if="limitHigh && meterHighLimitPerc > 0"
+                            class="c-meter__limit-high"
+                            :style="`height: ${meterHighLimitPerc}%`"
+                        ></div>
+
+                        <div
+                            v-if="limitLow && meterLowLimitPerc > 0"
+                            class="c-meter__limit-low"
+                            :style="`height: ${meterLowLimitPerc}%`"
+                        ></div>
+                    </template>
+
+                    <template v-if="typeMeterHorizontal">
+                        <div class="c-meter__value"
+                            :style="`transform: translateX(${meterValueToPerc * -1}%)`"
+                        ></div>
+
+                        <div
+                            v-if="limitHigh && meterHighLimitPerc > 0"
+                            class="c-meter__limit-high"
+                            :style="`width: ${meterHighLimitPerc}%`"
+                        ></div>
+
+                        <div
+                            v-if="limitLow && meterLowLimitPerc > 0"
+                            class="c-meter__limit-low"
+                            :style="`width: ${meterLowLimitPerc}%`"
+                        ></div>
+                    </template>
+
+                    <svg
+                        v-if="displayCurVal"
+                        class="c-gauge__curval"
+                        :viewBox="curValViewBox"
+                        preserveAspectRatio="xMidYMid meet"
+                    >
+                        <text
+                            class="c-gauge__curval-text"
+                            text-anchor="middle"
+                            lengthAdjust="spacing"
+                        >{{ curVal }}</text>
+                    </svg>
+                </div>
+            </div>
+        </template>
+    </div>
+</div>
+</template>
+
+<script>
+const LIMIT_PADDING_IN_PERCENT = 10;
+
+export default {
+    name: 'Gauge',
+    inject: ['openmct', 'domainObject', 'composition'],
+    data() {
+        let gaugeController = this.domainObject.configuration.gaugeController;
+
+        return {
+            curVal: 0,
+            digits: 3,
+            precision: gaugeController.precision,
+            displayMinMax: gaugeController.isDisplayMinMax,
+            displayCurVal: gaugeController.isDisplayCurVal,
+            limitHigh: gaugeController.limitHigh,
+            limitLow: gaugeController.limitLow,
+            rangeHigh: gaugeController.max,
+            rangeLow: gaugeController.min,
+            gaugeType: gaugeController.gaugeType,
+            gaugeDisplayStyle: gaugeController.gaugeDisplayStyle
+        };
+    },
+    computed: {
+        degValue() {
+            return this.percentToDegrees(this.valToPercent(this.curVal));
+        },
+        dialHighLimitDeg() {
+            return this.percentToDegrees(this.valToPercent(this.limitHigh));
+        },
+        dialLowLimitDeg() {
+            return this.percentToDegrees(this.valToPercent(this.limitLow));
+        },
+        curValViewBox() {
+            const DIGITS_RATIO = 10;
+            const VIEWBOX_STR = '0 0 X 15';
+
+            return VIEWBOX_STR.replace('X', this.digits * DIGITS_RATIO);
+        },
+        typeDial() {
+            return this.matchGaugeType('dial');
+        },
+        typeMeter() {
+            return this.matchGaugeType('meter');
+        },
+        typeMeterHorizontal() {
+            return this.matchGaugeType('horizontal');
+        },
+        typeMeterVertical() {
+            return this.matchGaugeType('vertical');
+        },
+        typeMeterInverted() {
+            return this.matchGaugeType('inverted');
+        },
+        styleBar() {
+            return this.matchGaugeDisplayStyle('bar');
+        },
+        styleNeedle() {
+            return this.matchGaugeDisplayStyle('needle');
+        },
+        meterValueToPerc() {
+            const meterDirection = (this.typeMeterInverted) ? -1 : 1;
+
+            // For bar meter, don't move the bar if it's not visible
+            if (this.styleBar && this.curVal <= this.rangeLow) {
+                return meterDirection * 100;
+            }
+            // For bar meter, don't move the bar if it's beyond 100% of the range
+            if (this.styleBar && this.curVal >= this.rangeHigh) {
+                return 0;
+            }
+
+            return this.valToPercentMeter(this.curVal) * meterDirection;
+        },
+        meterHighLimitPerc() {
+            return this.valToPercentMeter(this.limitHigh);
+        },
+        meterLowLimitPerc() {
+            return 100 - this.valToPercentMeter(this.limitLow);
+        },
+        valueInBounds() {
+            return (this.curVal >= this.rangeLow && this.curVal <= this.rangeHigh);
+        }
+    },
+    watch: {
+        curVal(newCurValue) {
+            if (this.digits < newCurValue.toString().length) {
+                this.digits = newCurValue.toString().length;
+            }
+        }
+    },
+    mounted() {
+        this.composition.on('add', this.addedToComposition);
+        this.composition.on('remove', this.removeTelemetryObject);
+
+        this.composition.load();
+
+        this.openmct.time.on('bounds', this.refreshData);
+    },
+    destroyed() {
+        this.composition.off('add', this.addedToComposition);
+        this.composition.off('remove', this.removeTelemetryObject);
+
+        if (this.unsubscribe) {
+            this.unsubscribe();
+        }
+
+        this.openmct.time.off('bounds', this.refreshData);
+    },
+    methods: {
+        addTelemetryObjectAndSubscribe(domainObject) {
+            this.telemetryObject = domainObject;
+            this.request();
+            this.subscribe();
+        },
+        addedToComposition(domainObject) {
+            if (this.telemetryObject) {
+                this.confirmRemoval(domainObject);
+            } else {
+                this.addTelemetryObjectAndSubscribe(domainObject);
+            }
+        },
+        confirmRemoval(domainObject) {
+            const dialog = this.openmct.overlays.dialog({
+                iconClass: 'alert',
