Include dependency graph for lwalgorithm.c:
Go to the source code of this file.
Functions | |
| int | p4d_same (const POINT4D *p1, const POINT4D *p2) |
| int | p3d_same (const POINT3D *p1, const POINT3D *p2) |
| int | p2d_same (const POINT2D *p1, const POINT2D *p2) |
| int | lw_segment_side (const POINT2D *p1, const POINT2D *p2, const POINT2D *q) |
| lw_segment_side() More... | |
| double | lw_seg_length (const POINT2D *A1, const POINT2D *A2) |
| Returns the length of a linear segment. More... | |
| int | lw_pt_in_arc (const POINT2D *P, const POINT2D *A1, const POINT2D *A2, const POINT2D *A3) |
| Returns true if P is on the same side of the plane partition defined by A1/A3 as A2 is. More... | |
| int | lw_pt_in_seg (const POINT2D *P, const POINT2D *A1, const POINT2D *A2) |
| Returns true if P is between A1/A2. More... | |
| int | lw_arc_is_pt (const POINT2D *A1, const POINT2D *A2, const POINT2D *A3) |
| Returns true if arc A is actually a point (all vertices are the same) . More... | |
| double | lw_arc_length (const POINT2D *A1, const POINT2D *A2, const POINT2D *A3) |
| Returns the length of a circular arc segment. More... | |
| int | lw_arc_side (const POINT2D *A1, const POINT2D *A2, const POINT2D *A3, const POINT2D *Q) |
| double | lw_arc_center (const POINT2D *p1, const POINT2D *p2, const POINT2D *p3, POINT2D *result) |
| Determines the center of the circle defined by the three given points. More... | |
| int | pt_in_ring_2d (const POINT2D *p, const POINTARRAY *ring) |
| static int | lw_seg_interact (const POINT2D *p1, const POINT2D *p2, const POINT2D *q1, const POINT2D *q2) |
| int | lw_segment_intersects (const POINT2D *p1, const POINT2D *p2, const POINT2D *q1, const POINT2D *q2) |
| returns the kind of CG_SEGMENT_INTERSECTION_TYPE behavior of lineseg 1 (constructed from p1 and p2) and lineseg 2 (constructed from q1 and q2) More... | |
| int | lwline_crossing_direction (const LWLINE *l1, const LWLINE *l2) |
| lwline_crossing_direction: returns the kind of CG_LINE_CROSS_TYPE behavior of 2 linestrings More... | |
| char * | geohash_point (double longitude, double latitude, int precision) |
| unsigned int | geohash_point_as_int (POINT2D *pt) |
| void | decode_geohash_bbox (char *geohash, double *lat, double *lon, int precision) |
| int | lwgeom_geohash_precision (GBOX bbox, GBOX *bounds) |
| char * | lwgeom_geohash (const LWGEOM *lwgeom, int precision) |
| Calculate the GeoHash (http://geohash.org) string for a geometry. More... | |
Variables | |
| static char * | base32 = "0123456789bcdefghjkmnpqrstuvwxyz" |
