Mercurial > gemma
view client/src/components/fairway/Fairwayprofile.vue @ 3089:813309225e35
Made 'go vet' happy again.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Sun, 21 Apr 2019 19:02:35 +0200 |
parents | 563176194d74 |
children | 136b86794453 |
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<template> <div class="d-flex flex-fill"> <DiagramLegend> <div class="legend"> <span style="background-color: #5995ff"></span> Water </div> <div class="legend"> <span style="background-color: #1f4fff"></span> Fairway </div> <div class="legend"> <span style="background-color: #4a2f06"></span> Ground </div> <div> <button @click="downloadPDF" type="button" class="btn btn-sm btn-info d-block w-100 mt-2" > <translate>Export to PDF</translate> </button> </div> </DiagramLegend> <div ref="diagramContainer" class="d-flex flex-fill justify-content-center align-items-center diagram-container" > <div v-if="!fairwayData"> <translate>No data available.</translate> </div> </div> </div> </template> <script> /* This is Free Software under GNU Affero General Public License v >= 3.0 * without warranty, see README.md and license for details. * * SPDX-License-Identifier: AGPL-3.0-or-later * License-Filename: LICENSES/AGPL-3.0.txt * * Copyright (C) 2018 by via donau * – Österreichische Wasserstraßen-Gesellschaft mbH * Software engineering by Intevation GmbH * * Author(s): * Thomas Junk <thomas.junk@intevation.de> * Markus Kottländer <markus.kottlaender@intevation.de> */ import * as d3 from "d3"; import { mapState, mapGetters } from "vuex"; import debounce from "debounce"; import jsPDF from "jspdf"; import canvg from "canvg"; const GROUND_COLOR = "#4A2F06"; const WATER_COLOR = "#005DFF"; export default { name: "fairwayprofile", components: { DiagramLegend: () => import("@/components/DiagramLegend") }, data() { return { width: null, height: null, margin: { top: 20, right: 40, bottom: 30, left: 40 } }; }, computed: { ...mapGetters("fairwayprofile", ["totalLength"]), ...mapState("fairwayprofile", [ "additionalSurvey", "currentProfile", "startPoint", "endPoint", "fairwayData", "maxAlt", "referenceWaterLevel", "selectedWaterLevel", "waterLevels" ]), selectedSurvey: { get() { return this.$store.state.bottlenecks.selectedSurvey; } }, selectedBottleneck: { get() { return this.$store.state.bottlenecks.selectedBottleneck; } }, ...mapState("bottlenecks", ["selectedSurvey"]), relativeWaterLevelDelta() { return this.selectedWaterLevel.value - this.referenceWaterLevel; }, currentData() { if ( !this.selectedSurvey || !this.currentProfile.hasOwnProperty(this.selectedSurvey.date_info) ) return []; return this.currentProfile[this.selectedSurvey.date_info].points; }, additionalData() { if ( !this.additionalSurvey || !this.currentProfile.hasOwnProperty(this.additionalSurvey.date_info) ) return []; return this.currentProfile[this.additionalSurvey.date_info].points; }, xScale() { return [0, this.totalLength]; }, yScaleRight() { //ToDO calcReleativeDepth(this.maxAlt) to get the // maximum depth according to the actual waterlevel // additionally: take the one which is higher reference or current waterlevel const DELTA = this.maxAlt * 1.1 - this.maxAlt; return [this.maxAlt * 1 + DELTA, -DELTA]; } }, watch: { currentData() { this.drawDiagram(); }, additionalData() { this.drawDiagram(); }, width() { this.drawDiagram(); }, height() { this.drawDiagram(); }, waterLevels() { this.drawDiagram(); }, selectedWaterLevel() { this.drawDiagram(); }, fairwayData() { this.drawDiagram(); } }, methods: { downloadPDF() { var svg = this.$refs.diagramContainer.innerHTML; var fairwayInfo = this.selectedBottleneck + " (" + this.selectedSurvey.date_info + ")"; if (svg) { svg = svg.replace(/\r?\n|\r/g, "").trim(); } var pdf = new jsPDF("l", "mm", "a3"); var canvas = document.createElement("canvas"); canvas.width = window.innerWidth; canvas.height = window.innerHeight / 2; canvg(canvas, svg, { ignoreMouse: true, ignoreAnimation: true, ignoreDimensions: true }); var imgData = canvas.toDataURL("image/png"); pdf.addImage(imgData, "PNG", 40, 60, 380, 130); // Fairway profile info for the pdf title pdf.setTextColor("steelblue"); pdf.setFontSize(22); pdf.setFontStyle("bold"); pdf.text(fairwayInfo, 140, 30); // Diagram legend pdf.setFontSize(10); pdf.setTextColor("black"); pdf.setDrawColor("white"); pdf.setFillColor("#5995ff"); pdf.circle(60, 190, 2, "FD"); pdf.text(63, 191, "Water"); pdf.setFillColor("#1f4fff"); pdf.circle(60, 195, 2, "FD"); pdf.text(63, 196, "Fairway"); pdf.setFillColor("#4a2f06"); pdf.circle(60, 200, 2, "FD"); pdf.text(63, 201, "Ground"); pdf.save("Fairwayprofile diagram"); }, calcRelativeDepth(depth) { /* takes a depth value and substracts the delta of the relative waterlevel * say the reference level is above the current level, the ground is nearer, * thus, the depth is lower. * * E.g.: * * Reference waterlevel 5m, current 4m => delta = -1m * If the distance to the ground was 3m from the 5m mark * it is now only 2m from the current waterlevel. * * Vice versa: * * If the reference level is 5m and the current 6m => delta = +1m * The ground is one meter farer away from the current waterlevel * */ return depth - this.relativeWaterLevelDelta; }, drawDiagram() { d3.select(".diagram-container svg").remove(); this.scaleFairwayProfile(); let svg = d3.select(".diagram-container").append("svg"); svg.attr("width", "100%"); svg.attr("height", "100%"); const width = this.width - this.margin.right - 1.5 * this.margin.left; const height = this.height - this.margin.top - 2 * this.margin.bottom; const currentData = this.currentData; const additionalData = this.additionalData; const { xScale, yScaleRight, graph } = this.generateCoordinates( svg, height, width ); if (!this.height || !this.width) return; // do not try to render when height and width are unknown this.drawWaterlevel({ graph, xScale, yScaleRight, height }); this.drawLabels({ graph, height }); if (currentData) { this.drawProfile({ graph, xScale, yScaleRight, currentData, height, color: GROUND_COLOR, strokeColor: "black", opacity: 1 }); } if (additionalData) { this.drawProfile({ graph, xScale, yScaleRight, currentData: additionalData, height, color: GROUND_COLOR, strokeColor: "#943007", opacity: 0.6 }); } this.drawFairway({ graph, xScale, yScaleRight }); }, drawFairway({ graph, xScale, yScaleRight }) { if (this.fairwayData === undefined) { return; } for (let data of this.fairwayData) { const [startPoint, endPoint, depth] = data.coordinates[0]; const style = data.style(); let fairwayArea = d3 .area() .x(function(d) { return xScale(d.x); }) .y0(yScaleRight(0)) .y1(function(d) { return yScaleRight(d.y); }); graph .append("path") .datum([{ x: startPoint, y: depth }, { x: endPoint, y: depth }]) .attr("fill", "#002AFF") .attr("fill-opacity", 0.65) .attr("stroke", style[0].getStroke().getColor()) .attr("d", fairwayArea); } }, drawLabels({ graph, height }) { graph .append("text") .attr("transform", ["rotate(-90)"]) .attr("y", this.width - 70) .attr("x", -(this.height - this.margin.top - this.margin.bottom) / 2) .attr("dy", "1em") .attr("fill", "black") .style("text-anchor", "middle") .text("Depth [m]"); graph .append("text") .attr("y", -50) .attr("x", -(height / 4)) .attr("dy", "1em") .attr("fill", "black") .style("text-anchor", "middle") .attr("transform", [ "translate(" + this.width / 2 + "," + this.height + ")", "rotate(0)" ]) .text("Width [m]"); }, generateCoordinates(svg, height, width) { let xScale = d3 .scaleLinear() .domain(this.xScale) .rangeRound([0, width]); xScale.ticks(5); let yScaleRight = d3 .scaleLinear() .domain(this.yScaleRight) .rangeRound([height, 0]); let xAxis = d3.axisBottom(xScale); let yAxis2 = d3.axisRight(yScaleRight); let graph = svg .append("g") .attr( "transform", "translate(" + this.margin.left + "," + this.margin.top + ")" ); graph .append("g") .attr("transform", "translate(0," + height + ")") .call(xAxis.ticks(5)) .selectAll(".tick text") .attr("fill", "black") .select(function() { return this.parentNode; }) .selectAll(".tick line") .attr("stroke", "black"); graph .append("g") .attr("transform", "translate(" + width + ",0)") .call(yAxis2) .selectAll(".tick text") .attr("fill", "black") .select(function() { return this.parentNode; }) .selectAll(".tick line") .attr("stroke", "black"); graph.selectAll(".domain").attr("stroke", "black"); return { xScale, yScaleRight, graph }; }, drawWaterlevel({ graph, xScale, yScaleRight, height }) { let waterArea = d3 .area() .x(function(d) { return xScale(d.x); }) .y0(height) .y1(function(d) { return yScaleRight(d.y); }); graph .append("path") .datum([{ x: 0, y: 0 }, { x: this.totalLength, y: 0 }]) .attr("fill-opacity", 0.65) .attr("fill", WATER_COLOR) .attr("stroke", WATER_COLOR) .attr("d", waterArea); }, drawProfile({ graph, xScale, yScaleRight, currentData, height, color, strokeColor, opacity }) { for (let part of currentData) { let profileLine = d3 .line() .x(d => { return xScale(d.x); }) .y(d => { return yScaleRight(d.y); }); let profileArea = d3 .area() .x(function(d) { return xScale(d.x); }) .y0(height) .y1(function(d) { return yScaleRight(d.y); }); graph .append("path") .datum(part) .attr("fill", color) .attr("stroke", color) .attr("stroke-width", 3) .attr("stroke-opacity", opacity) .attr("fill-opacity", opacity) .attr("d", profileArea); graph .append("path") .datum(part) .attr("fill", "none") .attr("stroke", strokeColor) .attr("stroke-linejoin", "round") .attr("stroke-linecap", "round") .attr("stroke-width", 3) .attr("stroke-opacity", opacity) .attr("fill-opacity", 0) .attr("d", profileLine); } }, scaleFairwayProfile() { if (!document.querySelector(".diagram-container")) return; const clientHeight = document.querySelector(".diagram-container") .clientHeight; const clientWidth = document.querySelector(".diagram-container") .clientWidth; if (!clientHeight || !clientWidth) return; this.height = clientHeight; this.width = clientWidth; } }, created() { window.addEventListener("resize", debounce(this.drawDiagram), 100); }, mounted() { this.drawDiagram(); }, updated() { this.drawDiagram(); }, destroyed() { window.removeEventListener("resize", debounce(this.drawDiagram)); } }; </script>