mirror of
https://github.com/timberjoegithub/grafana-statusmap.git
synced 2026-07-21 23:42:03 +00:00
status-heatmap-plugin for Grafana
- fixes for 5.1.3 - nulls as empty
This commit is contained in:
Ivan Mikheykin
@@ -0,0 +1,620 @@
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import _ from 'lodash';
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import $ from 'jquery';
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import moment from 'moment';
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import kbn from 'app/core/utils/kbn';
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import {appEvents, contextSrv} from 'app/core/core';
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import {tickStep, getScaledDecimals, getFlotTickSize} from 'app/core/utils/ticks';
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import d3 from 'd3';
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import * as d3ScaleChromatic from './libs/d3-scale-chromatic/index';
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import {StatusHeatmapTooltip} from './tooltip';
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let MIN_CARD_SIZE = 1,
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CARD_PADDING = 1,
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CARD_ROUND = 0,
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DATA_RANGE_WIDING_FACTOR = 1.2,
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DEFAULT_X_TICK_SIZE_PX = 100,
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DEFAULT_Y_TICK_SIZE_PX = 50,
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X_AXIS_TICK_PADDING = 10,
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Y_AXIS_TICK_PADDING = 5,
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MIN_SELECTION_WIDTH = 2;
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export default function link(scope, elem, attrs, ctrl) {
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let data, cardsData, timeRange, panel, heatmap;
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// $heatmap is JQuery object, but heatmap is D3
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let $heatmap = elem.find('.status-heatmap-panel');
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let tooltip = new StatusHeatmapTooltip($heatmap, scope);
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let width, height,
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yScale, xScale,
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chartWidth, chartHeight,
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chartTop, chartBottom,
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yAxisWidth, xAxisHeight,
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cardPadding, cardRound,
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cardWidth, cardHeight,
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colorScale, opacityScale,
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mouseUpHandler;
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let yOffset = 0;
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let selection = {
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active: false,
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x1: -1,
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x2: -1
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};
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let padding = {left: 0, right: 0, top: 0, bottom: 0},
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margin = {left: 25, right: 15, top: 10, bottom: 20},
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dataRangeWidingFactor = DATA_RANGE_WIDING_FACTOR;
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ctrl.events.on('render', () => {
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render();
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// ctrl.renderingCompleted();
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});
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function setElementHeight() {
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try {
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var height = ctrl.height || panel.height || ctrl.row.height;
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if (_.isString(height)) {
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height = parseInt(height.replace('px', ''), 10);
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}
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height -= panel.legend.show ? 28 : 11; // bottom padding and space for legend
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$heatmap.css('height', height + 'px');
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return true;
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} catch (e) { // IE throws errors sometimes
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return false;
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}
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}
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function getYAxisWidth(elem) {
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let axis_text = elem.selectAll(".axis-y text").nodes();
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let max_text_width = _.max(_.map(axis_text, text => {
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// Use SVG getBBox method
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return text.getBBox().width;
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}));
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return max_text_width;
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}
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function getXAxisHeight(elem) {
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let axis_line = elem.select(".axis-x line");
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if (!axis_line.empty()) {
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let axis_line_position = parseFloat(elem.select(".axis-x line").attr("y2"));
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let canvas_width = parseFloat(elem.attr("height"));
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return canvas_width - axis_line_position;
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} else {
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// Default height
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return 30;
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}
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}
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function addXAxis() {
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scope.xScale = xScale = d3.scaleTime()
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.domain([timeRange.from, timeRange.to])
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.range([0, chartWidth]);
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let ticks = chartWidth / DEFAULT_X_TICK_SIZE_PX;
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let grafanaTimeFormatter = grafanaTimeFormat(ticks, timeRange.from, timeRange.to);
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let timeFormat;
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let dashboardTimeZone = ctrl.dashboard.getTimezone();
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if (dashboardTimeZone === 'utc') {
