qwc2/plugins/HeightProfile.js

QGIS Web Client

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 * Copyright 2017-2024 Sourcepole AG
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree.
 */import React from"react";import{Line}from"react-chartjs-2";import ReactDOM from"react-dom";import{connect}from"react-redux";import axios from"axios";import{Chart as ChartJS,CategoryScale,LinearScale,PointElement,LineElement,Title,Tooltip,Filler,BubbleController}from"chart.js";import FileSaver from"file-saver";import isEmpty from"lodash.isempty";import PropTypes from"prop-types";import{v1 as uuidv1}from"uuid";import{addMarker,removeMarker}from"../actions/layers";import{changeMeasurementState}from"../actions/measurement";import ResizeableWindow from"../components/ResizeableWindow";import Spinner from"../components/widgets/Spinner";import{getElevationInterface}from"../utils/ElevationInterface";import LayerUtils from"../utils/LayerUtils";import LocaleUtils from"../utils/LocaleUtils";import MapUtils from"../utils/MapUtils";import MeasureUtils from"../utils/MeasureUtils";import MiscUtils from"../utils/MiscUtils";import VectorLayerUtils from"../utils/VectorLayerUtils";import"./style/HeightProfile.css";ChartJS.register(CategoryScale,LinearScale,PointElement,LineElement,Title,Tooltip,Filler,BubbleController);var HeightProfilePrintDialog_=/*#__PURE__*/function(_React$PureComponent){function HeightProfilePrintDialog_(props){var _this;_classCallCheck(this,HeightProfilePrintDialog_);_this=_callSuper(this,HeightProfilePrintDialog_,[props]);_defineProperty(_this,"state",{initialized:false,imageUrl:""});_defineProperty(_this,"closePrintWindow",function(){_this.externalWindow.close()});_defineProperty(_this,"setWindowContent",function(){_this.externalWindow.addEventListener("beforeunload",_this.props.onClose,false);var container=_this.externalWindow.document.getElementById("heightprofilecontainer");if(container){var printBtn=_this.externalWindow.document.createElement("div");printBtn.id="print";printBtn.style.marginBottom="1em";printBtn.innerHTML="<style type=\"text/css\">@media print{ #print { display: none; }}</style>"+"<button onClick=\"(function(){window.print();})()\">"+LocaleUtils.tr("heightprofile.print")+"</button>";container.appendChild(printBtn);_this.imageEl=_this.externalWindow.document.createElement("div");_this.imageEl.id="map";_this.imageEl.innerHTML=LocaleUtils.tr("heightprofile.loadingimage");container.appendChild(_this.imageEl);_this.portalEl=_this.externalWindow.document.createElement("div");_this.portalEl.id="profile";container.appendChild(_this.portalEl);_this.setState({initialized:true});_this.externalWindow.document.body.style.overflowX="hidden"}else{_this.externalWindow.document.body.innerHTML="Broken template. An element with id=heightprofilecontainer must exist."}});_defineProperty(_this,"refreshImage",function(){var measurement=_this.props.measurement;var layer={type:"vector",opacity:255,features:[{type:"Feature",geometry:{coordinates:measurement.coordinates,type:"LineString"},styleOptions:{strokeColor:[255,0,0,1],strokeWidth:4},properties:{segment_labels:measurement.segment_lengths.map(function(length){return MeasureUtils.formatMeasurement(length,false,measurement.lenUnit)})}}]};var mapCrs=_this.props.map.projection;var scale=Math.round(MapUtils.computeForZoom(_this.props.map.scales,_this.props.map.zoom));var exportParams=LayerUtils.collectPrintParams(_this.props.layers,_this.props.theme,scale,mapCrs,true,false);var highlightParams=VectorLayerUtils.createPrintHighlighParams([layer],mapCrs);var