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/* Computational Geometry for Circles */
#ifndef LIB_C_GEOMETRY_CIRCLE_H
#define LIB_C_GEOMETRY_CIRCLE_H
#ifdef __cplusplus
extern "C" {
#endif
int getCircleCircleIntersections(/* Circle 0 Radius */
double r0,
/* Circle 0 Center */
double px0, double py0,
/* Circle 1 Radius */
double r1,
/* Circle 1 Center */
double px1, double py1,
/* Intersection Point */
double* px3, double* py3,
/* Intersection Point */
double* px4, double* py4);
int getCircleTangentPoints(/* Circle Radius and Center */
double cr, double cx, double cy,
/* Point to determine tangency */
double px, double py,
/* Tangent Point 0 */
double* tx0, double* ty0,
/* Tangent Point 1 */
double* tx1, double* ty1);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIB_C_GEOMETRY_CIRCLE_H */
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