From db072ad4dc181eca5a1458656b130beb43f475bf Mon Sep 17 00:00:00 2001
From: 53hornet <53hornet@gmail.com>
Date: Sat, 2 Feb 2019 23:33:15 -0500
Subject: Init.

---
 hw5/src/rotationZ3d.cpp | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 hw5/src/rotationZ3d.cpp

(limited to 'hw5/src/rotationZ3d.cpp')

diff --git a/hw5/src/rotationZ3d.cpp b/hw5/src/rotationZ3d.cpp
new file mode 100644
index 0000000..466b999
--- /dev/null
+++ b/hw5/src/rotationZ3d.cpp
@@ -0,0 +1,45 @@
+/******************************************************************/
+/* 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
+}
-- 
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