304 lines
9.0 KiB
Vue
304 lines
9.0 KiB
Vue
<script>
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import { scaleLinear, scaleTime } from 'd3-scale';
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import { axisLeft, axisBottom } from 'd3-axis';
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import { max, extent } from 'd3-array';
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import { select } from 'd3-selection';
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import GraphLegend from './graph/legend.vue';
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import GraphFlag from './graph/flag.vue';
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import GraphDeployment from './graph/deployment.vue';
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import GraphPath from './graph/path.vue';
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import MonitoringMixin from '../mixins/monitoring_mixins';
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import eventHub from '../event_hub';
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import measurements from '../utils/measurements';
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import { bisectDate, timeScaleFormat } from '../utils/date_time_formatters';
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import createTimeSeries from '../utils/multiple_time_series';
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import bp from '../../breakpoints';
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const d3 = { scaleLinear, scaleTime, axisLeft, axisBottom, max, extent, select };
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export default {
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components: {
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GraphLegend,
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GraphFlag,
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GraphDeployment,
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GraphPath,
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},
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mixins: [MonitoringMixin],
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props: {
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graphData: {
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type: Object,
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required: true,
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},
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updateAspectRatio: {
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type: Boolean,
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required: true,
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},
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deploymentData: {
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type: Array,
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required: true,
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},
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hoverData: {
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type: Object,
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required: false,
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default: () => ({}),
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},
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projectPath: {
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type: String,
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required: true,
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},
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tagsPath: {
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type: String,
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required: true,
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},
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},
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data() {
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return {
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baseGraphHeight: 450,
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baseGraphWidth: 600,
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graphHeight: 450,
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graphWidth: 600,
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graphHeightOffset: 120,
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margin: {},
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unitOfDisplay: '',
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yAxisLabel: '',
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legendTitle: '',
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reducedDeploymentData: [],
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measurements: measurements.large,
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currentData: {
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time: new Date(),
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value: 0,
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},
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currentDataIndex: 0,
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currentXCoordinate: 0,
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currentFlagPosition: 0,
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showFlag: false,
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showFlagContent: false,
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timeSeries: [],
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realPixelRatio: 1,
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};
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},
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computed: {
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outerViewBox() {
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return `0 0 ${this.baseGraphWidth} ${this.baseGraphHeight}`;
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},
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innerViewBox() {
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return `0 0 ${this.baseGraphWidth - 150} ${this.baseGraphHeight}`;
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},
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axisTransform() {
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return `translate(70, ${this.graphHeight - 100})`;
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},
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paddingBottomRootSvg() {
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return {
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paddingBottom: `${(Math.ceil(this.baseGraphHeight * 100) / this.baseGraphWidth) || 0}%`,
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};
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},
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deploymentFlagData() {
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return this.reducedDeploymentData.find(deployment => deployment.showDeploymentFlag);
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},
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},
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watch: {
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updateAspectRatio() {
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if (this.updateAspectRatio) {
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this.graphHeight = 450;
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this.graphWidth = 600;
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this.measurements = measurements.large;
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this.draw();
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eventHub.$emit('toggleAspectRatio');
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}
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},
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hoverData() {
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this.positionFlag();
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},
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},
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mounted() {
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this.draw();
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},
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methods: {
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draw() {
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const breakpointSize = bp.getBreakpointSize();
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const query = this.graphData.queries[0];
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this.margin = measurements.large.margin;
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if (breakpointSize === 'xs' || breakpointSize === 'sm') {
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this.graphHeight = 300;
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this.margin = measurements.small.margin;
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this.measurements = measurements.small;
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}
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this.unitOfDisplay = query.unit || '';
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this.yAxisLabel = this.graphData.y_label || 'Values';
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this.legendTitle = query.label || 'Average';
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this.graphWidth = this.$refs.baseSvg.clientWidth -
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this.margin.left - this.margin.right;
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this.graphHeight = this.graphHeight - this.margin.top - this.margin.bottom;
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this.baseGraphHeight = this.graphHeight;
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this.baseGraphWidth = this.graphWidth;
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// pixel offsets inside the svg and outside are not 1:1
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this.realPixelRatio = (this.$refs.baseSvg.clientWidth / this.baseGraphWidth);
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this.renderAxesPaths();
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this.formatDeployments();
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},
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handleMouseOverGraph(e) {
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let point = this.$refs.graphData.createSVGPoint();
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point.x = e.clientX;
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point.y = e.clientY;
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point = point.matrixTransform(this.$refs.graphData.getScreenCTM().inverse());