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timeFormat = d3.utcFormat(grafanaTimeFormatter);
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} else {
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timeFormat = d3.timeFormat(grafanaTimeFormatter);
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}
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let xAxis = d3.axisBottom(xScale)
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.ticks(ticks)
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.tickFormat(timeFormat)
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.tickPadding(X_AXIS_TICK_PADDING)
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.tickSize(chartHeight);
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let posY = chartTop;
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let posX = yAxisWidth;
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heatmap.append("g")
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.attr("class", "axis axis-x")
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.attr("transform", "translate(" + posX + "," + posY + ")")
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.call(xAxis);
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// Remove horizontal line in the top of axis labels (called domain in d3)
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heatmap.select(".axis-x").select(".domain").remove();
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}
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function addYAxis() {
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let ticks = _.map(data, d => d.target);
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// Set default Y min and max if no data
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if (_.isEmpty(data)) {
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ticks = [''];
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}
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let range = [];
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let step = chartHeight / ticks.length;
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range.push(chartHeight - yOffset);
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for (let i = 1; i < ticks.length; i++) {
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range.push(chartHeight - step * i - yOffset);
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}
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console.log('yRange', range, yOffset);
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scope.yScale = yScale = d3.scaleOrdinal()
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.domain(ticks)
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.range(range);
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let yAxis = d3.axisLeft(yScale)
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.tickValues(ticks)
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.tickSizeInner(0 - width)
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.tickPadding(Y_AXIS_TICK_PADDING);
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heatmap.append("g")
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.attr("class", "axis axis-y")
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.call(yAxis);
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// Calculate Y axis width first, then move axis into visible area
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let posY = margin.top;
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let posX = getYAxisWidth(heatmap) + Y_AXIS_TICK_PADDING;
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heatmap.select(".axis-y").attr("transform", "translate(" + posX + "," + posY + ")");
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// Remove vertical line in the right of axis labels (called domain in d3)
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heatmap.select(".axis-y").select(".domain").remove();
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heatmap.select(".axis-y").selectAll(".tick line").remove();
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}
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// Wide Y values range and anjust to bucket size
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function wideYAxisRange(min, max, tickInterval) {
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let y_widing = (max * (dataRangeWidingFactor - 1) - min * (dataRangeWidingFactor - 1)) / 2;
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let y_min, y_max;
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if (tickInterval === 0) {
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y_max = max * dataRangeWidingFactor;
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y_min = min - min * (dataRangeWidingFactor - 1);
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tickInterval = (y_max - y_min) / 2;
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} else {
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y_max = Math.ceil((max + y_widing) / tickInterval) * tickInterval;
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y_min = Math.floor((min - y_widing) / tickInterval) * tickInterval;
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}
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// Don't wide axis below 0 if all values are positive
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if (min >= 0 && y_min < 0) {
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y_min = 0;
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}
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return {y_min, y_max};
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}
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function tickValueFormatter(decimals, scaledDecimals = null) {
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let format = panel.yAxis.format;
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return function(value) {
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return kbn.valueFormats[format](value, decimals, scaledDecimals);
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};
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}
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function fixYAxisTickSize() {
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heatmap.select(".axis-y")
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.selectAll(".tick line")
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.attr("x2", chartWidth);
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}
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function addAxes() {
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addYAxis();
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yAxisWidth = getYAxisWidth(heatmap) + Y_AXIS_TICK_PADDING;
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chartWidth = width - yAxisWidth - margin.right;
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// fixYAxisTickSize();
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//
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addXAxis();
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xAxisHeight = getXAxisHeight(heatmap);
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if (!panel.yAxis.show) {
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heatmap.select(".axis-y").selectAll("line").style("opacity", 0);
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}