imageParams=_objectSpread({SERVICE:"WMS",VERSION:"1.3.0",REQUEST:"GetMap",TRANSPARENT:"true",TILED:"false",CRS:_this.props.map.projection,BBOX:_this.props.map.bbox.bounds,WIDTH:_this.props.map.size.width,HEIGHT:_this.props.map.size.height,HIGHLIGHT_GEOM:highlightParams.geoms.join(";"),HIGHLIGHT_SYMBOL:highlightParams.styles.join(";"),HIGHLIGHT_LABELSTRING:highlightParams.labels.join(";"),HIGHLIGHT_LABELCOLOR:highlightParams.labelFillColors.join(";"),HIGHLIGHT_LABELBUFFERCOLOR:highlightParams.labelOutlineColors.join(";"),HIGHLIGHT_LABELBUFFERSIZE:highlightParams.labelOutlineSizes.join(";"),HIGHLIGHT_LABELSIZE:highlightParams.labelSizes.join(";"),HIGHLIGHT_LABEL_DISTANCE:highlightParams.labelDist.join(";"),HIGHLIGHT_LABEL_ROTATION:highlightParams.labelRotations.join(";"),csrf_token:MiscUtils.getCsrfToken()},exportParams);var baseUrl=_this.props.theme.url.split("?")[0];var query=Object.entries(imageParams).map(function(_ref){var _ref2=_slicedToArray(_ref,2),k=_ref2[0],v=_ref2[1];return"".concat(encodeURIComponent(k),"=").concat(encodeURIComponent(v))}).join("&");var src=baseUrl+"?"+query;if(src===_this.state.imageUrl){return}_this.setState({imageUrl:src});var options={headers:{"content-type":"application/x-www-form-urlencoded"},responseType:"blob"};axios.post(baseUrl,query,options).then(function(response){var reader=new FileReader;reader.readAsDataURL(response.data);reader.onload=function(){_this.imageEl.innerHTML="<img src=\"".concat(reader.result,"\" style=\"width: 100%\" />")}})["catch"](function(){// Fall back to GET
_this.imageEl.innerHTML="<img src=\"".concat(src,"\" style=\"width: 100%\" />")})});_defineProperty(_this,"windowResized",function(){if(_this.chart){_this.chart.resize()}});_this.externalWindow=null;_this.chart=null;_this.portalEl=null;_this.imageEl=null;return _this}_inherits(HeightProfilePrintDialog_,_React$PureComponent);return _createClass(HeightProfilePrintDialog_,[{key:"componentDidMount",value:function componentDidMount(){var templatePath=MiscUtils.resolveAssetsPath(this.props.templatePath);this.externalWindow=window.open(templatePath,LocaleUtils.tr("heightprofile.title"),"toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes");this.externalWindow.addEventListener("load",this.setWindowContent,false);this.externalWindow.addEventListener("resize",this.windowResized,false);window.addEventListener("beforeunload",this.closePrintWindow)}},{key:"componentDidUpdate",value:function componentDidUpdate(prevProps,prevState){if(this.props.layers!==prevProps.layers||this.props.map.bbox!==prevProps.map.bbox||this.state.initialized&&!prevState.initialized){this.refreshImage()}}},{key:"componentWillUnmount",value:function componentWillUnmount(){this.closePrintWindow();window.removeEventListener("beforeunload",this.closePrintWindow)}},{key:"render",value:function render(){var _this2=this;if(!this.state.initialized){return null}return/*#__PURE__*/ReactDOM.createPortal(this.props.children(function(el){_this2.chart=el},false),this.portalEl)}}])}(React.PureComponent);_defineProperty(HeightProfilePrintDialog_,"propTypes",{children:PropTypes.func,layers:PropTypes.array,map:PropTypes.object,measurement:PropTypes.object,onClose:PropTypes.func,templatePath:PropTypes.string,theme:PropTypes.object});var HeightProfilePrintDialog=connect(function(state){return{layers:state.layers.flat,map:state.map,theme:state.theme.current}},{})(HeightProfilePrintDialog_);/**
 * Displays a height profile along a measured line.
 *
 * Triggered automatically when a line is measured via the `Measure` plugin.
 *
 * Requires `elevationServiceUrl` in `config.json` to point to a `qwc-elevation-service`,
 * or a custom elevation interface to be exposed in `window.QWC2ElevationInterface`, see
 * [ElevationInterface.js](https://github.com/qgis/qwc2/blob/master/utils/ElevationInterface.js).
 *
 * The print height profile functionality requires a template located by default at `assets/templates/heightprofileprint.html`
 * with containing a container element with `id=heightprofilecontainer`.
