qwc2/utils/VectorLayerUtils.js

QGIS Web Client

function _typeof(o){"@babel/helpers - typeof";return _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(o){return typeof o}:function(o){return o&&"function"==typeof Symbol&&o.constructor===Symbol&&o!==Symbol.prototype?"symbol":typeof o},_typeof(o)}function ownKeys(e,r){var t=Object.keys(e);if(Object.getOwnPropertySymbols){var o=Object.getOwnPropertySymbols(e);r&&(o=o.filter(function(r){return Object.getOwnPropertyDescriptor(e,r).enumerable})),t.push.apply(t,o)}return t}function _objectSpread(e){for(var r=1;r<arguments.length;r++){var t=null!=arguments[r]?arguments[r]:{};r%2?ownKeys(Object(t),!0).forEach(function(r){_defineProperty(e,r,t[r])}):Object.getOwnPropertyDescriptors?Object.defineProperties(e,Object.getOwnPropertyDescriptors(t)):ownKeys(Object(t)).forEach(function(r){Object.defineProperty(e,r,Object.getOwnPropertyDescriptor(t,r))})}return e}function _defineProperty(e,r,t){return(r=_toPropertyKey(r))in e?Object.defineProperty(e,r,{value:t,enumerable:!0,configurable:!0,writable:!0}):e[r]=t,e}function _toPropertyKey(t){var i=_toPrimitive(t,"string");return"symbol"==_typeof(i)?i:i+""}function _toPrimitive(t,r){if("object"!=_typeof(t)||!t)return t;var e=t[Symbol.toPrimitive];if(void 0!==e){var i=e.call(t,r||"default");if("object"!=_typeof(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===r?String:Number)(t)}function _createForOfIteratorHelper(r,e){var t="undefined"!=typeof Symbol&&r[Symbol.iterator]||r["@@iterator"];if(!t){if(Array.isArray(r)||(t=_unsupportedIterableToArray(r))||e&&r&&"number"==typeof r.length){t&&(r=t);var _n=0,F=function F(){};return{s:F,n:function n(){return _n>=r.length?{done:!0}:{done:!1,value:r[_n++]}},e:function e(r){throw r},f:F}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function s(){t=t.call(r)},n:function n(){var r=t.next();return a=r.done,r},e:function e(r){u=!0,o=r},f:function f(){try{a||null==t["return"]||t["return"]()}finally{if(u)throw o}}}}function _toConsumableArray(r){return _arrayWithoutHoles(r)||_iterableToArray(r)||_unsupportedIterableToArray(r)||_nonIterableSpread()}function _nonIterableSpread(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}function _unsupportedIterableToArray(r,a){if(r){if("string"==typeof r)return _arrayLikeToArray(r,a);var t={}.toString.call(r).slice(8,-1);return"Object"===t&&r.constructor&&(t=r.constructor.name),"Map"===t||"Set"===t?Array.from(r):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?_arrayLikeToArray(r,a):void 0}}function _iterableToArray(r){if("undefined"!=typeof Symbol&&null!=r[Symbol.iterator]||null!=r["@@iterator"])return Array.from(r)}function _arrayWithoutHoles(r){if(Array.isArray(r))return _arrayLikeToArray(r)}function _arrayLikeToArray(r,a){(null==a||a>r.length)&&(a=r.length);for(var e=0,n=Array(a);e<a;e++)n[e]=r[e];return n}/**
 * 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 geojsonBbox from"geojson-bounding-box";import isEmpty from"lodash.isempty";import{getDefaultImageStyle}from"ol/format/KML";import ol from"openlayers";import simplepolygon from"simplepolygon";import svgpath from"svgpath";import{v1 as uuidv1}from"uuid";import ConfigUtils from"../utils/ConfigUtils";import CoordinatesUtils from"../utils/CoordinatesUtils";import{END_MARKERS,computeFeatureStyle}from"../utils/FeatureStyles";var VectorLayerUtils={createPrintHighlighParams:function createPrintHighlighParams(layers,printCrs,printScale){var dpi=arguments.length>3&&arguments[3]!==undefined?arguments[3]:96;var scaleFactor=arguments.length>4&&arguments[4]!