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if (!panel.xAxis.show) {
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heatmap.select(".axis-x").selectAll("line").style("opacity", 0);
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}
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}
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function addHeatmapCanvas() {
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let heatmap_elem = $heatmap[0];
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width = Math.floor($heatmap.width()) - padding.right;
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height = Math.floor($heatmap.height()) - padding.bottom;
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chartHeight = height - margin.top - margin.bottom - yOffset;
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chartTop = margin.top;
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chartBottom = chartTop + chartHeight;
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cardPadding = panel.cards.cardPadding !== null ? panel.cards.cardPadding : CARD_PADDING;
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cardRound = panel.cards.cardRound !== null ? panel.cards.cardRound : CARD_ROUND;
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if (heatmap) {
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heatmap.remove();
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}
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heatmap = d3.select(heatmap_elem)
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.append("svg")
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.attr("width", width)
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.attr("height", height);
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}
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function addHeatmap() {
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addHeatmapCanvas();
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let maxValue = panel.color.max || cardsData.maxValue;
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let minValue = panel.color.min || cardsData.minValue;
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colorScale = getColorScale(maxValue, minValue);
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setOpacityScale(maxValue);
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setCardSize();
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addAxes();
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let cards = heatmap.selectAll(".status-heatmap-card").data(cardsData.cards);
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cards.append("title");
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cards = cards.enter().append("rect")
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.attr("value", c => c.value)
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.attr("xVal", c => c.x)
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.attr("x", getCardX)
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.attr("width", getCardWidth)
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.attr("yVal", c => c.y)
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.attr("y", getCardY)
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.attr("height", getCardHeight)
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.attr("rx", cardRound)
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.attr("ry", cardRound)
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.attr("class", "bordered status-heatmap-card")
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.style("fill", getCardColor)
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.style("stroke", getCardColor)
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.style("stroke-width", 0)
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.style("opacity", getCardOpacity);
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let $cards = $heatmap.find(".status-heatmap-card");
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$cards.on("mouseenter", (event) => {
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tooltip.mouseOverBucket = true;
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highlightCard(event);
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let current_card = d3.select(event.target);
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tooltip.show(event, current_card.attr('xVal'), current_card.attr('yVal'), current_card.attr('value'));
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})
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.on("mouseleave", (event) => {
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tooltip.mouseOverBucket = false;
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resetCardHighLight(event);
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});
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}
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function highlightCard(event) {
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let color = d3.select(event.target).style("fill");
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let highlightColor = d3.color(color).darker(2);
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let strokeColor = d3.color(color).brighter(4);
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let current_card = d3.select(event.target);
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tooltip.originalFillColor = color;
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current_card.style("fill", highlightColor)
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.style("stroke", strokeColor)
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.style("stroke-width", 1);
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}
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function resetCardHighLight(event) {
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d3.select(event.target).style("fill", tooltip.originalFillColor)
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.style("stroke", tooltip.originalFillColor)
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.style("stroke-width", 0);
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}
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function getColorScale(maxValue, minValue = 0) {
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let colorScheme = _.find(ctrl.colorSchemes, {value: panel.color.colorScheme});
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let colorInterpolator = d3ScaleChromatic[colorScheme.value];
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let colorScaleInverted = colorScheme.invert === 'always' ||
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(colorScheme.invert === 'dark' && !contextSrv.user.lightTheme);
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if (maxValue == minValue)
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maxValue = minValue + 1;
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let start = colorScaleInverted ? maxValue : minValue;
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let end = colorScaleInverted ? minValue : maxValue;
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return d3.scaleSequential(colorInterpolator).domain([start, end]);
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}
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function setOpacityScale(maxValue) {
