src/main/java/eu/svjatoslav/sixth/e3d/geometry/Box.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.geometry;
   9
  10 /**
  11  * Same as: 3D rectangle, rectangular box, rectangular parallelopiped, cuboid,
  12  * rhumboid, hexahedron, rectangular prism.
  13  */
  14 public class Box implements Cloneable {
  15
  16     public final Point3D p1;
  17     public final Point3D p2;
  18
  19     public Box() {
  20         p1 = new Point3D();
  21         p2 = new Point3D();
  22     }
  23
  24     public Box(final Point3D p1, final Point3D p2) {
  25         this.p1 = p1;
  26         this.p2 = p2;
  27     }
  28
  29     public Box addBorder(final double border) {
  30
  31         if (p1.x < p2.x) {
  32             p1.translateX(-border);
  33             p2.translateX(border);
  34         } else {
  35             p1.translateX(border);
  36             p2.translateX(-border);
  37         }
  38
  39         if (p1.y < p2.y) {
  40             p1.translateY(-border);
  41             p2.translateY(border);
  42         } else {
  43             p1.translateY(border);
  44             p2.translateY(-border);
  45         }
  46
  47         if (p1.z < p2.z) {
  48             p1.translateZ(-border);
  49             p2.translateZ(border);
  50         } else {
  51             p1.translateZ(border);
  52             p2.translateZ(-border);
  53         }
  54
  55         return this;
  56     }
  57
  58     @Override
  59     public Box clone() {
  60         return new Box(p1.clone(), p2.clone());
  61     }
  62
  63     public double getDepth() {
  64         return Math.abs(p1.z - p2.z);
  65     }
  66
  67     public double getHeight() {
  68         return Math.abs(p1.y - p2.y);
  69     }
  70
  71     public double getWidth() {
  72         return Math.abs(p1.x - p2.x);
  73     }
  74
  75     public void setSizeCentered(final Point3D size) {
  76         p2.clone(size).scaleDown(2);
  77         p1.clone(p2).invert();
  78     }
  79
  80 }