+                message: 'This action will replace the current telemetry source. Do you want to continue?',
+                buttons: [
+                    {
+                        label: 'Ok',
+                        emphasis: true,
+                        callback: () => {
+                            this.removeFromComposition();
+                            this.removeTelemetryObject();
+                            this.addTelemetryObjectAndSubscribe(domainObject);
+                            dialog.dismiss();
+                        }
+                    },
+                    {
+                        label: 'Cancel',
+                        callback: () => {
+                            this.removeFromComposition(domainObject);
+                            dialog.dismiss();
+                        }
+                    }
+                ]
+            });
+        },
+        getDateValueFormatter() {
+            const timeSystem = this.openmct.time.timeSystem();
+            const metadataValue = this.metadata.value(timeSystem.key) || { format: timeSystem.key };
+
+            return this.openmct.telemetry.getValueFormatter(metadataValue);
+        },
+        matchGaugeType(str) {
+            return this.gaugeType.indexOf(str) !== -1;
+        },
+        matchGaugeDisplayStyle(str) {
+            return this.gaugeDisplayStyle.indexOf(str) !== -1;
+        },
+        percentToDegrees(vPercent) {
+            return this.round((vPercent / 100) * 270, 2);
+        },
+        removeFromComposition(telemetryObject = this.telemetryObject) {
+            let composition = this.domainObject.composition.filter(id =>
+                !this.openmct.objects.areIdsEqual(id, telemetryObject.identifier)
+            );
+
+            this.openmct.objects.mutate(this.domainObject, 'composition', composition);
+        },
+        refreshData(bounds, isTick) {
+            if (!isTick) {
+                this.request();
+            }
+        },
+        removeTelemetryObject() {
+            if (this.unsubscribe) {
+                this.unsubscribe();
+                this.unsubscribe = null;
+            }
+
+            this.metadata = null;
+            this.formats = null;
+            this.valueKey = null;
+            this.limitHigh = null;
+            this.limitLow = null;
+            this.rangeHigh = null;
+            this.rangeLow = null;
+        },
+        request(domainObject = this.telemetryObject) {
+            this.metadata = this.openmct.telemetry.getMetadata(domainObject);
+            this.formats = this.openmct.telemetry.getFormatMap(this.metadata);
+            const LimitEvaluator = this.openmct.telemetry.getLimits(domainObject);
+            LimitEvaluator.limits().then(this.updateLimits);
+
+            this.valueKey = this
+                .metadata
+                .valuesForHints(['range'])[0].source;
+
+            this.openmct
+                .telemetry
+                .request(domainObject, { strategy: 'latest' })
+                .then(values => {
+                    const length = values.length;
+                    this.updateValue(values[length - 1]);
+                });
+        },
+        round(val, decimals = this.precision) {
+            let precision = Math.pow(10, decimals);
+
+            return Math.round(val * precision) / precision;
+        },
+        subscribe(domainObject = this.telemetryObject) {
+            this.unsubscribe = this.openmct
+                .telemetry
+                .subscribe(domainObject, this.updateValue.bind(this));
+        },
+        updateLimits(telemetryLimit) {
+            if (!telemetryLimit || !this.domainObject.configuration.gaugeController.isUseTelemetryLimits) {
+                return;
+            }
+
+            let limits = {
+                high: 0,
+                low: 0
+            };
+            if (telemetryLimit.CRITICAL) {
+                limits = telemetryLimit.CRITICAL;
+            } else if (telemetryLimit.DISTRESS) {
+                limits = telemetryLimit.DISTRESS;
+            } else if (telemetryLimit.SEVERE) {
+                limits = telemetryLimit.SEVERE;
+            } else if (telemetryLimit.WARNING) {
+                limits = telemetryLimit.WARNING;
+            } else if (telemetryLimit.WATCH) {
+                limits = telemetryLimit.WATCH;
+            } else {
+                this.openmct.notifications.error('No limits definition for given telemetry');
+            }
+
+            this.limitHigh = this.round(limits.high[this.valueKey]);
+            this.limitLow = this.round(limits.low[this.valueKey]);
+            this.rangeHigh = this.round(this.limitHigh + this.limitHigh * LIMIT_PADDING_IN_PERCENT / 100);
+            this.rangeLow = this.round(this.limitLow - Math.abs(this.limitLow * LIMIT_PADDING_IN_PERCENT / 100));
+        },
+        updateValue(datum) {
+            const dateValueFormatter = this.getDateValueFormatter();
+            const parsedValue = dateValueFormatter.parse(datum);
+            const { start, end } = this.openmct.time.bounds();
+
+            const beforeStartOfBounds = parsedValue < start;
+            const afterEndOfBounds = parsedValue > end;
+            if (afterEndOfBounds || beforeStartOfBounds) {
+                return;
+            }
+
+            if (this.isRendering) {
+                return;
+            }
+
+            this.isRendering = true;
+            requestAnimationFrame(() => {
+                this.isRendering = false;
+
+                this.curVal = this.round(this.formats[this.valueKey].format(datum), this.precision);
+            });
+        },
+        valToPercent(vValue) {
+            // Used by dial
+            if (vValue >= this.rangeHigh && this.styleBar) {
+                // Don't peg at 100% if the gaugeType isn't a filled shape
+                return 100;
+            }
+
+            return ((vValue - this.rangeLow) / (this.rangeHigh - this.rangeLow)) * 100;
+        },
+        valToPercentMeter(vValue) {
+            return this.round((this.rangeHigh - vValue) / (this.rangeHigh - this.rangeLow) * 100, 2);
+        }
+    }
+};
+</script>

