Cylinder with arbitrary 2D base of the type base_t Cylinder axis passes the point origin and directed along vector n Axes of 2D plane which contain the base are directed along vector x and y Base is specified in 2D coordinate system defined by origin, x and y Vector n is perpendicular to x and y (cylinder axis is perpendicular to the base) "Tilted" cylinder with axis not perpendicular to the base can be specified using template StretchedRegion. More...
#include <region_3.h>
Public Member Functions | |
| Vector_2 | Vector_3to2 (const Vector_3 &v3, vec_type *height=NULL) const |
| project point v at base 2D coordinate system and record to height distance to this base plane | |
| Vector_3 | Vector_2to3 (const Vector_2 &v2, const vec_type height=0) const |
| move point from 2D base coordinate system to 3D space and shift from the base plane at distance height | |
| virtual int | GetFlags () const |
| Returns a set of bit flags specifying which functions are implemented for this region (see RegFlags). | |
| virtual int | TestLine (const vector_t &p, const vector_t &dir, vec_type *frac, vector_t *surfp=NULL, vector_t *surfn=NULL, 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 RegDumper< 3 > * | CreateDumper () const |
| return pointer on object RegDumper, which has function Dump drawing the region | |
 Public Member Functions inherited from Region< N > | |
| virtual bool | TestPoint (const vector_t &p) const |
| Returns true if the point is in the region. | |
| 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 vector_t | GetCenter () const |
| Returns the center of the region. | |
| virtual vec_type | Volume () const |
| Returns volume of the region. '-1' means that function is not implemented. | |
| 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 Attributes | |
| mngptr< base_t > | base |
| base | |
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
class Cylinder< base_tt >
Cylinder with arbitrary 2D base of the type base_t Cylinder axis passes the point origin and directed along vector n Axes of 2D plane which contain the base are directed along vector x and y Base is specified in 2D coordinate system defined by origin, x and y Vector n is perpendicular to x and y (cylinder axis is perpendicular to the base) "Tilted" cylinder with axis not perpendicular to the base can be specified using template StretchedRegion.
Member Function Documentation
◆ TestLine()
|
virtual |
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.
Intersections with frac<=epsilon are ignored. Returns the number of intersections: 0, 1 (touching or intersection of infinite region) or 2 because region is convex.
Reimplemented from Region< N >.
Reimplemented in Cone< base_tt >.
The documentation for this class was generated from the following files:
