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 *
   6  */
   7
   8 package eu.svjatoslav.sixth.e3d.renderer.raster.slicer;
   9
  10 import eu.svjatoslav.sixth.e3d.geometry.Point2D;
  11 import eu.svjatoslav.sixth.e3d.geometry.Point3D;
  12
  13 import java.util.Comparator;
  14
  15 public class BorderLine implements Comparator<BorderLine> {
  16
  17     public final int count;
  18     final PolygonCoordinate c1;
  19     final PolygonCoordinate c2;
  20
  21     public BorderLine(final PolygonCoordinate c1, final PolygonCoordinate c2,
  22                       final int count) {
  23         this.c1 = c1;
  24         this.c2 = c2;
  25         this.count = count;
  26     }
  27
  28     @Override
  29     public int compare(final BorderLine o1, final BorderLine o2) {
  30         return Double.compare(o1.getLength(), o2.getLength());
  31     }
  32
  33     public double getLength() {
  34         return c1.space.getDistanceTo(c2.space);
  35     }
  36
  37     public PolygonCoordinate getMiddlePoint() {
  38         return new PolygonCoordinate(new Point3D().computeMiddlePoint(c1.space,
  39                 c2.space), new Point2D().getMiddle(c1.texture,
  40                 c2.texture));
  41     }
  42 }