==undefined?arguments[4]:1;var qgisServerVersion=ConfigUtils.getConfigProp("qgisServerVersion",null,3);var params={geoms:[],styles:[],labels:[],labelFillColors:[],labelOutlineColors:[],labelOutlineSizes:[],labelRotations:[],labelSizes:[],labelDist:[]};var ensureHex=null;if(qgisServerVersion>=3){ensureHex=function ensureHex(rgb){return!Array.isArray(rgb)?rgb:"#"+[255-(rgb.length>3?rgb[3]:1)*255].concat(_toConsumableArray(rgb.slice(0,3))).map(function(v){return Math.round(v).toString(16).padStart(2,"0")}).join("")}}else{ensureHex=function ensureHex(rgb){return!Array.isArray(rgb)?rgb:"#"+(16777216+(rgb[2]|rgb[1]<<8|rgb[0]<<16)).toString(16).slice(1)}}var _iterator=_createForOfIteratorHelper(layers.slice(0).reverse()),_step;try{for(_iterator.s();!(_step=_iterator.n()).done;){var layer=_step.value;if(layer.type!=="vector"||(layer.features||[]).length===0||layer.visibility===false||layer.skipPrint===true){continue}var features=layer.features.map(function(feature){var _feature$geometry;if((_feature$geometry=feature.geometry)!==null&&_feature$geometry!==void 0&&_feature$geometry.coordinates){feature=_objectSpread(_objectSpread({},feature),{},{geometry:_objectSpread(_objectSpread({},feature.geometry),{},{coordinates:VectorLayerUtils.removeDuplicateNodes(feature.geometry.coordinates)})})}return VectorLayerUtils.simplifyFeature(feature)}).flat();var _iterator2=_createForOfIteratorHelper(features),_step2;try{for(_iterator2.s();!(_step2=_iterator2.n()).done;){var feature=_step2.value;if(!VectorLayerUtils.validateGeometry(feature.geometry)){continue}var styleOptions=computeFeatureStyle(layer,feature);var properties=feature.properties||{};var geometry=VectorLayerUtils.reprojectGeometry(feature.geometry,feature.crs||printCrs,printCrs);if(feature.geometry.type==="LineString"){// Generate arrow heads
if(styleOptions.headmarker){VectorLayerUtils.generateMarkerGeometry(params,styleOptions.headmarker,false,feature,layer,dpi,printScale,printCrs,scaleFactor)}if(styleOptions.tailmarker){VectorLayerUtils.generateMarkerGeometry(params,styleOptions.tailmarker,true,feature,layer,dpi,printScale,printCrs,scaleFactor)}}if(feature.geometry.type==="LineString"&&!isEmpty(properties.segment_labels)){// Split line into single segments and label them individually
var coords=geometry.coordinates;for(var i=0;i<coords.length-1;++i){var segment={type:"LineString",coordinates:[coords[i],coords[i+1]]};params.styles.push(VectorLayerUtils.createSld(segment.type,feature.styleName,styleOptions,layer.opacity,dpi,scaleFactor));params.labels.push(properties.segment_labels[i]||" ");params.geoms.push(VectorLayerUtils.geoJSONGeomToWkt(segment));params.labelFillColors.push(ensureHex(styleOptions.textFill));params.labelOutlineColors.push(ensureHex(styleOptions.textStroke));params.labelOutlineSizes.push(scaleFactor);params.labelSizes.push(Math.round(10*scaleFactor));params.labelDist.push("-5");params.labelRotations.push("0")}}else{params.styles.push(VectorLayerUtils.createSld(geometry.type,feature.styleName,styleOptions,layer.opacity,dpi,scaleFactor));params.labels.push(properties.label||" ");if(feature.styleName==="text"){// Make point a tiny square, so that QGIS server centers the text inside the polygon when labelling
var x=geometry.coordinates[0];var y=geometry.coordinates[1];geometry={type:"Polygon",coordinates:[[[x-0.01,y-0.01],[x+0.01,y-0.01],[x+0.01,y+0.01],[x-0.01,y+0.01],[x-0.01,y-0.01]]]};params.geoms.push(VectorLayerUtils.geoJSONGeomToWkt(geometry));params.labelFillColors.push(ensureHex(styleOptions.fillColor));params.labelOutlineColors.push(ensureHex(styleOptions.strokeColor));params.labelOutlineSizes.push(scaleFactor*styleOptions.strokeWidth*0.5);params.labelSizes.push(Math.round(10*styleOptions.strokeWidth*scaleFactor));params.labelDist.push("5");params.labelRotations.push(((properties.rotation||0)/Math.PI*180).toFixed(0))}else{params.geoms.push(VectorLayerUtils.geoJSONGeomToWkt(geometry));params.labelFillColors.push(ensureHex(styleOptions.textFill));params.labelOutlineColors.push(ensureHex(styleOptions.textStroke));params.labelOutlineSizes.push(scaleFactor);params.labelSizes.push(Math.round(10*scaleFactor));params.labelDist.push("-5");params.labelRotations.push("0")}}}}catch(err){_iterator2.e(err)}finally{_iterator2.f()}}}catch(err){_iterator.e(err)}finally{_iterator.f()}return