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point.x = point.x += 7;
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const firstTimeSeries = this.timeSeries[0];
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const timeValueOverlay = firstTimeSeries.timeSeriesScaleX.invert(point.x);
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const overlayIndex = bisectDate(firstTimeSeries.values, timeValueOverlay, 1);
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const d0 = firstTimeSeries.values[overlayIndex - 1];
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const d1 = firstTimeSeries.values[overlayIndex];
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if (d0 === undefined || d1 === undefined) return;
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const evalTime = timeValueOverlay - d0[0] > d1[0] - timeValueOverlay;
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const hoveredDataIndex = evalTime ? overlayIndex : (overlayIndex - 1);
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const hoveredDate = firstTimeSeries.values[hoveredDataIndex].time;
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const currentDeployXPos = this.mouseOverDeployInfo(point.x);
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eventHub.$emit('hoverChanged', {
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hoveredDate,
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currentDeployXPos,
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});
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},
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renderAxesPaths() {
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this.timeSeries = createTimeSeries(
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this.graphData.queries,
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this.graphWidth,
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this.graphHeight,
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this.graphHeightOffset,
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);
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if (this.timeSeries.length > 3) {
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this.baseGraphHeight = this.baseGraphHeight += (this.timeSeries.length - 3) * 20;
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}
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const axisXScale = d3.scaleTime()
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.range([0, this.graphWidth - 70]);
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const axisYScale = d3.scaleLinear()
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.range([this.graphHeight - this.graphHeightOffset, 0]);
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const allValues = this.timeSeries.reduce((all, { values }) => all.concat(values), []);
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axisXScale.domain(d3.extent(allValues, d => d.time));
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axisYScale.domain([0, d3.max(allValues.map(d => d.value))]);
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const xAxis = d3.axisBottom()
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.scale(axisXScale)
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.tickFormat(timeScaleFormat);
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const yAxis = d3.axisLeft()
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.scale(axisYScale)
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.ticks(measurements.yTicks);
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d3.select(this.$refs.baseSvg).select('.x-axis').call(xAxis);
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const width = this.graphWidth;
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d3.select(this.$refs.baseSvg).select('.y-axis').call(yAxis)
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.selectAll('.tick')
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.each(function createTickLines(d, i) {
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if (i > 0) {
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d3.select(this).select('line')
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.attr('x2', width)
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.attr('class', 'axis-tick');
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} // Avoid adding the class to the first tick, to prevent coloring
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}); // This will select all of the ticks once they're rendered
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},
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},
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};
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</script>
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<template>
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<div
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class="prometheus-graph"
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@mouseover="showFlagContent = true"
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@mouseleave="showFlagContent = false"
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>
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<h5 class="text-center graph-title">
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{{ graphData.title }}
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</h5>
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<div
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class="prometheus-svg-container"
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:style="paddingBottomRootSvg"
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>
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<svg
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:viewBox="outerViewBox"
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ref="baseSvg"
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>
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<g
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class="x-axis"
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:transform="axisTransform"
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/>
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<g
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class="y-axis"
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transform="translate(70, 20)"
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/>
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<graph-legend
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:graph-width="graphWidth"
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:graph-height="graphHeight"
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:margin="margin"
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:measurements="measurements"
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:legend-title="legendTitle"
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:y-axis-label="yAxisLabel"
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:time-series="timeSeries"
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:unit-of-display="unitOfDisplay"
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:current-data-index="currentDataIndex"
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/>
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<svg
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class="graph-data"
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:viewBox="innerViewBox"
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ref="graphData"
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>
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<graph-path
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v-for="(path, index) in timeSeries"
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:key="index"
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:generated-line-path="path.linePath"
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:generated-area-path="path.areaPath"
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:line-style="path.lineStyle"
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:line-color="path.lineColor"
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:area-color="path.areaColor"
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/>
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<graph-deployment
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:deployment-data="reducedDeploymentData"
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:graph-height="graphHeight"
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:graph-height-offset="graphHeightOffset"
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/>
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<rect
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class="prometheus-graph-overlay"
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:width="(graphWidth - 70)"
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:height="(graphHeight - 100)"
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transform="translate(-5, 20)"
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ref="graphOverlay"
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@mousemove="handleMouseOverGraph($event)"
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/>
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</svg>
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</svg>
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<graph-flag
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:real-pixel-ratio="realPixelRatio"
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:current-x-coordinate="currentXCoordinate"
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:current-data="currentData"
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:graph-height="graphHeight"
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:graph-height-offset="graphHeightOffset"
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:show-flag-content="showFlagContent"
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:time-series="timeSeries"
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:unit-of-display="unitOfDisplay"
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:current-data-index="currentDataIndex"
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:legend-title="legendTitle"
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:deployment-flag-data="deploymentFlagData"
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/>
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</div>
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</div>
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</template>
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