RONCC/Geografic-Information-System @ dba61439afb3580969410e3db8d38d8824860b0c

Martin Landa dba61439af vlib(pg): introduce V2_read_line_sfa()		13 lat temu
..
Makefile	11e44a917a vlib: Vect_read_colors() added	14 lat temu
README	3aa7302eb1 spelling	13 lat temu
area.c	d5e1638c88 vlib: fix typo	13 lat temu
array.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
ascii.c	d8346217e9 G_asprintf2() changed to G_rasprintf()	13 lat temu
box.c	6b34bd8eac vlib: Vect_get_line_box(): set T/B to PORT_DOUBLE_MAX for 2D data	13 lat temu
break_lines.c	061680361c add new fns for topology check	13 lat temu
break_polygons.c	d1f8b42521 typos fixed, part 2 (bug trac https://trac.osgeo.org/grass/ticket/1591)	13 lat temu
bridges.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
buffer.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
buffer2.c	bcd7de2528 vector lib update for v.buffer (backport from devbr)	14 lat temu
build.c	8eb93cfd41 vlib(pg): implement V1_write_line_pg() and V2_write_line_sfa()	13 lat temu
build_nat.c	67e97ddd99 vlib: move generic fns from build_nat.c to build.c	13 lat temu
build_ogr.c	6edb532698 vlib/pg: support reading geometry collections	13 lat temu
build_pg.c	6edb532698 vlib/pg: support reading geometry collections	13 lat temu
build_sfa.c	6edb532698 vlib/pg: support reading geometry collections	13 lat temu
cats.c	476dfb31ee vlib: Vect_cat_get() now return num of found cats for given field	13 lat temu
cindex.c	0a381c333d vlib:cindex.c: cosmetics in doxygen strings	14 lat temu
clean_nodes.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
close.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
close_nat.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
close_ogr.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
close_pg.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 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	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
dangles.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
dbcolumns.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
dgraph.c	bcd7de2528 vector lib update for v.buffer (backport from devbr)	14 lat temu
dgraph.h	b06b8a0105 vectorlib:	16 lat temu
e_intersect.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
e_intersect.h	11cd111cbd Vlib: Vect_line_buffe2(), Vect_area_buffer2(), Vect_point_buffer2() and	16 lat temu
field.c	6edb532698 vlib/pg: support reading geometry collections	13 lat temu
find.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
geos.c	8e11a4e54f add mising headers (compiling without gdal/ogr)	14 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	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
hist.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
init_head.c	f0e951bedf remove bounding boxes from vector topology (Radim's TODO): update Vlib	14 lat temu
intersect.c	1b5c5cea0b fix compilation without gdal/ogr	13 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	65f72a5848 vlib: allow to optionally maintain list of updated lines/nodes	13 lat temu
line.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
list.c	56130a84b8 fix typo	14 lat temu
map.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
merge_lines.c	f0e951bedf remove bounding boxes from vector topology (Radim's TODO): update Vlib	14 lat temu
net.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
open.c	8eb93cfd41 vlib(pg): implement V1_write_line_pg() and V2_write_line_sfa()	13 lat temu
open_nat.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
open_ogr.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
open_pg.c	8eb93cfd41 vlib(pg): implement V1_write_line_pg() and V2_write_line_sfa()	13 lat temu
overlap.c	d855a1780a Vlib: update constraints which are now hidden in struct	13 lat temu
overlay.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
pg_local_proto.h	8eb93cfd41 vlib(pg): implement V1_write_line_pg() and V2_write_line_sfa()	13 lat temu
poly.c	6edb532698 vlib/pg: support reading geometry collections	13 lat temu
read.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 lat temu
read_nat.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
read_ogr.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 lat temu
read_pg.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 lat temu
read_sfa.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 lat temu
remove_areas.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 lat temu
remove_duplicates.c	1b5c5cea0b fix compilation without gdal/ogr	13 lat temu
rewind.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	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	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
select.c	5525c89b83 changed RTree struct names: update Vlib	14 lat temu
simple_features.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 lat temu
sindex.c	ec326e4bb2 remove redundant code in vector lib: update Vlib	14 lat temu
snap.c	5525c89b83 changed RTree struct names: update Vlib	14 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	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 lat temu
write_nat.c	8eb93cfd41 vlib(pg): implement V1_write_line_pg() and V2_write_line_sfa()	13 lat temu
write_ogr.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 lat temu
write_pg.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 lat temu
write_sfa.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	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.