Class McGeToolClass

计算闭合的区域面积

Example

Copy

Copy

判断点是否在一个闭合的多边形区域。

Example

     let aryPoint:Array<THREE.Vector3> = [];
     aryPoint.push(new THREE.Vector3(0,0,0));
     aryPoint.push(new THREE.Vector3(0,100,0));
     aryPoint.push(new THREE.Vector3(100,100,0));
     aryPoint.push(new THREE.Vector3(100,0,0));
     let pt:THREE.Vector3 = new THREE.Vector3(150,150);
     if(McGeTool.pointInPolyline(pt,aryPoint) ){
       console.log("in");
     }
Copy