GRASS GIS 8 Programmer's Manual
8.5.0dev(2024)-6596d49e63
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Vector library - overlays. More...
Go to the source code of this file.
Functions | |
int | Vect_overlay_and (struct Map_info *, int, struct ilist *, struct ilist *, struct Map_info *, int, struct ilist *, struct ilist *, struct Map_info *) |
int | Vect_overlay_str_to_operator (const char *str) |
Get operator code from string. More... | |
int | Vect_overlay (struct Map_info *AMap, int atype, struct ilist *AList, struct ilist *AAList, struct Map_info *BMap, int btype, struct ilist *BList, struct ilist *BAList, int operator, struct Map_info *OMap) |
Overlay 2 vector maps and create new one. More... | |
int | Vect_overlay_and (struct Map_info *AMap, int atype, struct ilist *AList UNUSED, struct ilist *AAList UNUSED, struct Map_info *BMap, int btype, struct ilist *BList UNUSED, struct ilist *BAList UNUSED, struct Map_info *OMap) |
Overlay 2 vector maps with AND. More... | |
Vector library - overlays.
Higher level functions for reading/writing/manipulating vectors.
This is file is just example and starting point for writing overlay functions!!!
(C) 2001-2009 by the GRASS Development Team
This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.
Definition in file overlay.c.
int Vect_overlay | ( | struct Map_info * | AMap, |
int | atype, | ||
struct ilist * | AList, | ||
struct ilist * | AAList, | ||
struct Map_info * | BMap, | ||
int | btype, | ||
struct ilist * | BList, | ||
struct ilist * | BAList, | ||
int | operator, | ||
struct Map_info * | OMap | ||
) |
Overlay 2 vector maps and create new one.
AMap | vector map A | |
atype | feature type for A | |
AList | unused ? | |
AAList | unused ? | |
BMap | vector map B | |
btype | feature type for B | |
BList | unused ? | |
BAList | unused ? | |
operator | operator code | |
[out] | OMap | output vector map |
Definition at line 62 of file overlay.c.
References _, G_fatal_error(), GV_O_AND, and Vect_overlay_and().
int Vect_overlay_and | ( | struct Map_info * | , |
int | , | ||
struct ilist * | , | ||
struct ilist * | , | ||
struct Map_info * | , | ||
int | , | ||
struct ilist * | , | ||
struct ilist * | , | ||
struct Map_info * | |||
) |
Referenced by Vect_overlay().
int Vect_overlay_and | ( | struct Map_info * | AMap, |
int | atype, | ||
struct ilist *AList | UNUSED, | ||
struct ilist *AAList | UNUSED, | ||
struct Map_info * | BMap, | ||
int | btype, | ||
struct ilist *BList | UNUSED, | ||
struct ilist *BAList | UNUSED, | ||
struct Map_info * | OMap | ||
) |
Overlay 2 vector maps with AND.
AND supports:point line area point + - + line - - - area + - -
AMap | vector map A |
atype | feature type for A |
AList | unused ? |
AAList | unused ? |
BMap | vector map B |
btype | feature type for B |
BList | unused ? |
BAList | unused ? |
OMap | output vector map |
int Vect_overlay_str_to_operator | ( | const char * | str | ) |
Get operator code from string.
str | operator code string |
Definition at line 35 of file overlay.c.
References GV_O_AND, GV_O_OVERLAP, GV_ON_AND, and GV_ON_OVERLAP.