X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=test%2Fnet%2Fsf%2Fopenrocket%2Futil%2FRotation2DTest.java;fp=test%2Fnet%2Fsf%2Fopenrocket%2Futil%2FRotation2DTest.java;h=6cc6d91f2052df8614a8e3a0ecdf4a5de069718b;hb=dfc10c016c5f1bb4b7714dff414562f2f32e2866;hp=0000000000000000000000000000000000000000;hpb=84086eec3f20c7af0c4817548de4e8296c7674f8;p=debian%2Fopenrocket

diff --git a/test/net/sf/openrocket/util/Rotation2DTest.java b/test/net/sf/openrocket/util/Rotation2DTest.java
new file mode 100644
index 00000000..6cc6d91f
--- /dev/null
+++ b/test/net/sf/openrocket/util/Rotation2DTest.java
@@ -0,0 +1,31 @@
+package net.sf.openrocket.util;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class Rotation2DTest {
+	
+	@Test
+	public void rotationTest() {
+		
+		double rot60 = 0.5;
+		double rot30 = Math.sqrt(3)/2;
+		
+		Coordinate x = new Coordinate(1,1,0);
+		Coordinate y = new Coordinate(0,1,1);
+		
+		Rotation2D rot = new Rotation2D(Math.PI/3);  // 60 deg
+		
+		assertEquals(new Coordinate(rot60, 1, -rot30), rot.rotateY(x));
+		assertEquals(new Coordinate(rot60, 1, rot30), rot.invRotateY(x));
+		
+		assertEquals(new Coordinate(1, rot60, rot30), rot.rotateX(x));
+		assertEquals(new Coordinate(1, rot60, -rot30), rot.invRotateX(x));
+		
+		assertEquals(new Coordinate(-rot30, rot60, 1), rot.rotateZ(y));
+		assertEquals(new Coordinate(rot30, rot60, 1), rot.invRotateZ(y));
+		
+	}
+
+}