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if (panel.color.colorScale === 'linear') {
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opacityScale = d3.scaleLinear()
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.domain([0, maxValue])
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.range([0, 1]);
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} else if (panel.color.colorScale === 'sqrt') {
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opacityScale = d3.scalePow().exponent(panel.color.exponent)
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.domain([0, maxValue])
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.range([0, 1]);
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}
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}
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function setCardSize() {
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let xGridSize = Math.floor(chartWidth / cardsData.xBucketSize);
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let yGridSize = Math.floor(chartHeight / cardsData.yBucketSize);
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cardWidth = xGridSize - cardPadding * 2;
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cardHeight = yGridSize ? yGridSize - cardPadding * 2 : 0;
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yOffset = cardHeight / 2;
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}
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function getCardX(d) {
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let x;
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if (xScale(d.x) < 0) {
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// Cut card left to prevent overlay
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x = yAxisWidth + cardPadding;
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} else {
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x = xScale(d.x) + yAxisWidth + cardPadding;
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}
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return x;
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}
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function getCardWidth(d) {
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let w;
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if (xScale(d.x) < 0) {
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// Cut card left to prevent overlay
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let cutted_width = xScale(d.x) + cardWidth;
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w = cutted_width > 0 ? cutted_width : 0;
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} else if (xScale(d.x) + cardWidth > chartWidth) {
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// Cut card right to prevent overlay
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w = chartWidth - xScale(d.x) - cardPadding;
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} else {
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w = cardWidth;
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}
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// Card width should be MIN_CARD_SIZE at least
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w = Math.max(w, MIN_CARD_SIZE);
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return w;
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}
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function getCardY(d) {
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let y = yScale(d.y);
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y = y + chartTop - cardHeight - cardPadding + yOffset;
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return y;
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}
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function getCardHeight(d) {
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let y = yScale(d.y) + chartTop - cardHeight - cardPadding;
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let h = cardHeight;
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// Cut card height to prevent overlay
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// if (y < chartTop) {
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// h = yScale(d.y) - cardPadding;
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// } else if (yScale(d.y) > chartBottom) {
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// h = chartBottom - y;
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// } else if (y + cardHeight > chartBottom) {
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// h = chartBottom - y;
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// }
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// Height can't be more than chart height
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h = Math.min(h, chartHeight);
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// Card height should be MIN_CARD_SIZE at least
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h = Math.max(h, MIN_CARD_SIZE);
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return h;
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}
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function getCardColor(d) {
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if (panel.color.mode === 'opacity') {
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return panel.color.cardColor;
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} else {
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return colorScale(d.value);
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}
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}
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function getCardOpacity(d) {
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if (panel.nullPointMode === 'null' && d.value == null ) {
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return 0;
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}
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if (panel.color.mode === 'opacity') {
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return opacityScale(d.value);
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} else {
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return 1;
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}
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}
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/////////////////////////////
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// Selection and crosshair //
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/////////////////////////////
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// Shared crosshair and tooltip
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appEvents.on('graph-hover', event => {
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drawSharedCrosshair(event.pos);
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}, scope);
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appEvents.on('graph-hover-clear', () => {
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clearCrosshair();
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}, scope);
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function onMouseDown(event) {
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selection.active = true;
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selection.x1 = event.offsetX;
