106 lines
3.6 KiB
JavaScript
106 lines
3.6 KiB
JavaScript
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var CesiumToSuperMap = {
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convertPoint : function(Cesium,SuperMap,point){
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if(!Cesium || !SuperMap || !point){
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return undefined;
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}
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var lonlatPoint = Cesium.Cartographic.fromCartesian(point);
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var x = Cesium.Math.toDegrees(lonlatPoint.longitude);
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var y = Cesium.Math.toDegrees(lonlatPoint.latitude);
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if(x && y){
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return new SuperMap.Geometry.Point(x,y);
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}
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return undefined;
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},
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convertPolyline : function(Cesium,SuperMap,polyline){
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if(!Cesium || !SuperMap || !polyline){
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throw undefined;
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}
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var points = polyline.positions;
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if(points && points instanceof Array && points.length >= 2){
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var arr = [];
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for(var i = 0,j = points.length;i < j;i++){
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var point = this.convertPoint(Cesium,SuperMap,points[i]);
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if(point){
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arr.push(point);
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}
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}
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return new SuperMap.Geometry.LineString(arr);
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}
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return undefined;
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},
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convertPolygon : function(Cesium,SuperMap,polygon){
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if(!Cesium || !SuperMap || !polygon){
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throw undefined;
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}
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var points = polygon.positions;
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if(points && points instanceof Array && points.length >= 3){
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var arr = [];
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for(var i = 0,j = points.length;i < j;i++){
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var point = this.convertPoint(Cesium,SuperMap,points[i]);
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if(point){
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arr.push(point);
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}
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}
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var linearRing = new SuperMap.Geometry.LinearRing(arr);
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return new SuperMap.Geometry.Polygon(linearRing);
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}
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return undefined;
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}
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};
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var SuperMapToCesium = {
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geometryToEntity : function(Cesium,SuperMap,geometry){
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var className = geometry.CLASS_NAME;
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if(className == 'SuperMap.Geometry.MultiPolygon'){
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return this.multipolygonToEntities(Cesium,SuperMap,geometry);
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}
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else if(className == 'SuperMap.Geometry.Polygon'){
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return [this.polygonToEntity(Cesium,SuperMap,geometry)];
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}
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return undefined;
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},
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polygonToEntity : function(Cesium,SuperMap,geometry){
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var hierarchy = {};
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for(var i = 0,j = geometry.components.length;i < j;i++){
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if(i == 0){
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hierarchy.positions = this.GeometrytoDegreesArray(Cesium,SuperMap,geometry.components[i]);
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}
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else{
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if(!hierarchy.holes){
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hierarchy.holes = [];
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}
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hierarchy.holes.push({
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positions : this.GeometrytoDegreesArray(Cesium,SuperMap,geometry.components[i])
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});
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}
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}
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return new Cesium.Entity({
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polygon : {
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hierarchy : hierarchy,
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material : Cesium.Color.BLUE.withAlpha(0.5)
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},
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depthTestEnabled : false
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});
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},
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multipolygonToEntities : function(Cesium,SuperMap,geometry){
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var components = geometry.components;
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var resultEntities = [];
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var entity;
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for(var item in components){
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entity = this.polygonToEntity(Cesium,SuperMap,components[item]);
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resultEntities.push(entity);
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}
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return resultEntities;
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},
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GeometrytoDegreesArray : function(Cesium,SuperMap,geometry){
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var vertices = geometry.getVertices();
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var degreesArr = [];
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for(var o in vertices){
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degreesArr.push(vertices[o].x,vertices[o].y);
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}
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return Cesium.Cartesian3.fromDegreesArray(degreesArr);
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}
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};
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