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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2011-06-26 00:41:16 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2011-06-26 00:41:16 +0000
commit698569f8428ca088f764d704034a1330517b98c0 (patch)
treebf45be6946ebbbee9cce5a5bcf838f4c952d87e6 /chalk/core/kis_vec.cc
parent2785103a6bd4de55bd26d79e34d0fdd4b329a73a (diff)
downloadkoffice-698569f8428ca088f764d704034a1330517b98c0.tar.gz
koffice-698569f8428ca088f764d704034a1330517b98c0.zip
Finish rebranding of Krita as Chalk
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/koffice@1238363 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'chalk/core/kis_vec.cc')
-rw-r--r--chalk/core/kis_vec.cc67
1 files changed, 67 insertions, 0 deletions
diff --git a/chalk/core/kis_vec.cc b/chalk/core/kis_vec.cc
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+/*
+ * kis_vec.cc - part of KImageShop
+ *
+ * Copyright (c) 1999 Matthias Elter <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "kis_vec.h"
+
+KisVector2D& KisVector2D::normalize()
+{
+ double length, ilength;
+
+ length = m_x*m_x + m_y*m_y;
+ length = sqrt (length);
+
+ if (length > epsilon)
+ {
+ ilength = 1/length;
+ m_x *= ilength;
+ m_y *= ilength;
+ }
+ return *this;
+}
+
+KisVector3D& KisVector3D::normalize()
+{
+ double length, ilength;
+
+ length = m_x*m_x + m_y*m_y + m_z*m_z;
+ length = sqrt (length);
+
+ if (length > epsilon)
+ {
+ ilength = 1/length;
+ m_x *= ilength;
+ m_y *= ilength;
+ m_z *= ilength;
+ }
+ return *this;
+}
+
+KisVector3D& KisVector3D::crossProduct(const KisVector3D &v)
+{
+ double x,y,z;
+
+ x = m_y*v.m_z - m_z*v.m_y;
+ y = m_z*v.m_x - m_x*v.m_z;
+ z = m_x*v.m_y - m_y*v.m_x;
+ m_x=x; m_y=y; m_z=z;
+
+ return *this;
+}
+