BIM手记(3) mousemove

viewer.canvas.onmousemove=function(e,a){
  var theNode=viewer.impl.hitTest(e.x,e.y,false);//这个函数的作用就是获取鼠标位置的构建id(dbId)
  if(theNode)
  {
     //viewer.clearSelection();
     viewer.toggleSelect(theNode.dbId);
  }
};

var theMap=new Map();
for(var x=200;x<600;x=x+3)
{
   for(var y=200;y<600;y=y+3)
   {
      var theNode = viewer.impl.hitTest(x,y,true);
      if(theNode)
      {
         theMap.set(theNode.dbId,theNode.model);
      }
   }
}
theMap.forEach(function(sender,key,val){viewer.toggleSelect(key);});