src/plugins/gauge/components/GaugeFormController.vue

@@ -0,0 +1,172 @@
+/*****************************************************************************
+* Open MCT, Copyright (c) 2014-2022, United States Government
+* as represented by the Administrator of the National Aeronautics and Space
+* Administration. All rights reserved.
+*
+* Open MCT is licensed under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+* http://www.apache.org/licenses/LICENSE-2.0.
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+* License for the specific language governing permissions and limitations
+* under the License.
+*
+* Open MCT includes source code licensed under additional open source
+* licenses. See the Open Source Licenses file (LICENSES.md) included with
+* this source code distribution or the Licensing information page available
+* at runtime from the About dialog for additional information.
+*****************************************************************************/
+
+<template>
+<span class="form-control">
+    <span
+        class="field control"
+        :class="model.cssClass"
+    >
+        <ToggleSwitch
+            id="isUseTelemetryLimits"
+            :checked="isUseTelemetryLimits"
+            :label="`Use telemetry limits for minimum and maximum ranges`"
+            @change="toggleUseTelemetryLimits"
+        />
+
+        <div
+            v-if="!isUseTelemetryLimits"
+            class="c-form--sub-grid"
+        >
+            <div class="c-form__row">
+                <span class="req-indicator req">
+                </span>
+                <label>Range minimum value</label>
+                <input
+                    ref="min"
+                    v-model.number="min"
+                    data-field-name="min"
+                    type="number"
+                    @input="onChange"
+                >
+            </div>
+
+            <div class="c-form__row">
+                <span class="req-indicator">
+                </span>
+                <label>Range low limit</label>
+                <input
+                    ref="limitLow"
+                    v-model.number="limitLow"
+                    data-field-name="limitLow"
+                    type="number"
+                    @input="onChange"
+                >
+            </div>
+
+            <div class="c-form__row">
+                <span class="req-indicator req">
+                </span>
+                <label>Range maximum value</label>
+                <input
+                    ref="max"
+                    v-model.number="max"
+                    data-field-name="max"
+                    type="number"
+                    @input="onChange"
+                >
+            </div>
+
+            <div class="c-form__row">
+                <span class="req-indicator">
+                </span>
+                <label>Range high limit</label>
+                <input
+                    ref="limitHigh"
+                    v-model.number="limitHigh"
+                    data-field-name="limitHigh"
+                    type="number"
+                    @input="onChange"
+                >
+            </div>
+        </div>
+    </span>
+</span>
+</template>
+
+<script>
+import ToggleSwitch from '@/ui/components/ToggleSwitch.vue';
+
+export default {
+    components: {
+        ToggleSwitch
+    },
+    props: {
+        model: {
+            type: Object,
+            required: true
+        }
+    },
+    data() {
+        return {
+            isUseTelemetryLimits: this.model.value.isUseTelemetryLimits,
+            isDisplayMinMax: this.model.value.isDisplayMinMax,
+            isDisplayCurVal: this.model.value.isDisplayCurVal,
+            limitHigh: this.model.value.limitHigh,
+            limitLow: this.model.value.limitLow,
+            max: this.model.value.max,
+            min: this.model.value.min
+        };
+    },
+    methods: {
+        onChange(event) {
+            const data = {
+                model: this.model,
+                value: {
+                    gaugeType: this.model.value.gaugeType,
+                    gaugeDisplayStyle: this.model.value.gaugeDisplayStyle,
+                    isDisplayMinMax: this.isDisplayMinMax,
+                    isDisplayCurVal: this.isDisplayCurVal,
+                    isUseTelemetryLimits: this.isUseTelemetryLimits,
+                    limitLow: this.limitLow,
+                    limitHigh: this.limitHigh,
+                    max: this.max,
+                    min: this.min,
+                    precision: this.model.value.precision
+                }
+            };
+
+            if (event) {
+                const target = event.target;
+                const targetIndicator = target.parentElement.querySelector('.req-indicator');
+                if (targetIndicator.classList.contains('req')) {
+                    targetIndicator.classList.add('visited');
+                }
+
+                this.model.validate(data, (valid) => {
+                    Object.entries(valid).forEach(([key, isValid]) => {
+                        const element = this.$refs[key];
+                        const reqIndicatorElement = element.parentElement.querySelector('.req-indicator');
+                        reqIndicatorElement.classList.toggle('invalid', !isValid);
+
+                        if (reqIndicatorElement.classList.contains('req') && (!isValid || reqIndicatorElement.classList.contains('visited'))) {
+                            reqIndicatorElement.classList.toggle('valid', isValid);
+                        }
+                    });
+                });
+            }
+
+            this.$emit('onChange', data);
+        },
+        toggleUseTelemetryLimits() {
+            this.isUseTelemetryLimits = !this.isUseTelemetryLimits;
+
+            this.onChange();
+        },
+        toggleMinMax() {
+            this.isDisplayMinMax = !this.isDisplayMinMax;
+
+            this.onChange();
+        }
+    }
+};
+</script>

src/plugins/gauge/gauge.scss

@@ -0,0 +1,299 @@
+$dialClip: polygon(0 0, 100% 0, 100% 100%, 50% 50%, 0 100%);
+$dialClip90: polygon(0 0, 50% 50%, 0 100%);
+$dialClip180: polygon(0 0, 100% 0, 0 100%);
+$limitHighClip90: polygon(0 0, 100% 0, 100% 100%);
+$limitHighClip180: polygon(100% 0, 100% 100%, 0 100%);
+
+.is-object-type-gauge {
+  overflow: hidden;
+}
+
+.req-indicator {
+  width: 20px;
+
+  &.invalid,
+  &.invalid.req { @include validationState($glyph-icon-x, $colorFormInvalid); }
+
+  &.valid,
+  &.valid.req { @include validationState($glyph-icon-check, $colorFormValid); }
+
+  &.req { @include validationState($glyph-icon-asterisk, $colorFormRequired); }
+}
+
+.c-gauge {
+  // Both dial and meter types
+  overflow: hidden;
+
+  &__range {
+    $c: $colorGaugeRange;
+    color: $c;
+
+    text {
+      fill: $c;
+    }
+  }
+
+  &__wrapper {
+    @include abs();
+    overflow: hidden;
+  }
+
+  svg {
+    path {
+      transform-origin: center;
+    }
+
+    &.c-gauge__curval {
+      @include abs();
+      fill: $colorGaugeTextValue;
+      position: absolute;
+      width: 100%;
+      height: 100%;
+      z-index: 2;
+
+      .c-gauge__curval-text {
+        font-family: $heroFont;
+        transform: translate(50%, 75%);
+      }
+    }
+  }
+
+  &[class*='dial'] {
+    // Square aspect ratio
+    width: 100%;
+    padding-bottom: 100%;
+  }
+
+  &[class*='meter'] {
+    @include abs();
+  }
+}
+
+/********************************************** DIAL GAUGE */
+.c-dial {
+  // Dial elements
+  @include abs();
+  clip-path: $dialClip;
+
+  svg,
+  &__ticks,
+  &__bg,
+  &[class*='__limit'],
+  &__value {
+    @include abs();
+  }
+
+  .c-high-limit-clip--90 {
+    clip-path: $limitHighClip90;
+  }
+
+  .c-high-limit-clip--180 {
+    clip-path: $limitHighClip180;
+  }
+
+  &__limit-high path { fill: $colorGaugeLimitHigh; }
+  &__limit-low path { fill: $colorGaugeLimitLow; }
+
+  &__value,
+  &__limit-low {
+    &.c-dial-clip--90 {
+      clip-path: $dialClip90;
+    }
+
+    &.c-dial-clip--180 {
+      clip-path: $dialClip180;
+    }
+  }
+
+  &__value {
+    path,
+    polygon {
+      fill: $colorGaugeValue;
+    }
+  }
+
+  &__bg {
+    path {
+      fill: $colorGaugeBg;
+    }
+  }
+}
+
+.c-gauge--dial-needle .c-dial__value {
+  path {
+    transition: transform $transitionTimeGauge;
+  }
+}
+
+/********************************************** HORIZONTAL AND VERTICAL METERS */
+.c-meter {
+  // Common styles for c-meter
+  @include abs();
+  display: flex;
+
+  &__range {
+    display: flex;
+    flex: 0 0 auto;
+    justify-content: space-between;
+  }
+
+  &__bg {
+    background: $colorGaugeBg;
+    border-radius: $basicCr;
+    flex: 1 1 auto;
+    overflow: hidden;
+  }
+
+  &__value {
+    // Filled area
+    position: absolute;
+    background: $colorGaugeValue;
+    transition: transform $transitionTimeGauge;
+    z-index: 1;
+  }
+
+  .c-gauge__curval {
+    fill: $colorGaugeMeterTextValue !important;
+  }
+
+  [class*='limit'] {
+    position: absolute;
+  }
+
+  &__limit-high {
+    background: $colorGaugeLimitHigh;
+  }
+
+  &__limit-low {
+    background: $colorGaugeLimitLow;
+  }
+}
+
+/*********************************************** VERTICAL METER */
+[class*='c-gauge--meter-vertical'] {
+  .c-meter {
+    &__range {
+      flex-direction: column;
+      min-width: min-content;
+      margin-right: $interiorMarginSm;
+      text-align: right;
+    }
+
+    &__value {
+      // Filled area
+      $lrM: $marginGaugeMeterValue;
+      left: $lrM;
+      right: $lrM;
+      top: 0;
+      bottom: 0;
+    }
+
+    [class*='limit'] {
+      left: 0;
+      right: 0;
+    }
+
+    &__limit-low {
+      bottom: 0;
+    }
+
+    &__limit-high {
+      top: 0;
+    }
+  }
+
+  &[class*='--style-needle'] {
+    .c-meter__value {
+      border-top: 3px solid $colorGaugeValue;
+      background: none;
+    }
+  }
+
+  &[class*='inverted'] {
+    .c-meter {
+      &__limit-low {
+        bottom: auto;
+        top: 0;
+      }
+
+      &__limit-high {
+        bottom: 0;
+        top: auto;
+      }
+
+      &__range__low {
+        order: 1;
+      }
+
+      &__range__high {
+        order: 2;
+      }
+    }
+
+    &[class*='--style-needle'] {
+      .c-meter__value {
+        border-top: none;
+        border-bottom: 3px solid $colorGaugeValue;
+        right: 0;
+      }
+    }
+  }
+}
+
+/*********************************************** HORIZONTAL METER */
+[class*='c-gauge--meter-horizontal'] {
+  .c-meter {
+    flex-direction: column;
+
+    &__range {
+      flex-direction: row;
+      min-height: min-content;
+      margin-top: $interiorMarginSm;
+      order: 2;
+
+      &__high {
+        order: 2;
+      }
+
+      &__low {
+        order: 1;
+      }
+    }
+
+    &__bg {
+      order: 1;
+    }
+
+    &__value {
+      // Filled area
+      $m: $marginGaugeMeterValue;
+      top: $m;
+      bottom: $m;
+      left: 0;
+      right: 0;
+    }
+
+    [class*='limit'] {
+      top: 0;
+      bottom: 0;
+    }
+
+    &__limit-low {
+      left: 0;
+    }
+
+    &__limit-high {
+      right: 0;
+    }
+  }
+
+  &[class*='--style-needle'] {
+    .c-meter {
+      &__value {
+        border-right: 3px solid $colorGaugeValue;
+        bottom: 0;
+        background: none;
+      }
+    }
+  }
+}

src/plugins/imagery/components/Compass/compass.scss

@@ -14,7 +14,7 @@ $elemBg: rgba(black, 0.7);
     position: absolute;
     left: 0;
     top: 0;
-    z-index: 1;
+    z-index: 2;
     @include userSelectNone;
 }
 

src/plugins/imagery/components/ImageryView.vue

@@ -536,7 +536,7 @@ export default {
         this.updateRelatedTelemetryForFocusedImage = _.debounce(this.updateRelatedTelemetryForFocusedImage, 400);
 
         // for resizing the object view
-        this.resizeImageContainer = _.debounce(this.resizeImageContainer, 400, { leading: true });
+        this.resizeImageContainer = _.debounce(this.resizeImageContainer, 400);
 
         if (this.$refs.imageBG) {
             this.imageContainerResizeObserver = new ResizeObserver(this.resizeImageContainer);

src/plugins/imagery/components/imagery-view.scss

@@ -222,7 +222,7 @@
     .h-local-controls--overlay-content {
         position: absolute;
         left: $interiorMargin; top: $interiorMargin;
-        z-index: 2;
+        z-index: 70;
         background: $colorLocalControlOvrBg;
         border-radius: $basicCr;
         max-width: 250px;

src/plugins/plot/MctPlot.vue

@@ -37,7 +37,6 @@
             v-if="seriesModels.length > 0"
             :tick-width="tickWidth"
             :single-series="seriesModels.length === 1"
-            :has-same-range-value="hasSameRangeValue"
             :series-model="seriesModels[0]"
             :style="{
                 left: (plotWidth - tickWidth) + 'px'
@@ -251,8 +250,7 @@ export default {
             loaded: false,
             isTimeOutOfSync: false,
             showLimitLineLabels: undefined,
-            isFrozenOnMouseDown: false,
-            hasSameRangeValue: true
+            isFrozenOnMouseDown: false
         };
     },
     computed: {
@@ -364,7 +362,6 @@ export default {
                 this.setDisplayRange(series, xKey);
             }, this);
             this.listenTo(series, 'change:yKey', () => {
-                this.checkSameRangeValue();
                 this.loadSeriesData(series);
             }, this);
 
@@ -372,18 +369,10 @@ export default {
                 this.loadSeriesData(series);
             }, this);
 
-            this.checkSameRangeValue();
             this.loadSeriesData(series);
         },
 
-        checkSameRangeValue() {
-            this.hasSameRangeValue = this.seriesModels.every((model) => {
-                return model.get('yKey') === this.seriesModels[0].get('yKey');
-            });
-        },
-
         removeSeries(plotSeries) {
-            this.checkSameRangeValue();
             this.stopListening(plotSeries);
         },
 
@@ -499,7 +488,7 @@ export default {
         },
 
         setDisplayRange(series, xKey) {
-            if (this.config.series.models.length !== 1) {
+            if (this.config.series.length !== 1) {
                 return;
             }
 

src/plugins/plot/axis/YAxis.vue

@@ -29,9 +29,9 @@
 >
 
     <div
-        v-if="canShowYAxisLabel"
+        v-if="singleSeries"
         class="gl-plot-label gl-plot-y-label"
-        :class="{'icon-gear': (yKeyOptions.length > 1 && singleSeries)}"
+        :class="{'icon-gear': (yKeyOptions.length > 1)}"
     >{{ yAxisLabel }}
     </div>
 
@@ -76,12 +76,6 @@ export default {
                 return true;
             }
         },
-        hasSameRangeValue: {
-            type: Boolean,
-            default() {
-                return true;
-            }
-        },
         seriesModel: {
             type: Object,
             default() {
@@ -101,11 +95,6 @@ export default {
             loaded: false
         };
     },
-    computed: {
-        canShowYAxisLabel() {
-            return this.singleSeries === true || this.hasSameRangeValue === true;
-        }
-    },
     mounted() {
         this.yAxis = this.getYAxisFromConfig();
         this.loaded = true;

src/plugins/plot/configuration/PlotConfigurationModel.js

@@ -157,8 +157,7 @@ export default class PlotConfigurationModel extends Model {
 @typedef {{
     configuration: {
         series: import('./PlotSeries').PlotSeriesModelType[]
-        yAxis: import('./YAxisModel').YAxisModelType
-    },
+    }
 }} SomeDomainObject_NeedsName
 */
 

src/plugins/plot/configuration/PlotSeries.js

@@ -250,7 +250,6 @@ export default class PlotSeries extends Model {
         this.evaluate = function (datum) {
             return this.limitEvaluator.evaluate(datum, valueMetadata);
         }.bind(this);
-        this.set('unit', valueMetadata.unit);
         const format = this.formats[newKey];
         this.getYVal = format.parse.bind(format);
     }

src/plugins/plot/configuration/XAxisModel.js

@@ -19,7 +19,7 @@
  * this source code distribution or the Licensing information page available
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
-import Model from './Model';
+import Model from "./Model";
 
 /**
  * @extends {Model<XAxisModelType, XAxisModelOptions>}
@@ -49,11 +49,11 @@ export default class XAxisModel extends Model {
             }
         });
 
