RONCC/Geografic-Information-System @ dba61439afb3580969410e3db8d38d8824860b0c

Martin Landa dba61439af vlib(pg): introduce V2_read_line_sfa()		13 年之前
..
Makefile	11e44a917a vlib: Vect_read_colors() added	14 年之前
README	3aa7302eb1 spelling	13 年之前
area.c	d5e1638c88 vlib: fix typo	13 年之前
array.c	1b5c5cea0b fix compilation without gdal/ogr	13 年之前
ascii.c	d8346217e9 G_asprintf2() changed to G_rasprintf()	13 年之前
box.c	6b34bd8eac vlib: Vect_get_line_box(): set T/B to PORT_DOUBLE_MAX for 2D data	13 年之前
break_lines.c	061680361c add new fns for topology check	13 年之前
break_polygons.c	d1f8b42521 typos fixed, part 2 (bug trac https://trac.osgeo.org/grass/ticket/1591)	13 年之前
bridges.c	1b5c5cea0b fix compilation without gdal/ogr	13 年之前
buffer.c	1b5c5cea0b fix compilation without gdal/ogr	13 年之前
buffer2.c	bcd7de2528 vector lib update for v.buffer (backport from devbr)	14 年之前
build.c	8eb93cfd41 vlib(pg): implement V1_write_line_pg() and V2_write_line_sfa()	13 年之前
build_nat.c	67e97ddd99 vlib: move generic fns from build_nat.c to build.c	13 年之前
build_ogr.c	6edb532698 vlib/pg: support reading geometry collections	13 年之前
build_pg.c	6edb532698 vlib/pg: support reading geometry collections	13 年之前
build_sfa.c	6edb532698 vlib/pg: support reading geometry collections	13 年之前
cats.c	476dfb31ee vlib: Vect_cat_get() now return num of found cats for given field	13 年之前
cindex.c	0a381c333d vlib:cindex.c: cosmetics in doxygen strings	14 年之前
clean_nodes.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 年之前
close.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
close_nat.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 年之前
close_ogr.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
close_pg.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
color_read.c	1b5c5cea0b fix compilation without gdal/ogr	13 年之前
color_remove.c	4e31098139 vlib: store alternative color tables to `vcolr2/mapset/name`	13 年之前
color_write.c	1b5c5cea0b fix compilation without gdal/ogr	13 年之前
constraint.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
dangles.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 年之前
dbcolumns.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 年之前
dgraph.c	bcd7de2528 vector lib update for v.buffer (backport from devbr)	14 年之前
dgraph.h	b06b8a0105 vectorlib:	16 年之前
e_intersect.c	1b5c5cea0b fix compilation without gdal/ogr	13 年之前
e_intersect.h	11cd111cbd Vlib: Vect_line_buffe2(), Vect_area_buffer2(), Vect_point_buffer2() and	16 年之前
field.c	6edb532698 vlib/pg: support reading geometry collections	13 年之前
find.c	1b5c5cea0b fix compilation without gdal/ogr	13 年之前
geos.c	8e11a4e54f add mising headers (compiling without gdal/ogr)	14 年之前
graph.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 年之前
handler.c	5bcb75e3b6 vlib: free allocated string in error_handler_io()	13 年之前
header.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
hist.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 年之前
init_head.c	f0e951bedf remove bounding boxes from vector topology (Radim's TODO): update Vlib	14 年之前
intersect.c	1b5c5cea0b fix compilation without gdal/ogr	13 年之前
legal_vname.c	22e3e2d77b replace GR_FATAL_* (rasters), GV_FATAL_* (vectors) by G_FATAL_*	13 年之前
level.c	1ae866496c vlib: unify \file doxygen instruction (cosmetics)	14 年之前
level_two.c	65f72a5848 vlib: allow to optionally maintain list of updated lines/nodes	13 年之前
line.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
list.c	56130a84b8 fix typo	14 年之前
map.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
merge_lines.c	f0e951bedf remove bounding boxes from vector topology (Radim's TODO): update Vlib	14 年之前
net.c	1b5c5cea0b fix compilation without gdal/ogr	13 年之前
open.c	8eb93cfd41 vlib(pg): implement V1_write_line_pg() and V2_write_line_sfa()	13 年之前
open_nat.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 年之前
open_ogr.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
open_pg.c	8eb93cfd41 vlib(pg): implement V1_write_line_pg() and V2_write_line_sfa()	13 年之前
overlap.c	d855a1780a Vlib: update constraints which are now hidden in struct	13 年之前
overlay.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 年之前
pg_local_proto.h	8eb93cfd41 vlib(pg): implement V1_write_line_pg() and V2_write_line_sfa()	13 年之前
poly.c	6edb532698 vlib/pg: support reading geometry collections	13 年之前
read.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 年之前
read_nat.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
read_ogr.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 年之前
read_pg.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 年之前
read_sfa.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 年之前
remove_areas.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 年之前
remove_duplicates.c	1b5c5cea0b fix compilation without gdal/ogr	13 年之前
rewind.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
rewind_nat.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
rewind_ogr.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
rewind_pg.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
select.c	5525c89b83 changed RTree struct names: update Vlib	14 年之前
simple_features.c	963bdb2b5d vlib: initial support for native reading PostGIS data (without OGR library)	13 年之前
sindex.c	ec326e4bb2 remove redundant code in vector lib: update Vlib	14 年之前
snap.c	5525c89b83 changed RTree struct names: update Vlib	14 年之前
tin.c	1ae866496c vlib: unify \file doxygen instruction (cosmetics)	14 年之前
type.c	19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860	14 年之前
window.c	1ae866496c vlib: unify \file doxygen instruction (cosmetics)	14 年之前
write.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 年之前
write_nat.c	8eb93cfd41 vlib(pg): implement V1_write_line_pg() and V2_write_line_sfa()	13 年之前
write_ogr.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 年之前
write_pg.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 年之前
write_sfa.c	dba61439af vlib(pg): introduce V2_read_line_sfa()	13 年之前

		
				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.