 */var HeightProfile=/*#__PURE__*/function(_React$Component){function HeightProfile(props){var _this3;_classCallCheck(this,HeightProfile);_this3=_callSuper(this,HeightProfile,[props]);_defineProperty(_this3,"state",{data:{},selectedDatasetIndex:0,reqId:null,drawnodes:true,printdialog:false});_defineProperty(_this3,"onClose",function(){_this3.setState({data:{},isloading:false});_this3.props.changeMeasurementState(_objectSpread(_objectSpread({},_this3.props.measurement),{},{pickPositionCallback:null}))});_defineProperty(_this3,"renderHeightProfile",function(saveRef,interactive){if(_this3.props.measurement.drawing){return null}if(_this3.state.data.error){return/*#__PURE__*/React.createElement("div",{className:"height-profile-error",role:"body"},LocaleUtils.tr("heightprofile.error")+": "+_this3.state.data.error)}var distanceStr=LocaleUtils.tr("heightprofile.distance");var heightStr=LocaleUtils.tr("heightprofile.height");var aslStr=LocaleUtils.tr("heightprofile.asl");var selectedDataset=_this3.state.data[_this3.state.selectedDatasetIndex];var data={labels:selectedDataset.x,datasets:[{data:selectedDataset.y,fill:true,backgroundColor:"rgba(255,0,0,0.5)",borderColor:"rgb(255,0,0)",borderWidth:2,pointRadius:0,order:1},{type:"bubble",data:selectedDataset.nodes,backgroundColor:"rgb(255, 255, 255)",borderColor:"rgb(255, 0, 0)",borderWidth:2,radius:5,hoverRadius:0,hoverBorderWidth:2,order:0,hidden:!_this3.state.drawnodes}]};// Approx 10 ticks
var stepSizeFact=Math.pow(10,Math.ceil(Math.log10(selectedDataset.totLength/10)));var stepSize=Math.round(selectedDataset.totLength/stepSizeFact)*stepSizeFact/10;var prec=_this3.props.heightProfilePrecision;var options={responsive:true,maintainAspectRatio:false,animation:{duration:0},plugins:{legend:{display:false},tooltip:{enabled:interactive,intersect:false,displayColors:false,bodyFont:{weight:"bold"},callbacks:{title:function title(ctx){return distanceStr+": "+MeasureUtils.formatMeasurement(ctx[0].parsed.x,false,"metric")},label:function label(ctx){return heightStr+": "+ctx.parsed.y.toFixed(prec)+" m "+aslStr}}}},scales:{x:{type:"linear",ticks:{stepSize:stepSize,font:{size:10},callback:function callback(value){return value}},title:{display:true,text:distanceStr+" [m]",padding:0},max:Math.ceil(selectedDataset.totLength)},y:{ticks:{font:{size:10},callback:function callback(value){return value.toFixed(prec)}},title:{display:true,text:heightStr+" [m "+aslStr+"]"},max:Math.ceil(selectedDataset.maxY)}},onHover:interactive?function(evt,activeEls,chart){var chartArea=chart.chartArea;var chartX=Math.min(Math.max(evt.x-chartArea.left),chartArea.width);_this3.updateMarker(chartX/chartArea.width*selectedDataset.totLength)}:undefined};var datasetSelector=null;if(_this3.state.data.length>1){datasetSelector=/*#__PURE__*/React.createElement("select",{className:"height-profile-dataset-select",onChange:function onChange(e){return _this3.setState({selectedDatasetIndex:parseInt(e.target.value,10)})},value:_this3.state.selectedDatasetIndex},_this3.state.data.map(function(dataset,idx){return/*#__PURE__*/React.createElement("option",{key:idx,value:idx},dataset.dataset?dataset.dataset:"<unnamed>")}))}return/*#__PURE__*/React.createElement("div",{className:"height-profile-chart-container",role:"body",style:{position:"relative"}},datasetSelector,/*#__PURE__*/React.createElement(Line,{data:data,options:options,ref:saveRef}))});_defineProperty(_this3,"resizeChart",function(){if(_this3.chart){_this3.chart.resize()}});_defineProperty(_this3,"updateMarker",function(x){var segmentLengths=_this3.props.measurement.segment_lengths;var coo=_this3.props.measurement.coordinates;if(isEmpty(segmentLengths)||isEmpty(coo)){return}var i=0;var runl=0;while(i<segmentLengths.length-1&&x>runl+segmentLengths[i]){runl+=segmentLengths[i++]}var lambda=(x-runl)/segmentLengths[i];var p=[coo[i][0]+lambda*(coo[i+1][0]-coo[i][0]),coo[i][1]+lambda*(coo[i+1][1]-coo[i][1])];_this3.props.addMarker("heightprofile",p,"",_this3.props.projection,1000001);// 1000001: one higher than the zIndex in MeasurementSupport...
