src/main/java/eu/svjatoslav/sixth/e3d/renderer/raster/slicer/BorderLine.java

   1 /*
   2  * Sixth 3D engine. Author: Svjatoslav Agejenko.
   3  * This project is released under Creative Commons Zero (CC0) license.
   4  */
   5 package eu.svjatoslav.sixth.e3d.renderer.raster.slicer;
   6
   7 import eu.svjatoslav.sixth.e3d.geometry.Point2D;
   8 import eu.svjatoslav.sixth.e3d.geometry.Point3D;
   9 import eu.svjatoslav.sixth.e3d.math.Vertex;
  10
  11 import java.util.Comparator;
  12
  13 public class BorderLine implements Comparator<BorderLine> {
  14
  15     public final int count;
  16     final Vertex c1;
  17     final Vertex c2;
  18
  19     public BorderLine(final Vertex c1, final Vertex c2,
  20                       final int count) {
  21         this.c1 = c1;
  22         this.c2 = c2;
  23         this.count = count;
  24     }
  25
  26     @Override
  27     public int compare(final BorderLine o1, final BorderLine o2) {
  28         return Double.compare(o1.getLength(), o2.getLength());
  29     }
  30
  31     public double getLength() {
  32         return c1.coordinate.getDistanceTo(c2.coordinate);
  33     }
  34
  35     public Vertex getMiddlePoint() {
  36         return new Vertex(
  37                 new Point3D().computeMiddlePoint(c1.coordinate, c2.coordinate),
  38                 new Point2D().setToMiddle(c1.textureCoordinate, c2.textureCoordinate));
  39     }
  40 }