1 files changed, 45 insertions, 0 deletions
diff --git a/hw5/src/rotationZ3d.cpp b/hw5/src/rotationZ3d.cpp
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+++ b/hw5/src/rotationZ3d.cpp
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+/******************************************************************/
+/* This file is part of the homework assignments for CSCI-427/527 */
+/* at The College of William & Mary and authored by Pieter Peers. */
+/* No part of this file, whether altered or in original form, can */
+/* be distributed or used outside the context of CSCI-427/527     */
+/* without consent of either the College of William & Mary or     */
+/* Pieter Peers.                                                  */
+/******************************************************************/
+#include "constants.h"
+#include "rotationZ3d.h"
+
+
+//////////////////
+// Constructors //
+//////////////////
+rotationZ3d::rotationZ3d(void)
+  : transformation3d()
+{
+  // Do Nothing
+}
+
+
+rotationZ3d::rotationZ3d(float angle)
+  : transformation3d()
+{
+  // HW5: implement a rotation of 'angle' degrees around the Z-axis.
+  // Modifies: _transformation, _inverseTransformation, _translation
+  // Returns: nothing.
+  float s = sin(angle * PI / 180.0f);
+  float c = cos(angle * PI / 180.0f);
+
+  _transformation(0,0) = c;
+  _transformation(0,1) = -s;
+  _transformation(1,0) = s;
+  _transformation(1,1) = c;
+
+  _inverseTransformation = transpose(_transformation);
+}
+
+
+rotationZ3d::rotationZ3d(const rotationZ3d& r)
+  : transformation3d(r)
+{
+  // Do Nothing
+}