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corrected error on intersection line-circle

This commit is contained in:
Nico Pietroni 2007-05-08 13:49:08 +00:00
parent 43958eea39
commit de99d5c2d9
1 changed files with 13 additions and 8 deletions
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21
vcg/space/intersection2.h
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@ -24,6 +24,9 @@
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$Log: not supported by cvs2svn $
Revision 1.6 2007/05/08 12:11:58 pietroni
added circle-line intersection
****************************************************************************/
@ -214,17 +217,19 @@ template<class SCALAR_TYPE>
//intersection between a circle and a line
template<class SCALAR_TYPE>
inline bool CircleLineIntersection(const vcg::Line2<SCALAR_TYPE> & line,
const vcg::Point2<ScalarType> &center,
const ScalarType &radius,
vcg::Point2<ScalarType> &p0,
vcg::Point2<ScalarType> &p1)
const vcg::Point2<SCALAR_TYPE> &center,
const SCALAR_TYPE &radius,
vcg::Point2<SCALAR_TYPE> &p0,
vcg::Point2<SCALAR_TYPE> &p1)
{
typedef typename SCALAR_TYPE ScalarType;
///translate with origin on the center
ScalarType x1,x2,y1,y2;
x1=p.X()-center.X();
y1=p.Y()-center.Y();
x2=x1+line.Direction.X();
y2=y1+line.Direction.Y();
x1=line.Origin().X()-center.X();
y1=line.Origin().Y()-center.Y();
x2=x1+line.Direction().X();
y2=y1+line.Direction().Y();
ScalarType dx,dy,dr,D,delta,sign;
dx=x2-x1;