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Defines | |
| #define | VGL_AREA_INSTANTIATE(T) extern "please include vgl/vgl_area.txx instead" |
Functions | |
| template<class T > | |
| T | vgl_area_signed (vgl_polygon< T > const &poly) |
| Computes the signed area of a polygon. | |
| template<class T > | |
| T | vgl_area (vgl_polygon< T > const &poly) |
| The area of a polygon. | |
| template<class T > | |
| T | vgl_area_enforce_orientation (vgl_polygon< T > const &poly) |
| The orientation enforced area of a polygon. | |
| template<class T > | |
| vgl_point_2d< T > | vgl_centroid (vgl_polygon< T > const &poly) |
| The area weighted center of a polygon. | |
Definition in file vgl_area.h.
| #define VGL_AREA_INSTANTIATE | ( | T | ) | extern "please include vgl/vgl_area.txx instead" |
Definition at line 37 of file vgl_area.h.
| T vgl_area | ( | vgl_polygon< T > const & | poly | ) |
| T vgl_area_enforce_orientation | ( | vgl_polygon< T > const & | poly | ) |
The orientation enforced area of a polygon.
Definition at line 59 of file vgl_area.txx.
| T vgl_area_signed | ( | vgl_polygon< T > const & | poly | ) |
Computes the signed area of a polygon.
The sign is positive if the polygon is oriented counter-clockwise (in RH coordinate system) and negative otherwise. For "polygons" consisting of more than one contour, the result is valid only if the contours are oriented consistently. That is, an enclosed contour must have opposite orientation to the enclosing contour.
Definition at line 12 of file vgl_area.txx.
| vgl_point_2d< T > vgl_centroid | ( | vgl_polygon< T > const & | poly | ) |
The area weighted center of a polygon.
In general this is different than the mean of the polygon's vertices
Definition at line 26 of file vgl_area.txx.
1.7.5.1