Circle2d.h

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// Circle2d.h:
// -----------
//

#ifndef __IPSDKMATH_CIRCLE2D_H__
#define __IPSDKMATH_CIRCLE2D_H__

#include <IPSDKMath/IPSDKMathExports.h>
#include <IPSDKMath/Constants.h>
#include <IPSDKUtil/Tools/ForceInline.h>

namespace ipsdk {
namespace math {


IPSDKMATH_API bool
circleFromPoints(const ipReal64 x0, const ipReal64 y0,
                 const ipReal64 x1, const ipReal64 y1,
                 const ipReal64 x2, const ipReal64 y2,
                 ipReal64& xc, ipReal64& yc, ipReal64& radius);

IPSDK_FORCEINLINE ipReal64
circlePerimeter(const ipReal64 radius)
{
    return 2 * M_PI * radius; 
}

IPSDK_FORCEINLINE ipReal64
circleArea(const ipReal64 radius)
{
    return M_PI * radius * radius; 
}


} // end of namespace math
} // end of namespace ipsdk

#endif // __IPSDKMATH_CIRCLE2D_H__