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<link rel="import" href="../../bower_components/polymer/polymer.html">
<link rel="import" href="../imports/plottable.html">
<link rel="import" href="../imports/lodash.html">
<!--
tf-chart (TFChart) creates an element that draws a line chart for dispalying event values.
It has the following settable properties:
tag: (required, string) - the name of the tag to load for this chart
selectedRuns: (required, string[]) - the runs the chart should display
xType: (required, string) - the way to display x values - allows "step" or "wall_time"
dataCoordinator: (required, TF.DataCoordinator) - the data coordinator for talking to backend
colorScale: (required, Plottable.Scales.Color) - maps from runs to colors
tooltipUpdater: (required, function) - allows the chart to modify tooltips
It exposes the following methods:
redraw() - cause the chart to re-render (useful if e.g. container size changed)
The data is expected to be an array of [wall_time, step, value] arrays.
The wall_time is serialized as seconds since epoch.
-->
<dom-module id="tf-chart">
<template>
<svg id="chartsvg"></svg>
<style>
:host {
-webkit-user-select: none;
-moz-user-select: none;
display: flex;
flex-direction: column;
flex-grow: 1;
flex-shrink: 1;
}
svg {
-webkit-user-select: none;
-moz-user-select: none;
flex-grow: 1;
flex-shrink: 1;
}
.plottable .crosshairs line.guide-line {
stroke: #777;
}
</style>
</template>
<script src="dragZoomInteraction.js"></script>
<script src="tf-chart.js"></script>
<script>
Polymer({
is: "tf-chart",
properties: {
type: String, // "scalar" or "compressedHistogram"
_chart: Object,
colorScale: Object,
tag: String,
selectedRuns: Array,
xType: String,
dataCoordinator: Object,
tooltipUpdater: Function,
_initialized: Boolean,
},
observers: [
"_makeChart(type, tag, dataCoordinator, tooltipUpdater, xType, colorScale, _initialized)",
"_changeRuns(_chart, selectedRuns.*)"
],
_changeRuns: function(chart, change) {
this._chart.changeRuns(this.selectedRuns);
this.redraw();
},
redraw: function() {
this._chart.redraw();
},
_constructor: function(type) {
if (type === "scalar") {
return TF.LineChart;
} else if (type === "compressedHistogram") {
return TF.HistogramChart;
} else {
throw new Error("Unrecognized chart type");
}
},
_makeChart: function(type, tag, dataCoordinator, tooltipUpdater, xType, colorScale, _initialized) {
if (!_initialized) {
return;
}
if (this._chart) this._chart.destroy();
var cns = this._constructor(type);
var chart = new cns(tag, dataCoordinator, tooltipUpdater, xType, colorScale);
var svg = d3.select(this.$.chartsvg);
this.async(function() {
chart.renderTo(svg);
this._chart = chart;
}, 350);
},
attached: function() {
this._initialized = true;
},
detached: function() {
this._initialized = false;
}
});
</script>
</dom-module>
|
