git.gag.com Git - debian/openrocket/blob - core/test/net/sf/openrocket/util/Rotation2DTest.java

   1 package net.sf.openrocket.util;
   2
   3 import static org.junit.Assert.assertEquals;
   4
   5 import org.junit.Test;
   6
   7 public class Rotation2DTest {
   8
   9         @Test
  10         public void rotationTest() {
  11
  12                 double rot60 = 0.5;
  13                 double rot30 = Math.sqrt(3)/2;
  14
  15                 Coordinate x = new Coordinate(1,1,0);
  16                 Coordinate y = new Coordinate(0,1,1);
  17
  18                 Rotation2D rot = new Rotation2D(Math.PI/3);  // 60 deg
  19
  20                 assertEquals(new Coordinate(rot60, 1, -rot30), rot.rotateY(x));
  21                 assertEquals(new Coordinate(rot60, 1, rot30), rot.invRotateY(x));
  22
  23                 assertEquals(new Coordinate(1, rot60, rot30), rot.rotateX(x));
  24                 assertEquals(new Coordinate(1, rot60, -rot30), rot.invRotateX(x));
  25
  26                 assertEquals(new Coordinate(-rot30, rot60, 1), rot.rotateZ(y));
  27                 assertEquals(new Coordinate(rot30, rot60, 1), rot.invRotateZ(y));
  28
  29         }
  30
  31 }