101 lines
4.5 KiB
C++
101 lines
4.5 KiB
C++
#ifndef BEST_FIT_OBB_H
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#define BEST_FIT_OBB_H
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/*!
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**
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** Copyright (c) 2007 by John W. Ratcliff mailto:jratcliff@infiniplex.net
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**
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** Portions of this source has been released with the PhysXViewer application, as well as
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** Rocket, CreateDynamics, ODF, and as a number of sample code snippets.
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**
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** If you find this code useful or you are feeling particularily generous I would
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** ask that you please go to http://www.amillionpixels.us and make a donation
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** to Troy DeMolay.
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**
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** DeMolay is a youth group for young men between the ages of 12 and 21.
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** It teaches strong moral principles, as well as leadership skills and
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** public speaking. The donations page uses the 'pay for pixels' paradigm
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** where, in this case, a pixel is only a single penny. Donations can be
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** made for as small as $4 or as high as a $100 block. Each person who donates
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** will get a link to their own site as well as acknowledgement on the
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** donations blog located here http://www.amillionpixels.blogspot.com/
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**
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** If you wish to contact me you can use the following methods:
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**
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** Skype Phone: 636-486-4040 (let it ring a long time while it goes through switches)
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** Skype ID: jratcliff63367
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** Yahoo: jratcliff63367
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** AOL: jratcliff1961
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** email: jratcliff@infiniplex.net
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** Personal website: http://jratcliffscarab.blogspot.com
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** Coding Website: http://codesuppository.blogspot.com
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** FundRaising Blog: http://amillionpixels.blogspot.com
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** Fundraising site: http://www.amillionpixels.us
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** New Temple Site: http://newtemple.blogspot.com
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**
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**
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** The MIT license:
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**
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** Permission is hereby granted, free of charge, to any person obtaining a copy
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** of this software and associated documentation files (the "Software"), to deal
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** in the Software without restriction, including without limitation the rights
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** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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** copies of the Software, and to permit persons to whom the Software is furnished
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** to do so, subject to the following conditions:
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**
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** The above copyright notice and this permission notice shall be included in all
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** copies or substantial portions of the Software.
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** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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** WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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** CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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// compute the 'best fit' oriented bounding box of an input point cloud by doing an exhaustive search.
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// it spins the point cloud around searching for the minimal volume. It keeps narrowing down until
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// it fails to find a better fit. The only dependency is on 'double_math'
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//
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// The inputs are:
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//
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// vcount : number of input vertices in the point cloud.
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// points : a pointer to the first vertex.
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// pstride : The stride between each point measured in bytes.
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//
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// The outputs are:
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//
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// sides : The length of the sides of the OBB as X, Y, Z distance.
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// matrix : A pointer to a 4x4 matrix. This will contain the 3x3 rotation and the translation component.
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// pos : The center of the OBB
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// quat : The orientation of the OBB expressed as quaternion in the form of X,Y,Z,W
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//
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//
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// Please email bug fixes or improvements to John W. Ratcliff at mailto:jratcliff@infiniplex.net
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//
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// If you find this source code useful donate a couple of bucks to my kid's fund raising website at
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// www.amillionpixels.us
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//
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// More snippets at: www.codesuppository.com
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//
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namespace ConvexDecomposition
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{
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void computeBestFitOBB(unsigned int vcount,const double *points,unsigned int pstride,double *sides,double *matrix);
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void computeBestFitOBB(unsigned int vcount,const double *points,unsigned int pstride,double *sides,double *pos,double *quat);
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void computeBestFitABB(unsigned int vcount,const double *points,unsigned int pstride,double *sides,double *pos);
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void computeBestFitOBB(unsigned int vcount,const float *points,unsigned int pstride,float *sides,float *pos,float *quat); // the float version of the routine.
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void computeBestFitABB(unsigned int vcount,const float *points,unsigned int pstride,float *sides,float *pos);
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};
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#endif
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