1 package org.newdawn.slick.geom;
2
3 import java.io.Serializable;
4
5 /**
6 * A collection of triangles
7 *
8 * @author kevin
9 */
10 public interface Triangulator extends Serializable {
11
12 /**
13 * Get a count of the number of triangles produced
14 *
15 * @return The number of triangles produced
16 */
17 public int getTriangleCount();
18
19 /**
20 * Get a point on a specified generated triangle
21 *
22 * @param tri The index of the triangle to interegate
23 * @param i The index of the point within the triangle to retrieve
24 * (0 - 2)
25 * @return The x,y coordinate pair for the point
26 */
27 public float[] getTrianglePoint(int tri, int i);
28
29 /**
30 * Add a point that forms part of the outer polygon
31 *
32 * @param x The x coordinate of the point
33 * @param y The y coordiante of the point
34 */
35 public void addPolyPoint(float x, float y);
36
37 /**
38 * Start a hole in the polygon
39 */
40 public void startHole();
41
42 /**
43 * Run the triangulation
44 *
45 * @return True if successful
46 */
47 public boolean triangulate();
48 }