Copyright statements

src/main/org/openscience/cdk/tools/StereoTool.java

@@ -1,3 +1,26 @@
+/* Copyright (C) 2005-2009  The Jmol Development Team
+ * Copyright (C) 2010 Gilleain Torrance <gilleain.torrance@gmail.com>
+ *
+ * Contact: cdk-devel@lists.sourceforge.net
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the License, or (at your option) any later version.
+ * All we ask is that proper credit is given for our work, which includes
+ * - but is not limited to - adding the above copyright notice to the beginning
+ * of your source code files, and to any copyright notice that you may distribute
+ * with programs based on this work.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
 package org.openscience.cdk.tools;
 
 import javax.vecmath.Point3d;
@@ -6,8 +29,9 @@
 import org.openscience.cdk.interfaces.IAtom;
 
 /**
- * Methods 'borrowed' (stolen) from Jmol to determine or check the stereo
- * class of a set of atoms.
+ * Methods to determine or check the stereo class of a set of atoms.
+ * 
+ * Some of these methods were adapted from Jmol's smiles search package.
  * 
  * @author maclean
  * @cdk.module stereo

src/test/org/openscience/cdk/tools/StereoToolTest.java

@@ -1,3 +1,25 @@
+/* Copyright (C) 2010 Gilleain Torrance <gilleain.torrance@gmail.com>
+ *
+ * Contact: cdk-devel@lists.sourceforge.net
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the License, or (at your option) any later version.
+ * All we ask is that proper credit is given for our work, which includes
+ * - but is not limited to - adding the above copyright notice to the beginning
+ * of your source code files, and to any copyright notice that you may distribute
+ * with programs based on this work.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
 package org.openscience.cdk.tools;
 
 import javax.vecmath.Point3d;
@@ -67,6 +89,19 @@ public void getNormalFromThreePoints() {
         Assert.assertEquals(ZAXIS, normal);
     }
 
+    @Test
+    public void tetrahedralPlusAtomsAboveXYClockwiseTest() {
+        // above the XY plane
+        IAtom baseA = new Atom("C", new Point3d(0, 0, 1));
+        IAtom baseB = new Atom("C", new Point3d(1, 0, 1));
+        IAtom baseC = new Atom("C", new Point3d(1, 1, 1));
+
+        IAtom positiveApex = new Atom("C", new Point3d(0.5, 0.5, 2));
+        TetrahedralSign tetSign =
+            StereoTool.getHandedness(baseC, baseB, baseA, positiveApex);
+        Assert.assertEquals(TetrahedralSign.PLUS, tetSign);
+    }
+
     @Test
     public void tetrahedralPlusAtomsAboveXYTest() {
         // above the XY plane