-        this.on('change:frozen', (frozen) => {
+        this.on('change:frozen', ((frozen) => {
             if (!frozen) {
                 this.set('range', this.get('range'));
             }
-        });
+        }));
 
         if (this.get('range')) {
             this.set('range', this.get('range'));
@@ -126,7 +126,7 @@ export default class XAxisModel extends Model {
 
 /**
 @typedef {import("./Model").ModelType<{
-    range?: NumberRange
+    range: NumberRange
     displayRange: NumberRange
     frozen: boolean
     label: string

src/plugins/plot/configuration/YAxisModel.js

@@ -19,6 +19,7 @@
  * this source code distribution or the Licensing information page available
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
+import _ from 'lodash';
 import Model from './Model';
 
 /**
@@ -62,14 +63,14 @@ export default class YAxisModel extends Model {
      */
     listenToSeriesCollection(seriesCollection) {
         this.seriesCollection = seriesCollection;
-        this.listenTo(this.seriesCollection, 'add', series => {
+        this.listenTo(this.seriesCollection, 'add', (series => {
             this.trackSeries(series);
             this.updateFromSeries(this.seriesCollection);
-        }, this);
-        this.listenTo(this.seriesCollection, 'remove', series => {
+        }), this);
+        this.listenTo(this.seriesCollection, 'remove', (series => {
             this.untrackSeries(series);
             this.updateFromSeries(this.seriesCollection);
-        }, this);
+        }), this);
         this.seriesCollection.forEach(this.trackSeries, this);
         this.updateFromSeries(this.seriesCollection);
     }
@@ -139,11 +140,11 @@ export default class YAxisModel extends Model {
     }
     resetStats() {
         this.unset('stats');
-        this.seriesCollection.forEach(series => {
+        this.seriesCollection.forEach(function (series) {
             if (series.has('stats')) {
                 this.updateStats(series.get('stats'));
             }
-        });
+        }, this);
     }
     /**
      * @param {import('./PlotSeries').default} series
@@ -169,18 +170,7 @@ export default class YAxisModel extends Model {
         if (autoscale && this.has('stats')) {
             this.set('displayRange', this.applyPadding(this.get('stats')));
         } else {
-            const range = this.get('range');
-
-            if (range) {
-                // If we already have a user-defined range, make sure it maps to the
-                // range we'll actually use for the ticks.
-                this.set('displayRange', range);
-            } else {
-                // Otherwise use the last known displayRange as the initial
-                // values for the user-defined range, so that we don't end up
-                // with any error from an undefined user range.
-                this.set('range', this.get('displayRange'));
-            }
+            this.set('displayRange', this.get('range'));
         }
     }
     /**
@@ -189,7 +179,7 @@ export default class YAxisModel extends Model {
      */
     updateFromSeries(seriesCollection) {
         const plotModel = this.plot.get('domainObject');
-        const label = plotModel?.configuration?.yAxis?.label;
+        const label = _.get(plotModel, 'configuration.yAxis.label');
         const sampleSeries = seriesCollection.first();
         if (!sampleSeries) {
             if (!label) {
@@ -205,19 +195,19 @@ export default class YAxisModel extends Model {
         this.set('format', yFormat.format.bind(yFormat));
         this.set('values', yMetadata.values);
         if (!label) {
-            const labelName = seriesCollection
-                .map(s => (s.metadata ? s.metadata.value(s.get('yKey')).name : ''))
-                .reduce((a, b) => {
-                    if (a === undefined) {
-                        return b;
-                    }
+            const labelName = seriesCollection.map(function (s) {
+                return s.metadata ? s.metadata.value(s.get('yKey')).name : '';
+            }).reduce(function (a, b) {
+                if (a === undefined) {
+                    return b;
+                }
 
-                    if (a === b) {
-                        return a;
-                    }
+                if (a === b) {
+                    return a;
+                }
 
-                    return '';
-                }, undefined);
+                return '';
+            }, undefined);
 
             if (labelName) {
                 this.set('label', labelName);
@@ -225,19 +215,19 @@ export default class YAxisModel extends Model {
                 return;
             }
 
-            const labelUnits = seriesCollection
-                .map(s => (s.metadata ? s.metadata.value(s.get('yKey')).units : ''))
-                .reduce((a, b) => {
-                    if (a === undefined) {
-                        return b;
-                    }
+            const labelUnits = seriesCollection.map(function (s) {
+                return s.metadata ? s.metadata.value(s.get('yKey')).units : '';
+            }).reduce(function (a, b) {
+                if (a === undefined) {
+                    return b;
+                }
 
-                    if (a === b) {
-                        return a;
-                    }
+                if (a === b) {
+                    return a;
+                }
 
-                    return '';
-                }, undefined);
+                return '';
+            }, undefined);
 
             if (labelUnits) {
                 this.set('label', labelUnits);
@@ -249,17 +239,14 @@ export default class YAxisModel extends Model {
     /**
      * @override
      * @param {import('./Model').ModelOptions<YAxisModelType, YAxisModelOptions>} options
-     * @returns {Partial<YAxisModelType>}
+     * @returns {YAxisModelType}
      */
     defaultModel(options) {
+        // @ts-ignore incomplete YAxisModelType object used for default value.
         return {
             frozen: false,
             autoscale: true,
             autoscalePadding: 0.1
-
-            // 'range' is not specified here, it is undefined at first. When the
-            // user turns off autoscale, the current 'displayRange' is used for
-            // the initial value of 'range'.
         };
     }
 }
@@ -270,7 +257,7 @@ export default class YAxisModel extends Model {
 @typedef {import('./XAxisModel').AxisModelType & {
     autoscale: boolean
     autoscalePadding: number
-    stats?: import('./XAxisModel').NumberRange
+    stats: import('./XAxisModel').NumberRange
     values: Array<TODO>
 }} YAxisModelType
 */

src/plugins/plot/inspector/forms/YAxisForm.vue

@@ -52,10 +52,10 @@
         class="l-inspector-part"
     >
         <div
-            v-show="!autoscale && validationErrors.range"
+            v-show="!autoscale && validation.range"
             class="grid-span-all form-error"
         >
-            {{ validationErrors.range }}
+            {{ validation.range }}
         </div>
         <li class="grid-row force-border">
             <div
@@ -88,7 +88,7 @@
 </template>
 
