| /*M/////////////////////////////////////////////////////////////////////////////////////// |
| // |
| // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. |
| // |
| // By downloading, copying, installing or using the software you agree to this license. |
| // If you do not agree to this license, do not download, install, |
| // copy or use the software. |
| // |
| // |
| // Intel License Agreement |
| // For Open Source Computer Vision Library |
| // |
| // Copyright (C) 2000, Intel Corporation, all rights reserved. |
| // Third party copyrights are property of their respective owners. |
| // |
| // Redistribution and use in source and binary forms, with or without modification, |
| // are permitted provided that the following conditions are met: |
| // |
| // * Redistribution's of source code must retain the above copyright notice, |
| // this list of conditions and the following disclaimer. |
| // |
| // * Redistribution's in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // * The name of Intel Corporation may not be used to endorse or promote products |
| // derived from this software without specific prior written permission. |
| // |
| // This software is provided by the copyright holders and contributors "as is" and |
| // any express or implied warranties, including, but not limited to, the implied |
| // warranties of merchantability and fitness for a particular purpose are disclaimed. |
| // In no event shall the Intel Corporation or contributors be liable for any direct, |
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| // (including, but not limited to, procurement of substitute goods or services; |
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| // or tort (including negligence or otherwise) arising in any way out of |
| // the use of this software, even if advised of the possibility of such damage. |
| // |
| //M*/ |
| |
| #ifndef _CV_GEOM_H_ |
| #define _CV_GEOM_H_ |
| |
| /* Finds distance between two points */ |
| CV_INLINE float icvDistanceL2_32f( CvPoint2D32f pt1, CvPoint2D32f pt2 ) |
| { |
| float dx = pt2.x - pt1.x; |
| float dy = pt2.y - pt1.y; |
| |
| return cvSqrt( dx*dx + dy*dy ); |
| } |
| |
| |
| int icvIntersectLines( double x1, double dx1, double y1, double dy1, |
| double x2, double dx2, double y2, double dy2, |
| double* t2 ); |
| |
| |
| void icvCreateCenterNormalLine( CvSubdiv2DEdge edge, double* a, double* b, double* c ); |
| |
| void icvIntersectLines3( double* a0, double* b0, double* c0, |
| double* a1, double* b1, double* c1, |
| CvPoint2D32f* point ); |
| |
| |
| #define _CV_BINTREE_LIST() \ |
| struct _CvTrianAttr* prev_v; /* pointer to the parent element on the previous level of the tree */ \ |
| struct _CvTrianAttr* next_v1; /* pointer to the child element on the next level of the tree */ \ |
| struct _CvTrianAttr* next_v2; /* pointer to the child element on the next level of the tree */ |
| |
| typedef struct _CvTrianAttr |
| { |
| CvPoint pt; /* Coordinates x and y of the vertex which don't lie on the base line LMIAT */ |
| char sign; /* sign of the triangle */ |
| double area; /* area of the triangle */ |
| double r1; /* The ratio of the height of triangle to the base of the triangle */ |
| double r2; /* The ratio of the projection of the left side of the triangle on the base to the base */ |
| _CV_BINTREE_LIST() /* structure double list */ |
| } |
| _CvTrianAttr; |
| |
| |
| /* curvature: 0 - 1-curvature, 1 - k-cosine curvature. */ |
| CvStatus icvApproximateChainTC89( CvChain* chain, |
| int header_size, |
| CvMemStorage* storage, |
| CvSeq** contour, |
| int method ); |
| |
| #endif /*_IPCVGEOM_H_*/ |
| |
| /* End of file. */ |