params},removeDuplicateNodes:function removeDuplicateNodes(coordinates){if(Array.isArray(coordinates[0][0])){return coordinates.map(VectorLayerUtils.removeDuplicateNodes)}else if(Array.isArray(coordinates[0])){return coordinates.filter(function(item,pos,arr){return pos===0||item[0]!==arr[pos-1][0]||item[1]!==arr[pos-1][1]})}else{return coordinates}},simplifyFeature:function simplifyFeature(feature){if(!feature.geometry){return feature}else if(feature.geometry.type==="MultiPolygon"){return feature.geometry.coordinates.map(function(part){return VectorLayerUtils.simplifyFeature(_objectSpread(_objectSpread({},feature),{},{geometry:{type:"Polygon",coordinates:part}}))}).flat()}else if(feature.geometry.type==="Polygon"){return simplepolygon(feature).features.map(function(feat,idx,features){if(feat.properties.parent>=0){features[feat.properties.parent].geometry.coordinates.push(feat.geometry.coordinates[0]);return null}return feat}).filter(function(x){return x}).map(function(feat){return _objectSpread(_objectSpread({},feature),{},{geometry:feat.geometry})})}else{return feature}},validateGeometry:function validateGeometry(geometry){if(!geometry){return false}if(geometry.type==="GeometryCollection"){return geometry.geometries.every(VectorLayerUtils.validateGeometry)}if(geometry.type==="Point"){return!isEmpty(geometry.coordinates)}var minLength=geometry.type.endsWith("LineString")?2:3;var _isDegenerate=function isDegenerate(coordinates){if(Array.isArray(coordinates[0][0])){return coordinates.map(_isDegenerate).find(function(entry){return entry===false})}else{return coordinates.length<minLength}};return!_isDegenerate(geometry.coordinates)},createSld:function createSld(geometrytype,styleName,styleOptions,layerOpacity){var dpi=arguments.length>4&&arguments[4]!==undefined?arguments[4]:96;var scaleFactor=arguments.length>5&&arguments[5]!==undefined?arguments[5]:1;var opts={};var dpiScale=dpi/96*scaleFactor;// Special cases
if(styleName==="text"){// Make geometry transparent
opts={strokeColor:[0,0,0,0],fillColor:[0,0,0,0]}}else if(styleName==="marker"){opts={strokeColor:[0,0,255,1],strokeWidth:1*dpiScale,fillColor:[255,255,255,1],circleRadius:2*dpiScale}}else{// Default style
opts=styleOptions}var ensureHex=function ensureHex(rgb){return!Array.isArray(rgb)?rgb:"#"+(16777216+(rgb[2]|rgb[1]<<8|rgb[0]<<16)).toString(16).slice(1)};var opacity=function opacity(rgb){if(Array.isArray(rgb)&&rgb.length>3){return rgb[3]*layerOpacity/255}return 1*layerOpacity/255};var stroke="<se:Stroke>"+"<se:SvgParameter name=\"stroke\">"+ensureHex(opts.strokeColor)+"</se:SvgParameter>"+"<se:SvgParameter name=\"stroke-opacity\">"+opacity(opts.strokeColor)+"</se:SvgParameter>"+"<se:SvgParameter name=\"stroke-width\">"+opts.strokeWidth*dpiScale+"</se:SvgParameter>"+"<se:SvgParameter name=\"stroke-linejoin\">round</se:SvgParameter>"+(!isEmpty(opts.strokeDash)?"