 <script>
-import { objectPath } from "./formUtil";
+import { objectPath, validate, coerce } from "./formUtil";
 import _ from "lodash";
 
 export default {
@@ -108,7 +108,7 @@ export default {
             autoscalePadding: '',
             rangeMin: '',
             rangeMax: '',
-            validationErrors: {}
+            validation: {}
         };
     },
     mounted() {
@@ -178,6 +178,12 @@ export default {
                         if (Number(range.min) > Number(range.max)) {
                             return 'Minimum must be less than Maximum.';
                         }
+
+                        if (model.get('autoscale')) {
+                            return false;
+                        }
+
+                        return true;
                     }
                 }
             ];
@@ -186,9 +192,14 @@ export default {
             this.label = this.yAxis.get('label');
             this.autoscale = this.yAxis.get('autoscale');
             this.autoscalePadding = this.yAxis.get('autoscalePadding');
-            const range = this.yAxis.get('range') ?? this.yAxis.get('displayRange');
-            this.rangeMin = range?.min;
-            this.rangeMax = range?.max;
+            const range = this.yAxis.get('range');
+            if (!range) {
+                this.rangeMin = undefined;
+                this.rangeMax = undefined;
+            } else {
+                this.rangeMin = range.min;
+                this.rangeMax = range.max;
+            }
         },
         updateForm(formKey) {
             let newVal;
@@ -201,27 +212,26 @@ export default {
                 newVal = this[formKey];
             }
 
-            let oldVal = this.yAxis.get(formKey);
+            const oldVal = this.yAxis.get(formKey);
             const formField = this.fields.find((field) => field.modelProp === formKey);
 
-            const validationError = formField.validate?.(newVal, this.yAxis);
-            this.validationErrors[formKey] = validationError;
-            if (validationError) {
+            const path = objectPath(formField.objectPath);
+            const validationResult = validate(newVal, this.yAxis, formField.validate);
+            if (validationResult === true) {
+                delete this.validation[formKey];
+            } else {
+                this.validation[formKey] = validationResult;
+
                 return;
             }
 
-            newVal = formField.coerce?.(newVal) ?? newVal;
-            oldVal = formField.coerce?.(oldVal) ?? oldVal;
-
-            const path = objectPath(formField.objectPath);
-            if (!_.isEqual(newVal, oldVal)) {
-                // TODO: Why do we mutate yAxis twice, once directly, once via objects.mutate? Or are they different objects?
-                this.yAxis.set(formKey, newVal);
+            if (!_.isEqual(coerce(newVal, formField.coerce), coerce(oldVal, formField.coerce))) {
+                this.yAxis.set(formKey, coerce(newVal, formField.coerce));
                 if (path) {
                     this.openmct.objects.mutate(
                         this.domainObject,
                         path(this.domainObject, this.yAxis),
-                        newVal
+                        coerce(newVal, formField.coerce)
                     );
                 }
             }

src/plugins/plot/inspector/forms/formUtil.js

@@ -15,5 +15,15 @@ export function validate(value, model, validateFunc) {
 }
 
 export function objectPath(path) {
-    return path && typeof path !== 'function' ? () => path : path;
+    if (path) {
+        if (typeof path !== "function") {
+            const staticObjectPath = path;
+
+            return function (object, model) {
+                return staticObjectPath;
+            };
+        }
+
+        return path;
+    }
 }

src/plugins/plugins.js

@@ -77,6 +77,7 @@ define([
     './userIndicator/plugin',
     '../../example/exampleUser/plugin',
     './localStorage/plugin',
+    './gauge/GaugePlugin',
     './timelist/plugin'
 ], function (
     _,
@@ -135,6 +136,7 @@ define([
     UserIndicator,
     ExampleUser,
     LocalStorage,
+    GaugePlugin,
     TimeList
 ) {
     const plugins = {};
@@ -212,6 +214,7 @@ define([
     plugins.DeviceClassifier = DeviceClassifier.default;
     plugins.UserIndicator = UserIndicator.default;
     plugins.LocalStorage = LocalStorage.default;
+    plugins.Gauge = GaugePlugin.default;
     plugins.Timelist = TimeList.default;
 
     return plugins;

src/plugins/telemetryTable/TelemetryTableView.js

@@ -9,11 +9,7 @@ export default class TelemetryTableView {
         this.objectPath = objectPath;
         this.component = undefined;
 
-        Object.defineProperty(this, 'table', {
-            value: new TelemetryTable(domainObject, openmct),
-            enumerable: false,
-            configurable: false
-        });
+        this.table = new TelemetryTable(domainObject, openmct);
     }
 
     getViewContext() {

src/plugins/timelist/Timelist.vue

@@ -229,7 +229,7 @@ export default {
                 } else if (durationIndex === 1) {
                     return duration * 60 * 1000;
                 } else if (durationIndex === 2) {
-                    return duration * 60 * 60 * 1000;
+                    return duration * 60 * 24 * 1000;
                 }
             }
         },

src/styles/_constants-espresso.scss

@@ -366,6 +366,16 @@ $legendHoverValueBg: rgba($colorBodyFg, 0.2);
 $legendTableHeadBg: $colorTabHeaderBg;
 $colorPlotLimitLineBg: rgba($colorBodyBg, 0.2);
 
