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11 // For Open Source Computer Vision Library
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45 /* Finds distance between two points */
46 CV_INLINE float icvDistanceL2_32f( CvPoint2D32f pt1, CvPoint2D32f pt2 )
48 float dx = pt2.x - pt1.x;
49 float dy = pt2.y - pt1.y;
51 return cvSqrt( dx*dx + dy*dy );
55 int icvIntersectLines( double x1, double dx1, double y1, double dy1,
56 double x2, double dx2, double y2, double dy2,
60 void icvCreateCenterNormalLine( CvSubdiv2DEdge edge, double* a, double* b, double* c );
62 void icvIntersectLines3( double* a0, double* b0, double* c0,
63 double* a1, double* b1, double* c1,
64 CvPoint2D32f* point );
67 #define _CV_BINTREE_LIST() \
68 struct _CvTrianAttr* prev_v; /* pointer to the parent element on the previous level of the tree */ \
69 struct _CvTrianAttr* next_v1; /* pointer to the child element on the next level of the tree */ \
70 struct _CvTrianAttr* next_v2; /* pointer to the child element on the next level of the tree */
72 typedef struct _CvTrianAttr
74 CvPoint pt; /* Coordinates x and y of the vertex which don't lie on the base line LMIAT */
75 char sign; /* sign of the triangle */
76 double area; /* area of the triangle */
77 double r1; /* The ratio of the height of triangle to the base of the triangle */
78 double r2; /* The ratio of the projection of the left side of the triangle on the base to the base */
79 _CV_BINTREE_LIST() /* structure double list */
84 /* curvature: 0 - 1-curvature, 1 - k-cosine curvature. */
85 CvStatus icvApproximateChainTC89( CvChain* chain,
87 CvMemStorage* storage,
91 #endif /*_IPCVGEOM_H_*/