<CssParameter name=\"stroke-dasharray\">"+opts.strokeDash.join(" ")+"</CssParameter>":"")+"</se:Stroke>";var fill="<se:Fill>"+"<se:SvgParameter name=\"fill\">"+ensureHex(opts.fillColor)+"</se:SvgParameter>"+"<se:SvgParameter name=\"fill-opacity\">"+opacity(opts.fillColor)+"</se:SvgParameter>"+"</se:Fill>";var rule=null;if(geometrytype.endsWith("Point")){rule="<se:PointSymbolizer>"+"<se:Graphic>"+"<se:Mark>"+"<se:WellKnownName>circle</se:WellKnownName>"+"<se:Stroke>"+"<se:SvgParameter name=\"stroke\">"+ensureHex(opts.strokeColor)+"</se:SvgParameter>"+"<se:SvgParameter name=\"stroke-opacity\">"+opacity(opts.strokeColor)+"</se:SvgParameter>"+"<se:SvgParameter name=\"stroke-width\">"+opts.strokeWidth*dpiScale+"</se:SvgParameter>"+"</se:Stroke>"+fill+"</se:Mark>"+"<se:Size>"+2*opts.circleRadius*dpiScale+"</se:Size>"+"</se:Graphic>"+"</se:PointSymbolizer>"}else if(geometrytype.endsWith("LineString")){rule="<se:LineSymbolizer>"+stroke+"</se:LineSymbolizer>"}else if(geometrytype.endsWith("Polygon")){rule="<se:PolygonSymbolizer>"+stroke+fill+"</se:PolygonSymbolizer>"}if(rule){return"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"+"<StyledLayerDescriptor xmlns=\"http://www.opengis.net/sld\" xmlns:ogc=\"http://www.opengis.net/ogc\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" version=\"1.1.0\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xsi:schemaLocation=\"http://www.opengis.net/sld http://schemas.opengis.net/sld/1.1.0/StyledLayerDescriptor.xsd\" xmlns:se=\"http://www.opengis.net/se\">"+"<UserStyle>"+"<se:FeatureTypeStyle>"+"<se:Rule>"+rule+"</se:Rule>"+"</se:FeatureTypeStyle>"+"</UserStyle>"+"</StyledLayerDescriptor>"}return null},generateMarkerGeometry:function generateMarkerGeometry(params,markername,tail,feature,layer,dpi,mapScale,printCrs,scaleFactor){if(!END_MARKERS[markername]){return}var marker=END_MARKERS[markername];// Read the SVG and generate a matching WKT geometry for the marker
var path="";var width=0;var height=0;try{var parser=new DOMParser;var svgSrc=atob(marker.src.slice(26));var svgDoc=parser.parseFromString(svgSrc,"text/xml");width=parseInt(svgDoc.getElementsByTagName("svg")[0].getAttribute("width"),10);height=parseInt(svgDoc.getElementsByTagName("svg")[0].getAttribute("height"),10);path=svgDoc.getElementsByTagName("path")[0].getAttribute("d")}catch(e){/* eslint-disable-next-line */console.warn("Could not parse path for marker "+markername);return}//                        [        Same as in FeatureStyles.js         ] [   pixel to map units  ]
var markerScaleFactor=0.125*(1+feature.styleOptions.strokeWidth)/dpi*0.0254*mapScale*scaleFactor;var origin=feature.geometry.coordinates[tail?feature.geometry.coordinates.length-1:0];var p2=feature.geometry.coordinates[tail?feature.geometry.coordinates.length-2:1];var coordinates=[];var angle=0.5*Math.PI+Math.atan2(origin[0]-p2[0],origin[1]-p2[1]);var alpha=marker.baserotation/180*Math.PI+angle;var cosa=Math.cos(alpha);var sina=Math.sin(alpha);svgpath(path).iterate(function(segment,index,x,y){// Skip move instructions
if(["m","M"].includes(segment[0])){return}var dx=(x-marker.anchor[0]*width)*markerScaleFactor;var dy=(y-marker.anchor[1]*height)*markerScaleFactor;var rx=cosa*dx+sina*dy;var ry=-sina*dx+cosa*dy;coordinates.push([origin[0]+rx,origin[1]+ry])});// Closing coordinate
coordinates.push(coordinates[0]);var geometry={type:"Polygon",coordinates:[coordinates]};var styleOptions={strokeWidth:1,strokeDash:[],strokeColor:feature.styleOptions.strokeColor,fillColor:feature.styleOptions.strokeColor};params.styles.push(VectorLayerUtils.createSld(geometry.type,"default",styleOptions,layer.opacity,dpi,scaleFactor));params.geoms.push(VectorLayerUtils.geoJSONGeomToWkt(geometry));params.labels.push(" ");params.labelFillColors.push("#FFF");params.labelOutlineColors.push("#FFF");params.labelOutlineSizes.push(scaleFactor);params.labelSizes.push(Math.round(10*scaleFactor));params.labelDist.push("0")},reprojectGeometry:function reprojectGeometry(geometry,srccrs,dstcrs){if(srccrs===dstcrs||!srccrs||!dstcrs){return