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
  10 import java.util.Comparator;
  11
  12 public class BorderLine implements Comparator<BorderLine> {
  13
  14     public final int count;
  15     final PolygonCoordinate c1;
  16     final PolygonCoordinate c2;
  17
  18     public BorderLine(final PolygonCoordinate c1, final PolygonCoordinate c2,
  19                       final int count) {
  20         this.c1 = c1;
  21         this.c2 = c2;
  22         this.count = count;
  23     }
  24
  25     @Override
  26     public int compare(final BorderLine o1, final BorderLine o2) {
  27         return Double.compare(o1.getLength(), o2.getLength());
  28     }
  29
  30     public double getLength() {
  31         return c1.space.getDistanceTo(c2.space);
  32     }
  33
  34     public PolygonCoordinate getMiddlePoint() {
  35         return new PolygonCoordinate(new Point3D().computeMiddlePoint(c1.space,
  36                 c2.space), new Point2D().setToMiddle(c1.texture,
  37                 c2.texture));
  38     }
  39 }