});_defineProperty(_this3,"showTooltip",function(idx){if(!_this3.chart){return}var chartArea=_this3.chart.chartArea;_this3.chart.tooltip.setActiveElements([{datasetIndex:0,index:idx}],{x:(chartArea.left+chartArea.right)/2,y:(chartArea.top+chartArea.bottom)/2});_this3.chart.update()});_defineProperty(_this3,"clearMarkerAndTooltip",function(){_this3.props.removeMarker("heightprofile");if(_this3.chart){_this3.chart.tooltip.setActiveElements([],{x:0,y:0})}});_defineProperty(_this3,"pickPositionCallback",function(pos){if(!pos||isEmpty(_this3.state.data)){_this3.clearMarkerAndTooltip();return}var data=_this3.state.data[_this3.state.selectedDatasetIndex];// Find sample index
var segmentLengths=_this3.props.measurement.segment_lengths;var coo=_this3.props.measurement.coordinates;var x=0;for(var iSegment=0;iSegment<coo.length-1;++iSegment){if(_this3.pointOnSegment(pos,coo[iSegment],coo[iSegment+1])){var len=MeasureUtils.computeSegmentLengths([pos,coo[iSegment]],_this3.props.projection,_this3.props.measurement.geodesic)[0];x+=len;break}else{x+=segmentLengths[iSegment]}}var k=Math.min(1,x/data.totLength);var idx=Math.min(data.y.length-1,Math.floor(k*_this3.props.samples));_this3.showTooltip(idx)});_defineProperty(_this3,"pointOnSegment",function(q,p1,p2){var tol=1E-3;// Determine whether points lie on same line: cross-product (P2-P1) x (Q - P1) zero?
var cross=(p2[0]-p1[0])*(q[1]-p1[1])-(q[0]-p1[0])*(p2[1]-p1[1]);if(Math.abs(cross)>tol){return false}// Determine if coordinates lie within segment coordinates
if(Math.abs(p1[0]-p2[0])>tol){return p1[0]<=q[0]&&q[0]<=p2[0]||p2[0]<=q[0]&&q[0]<=p1[0]}else{return p1[1]<=q[1]&&q[1]<=p2[1]||p2[1]<=q[1]&&q[1]<=p1[1]}});_defineProperty(_this3,"exportProfile",function(){var data=_this3.state.data[_this3.state.selectedDatasetIndex];if(!data.x){return}var csv="";csv+="index"+"\t"+"distance"+"\t"+"elevation"+"\n";data.x.forEach(function(x,idx){var sample={x:x,y:data.y[idx]};var prec=_this3.props.heightProfilePrecision;var distance=Math.round(sample.x*Math.pow(10,prec))/Math.pow(10,prec);var height=Math.round(sample.y*Math.pow(10,prec))/Math.pow(10,prec);csv+=String(idx).replace("\"","\"\"")+"\t"+String(distance)+"\t"+String(height)+"\n"});FileSaver.saveAs(new Blob([csv],{type:"text/plain;charset=utf-8"}),"heightprofile.csv")});_this3.chart=null;_this3.profilePrintWindow=null;return _this3}_inherits(HeightProfile,_React$Component);return _createClass(HeightProfile,[{key:"componentDidUpdate",value:function componentDidUpdate(prevProps){if(this.props.measurement.coordinates!==prevProps.measurement.coordinates){if(this.props.measurement.drawing===false&&this.props.measurement.geomType==="LineString"&&!isEmpty(this.props.measurement.coordinates)){this.queryElevations(this.props.measurement.coordinates,this.props.measurement.segment_lengths,this.props.projection)}else if(!isEmpty(this.state.data)){this.setState({data:{}});this.props.changeMeasurementState(_objectSpread(_objectSpread({},this.props.measurement),{},{pickPositionCallback:null}))}}}},{key:"queryElevations",value:function queryElevations(coordinates,distances,projection){var _this4=this;var reqId=uuidv1();this.setState({reqId:reqId});var totLength=this.props.measurement.length;getElevationInterface().getProfile(coordinates,distances,projection,this.props.samples).then(function(response){// Request changed
if(_this4.state.reqId!==reqId){return}var elevationsList=response.list;if(!elevationsList){elevationsList=[{elevations:response,dataset:null}]}var data=elevationsList.map(function(entry,index){var elevations=entry.elevations;// Compute x-axis distances and get node points
