Files
openmct/platform/features/plot/src/modes/PlotStackMode.js
2017-04-05 14:52:46 -07:00

105 lines
4.1 KiB
JavaScript

/*****************************************************************************
* Open MCT, Copyright (c) 2014-2017, 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.
*****************************************************************************/
define(
["../SubPlot", "../elements/PlotPalette", "../elements/PlotPanZoomStackGroup"],
function (SubPlot, PlotPalette, PlotPanZoomStackGroup) {
/**
* Handles plotting in Stacked mode. In stacked mode, there
* is one sub-plot for each plotted object.
* @memberof platform/features/plot
* @constructor
* @implements {platform/features/plot.PlotModeHandler}
* @param {DomainObject[]} the domain objects to be plotted
*/
function PlotStackMode(telemetryObjects, subPlotFactory) {
var self = this;
this.panZoomStackGroup =
new PlotPanZoomStackGroup(telemetryObjects.length);
this.subplots = telemetryObjects.map(function (telemetryObject, i) {
return subPlotFactory.createSubPlot(
[telemetryObject],
self.panZoomStackGroup.getPanZoomStack(i)
);
});
}
PlotStackMode.prototype.plotTelemetryTo = function (subplot, prepared, index) {
var buffer = prepared.getLineBuffers()[index];
// Track the domain offset, used to bias domain values
// to minimize loss of precision when converted to 32-bit
// floating point values for display.
subplot.setDomainOffset(prepared.getDomainOffset());
// Draw the buffers. Always use the 0th color, because there
// is one line per plot.
subplot.getDrawingObject().lines = [{
buffer: buffer.getBuffer(),
color: PlotPalette.getFloatColor(0),
points: buffer.getLength()
}];
};
PlotStackMode.prototype.plotTelemetry = function (prepared) {
var self = this;
// Fit to the boundaries of the data, but don't
// override any user-initiated pan-zoom changes.
this.panZoomStackGroup.setBasePanZoom(
prepared.getOrigin(),
prepared.getDimensions()
);
this.subplots.forEach(function (subplot, index) {
self.plotTelemetryTo(subplot, prepared, index);
});
};
PlotStackMode.prototype.getSubPlots = function () {
return this.subplots;
};
PlotStackMode.prototype.isZoomed = function () {
return this.panZoomStackGroup.getDepth() > 1;
};
PlotStackMode.prototype.stepBackPanZoom = function () {
this.panZoomStackGroup.popPanZoom();
this.subplots.forEach(function (subplot) {
subplot.update();
});
};
PlotStackMode.prototype.unzoom = function () {
this.panZoomStackGroup.clearPanZoom();
this.subplots.forEach(function (subplot) {
subplot.update();
});
};
return PlotStackMode;
}
);