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mouseUpHandler = function() {
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onMouseUp();
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};
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$(document).one("mouseup", mouseUpHandler);
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}
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function onMouseUp() {
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$(document).unbind("mouseup", mouseUpHandler);
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mouseUpHandler = null;
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selection.active = false;
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let selectionRange = Math.abs(selection.x2 - selection.x1);
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if (selection.x2 >= 0 && selectionRange > MIN_SELECTION_WIDTH) {
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let timeFrom = xScale.invert(Math.min(selection.x1, selection.x2) - yAxisWidth);
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let timeTo = xScale.invert(Math.max(selection.x1, selection.x2) - yAxisWidth);
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ctrl.timeSrv.setTime({
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from: moment.utc(timeFrom),
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to: moment.utc(timeTo)
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});
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}
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clearSelection();
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}
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function onMouseLeave() {
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appEvents.emit('graph-hover-clear');
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clearCrosshair();
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}
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function onMouseMove(event) {
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if (!heatmap) { return; }
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if (selection.active) {
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// Clear crosshair and tooltip
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clearCrosshair();
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tooltip.destroy();
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selection.x2 = limitSelection(event.offsetX);
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drawSelection(selection.x1, selection.x2);
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} else {
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emitGraphHoverEvet(event);
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drawCrosshair(event.offsetX);
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}
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}
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function emitGraphHoverEvet(event) {
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let x = xScale.invert(event.offsetX - yAxisWidth).valueOf();
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let y = yScale(event.offsetY);
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||||
let pos = {
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pageX: event.pageX,
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pageY: event.pageY,
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||||
x: x, x1: x,
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y: y, y1: y,
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panelRelY: null
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||||
};
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||||
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||||
// Set minimum offset to prevent showing legend from another panel
|
||||
pos.panelRelY = Math.max(event.offsetY / height, 0.001);
|
||||
|
||||
// broadcast to other graph panels that we are hovering
|
||||
appEvents.emit('graph-hover', {pos: pos, panel: panel});
|
||||
}
|
||||
|
||||
function limitSelection(x2) {
|
||||
x2 = Math.max(x2, yAxisWidth);
|
||||
x2 = Math.min(x2, chartWidth + yAxisWidth);
|
||||
return x2;
|
||||
}
|
||||
|
||||
function drawSelection(posX1, posX2) {
|
||||
if (heatmap) {
|
||||
heatmap.selectAll(".status-heatmap-selection").remove();
|
||||
let selectionX = Math.min(posX1, posX2);
|
||||
let selectionWidth = Math.abs(posX1 - posX2);
|
||||
|
||||
if (selectionWidth > MIN_SELECTION_WIDTH) {
|
||||
heatmap.append("rect")
|
||||
.attr("class", "status-heatmap-selection")
|
||||
.attr("x", selectionX)
|
||||
.attr("width", selectionWidth)
|
||||
.attr("y", chartTop)
|
||||
.attr("height", chartHeight);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function clearSelection() {
|
||||
selection.x1 = -1;
|
||||
selection.x2 = -1;
|
||||
|
||||
if (heatmap) {
|
||||
heatmap.selectAll(".status-heatmap-selection").remove();
|
||||
}
|
||||
}
|
||||
|
||||
function drawCrosshair(position) {
|
||||
if (heatmap) {
|
||||
heatmap.selectAll(".status-heatmap-crosshair").remove();
|
||||
|
||||
let posX = position;
|
||||
posX = Math.max(posX, yAxisWidth);
|
||||
posX = Math.min(posX, chartWidth + yAxisWidth);
|
||||
|
||||
heatmap.append("g")
|
||||
.attr("class", "status-heatmap-crosshair")
|
||||
.attr("transform", "translate(" + posX + ",0)")
|
||||
.append("line")
|
||||
.attr("x1", 1)
|
||||
.attr("y1", chartTop)
|
||||
.attr("x2", 1)
|
||||
.attr("y2", chartBottom)
|
||||
.attr("stroke-width", 1);
|
||||
}
|
||||
}
|
||||
|
||||
function drawSharedCrosshair(pos) {
|
||||
if (heatmap && ctrl.dashboard.graphTooltip !== 0) {
|
||||
let posX = xScale(pos.x) + yAxisWidth;
|
||||
drawCrosshair(posX);
|
||||
}
|
||||
}
|
||||
|
||||
function clearCrosshair() {
|
||||
if (heatmap) {
|
||||
heatmap.selectAll(".status-heatmap-crosshair").remove();
|
||||
}
|
||||
}
|
||||
|
||||
function render() {
|
||||
data = ctrl.data;
|
||||
panel = ctrl.panel;
|
||||
timeRange = ctrl.range;
|
||||
cardsData = ctrl.cardsData;
|
||||
|
||||
if (!setElementHeight() || !data) {
|
||||
return;
|
||||
}
|
||||
|
||||
// Draw default axes and return if no data
|
||||
if (_.isEmpty(cardsData.cards)) {
|
||||
addHeatmapCanvas();
|
||||
addAxes();
|
||||
return;
|
||||
}
|
||||
|
||||
addHeatmap();
|
||||
scope.yAxisWidth = yAxisWidth;
|
||||
scope.xAxisHeight = xAxisHeight;
|
||||
scope.chartHeight = chartHeight;
|
||||
scope.chartWidth = chartWidth;
|
||||
scope.chartTop = chartTop;
|
||||
}
|
||||
|
||||
// Register selection listeners
|
||||
$heatmap.on("mousedown", onMouseDown);
|
||||
$heatmap.on("mousemove", onMouseMove);
|
||||
$heatmap.on("mouseleave", onMouseLeave);
|
||||
}
|
||||
|
||||
function grafanaTimeFormat(ticks, min, max) {
|
||||
if (min && max && ticks) {
|
||||
let range = max - min;
|
||||
let secPerTick = (range/ticks) / 1000;
|
||||
let oneDay = 86400000;
|
||||
let oneYear = 31536000000;
|
||||
|
||||
if (secPerTick <= 45) {
|
||||
return "%H:%M:%S";
|
||||
}
|
||||
if (secPerTick <= 7200 || range <= oneDay) {
|
||||
return "%H:%M";
|
||||
}
|
||||
if (secPerTick <= 80000) {
|
||||
return "%m/%d %H:%M";
|
||||
}
|
||||
if (secPerTick <= 2419200 || range <= oneYear) {
|
||||
return "%m/%d";
|
||||
}
|
||||
return "%Y-%m";
|
||||
}
|
||||
|
||||
return "%H:%M";
|
||||
}
|
||||
Reference in New Issue
Block a user