var nodes=[];var cumDist=distances[0];var distIdx=0;var y=elevations;var x=y.map(function(value,idx,a){var dist=(idx/(a.length-1)*totLength).toFixed(0);if(dist>=cumDist){nodes.push({x:dist,y:y[idx]});cumDist+=distances[++distIdx]}return dist});// First and last node
nodes.unshift({x:x[0],y:y[0]});nodes.push({x:x[x.length-1],y:y[y.length-1]});return{dataset:entry.dataset,x:x,y:elevations,maxY:Math.max.apply(Math,_toConsumableArray(elevations)),totLength:totLength,nodes:nodes}});_this4.setState(function(prevState){return{reqId:null,data:data,selectedDatasetIndex:prevState.selectedDatasetIndex<=data.length?prevState.selectedDatasetIndex:0}});_this4.props.changeMeasurementState(_objectSpread(_objectSpread({},_this4.props.measurement),{},{pickPositionCallback:_this4.pickPositionCallback}))})["catch"](function(error){_this4.setState({reqId:null,data:error?{error:error}:{}})})}},{key:"render",value:function render(){var _this5=this;if(isEmpty(this.state.data)&&!this.state.isloading){return null}var extraControls=[{icon:"circle",active:this.state.drawnodes,callback:function callback(){return _this5.setState(function(state){return{drawnodes:!state.drawnodes}})},title:LocaleUtils.tr("heightprofile.drawnodes")},{icon:"export",callback:this.exportProfile,title:LocaleUtils.tr("heightprofile.export")},{icon:"print",active:this.state.printdialog,callback:function callback(){return _this5.setState(function(state){return{printdialog:!state.printdialog}})},title:LocaleUtils.tr("heightprofile.print")}];return[/*#__PURE__*/React.createElement(ResizeableWindow,{dockable:"bottom",extraControls:extraControls,icon:"line",initialHeight:this.props.height,initialWidth:600,initiallyDocked:true,key:"ProfileDialog",onClose:this.onClose,onExternalWindowResized:this.resizeChart,splitScreenWhenDocked:true,title:LocaleUtils.tr("heightprofile.title"),usePortal:false},this.state.isloading?/*#__PURE__*/React.createElement("div",{className:"height-profile-loading-indicator",role:"body"},/*#__PURE__*/React.createElement(Spinner,{className:"spinner"})," ",LocaleUtils.tr("heightprofile.loading")):this.renderHeightProfile(function(el){_this5.chart=el},true)),this.state.printdialog?/*#__PURE__*/React.createElement(HeightProfilePrintDialog,{key:"ProfilePrintDialog",measurement:this.props.measurement,onClose:function onClose(){return _this5.setState({printdialog:false})},templatePath:this.props.templatePath},this.renderHeightProfile):null]}}])}(React.Component);_defineProperty(HeightProfile,"propTypes",{addMarker:PropTypes.func,changeMeasurementState:PropTypes.func,/** The height of the height profile widget in pixels. */height:PropTypes.number,/** The precision of displayed and exported values (0: no decimals, 1: 1 decimal position, etc). */heightProfilePrecision:PropTypes.number,measurement:PropTypes.object,projection:PropTypes.string,removeMarker:PropTypes.func,/** The number of elevation samples to query. */samples:PropTypes.number,/** Template location for the height profile print functionality */templatePath:PropTypes.string});_defineProperty(HeightProfile,"defaultProps",{samples:500,heightProfilePrecision:0,height:150,templatePath:":/templates/heightprofileprint.html"});export default connect(function(state){return{measurement:state.measurement,projection:state.map.projection}},{addMarker:addMarker,changeMeasurementState:changeMeasurementState,removeMarker:removeMarker})(HeightProfile);