Loading...
Searching...
No Matches
Polygon_2 Class Reference
polygon More...
#include <region_2.h>
Inheritance diagram for Polygon_2:
Collaboration diagram for Polygon_2:
Public Member Functions | |
| Vector_2 | GetCenter () const override |
| Returns the center of the region. | |
| void | AddPoint (const Vector_2 &p) |
| Adds a point to the end of contour. | |
 Public Member Functions inherited from Region< N > | |
| virtual int | GetFlags () const |
| Returns a set of bit flags specifying which functions are implemented for this region (see RegFlags). | |
| virtual bool | TestPoint (const vector_t &p) const |
| Returns true if the point is in the region. | |
| virtual int | TestLine (const vector_t &p, const vector_t &dir, vec_type *frac, vector_t *surfp=nullptr, vector_t *surfn=nullptr, vec_type epsilon=0) const |
| Records the fractions frac1 and frac2 of the line (p,dir) corresponding to the intersections surfpi=p+fraci*dir, surfni - coords of intersection and corresponding outer normal. | |
| virtual vec_type | SurfProject (const vector_t &p, vector_t *surfp=nullptr, vector_t *surfn=nullptr) const |
| finds the point on the region surface closest to the given one p returns distance to this point (positive is P outside and negative is P inside region), surfp – projection, surfn – norm vector at surfp | |
| template<class contour_t > | |
| vec_type | TestContour (const contour_t &cnt, VecContour< N > *subcont=nullptr, vector_t *subcenter=nullptr) const |
| Returns the area fraction of the contour part that is inside the region, subcontour which is inside the region (if pointer is not nullptr) and the center of the subcontour (if pointer is not nullptr) | |
| virtual vec_type | TestPtrContour (const PtrContour< N > &cnt, VecContour< N > *subcont=nullptr, vector_t *subcenter=nullptr) const |
| virtual version of TestContour for particular PtrContour | |
| virtual vector_t | GetBoundingBox (vector_t *v1, vector_t *v2) const |
| Returns opposite corners of the box which contains the region inside itself. | |
| virtual vec_type | Volume () const |
| Returns volume of the region. '-1' means that function is not implemented. | |
| virtual RegDumper< N > * | CreateDumper () const |
| return pointer on object RegDumper, which has function Dump drawing the region | |
| virtual vec_type | GetInsideEdgePart (const vector_t &p1, const vector_t &p2) const |
| Returns a fraction of the edge [0-1] that belongs to the region. | |
| virtual vec_type | TestEdge (const vector_t &p1, const vector_t &p2, vector_t *surfp=nullptr, vector_t *surfn=nullptr) const |
| Returns a fraction of the edge from the first point till the intersection with the surface of the region. | |
| virtual vec_type | TestRay (const vector_t &p1, const vector_t &dir, vector_t *surfp=nullptr, vector_t *surfn=nullptr, vec_type epsilon=0) const |
| Returns the fraction of the ray corresponding to the nearest intersection in positive direction frac<0 means no intersection in positive direction intersections with frac<=epsilon are ignored. | |
| virtual size_t | GetElementarySubRegions (std::vector< int > *flags=nullptr, std::vector< Region * > *regs=nullptr) const |
| For composite regions returns the number of elementary subregions, otherwise returns 0. | |
| Public Member Functions inherited from VecContour< 2 > | |
| VecContour (InpIt pbeg, InpIt pend, vec_type a=1., const vector_t &shift=vector_t()) | |
| constructs a contour from input point iterator, applies additional transform p=>p*a+shift | |
| int | SetPoint (int i, const vector_t &p) |
| sets the ith point, if i is greated than current size appends the vector with the required amount of default Vector_3 | |
| vector_t | GetPoint (int ind) const |
| no checks | |
| void | Reverse () |
| Reverses the order of points of the contour (flips the normal) | |
Additional Inherited Members | |
| Public Types inherited from Region< N > | |
| typedef unknown_cat | category |
| Category of the region to determine the correct template behaviour for various algorithms (see Body categories categories). | |
Detailed Description
polygon
The documentation for this class was generated from the following file:
