cgv::math::qem< T > Class Template Reference
dimension independent implementation of quadric error metrics More...
#include <qem.h>
Inheritance diagram for cgv::math::qem< T >:
Public Member Functions | |
| qem (int d=-1) | |
| standard constructor initializes qem based on dimension | |
| qem (const vec< T > &p, const vec< T > &n) | |
| construct from point and normal | |
| qem (const vec< T > &n, T d) | |
| construct from normal and distance to origin | |
| void | set (const vec< T > &n, T d) |
| set from normal and distance to origin | |
| unsigned | dim () const |
| number of elements | |
| qem< T > & | operator= (const qem< T > &v) |
| assignment of a vector v | |
| const T & | scalar_part () const |
| return the scalar part of the qem | |
| vec< T > | vector_part () const |
| return the vector part of the qem | |
| mat< T > | matrix_part () const |
| return matrix part | |
| T | evaluate (const vec< T > &p) const |
| evaluate the quadric error metric at given location | |
| vec< T > | minarg (const vec< T > &p_ref, T relative_epsilon, T max_distance=-1, T epsilon=1e-10) const |
| template<typename S > | |
| qem< T > & | operator+= (const qem< S > &v) |
| in place qem addition | |
| template<typename S > | |
| qem< T > & | operator-= (const qem< S > &v) |
| in place qem subtraction | |
| template<typename S > | |
| const qem< T > | operator+ (const qem< S > &v) const |
| qem addition | |
| template<typename S > | |
| qem< T > | operator- (const qem< S > &v) const |
| qem subtraction | |
| qem< T > | operator- (void) const |
| negates the qem | |
| qem< T > | operator* (const T &s) const |
| multiplication with scalar s | |
| qem< T > | operator/ (const T &s) const |
| divides vector by scalar s | |
| void | resize (unsigned d) |
| resize the vector | |
| template<typename S > | |
| bool | operator== (const qem< S > &v) const |
| test for equality | |
| template<typename S > | |
| bool | operator!= (const qem< S > &v) const |
| test for inequality | |
| unsigned | size () const |
| number of elements | |
| void | set (const T &c0, const T &c1) |
| set entries of a 2d vector | |
| void | set (const T &c0, const T &c1, const T &c2) |
| set entries of a 3d vector | |
| void | set (const T &c0, const T &c1, const T &c2, const T &c3) |
| set entries of a 4d vector | |
| void | set_extern_data (unsigned dim, T *data) |
| set data pointer to an external data array | |
| operator T* () | |
| cast into non const array | |
| operator const T * () const | |
| cast into const array | |
| T & | operator() (unsigned i) |
| element accessor | |
| const T & | operator() (unsigned i) const |
| const element accessor | |
| T & | first () |
| element accessor for the first element | |
| const T & | first () const |
| const element accessor for the first element | |
| T & | last () |
| element accessor for the flast element | |
| const T & | last () const |
| const element accessor for the last element | |
| T & | x () |
| element accessor for the first element | |
| const T & | x () const |
| const element accessor for the first element | |
| T & | y () |
| element accessor for the second element | |
| const T & | y () const |
| const element accessor for the second element | |
| T & | z () |
| element accessor for the third element | |
| const T & | z () const |
| const element accessor for the third element | |
| T & | w () |
| element accessor for the fourth element | |
| const T & | w () const |
| const element accessor for the fourth element | |
| vec< T > & | operator+= (const T &s) |
| in place addition of a scalar s | |
| template<typename S > | |
| vec< T > & | operator+= (const vec< S > &v) |
| in place vector addition | |
| vec< T > & | operator-= (const T &s) |
| in place subtraction by scalar s | |
| template<typename S > | |
| vec< T > & | operator-= (const vec< S > &v) |
| in place vector subtraction | |
| vec< T > & | operator*= (const T &s) |
| in place multiplication with s | |
| template<typename S > | |
| vec< T > & | operator*= (const vec< S > &v) |
| in place componentwise vector multiplication | |
| vec< T > & | operator/= (const T &s) |
| in place division by scalar s | |
| template<typename S > | |
| vec< T > & | operator/= (const vec< S > &v) |
| in place componentwise vector division | |
| template<typename S > | |
| const vec< T > | operator+ (const vec< S > &v) const |
| vector addition | |
| const vec< T > | operator+ (const T &s) const |
| componentwise addition of scalar | |
| const vec< T > | operator- (const T &s) const |
| componentwise subtraction of scalar | |
| template<typename S > | |
| vec< T > | operator- (const vec< S > &v) const |
| vector subtraction | |
| template<typename S > | |
| const vec< T > | operator* (const vec< S > &v) const |
| componentwise vector multiplication | |
| template<typename S > | |
| const vec< T > | operator/ (const vec< S > &v) const |
| componentwise vector division | |
| void | fill (const T &v) |
| fill elements of vector with scalar v | |
| void | zeros () |
| fill the vector with zeros | |
| void | zeros (unsigned n) |
| resize the vector to size n and fills the vector with zeros | |
| void | ones () |
| fill the vector with ones | |
| void | ones (unsigned n) |
| resize the vector to size n and fills thevector with ones | |
| template<typename S > | |
| bool | operator== (const vec< S > &v) const |
| test for equality | |
| template<typename S > | |
| bool | operator!= (const vec< S > &v) const |
| test for inequality | |
| T | length () const |
| length of the vector L2-Norm | |
| void | abs () |
| componentwise absolute values | |
| void | ceil () |
| ceil componentwise | |
| void | floor () |
| floor componentwise | |
| void | round () |
| round componentwise | |
| T | sqr_length () const |
| square length of vector | |
| void | normalize () |
| normalize the vector using the L2-Norm | |
| vec< T > | sub_vec (unsigned ifrom, unsigned size) const |
| extracts sub vector beginning at index ifrom with given size | |
| void | copy (unsigned ifrom, unsigned s, vec< T > &subvec) const |
| copy sub vector beginning at index ifrom with given size s into subvec | |
| void | paste (unsigned ifrom, const vec< T > &v) |
| paste v into vector beginning at index pos ifrom | |
Protected Attributes | |
| T * | _data |
| pointer to _data storage | |
| unsigned | _size |
| number or elements | |
| bool | data_is_external |
| store whether data is not owned by vector | |
Detailed Description
template<typename T>
class cgv::math::qem< T >
dimension independent implementation of quadric error metrics
Member Function Documentation
◆ minarg()
template<typename T >
|
inline |
compute point that minimizes distance to qem and is inside the sphere of radius max_distance around p_ref. If max_distance is -1, no sphere inclusion test is performed. relative_epsilon gives the absolute value of the fraction betweenan eigenvalue and the largest eigenvalue before it is set to zero. epsilon is a global limit on the absolute value of a singular value before accepted as non zero.
The documentation for this class was generated from the following file:
- D:/develop/projects/git/cgv/cgv/math/qem.h
