RONCC/Geografic-Information-System @ aa84e1616fef2cf5d3f9c97fbe6acf36c708dde0

Martin Landa aa84e1616f vlib(pg): fix inserting face when srid is specified		12 lat temu
..
Makefile	11e44a917a vlib: Vect_read_colors() added	14 lat temu
README	3aa7302eb1 spelling	13 lat temu
area.c	46cd09da20 Vlib: update for changed fn defs	13 lat temu
array.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
ascii.c	0cbc6ec0f5 Vlib: fix buffer overflow and column handling for ascii export	12 lat temu
box.c	2306002198 vector libs: optimize bbox search	13 lat temu
break_lines.c	1857181ba1 Vlib: fix Vect_break_lines_list()	12 lat temu
break_polygons.c	76b67f7607 Added methods to modify rectangle boundary coordinates of different dimensions. Modified the names of several functions. Added doxygen style function descriptions.	12 lat temu
bridges.c	f50b72072d vector cleaning: adjustment for pathological cases	12 lat temu
buffer.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
buffer2.c	f2ec32951d fix some doxygen warnings	12 lat temu
build.c	0d8dfe1cc4 Vlib: always clean up spatial index	12 lat temu
build_nat.c	491eed2fdf vlib/PostGIS Topo: implement deleting faces (work in progress)	12 lat temu
build_ogr.c	55e6a4a3ff vlib(pg): skip features without geometry	13 lat temu
build_pg.c	4c67170ebc vlib/PostGIS Topology: report correct number of centroids and isles (work in progress)	12 lat temu
build_sfa.c	05322be998 PG topo support major update	12 lat temu
cats.c	289cb8b45b Vlib: fix Vect_cats_set_constraint() warning	12 lat temu
cindex.c	e16fef8941 Vlib: simplify init/free of support structures	12 lat temu
clean_nodes.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
close.c	14535ac610 Vlib:fix Vect_close()	12 lat temu
close_nat.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
close_ogr.c	60496bf0ad vlib: when writing to external formats (defined by v.external.out) vector library creates link automatically when closing the map (no need to run v.external explicitly)	13 lat temu
close_pg.c	2ebf4bcd86 v.out.postgis: better support for creation options	12 lat temu
color_read.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
color_remove.c	4e31098139 vlib: store alternative color tables to `vcolr2/mapset/name`	13 lat temu
color_write.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
constraint.c	a658901634 Vlib: dox: updating documentation according to V2_read_next_line_nat etc. where Vect_box_overlap is used	13 lat temu
copy.c	8359090dcf vlib (PostGIS Topo): update TopoGeometry data also for centroids	12 lat temu
dangles.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
dbcolumns.c	1dba9b62d4 dox: fixing several doxygen warnings (wrong file names, typos, lt gt chars)	12 lat temu
dgraph.c	3d05792b0a avoid debug level 0 -- G_debug(0, ...)	12 lat temu
dgraph.h	b06b8a0105 vectorlib:	16 lat temu
e_intersect.c	05322be998 PG topo support major update	12 lat temu
e_intersect.h	11cd111cbd Vlib: Vect_line_buffe2(), Vect_area_buffer2(), Vect_point_buffer2() and	16 lat temu
field.c	09b7db1dd9 doxygen errors fixed	12 lat temu
find.c	46cd09da20 Vlib: update for changed fn defs	13 lat temu
geos.c	09b7db1dd9 doxygen errors fixed	12 lat temu
graph.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
handler.c	5bcb75e3b6 vlib: free allocated string in error_handler_io()	13 lat temu
header.c	60496bf0ad vlib: when writing to external formats (defined by v.external.out) vector library creates link automatically when closing the map (no need to run v.external explicitly)	13 lat temu
header_finfo.c	1dba9b62d4 dox: fixing several doxygen warnings (wrong file names, typos, lt gt chars)	12 lat temu
hist.c	60496bf0ad vlib: when writing to external formats (defined by v.external.out) vector library creates link automatically when closing the map (no need to run v.external explicitly)	13 lat temu
init_head.c	1655b43918 vlib(pg): introduce V1_rewrite_line_pg() and V1_rewrite_line_sfa()	13 lat temu
intersect.c	49122254e9 Vlib: optimize Vect_line_intersection()	12 lat temu
legal_vname.c	22e3e2d77b replace GR_FATAL_* (rasters), GV_FATAL_* (vectors) by G_FATAL_*	13 lat temu
level.c	1ae866496c vlib: unify \file doxygen instruction (cosmetics)	14 lat temu
level_two.c	09b7db1dd9 doxygen errors fixed	12 lat temu
line.c	09b7db1dd9 doxygen errors fixed	12 lat temu
list.c	e70a921252 change boxlist_add args	12 lat temu
local_proto.h	491eed2fdf vlib/PostGIS Topo: implement deleting faces (work in progress)	12 lat temu
map.c	f702d7ebb4 Vlib partially revert https://trac.osgeo.org/grass/changeset/52776	12 lat temu
merge_lines.c	4d0f88dfb8 Vlib: simplify code	12 lat temu
net.c	e8f69b5901 Vlib: fix index to array	12 lat temu
open.c	175a1a9d3a vlib(pg): enable srid support	12 lat temu
open_nat.c	60496bf0ad vlib: when writing to external formats (defined by v.external.out) vector library creates link automatically when closing the map (no need to run v.external explicitly)	13 lat temu
open_ogr.c	5a06915a63 vlib/pg: don't try to read fidx file for vector maps (PostGIS topology access)	13 lat temu
open_pg.c	175a1a9d3a vlib(pg): enable srid support	12 lat temu
overlap.c	d855a1780a Vlib: update constraints which are now hidden in struct	13 lat temu
overlay.c	8dd511a034 Vlib overlay: adjust for new topology	12 lat temu
pg_local_proto.h	198d4f8680 vlib/pg: don't skip fid column if exists, check data type - must be integer	12 lat temu
poly.c	46cd09da20 Vlib: update for changed fn defs	13 lat temu
read.c	f702d7ebb4 Vlib partially revert https://trac.osgeo.org/grass/changeset/52776	12 lat temu
read_nat.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
read_ogr.c	0764296ef8 dox: reducing doxygen warnings	12 lat temu
read_pg.c	8487f8bc10 vlib: fix typo (PostGIS Topology)	12 lat temu
read_sfa.c	751ffd5c39 Vlib: minor bugfix	13 lat temu
remove_areas.c	765ea55858 Vect_remove_small_areas(): report number of removed areas on standard message level (it's quite important info)	12 lat temu
remove_duplicates.c	dafac9e75a Vlib: optimize Vect_remove_duplicates()	12 lat temu
rewind.c	7c8d5a94b1 vlib: first steps for full PostGIS topology support	13 lat temu
rewind_nat.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
rewind_ogr.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
rewind_pg.c	9d107310d9 vlib (PostGIS Topo): better support for areas/faces (work in progress)	12 lat temu
rtree_search.c	f9b103cf33 Vlib: changed rtree search fn	13 lat temu
select.c	76b67f7607 Added methods to modify rectangle boundary coordinates of different dimensions. Modified the names of several functions. Added doxygen style function descriptions.	12 lat temu
simple_features.c	40064fc077 vlib: better doxygen documentation for simple_features.c	13 lat temu
sindex.c	d1f6f39e07 Vlib: optimize Vect_select_lines_by_box()	12 lat temu
snap.c	4457f85045 vlib: Vect_snap_lines(): progress messages should be printed on verbosity level 1	12 lat temu
tin.c	1ae866496c vlib: unify \file doxygen instruction (cosmetics)	14 lat temu
type.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
window.c	1ae866496c vlib: unify \file doxygen instruction (cosmetics)	14 lat temu
write.c	05322be998 PG topo support major update	12 lat temu
write_nat.c	491eed2fdf vlib/PostGIS Topo: implement deleting faces (work in progress)	12 lat temu
write_ogr.c	87f20603fa vlib: doxygen cosmetics	13 lat temu
write_pg.c	aa84e1616f vlib(pg): fix inserting face when srid is specified	12 lat temu
write_sfa.c	87f20603fa vlib: doxygen cosmetics	13 lat temu

		
				README
			
				   Dangles
  ---------
GRASS doesn't allow areas/islands with dangles. If an island has dangle, it is not built
and attached to outer area and as a consequence, some functions do not work as expected.
For example Vect_area_area() and Vect_find_area().
See comments in build_nat.c: Vect_attach_centroids()

   Category index
  ----------------
Category index is created when Vect_build(), i.e. Vect_build_partial(, GV_BUILD_ALL,) 
is called. Plus_head.cidx_up_to_date is set to 1 if Category index is created.
Any later call to Vect_write_line() / Vect_rewrite_line() / Vect_delete_line() resets
Plus_head.cidx_up_to_date to 0 and doesn't update category index. 
All modules using update on level 2 must call full build, i.e. Vect_build(), at the end.

All features without category are written to category index of field 0. 
The category index also stores type of feature, that makes it possible to find areas
without centroid through category index.