geometry}if(geometry.type==="Point"){var wgscoo=CoordinatesUtils.reproject(geometry.coordinates,srccrs,dstcrs);return{type:geometry.type,coordinates:wgscoo}}else if(geometry.type==="LineString"||geometry.type==="MultiPoint"){return{type:geometry.type,coordinates:geometry.coordinates.map(function(tuple){return CoordinatesUtils.reproject(tuple,srccrs,dstcrs)})}}else if(geometry.type==="Polygon"||geometry.type==="MultiLineString"){return{type:geometry.type,coordinates:geometry.coordinates.map(function(ring){return ring.map(function(tuple){return CoordinatesUtils.reproject(tuple,srccrs,dstcrs)})})}}else if(geometry.type==="MultiPolygon"){return{type:geometry.type,coordinates:geometry.coordinates.map(function(part){return part.map(function(ring){return ring.map(function(tuple){return CoordinatesUtils.reproject(tuple,srccrs,dstcrs)})})})}}else{return geometry}},reprojectFeature:function reprojectFeature(feature,srccrs,dstcrs){if(srccrs===dstcrs||!srccrs||!dstcrs){return feature}if(feature.features){return _objectSpread(_objectSpread({},feature),{},{features:feature.features.map(function(f){return VectorLayerUtils.reprojectFeature(srccrs,dstcrs)})})}else{return _objectSpread(_objectSpread({},feature),{},{geometry:VectorLayerUtils.reprojectGeometry(feature.geometry,srccrs,dstcrs)})}},wktToGeoJSON:function wktToGeoJSON(wkt,srccrs,dstcrs){var id=arguments.length>3&&arguments[3]!==undefined?arguments[3]:uuidv1();wkt=wkt.replace(/Point(\w+)/i,"Point $1").replace(/LineString(\w+)/i,"LineString $1").replace(/Polygon(\w+)/i,"Polygon $1").replace(/MultiSurface(\w*)/i,"GeometryCollection $1");try{var feature=new ol.format.WKT().readFeature(wkt,{dataProjection:srccrs,featureProjection:dstcrs});var featureObj=new ol.format.GeoJSON().writeFeatureObject(feature);featureObj.id=id;return featureObj}catch(e){/* eslint-disable-next-line */console.warn("Failed to parse geometry: "+wkt);return null}},geoJSONGeomToWkt:function geoJSONGeomToWkt(gj){var precision=arguments.length>1&&arguments[1]!==undefined?arguments[1]:undefined;if(precision===undefined){precision=ConfigUtils.getConfigProp("wmsWktPrecision",null,4)}if(gj.type==="Feature"){gj=gj.geometry}var wrapParens=function wrapParens(s){return"("+s+")"};var pairWKT=function pairWKT(c){return c.map(function(x){return x.toFixed(precision)}).join(" ")};var ringWKT=function ringWKT(r){return r.map(pairWKT).join(", ")};var ringsWKT=function ringsWKT(r){return r.map(ringWKT).map(wrapParens).join(", ")};var multiRingsWKT=function multiRingsWKT(r){return r.map(ringsWKT).map(wrapParens).join(", ")};switch(gj.type){case"Point":return"POINT ("+pairWKT(gj.coordinates)+")";case"LineString":return"LINESTRING ("+ringWKT(gj.coordinates)+")";case"Polygon":return"POLYGON ("+ringsWKT(gj.coordinates)+")";case"MultiPoint":return"MULTIPOINT ("+ringWKT(gj.coordinates)+")";case"MultiPolygon":return"MULTIPOLYGON ("+multiRingsWKT(gj.coordinates)+")";case"MultiLineString":return"MULTILINESTRING ("+ringsWKT(gj.coordinates)+")";case"GeometryCollection":return"GEOMETRYCOLLECTION ("+gj.geometries.map(function(x){return VectorLayerUtils.geoJSONGeomToWkt(x,precision)}).join(", ")+")";default:throw new Error("Invalid geometry object")}},kmlToGeoJSON:function kmlToGeoJSON(kml){var kmlFormat=new ol.format.KML({defaultStyle:[new ol.style.Style]});var geojsonFormat=new ol.format.GeoJSON;var features=[];var _iterator3=_createForOfIteratorHelper(kmlFormat.readFeatures(kml)),_step3;try{for(_iterator3.s();!(_step3=_iterator3.n()).done;){var _feature$geometry2;var olFeature=_step3.value;var style=olFeature.getStyleFunction()(olFeature);style=style[0]||style;var styleOptions={strokeColor:style.getStroke()?style.getStroke().getColor():[0,0,0,1],strokeWidth:style.getStroke()?style.getStroke().getWidth():1,strokeDash:style.getStroke()?style.getStroke().getLineDash():[],fillColor:style.getFill()?style.getFill().getColor():[255,255,255,1],textFill:style.getText()&&style.getText().getFill()?style.getText().getFill().getColor():[0,0,0,1],textStroke:style.getText()&&style.getText().getStroke()?style.getText().getStroke().getColor():[255,255,255,1]};if(style.getImage()&&style.getImage()!==getDefaultImageStyle()&&style.getImage().getSrc()){// FIXME: Uses private members of ol.style.Icon, style.getImage().getAnchor() returns null because style.getImage.getSize() is null because the the image is not yet loaded
var anchor=style.getImage().anchor_||[0.5,0.5];var anchorOrigin=(style.getImage().anchorOrigin_||"").split("-");if(anchorOrigin.includes("right")){anchor[0]=1-anchor[0]}if(anchorOrigin.includes("bottom")){anchor[1]=1-anchor[1]}styleOptions.iconSrc=style.getImage().getSrc();styleOptions.iconAnchor=anchor}var feature=geojsonFormat.writeFeatureObject(olFeature);Object.assign(feature,{styleName:styleOptions.iconSrc&&((_feature$geometry2=feature.geometry)===null||_feature$geometry2===void 0?void 0:_feature$geometry2.type)==="Point"?"marker":"default",styleOptions:styleOptions,id:uuidv1(),crs:"EPSG:4326",properties:{}});var properties=olFeature.getProperties();var excludedProperties=["visibility",olFeature.getGeometryName()];for(var _i=0,_Object$keys=Object.keys(properties);_i<_Object$keys.length;_i++){var key=_Object$keys[_i];if(!excludedProperties.includes(key)){feature.properties[key]=properties[key]}}if(properties.name&&feature.styleName==="marker"){feature.properties.label=properties.name}features.push(feature)}}catch(err){_iterator3.e(err)}finally{_iterator3.f()}return features},convert3dto2d:function convert3dto2d(entry){if(!Array.isArray(entry)){return entry}else if(entry.length>=3&&!Array.isArray(entry[0])){return[entry[0],entry[1]]}else if(Array.isArray(entry[0])){return entry.map(VectorLayerUtils.convert3dto2d)}return entry},computeFeaturesBBox:function computeFeaturesBBox(features){var featureCrs=new Set;features.forEach(function(feature){if(feature.crs){featureCrs.add(feature.crs)}});var bboxCrs=featureCrs.size===1?_toConsumableArray(featureCrs.keys())[0]:"EPSG:4326";var bounds=geojsonBbox({type:"FeatureCollection",features:features.filter(function(feature){return feature.geometry}).map(function(feature){return _objectSpread(_objectSpread({},feature),{},{geometry:feature.crs?VectorLayerUtils.reprojectGeometry(feature.geometry,feature.crs,bboxCrs):feature.geometry})})});// Discard z component
if(bounds.length===6){bounds=[bounds[0],bounds[1],bounds[3],bounds[4]]}return{crs:bboxCrs,bounds:bounds}},computeFeatureBBox:function computeFeatureBBox(feature){var bounds=geojsonBbox(feature);// Discard z component
if(bounds.length===6){bounds=[bounds[0],bounds[1],bounds[3],bounds[4]]}return bounds},getFeatureCenter:function getFeatureCenter(feature){var geojson=new ol.format.GeoJSON().readFeature(feature);var geometry=geojson.getGeometry();var type=geometry.getType();var center=null;switch(type){case"Polygon":center=geometry.getInteriorPoint().getCoordinates();break;case"MultiPolygon":center=geometry.getInteriorPoints().getClosestPoint(ol.extent.getCenter(geometry.getExtent()));break;case"Point":center=geometry.getCoordinates();break;case"MultiPoint":center=geometry.getClosestPoint(ol.extent.getCenter(geometry.getExtent()));break;case"LineString":center=geometry.getCoordinateAt(0.5);break;case"MultiLineString":center=geometry.getClosestPoint(ol.extent.getCenter(geometry.getExtent()));break;case"Circle":center=geometry.getCenter();break;default:break}return center}};export default VectorLayerUtils;