diff options
author | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2011-06-26 00:41:16 +0000 |
---|---|---|
committer | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2011-06-26 00:41:16 +0000 |
commit | 698569f8428ca088f764d704034a1330517b98c0 (patch) | |
tree | bf45be6946ebbbee9cce5a5bcf838f4c952d87e6 /chalk/core/kis_vec.cc | |
parent | 2785103a6bd4de55bd26d79e34d0fdd4b329a73a (diff) | |
download | koffice-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.cc | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/chalk/core/kis_vec.cc b/chalk/core/kis_vec.cc new file mode 100644 index 00000000..fa54e1f9 --- /dev/null +++ b/chalk/core/kis_vec.cc @@ -0,0 +1,67 @@ +/* + * 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; +} + |