7370b1a87f
Use PlotLine and PlotLineBuffer from PlotUpdater, to enable merging of real-time and historical telemetry. WTD-806.
104 lines
3.9 KiB
JavaScript
104 lines
3.9 KiB
JavaScript
/*global define*/
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define(
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["../SubPlot", "../elements/PlotPalette", "../elements/PlotPanZoomStackGroup"],
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function (SubPlot, PlotPalette, PlotPanZoomStackGroup) {
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"use strict";
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/**
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* Handles plotting in Stacked mode. In stacked mode, there
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* is one sub-plot for each plotted object.
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* @constructor
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* @param {DomainObject[]} the domain objects to be plotted
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*/
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function PlotStackMode(telemetryObjects, subPlotFactory) {
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var domainOffset,
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panZoomStackGroup =
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new PlotPanZoomStackGroup(telemetryObjects.length),
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subplots = telemetryObjects.map(function (telemetryObject, i) {
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return subPlotFactory.createSubPlot(
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[telemetryObject],
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panZoomStackGroup.getPanZoomStack(i)
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);
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});
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function plotTelemetryTo(subplot, prepared, index) {
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var buffer = prepared.getLineBuffers()[index];
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// Track the domain offset, used to bias domain values
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// to minimize loss of precision when converted to 32-bit
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// floating point values for display.
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subplot.setDomainOffset(prepared.getDomainOffset());
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// Draw the buffers. Always use the 0th color, because there
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// is one line per plot.
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subplot.getDrawingObject().lines = [{
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buffer: buffer.getBuffer(),
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color: PlotPalette.getFloatColor(0),
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points: buffer.getLength()
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}];
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subplot.update();
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}
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function plotTelemetry(prepared) {
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// Fit to the boundaries of the data, but don't
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// override any user-initiated pan-zoom changes.
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panZoomStackGroup.setBasePanZoom(
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prepared.getOrigin(),
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prepared.getDimensions()
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);
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subplots.forEach(function (subplot, index) {
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plotTelemetryTo(subplot, prepared, index);
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});
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}
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return {
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/**
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* Plot telemetry to the sub-plot(s) managed by this mode.
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* @param {PlotPreparer} prepared the prepared data to plot
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*/
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plotTelemetry: plotTelemetry,
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/**
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* Get all sub-plots to be displayed in this mode; used
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* to populate the plot template.
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* @return {SubPlot[]} all sub-plots to display in this mode
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*/
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getSubPlots: function () {
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return subplots;
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},
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/**
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* Check if we are not in our base pan-zoom state (that is,
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* there are some temporary user modifications to the
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* current pan-zoom state.)
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* @returns {boolean} true if not in the base pan-zoom state
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*/
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isZoomed: function () {
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return panZoomStackGroup.getDepth() > 1;
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},
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/**
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* Undo the most recent pan/zoom change and restore
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* the prior state.
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*/
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stepBackPanZoom: function () {
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panZoomStackGroup.popPanZoom();
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subplots.forEach(function (subplot) {
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subplot.update();
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});
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},
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/**
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* Undo all pan/zoom changes and restore the initial state.
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*/
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unzoom: function () {
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panZoomStackGroup.clearPanZoom();
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subplots.forEach(function (subplot) {
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subplot.update();
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});
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}
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};
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}
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return PlotStackMode;
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}
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); |