Package dk.gtz.graphedit.util

Class ShapeUtil

java.lang.Object

dk.gtz.graphedit.util.ShapeUtil

public class ShapeUtil
extends Object

General utilities for handling geometric shapes

Method Summary

Modifier and Type	Method	Description
static ViewModelPoint	rectangleIntersect(ViewModelVertexShape rect, double dx, double dy)	Will calculate the intersection point on a reactangle shape given a ray (dx,dy)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

rectangleIntersect

public static ViewModelPoint rectangleIntersect(ViewModelVertexShape rect,
 double dx,
 double dy)

Will calculate the intersection point on a reactangle shape given a ray (dx,dy)

Parameters:

rect - rectangle dimensions

dx - ray x direction

dy - ray y direction

Returns:

The intersection point on the rectangle. Note: (0,0) if the both dx and dy are zero

Throws:

RuntimeException - if the provided shape is not marked as a rectangle

See Also:

• inspired stackoverflow answer