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fix constness of intersection methods (bug #309)

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(transplanted from c98cd5e564f75be2edc7c5d18491058d025fa796
)
This commit is contained in:
Gael Guennebaud 2011-06-27 13:15:01 +02:00
parent d03bbcbcbc
commit a99ea69b32
2 changed files with 3 additions and 3 deletions
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2
Eigen/src/Geometry/Hyperplane.h
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@ -189,7 +189,7 @@ public:
*
* \note If \a other is approximately parallel to *this, this method will return any point on *this.
*/
VectorType intersection(const Hyperplane& other)
VectorType intersection(const Hyperplane& other) const
{
EIGEN_STATIC_ASSERT_VECTOR_SPECIFIC_SIZE(VectorType, 2)
Scalar det = coeffs().coeff(0) * other.coeffs().coeff(1) - coeffs().coeff(1) * other.coeffs().coeff(0);

4
Eigen/src/Geometry/ParametrizedLine.h
View File

@ -107,7 +107,7 @@ public:
{ return origin() + direction().dot(p-origin()) * direction(); }
template <int OtherOptions>
Scalar intersection(const Hyperplane<_Scalar, _AmbientDim, OtherOptions>& hyperplane);
Scalar intersection(const Hyperplane<_Scalar, _AmbientDim, OtherOptions>& hyperplane) const;
/** \returns \c *this with scalar type casted to \a NewScalarType
*
@ -159,7 +159,7 @@ inline ParametrizedLine<_Scalar, _AmbientDim,_Options>::ParametrizedLine(const H
*/
template <typename _Scalar, int _AmbientDim, int _Options>
template <int OtherOptions>
inline _Scalar ParametrizedLine<_Scalar, _AmbientDim,_Options>::intersection(const Hyperplane<_Scalar, _AmbientDim, OtherOptions>& hyperplane)
inline _Scalar ParametrizedLine<_Scalar, _AmbientDim,_Options>::intersection(const Hyperplane<_Scalar, _AmbientDim, OtherOptions>& hyperplane) const
{
return -(hyperplane.offset()+hyperplane.normal().dot(origin()))
/ hyperplane.normal().dot(direction());