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107 lines
3.9 KiB
107 lines
3.9 KiB
9 years ago
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/** @file */
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/* The MIT License
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*
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* Copyright (c) 2008, Naotoshi Seo <sonots(at)sonots.com>
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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
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* furnished 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
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* all copies or substantial portions of the Software.
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*
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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
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef CV_POINTRECTTEST_INCLUDED
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#define CV_POINTRECTTEST_INCLUDED
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#include "cv.h"
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#include "cvaux.h"
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#include "cxcore.h"
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#include "cvrect32f.h"
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#include "cvcreateaffine.h"
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#include "cvrectpoints.h"
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// double
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// cvPointRect32fTest( const CvRect32f& rect, CvPoint2D32f pt,
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// int measure_dist = 0, CvPoint2D32f shear = cvPoint2D32f(0,0) );
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// CV_INLINE double
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// cvPointRectTest( const CvRect& rect, CvPoint2D32f pt, int measure_dist = 0 );
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/**
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* Point in rectangle test (Check whether point is in rectangle)
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*
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* @param rect Rectangle (x,y,width,height), and angle if want.
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* @param pt The point tested against the contour.
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* @param measure_dist 0 - return positive, negative, 0
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* if inside, outside, on the rectangle boundary
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* respectively.
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* 1 - return singned distance between the point
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* and the nearest rectangle edge.
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* @param shear shear deformation parameter (of affine transform)
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* @return result of test
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* @see cvPointPolygonTest, cvPointRectTest
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*/
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CVAPI(double)
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cvPointRect32fTest( const CvRect32f& rect, CvPoint2D32f pt,
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int measure_dist CV_DEFAULT(0),
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CvPoint2D32f shear CV_DEFAULT(cvPoint2D32f(0,0)) )
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{
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CvPoint2D32f points[4];
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CvMat *contour = cvCreateMat( 1, 4, CV_32FC2 );
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cvRect32fPoints( rect, points, shear );
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for( int i = 0; i < 4; i++ )
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{
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CV_MAT_ELEM( *contour, CvPoint2D32f, 0, i ) = points[i];
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} // cvPointSeqFromMat
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/* // CV_32FC2 is not possible
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CvPoint point;
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CvSeq *contour = cvCreateSeq( CV_32SC2, sizeof( CvSeq ), sizeof( CvPoint2D32f ), cvCreateMemStorage( 0 ) );
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for( int i = 0; i < 4; i++ )
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{
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point = cvPointFrom32f( points[i] );
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cvSeqPush( contour, &point );
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}*/
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double test = cvPointPolygonTest( contour, pt, measure_dist );
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cvReleaseMat( &contour );
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//cvClearMemStorage( contour->storage );
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return test;
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}
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/**
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* Point in rectangle test (Check whether point is in rectangle)
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*
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* @param rect Rectangle (x,y,width,height)
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* @param pt The point tested against the contour.
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* @param measure_dist 0 - return positive, negative, 0
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* if inside, outside, on the rectangle boundary
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* respectively.
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* 1 - return singned distance between the point
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* and the nearest rectangle edge.
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* @return result of test
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* @return double
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* @see cvPointPolygonTest, cvPointRect32fTest
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*/
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CV_INLINE double
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cvPointRectTest( const CvRect& rect, CvPoint2D32f pt,
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int measure_dist CV_DEFAULT(0) )
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{
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return cvPointRect32fTest( cvRect32fFromRect( rect ), pt, measure_dist );
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}
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#endif
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