5, cesium click surface highlight event

Click on the highlighted event cesium surface

The main function: for example, you load the json, geojson or topojson data. After loading it, is divided into a number of faces, now click on a surface to be achieved, the surface change color; then click on another face, another face surface restoration highlighting before. (There do not know, please add the relevant study group: 854 184 700)

On the following codes:

 1     function hightlightLine() {
 2         var temp = new Array();
 3         function linehHghtlight(nameId) {
 4             var exists = temp.indexOf(nameId);
 5             if (exists <= -1) {
 6                 temp.push(nameId);
 7             } else {
 8                 temp.splice(exists, 1);  //删除对应的nameID
 9             }
10         }
11         viewer.screenSpaceEventHandler.setInputAction(function onLeftClick(movement) {
12             var pickedFeature = viewer.scene.pick(movement.position);
13 
14             //判断之前是否有高亮面存在
15             if (highlightFace) {
16                 highlightFace.material = highlightFace.material0;
17             }
18             pickedFeature.id.polygon.material0 = pickedFeature.id.polygon.material;
19             pickedFeature.id.polygon.material = Cesium.Color.WHITE;
20             highlightFace = pickedFeature.id.polygon;
21             showDivPositionOld =pickedFeature.id.properties;
 22 is  
23 is              IF ( typeof ! (pickedFeature) = "undefined")   // mouse is point to the surface 
24                  var ID = pickedFeature.id;
 25              linehHghtlight (ID);
 26 is          }, Cesium.ScreenSpaceEventType.LEFT_CLICK );
 27      }

There are doubts, please add the relevant study group: 854 184 700