three#Triangle JavaScript Examples

The following examples show how to use three#Triangle. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: roof_item.js    From architect3d with MIT License 6 votes vote down vote up 
roofContainsPoint(roof, forpoint)
	{
			var g = roof.geometry;
			var result = {distance: Number.MAX_VALUE, contains: false, point: null, closestPoint: null};
			var closestPoint = null;
			for (var i=0;i< g.faces.length;i++)
			{
					var f = g.faces[i];
					var plane = new Plane();
					var triangle = new Triangle(g.vertices[f.a], g.vertices[f.b], g.vertices[f.c]);
					var ipoint = new Vector3();
					var cpoint = new Vector3();
					var contains = false;
					var distance = 0.0;
					closestPoint = triangle.closestPointToPoint(forpoint, cpoint);
					triangle.getPlane(plane);
					plane.projectPoint(forpoint, ipoint);
					contains = triangle.containsPoint(ipoint);
					distance = plane.distanceToPoint(forpoint);
					if(distance < result.distance && contains)
					{
						result.distance = distance;
						result.contains = contains;
						result.point = ipoint;
						result.closestPoint = closestPoint.clone();
					}
			}
			//No good result so return the closest point of the last triangle in this roof mesh
			if(result.point == null)
			{
				result.closestPoint = closestPoint.clone();
			}

			return result;
	}