measures.h File Reference
#include "liblwgeom_internal.h"
Include dependency graph for measures.h:
This graph shows which files directly or indirectly include this file:
Go to the source code of this file.
Data Structures | |
| struct | DISTPTS |
| Structure used in distance-calculations. More... | |
| struct | LISTSTRUCT |
Macros | |
| #define | DIST_MAX -1 |
| #define | DIST_MIN 1 |
Functions | |
| int | lw_dist2d_comp (const LWGEOM *lw1, const LWGEOM *lw2, DISTPTS *dl) |
| This function just deserializes geometries Bboxes is not checked here since it is the subgeometries bboxes we will use anyway. More... | |
| int | lw_dist2d_distribute_bruteforce (const LWGEOM *lwg1, const LWGEOM *lwg2, DISTPTS *dl) |
| int | lw_dist2d_recursive (const LWGEOM *lwg1, const LWGEOM *lwg2, DISTPTS *dl) |
| This is a recursive function delivering every possible combination of subgeometries. More... | |
| int | lw_dist2d_check_overlap (LWGEOM *lwg1, LWGEOM *lwg2) |
| int | lw_dist2d_distribute_fast (LWGEOM *lwg1, LWGEOM *lwg2, DISTPTS *dl) |
| Geometries are distributed for the new faster distance-calculations. More... | |
| int | lw_dist2d_pt_ptarray (const POINT2D *p, POINTARRAY *pa, DISTPTS *dl) |
| search all the segments of pointarray to see which one is closest to p1 Returns minimum distance between point and pointarray More... | |
| int | lw_dist2d_pt_ptarrayarc (const POINT2D *p, const POINTARRAY *pa, DISTPTS *dl) |
| Search all the arcs of pointarray to see which one is closest to p1 Returns minimum distance between point and arc pointarray. More... | |
| int | lw_dist2d_ptarray_ptarray (POINTARRAY *l1, POINTARRAY *l2, DISTPTS *dl) |
| test each segment of l1 against each segment of l2. More... | |
| int | lw_dist2d_ptarray_ptarrayarc (const POINTARRAY *pa, const POINTARRAY *pb, DISTPTS *dl) |
| Test each segment of pa against each arc of pb for distance. More... | |
| int | lw_dist2d_ptarrayarc_ptarrayarc (const POINTARRAY *pa, const POINTARRAY *pb, DISTPTS *dl) |
| Test each arc of pa against each arc of pb for distance. More... | |
| int | lw_dist2d_ptarray_poly (POINTARRAY *pa, LWPOLY *poly, DISTPTS *dl) |
| int | lw_dist2d_point_point (LWPOINT *point1, LWPOINT *point2, DISTPTS *dl) |
| point to point calculation More... | |
| int | lw_dist2d_point_line (LWPOINT *point, LWLINE *line, DISTPTS *dl) |
| point to line calculation More... | |
| int | lw_dist2d_point_tri (LWPOINT *point, LWTRIANGLE *tri, DISTPTS *dl) |
| int | lw_dist2d_point_circstring (LWPOINT *point, LWCIRCSTRING *circ, DISTPTS *dl) |
| int | lw_dist2d_point_poly (LWPOINT *point, LWPOLY *poly, DISTPTS *dl) |
| int | lw_dist2d_point_curvepoly (LWPOINT *point, LWCURVEPOLY *poly, DISTPTS *dl) |
| int | lw_dist2d_line_line (LWLINE *line1, LWLINE *line2, DISTPTS *dl) |
| int | lw_dist2d_line_tri (LWLINE *line, LWTRIANGLE *tri, DISTPTS *dl) |
| int | lw_dist2d_line_circstring (LWLINE *line1, LWCIRCSTRING *line2, DISTPTS *dl) |
| int | lw_dist2d_line_poly (LWLINE *line, LWPOLY *poly, DISTPTS *dl) |
| line to polygon calculation Brute force. More... | |
| int | lw_dist2d_line_curvepoly (LWLINE *line, LWCURVEPOLY *poly, DISTPTS *dl) |
| int | lw_dist2d_tri_tri (LWTRIANGLE *tri1, LWTRIANGLE *tri2, DISTPTS *dl) |
| int | lw_dist2d_tri_circstring (LWTRIANGLE *tri, LWCIRCSTRING *line, DISTPTS *dl) |