+// Gauges
+$colorGaugeBg: pullForward($colorBodyBg, 5%); // Gauge radial area background, meter background
+$colorGaugeValue: rgba(#fff, 0.3); // Gauge value graphic (radial sweep, bar) color
+$colorGaugeTextValue: #fff; // Radial gauge text value
+$colorGaugeMeterTextValue: $colorGaugeTextValue; // Meter text value, overlaid on value bar
+$colorGaugeRange: $colorBodyFg; // Range text color
+$colorGaugeLimitHigh: rgba($colorLimitRedBg, 0.4);
+$colorGaugeLimitLow: $colorGaugeLimitHigh;
+$transitionTimeGauge: 150ms; // CSS transition time used to smooth needle gauge and meter value transitions
+$marginGaugeMeterValue: 10%; // Margin between meter value bar and bounds edges
 // Time Strip and Lists
 $colorCurrentBg: rgba($colorStatusAlert, 0.3);
 $colorCurrentFg: pullForward($colorBodyFg, 20%);

src/styles/_constants-maelstrom.scss

@@ -370,6 +370,16 @@ $legendHoverValueBg: rgba($colorBodyFg, 0.2);
 $legendTableHeadBg: rgba($colorBodyFg, 0.15);
 $colorPlotLimitLineBg: rgba($colorBodyBg, 0.2);
 
+// Gauges
+$colorGaugeBg: pullForward($colorBodyBg, 5%); // Gauge radial area background, meter background
+$colorGaugeValue: rgba(#fff, 0.3); // Gauge value graphic (radial sweep, bar) color
+$colorGaugeTextValue: #fff; // Radial gauge text value
+$colorGaugeMeterTextValue: $colorGaugeTextValue; // Meter text value, overlaid on value bar
+$colorGaugeRange: $colorBodyFg; // Range text color
+$colorGaugeLimitHigh: rgba($colorLimitRedBg, 0.4);
+$colorGaugeLimitLow: $colorGaugeLimitHigh;
+$transitionTimeGauge: 150ms; // CSS transition time used to smooth needle gauge and meter value transitions
+$marginGaugeMeterValue: 10%; // Margin between meter value bar and bounds edges
 // Time Strip and Lists
 $colorCurrentBg: rgba($colorStatusAlert, 0.3);
 $colorCurrentFg: pullForward($colorBodyFg, 20%);

src/styles/_constants-snow.scss

@@ -366,6 +366,16 @@ $legendHoverValueBg: rgba($colorBodyFg, 0.2);
 $legendTableHeadBg: rgba($colorBodyFg, 0.15);
 $colorPlotLimitLineBg: rgba($colorBodyBg, 0.4);
 
+// Gauges
+$colorGaugeBg: pullForward($colorBodyBg, 20%); // Gauge radial area background, meter background
+$colorGaugeValue: rgba(#000, 0.3); // Gauge value graphic (radial sweep, bar) color
+$colorGaugeTextValue: pullForward($colorBodyFg, 20%); // Radial gauge text value
+$colorGaugeMeterTextValue: $colorGaugeTextValue; // Meter text value, overlaid on value bar
+$colorGaugeRange: $colorBodyFg; // Range text color
+$colorGaugeLimitHigh: rgba($colorLimitRedBg, 0.2);
+$colorGaugeLimitLow: $colorGaugeLimitHigh;
+$transitionTimeGauge: 150ms; // CSS transition time used to smooth needle gauge and meter value transitions
+$marginGaugeMeterValue: 10%; // Margin between meter value bar and bounds edges
 // Time Strip and Lists
 $colorCurrentBg: rgba($colorStatusAlert, 0.3);
 $colorCurrentFg: pullForward($colorBodyFg, 20%);

src/styles/_forms.scss

@@ -70,8 +70,24 @@
         padding: $formTBPad $formLRPad;
         text-transform: uppercase;
     }
+
+    &--sub-grid {
+        // 3 columns: <req> <label> <input/control>
+        display: grid;
+        grid-column-gap: $interiorMargin;
+        grid-template-columns: 20px max-content 1fr;
+        grid-row-gap: $interiorMargin;
+        margin-top: $interiorMarginLg;
+        width: max-content;
+
+        .c-form__row {
+            display: contents;
+        }
+    }
 }
 
+
+
 .c-form-row {
     align-items: start;
 

src/styles/vue-styles.scss

@@ -53,6 +53,7 @@
 @import "../ui/toolbar/components/toolbar-checkbox.scss";
 @import "./notebook.scss";
 @import "../plugins/notebook/components/sidebar.scss";
+@import "../plugins/gauge/gauge.scss";
 
 #splash-screen {
      display: none;

src/ui/inspector/details/Properties.vue

@@ -166,7 +166,8 @@ export default {
             }
 
             return definition.form
-                .map((field) => {
+                .filter(field => !field.hideFromInspector)
+                .map(field => {
                     let path = field.property;
                     if (typeof path === 'string') {
                         path = [path];

src/ui/preview/Preview.vue

@@ -128,7 +128,7 @@ export default {
                 return;
             }
 
-            const isExistingView = viewProvider.key === this.existingView?.key;
+            const isExistingView = viewProvider.key === this.existingView.key;
 
             this.clear();