createMapModel(geojson) { features.forEach(feature=>{const{ coordinates,type} = feature.geometrycoordinates.forEach(coordinate=>{if(type==="MultiPolygon") coordinate.forEach(item=>dealWithCoord(item))if(type==="Polygon")dealWithCoord(coordinate) }) })functiondealWithCoord(lonlatArr) {constpiec...
POLYGON((1 1,5 1,5 5,1 5,1 1),(2 2,2 3,3 3,3 2,2 2)) MULTIPOINT(3.5 5.6, 4.8 10.5) MULTILINESTRING((3 4,10 50,20 25),(-5 -8,-10 -8,-15 -4)) MULTIPOLYGON(((1 1,5 1,5 5,1 5,1 1),(2 2,2 3,3 3,3 2,2 2)),((6 3,9 2,9 4,6 3))) GEOMETR...
{ case 'Point': return splitLineWithPoint(line, truncatedSplitter); case 'MultiPoint': return splitLineWithPoints(line, truncatedSplitter); case 'LineString': case 'MultiLineString': case 'Polygon': case 'MultiPolygon': return splitLineWithPoints(line, lineIntersect(line, truncatedSplitter)); } ...
data.features.forEach(function (area) { // "Polygon":国家area有一个封闭轮廓 //"MultiPolygon":国家area有多个封闭轮廓 if (area.geometry.type === 'Polygon') { // 把"Polygon"和"MultiPolygon"的geometry.coordinates数据结构处理为一致 area.geometry.coordinates = [area.geometry.coordinates] } // 解...
multiPolygon.forEach((polygon)=>{ // 画轮廓线 constline=drawBoundary(polygon); // 画多边形 constprovinceColor=['北京市','上海市'].includes(elem.properties.name)?'yellow':'blue'; constmesh=drawExtrudeMesh(polygon,provinceColor); province.add(line); ...
loader.load(modelUrl + 'json/china.json', function (data2) { // 访问所有子行政区(省份)边界坐标数据:data.features data2.features.forEach(function (area) { // "Polygon":省份area有一个封闭轮廓 //"MultiPolygon":省份area有多个封闭轮廓 ...
multiPolygon.forEach( polygon => { const lineMaterial = new THREE.LineBasicMaterial( { color: 0XF19553 } ); //0x3BFA9E const positions = []; const linGeometry = new THREE.BufferGeometry(); for (let i = 0; i < polygon.length; i ++) { ...
case 'Polygon': case 'MultiPolygon': return splitLineWithPoints(line, lineIntersect(line, truncatedSplitter)); } } 代码中truncate方法是用于保留指定位数的小数,即splitter被限制了精度,所以pline和splitter交换位置后实际计算中的坐标点就发生了变化,导致了不一致的问题。
source Number 源坐标系,考虑到实际转换时,数据量可能较大,故传入CRS的SRID,而非CRS实例,以减少CRS实例数量,进而降低内存成本 Returns: module:geom~MultiPolygon - 坐标转换后的几何对象。 Example ... let multiPolygon = new hmap.geom.MultiPolygon(polygons); multiPolygon.transform(3857, 4326);...
Support for GeoJSON"Polygon"and"MultiPolygon"types (experimental) Resources Demo + Animation Companion Tutorial Based somewhat on the F. Martinez (2008) algorithm:Paper,Code Installing npm install polybooljs 或者,对于浏览器,请查看dist/单个文件构建的目录。 当包含在页面上时,它将公开全局PolyBool。