| int | lw_dist2d_tri_poly (LWTRIANGLE *tri, LWPOLY *poly, DISTPTS *dl) |
| int | lw_dist2d_tri_curvepoly (LWTRIANGLE *tri, LWCURVEPOLY *poly, DISTPTS *dl) |
| int | lw_dist2d_circstring_circstring (LWCIRCSTRING *line1, LWCIRCSTRING *line2, DISTPTS *dl) |
| int | lw_dist2d_circstring_poly (LWCIRCSTRING *circ, LWPOLY *poly, DISTPTS *dl) |
| int | lw_dist2d_circstring_curvepoly (LWCIRCSTRING *circ, LWCURVEPOLY *poly, DISTPTS *dl) |
| int | lw_dist2d_poly_poly (LWPOLY *poly1, LWPOLY *poly2, DISTPTS *dl) |
| Function handling polygon to polygon calculation 1 if we are looking for maxdistance, just check the outer rings. More... | |
| int | lw_dist2d_poly_curvepoly (LWPOLY *poly1, LWCURVEPOLY *curvepoly2, DISTPTS *dl) |
| int | lw_dist2d_curvepoly_curvepoly (LWCURVEPOLY *poly1, LWCURVEPOLY *poly2, DISTPTS *dl) |
| int | lw_dist2d_pre_seg_seg (POINTARRAY *l1, POINTARRAY *l2, LISTSTRUCT *list1, LISTSTRUCT *list2, double k, DISTPTS *dl) |
| preparation before lw_dist2d_seg_seg. More... | |
| int | lw_dist2d_selected_seg_seg (const POINT2D *A, const POINT2D *B, const POINT2D *C, const POINT2D *D, DISTPTS *dl) |
| This is the same function as lw_dist2d_seg_seg but without any calculations to determine intersection since we already know they do not intersect. More... | |
| int | struct_cmp_by_measure (const void *a, const void *b) |
| int | lw_dist2d_fast_ptarray_ptarray (POINTARRAY *l1, POINTARRAY *l2, DISTPTS *dl, GBOX *box1, GBOX *box2) |
| The new faster calculation comparing pointarray to another pointarray the arrays can come from both polygons and linestrings. More... | |
| int | lw_dist2d_pt_pt (const POINT2D *P, const POINT2D *Q, DISTPTS *dl) |
| Compares incoming points and stores the points closest to each other or most far away from each other depending on dl->mode (max or min) More... | |
| int | lw_dist2d_pt_seg (const POINT2D *P, const POINT2D *A1, const POINT2D *A2, DISTPTS *dl) |
| lw_dist2d_comp from p to line A->B This one is now sending every occasion to lw_dist2d_pt_pt Before it was handling occasions where r was between 0 and 1 internally and just returning the distance without identifying the points. More... | |
| int | lw_dist2d_pt_arc (const POINT2D *P, const POINT2D *A1, const POINT2D *A2, const POINT2D *A3, DISTPTS *dl) |
| int | lw_dist2d_seg_seg (const POINT2D *A1, const POINT2D *A2, const POINT2D *B1, const POINT2D *B2, DISTPTS *dl) |
| Finds the shortest distance between two segments. More... | |
| int | lw_dist2d_seg_arc (const POINT2D *A1, const POINT2D *A2, const POINT2D *B1, const POINT2D *B2, const POINT2D *B3, DISTPTS *dl) |
| Calculate the shortest distance between an arc and an edge. More... | |
| int | lw_dist2d_arc_arc (const POINT2D *A1, const POINT2D *A2, const POINT2D *A3, const POINT2D *B1, const POINT2D *B2, const POINT2D *B3, DISTPTS *dl) |
| void | lw_dist2d_distpts_init (DISTPTS *dl, int mode) |
| double | lw_arc_length (const POINT2D *A1, const POINT2D *A2, const POINT2D *A3) |
| Returns the length of a circular arc segment. More... | |
| LWGEOM * | lw_dist2d_distancepoint (const LWGEOM *lw1, const LWGEOM *lw2, int32_t srid, int mode) |
| Function initializing closestpoint calculations. More... | |
| LWGEOM * | lw_dist2d_distanceline (const LWGEOM *lw1, const LWGEOM *lw2, int32_t srid, int mode) |
| Function initializing shortestline and longestline calculations. More... | |
