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Geografic-In...
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vector
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Vlib
Vaclav Petras 1dba9b62d4 dox: fixing several doxygen warnings (wrong file names, typos, lt gt chars) 13 jaren geleden
..
Makefile 11e44a917a vlib: Vect_read_colors() added 14 jaren geleden
README 3aa7302eb1 spelling 13 jaren geleden
area.c 46cd09da20 Vlib: update for changed fn defs 13 jaren geleden
array.c 1b5c5cea0b fix compilation without gdal/ogr 13 jaren geleden
ascii.c c756102fbf Vlib: speed up v.out.ascii for multiple column export 13 jaren geleden
box.c 2306002198 vector libs: optimize bbox search 13 jaren geleden
break_lines.c 3852864fb5 Vlib: speed up Vect_break_lines() 13 jaren geleden
break_polygons.c 4d689f12f2 Vlib: static where possible 13 jaren geleden
bridges.c 46cd09da20 Vlib: update for changed fn defs 13 jaren geleden
buffer.c 1b5c5cea0b fix compilation without gdal/ogr 13 jaren geleden
buffer2.c bcd7de2528 vector lib update for v.buffer (backport from devbr) 14 jaren geleden
build.c 95764a1ee9 Vlib: faster Vect_isle_find_area() 13 jaren geleden
build_nat.c 6bddbcf2f0 vlib: improve PostGIS topology support 13 jaren geleden
build_ogr.c 55e6a4a3ff vlib(pg): skip features without geometry 13 jaren geleden
build_pg.c f3db19afaf vlib/pg: build isles for PostGIS Topology access 13 jaren geleden
build_sfa.c 9f386c79b7 vlib (pseudo-topo): fix for polygons with more then 20 rings 13 jaren geleden
cats.c b701f4de47 vlib: dox 13 jaren geleden
cindex.c 0a381c333d vlib:cindex.c: cosmetics in doxygen strings 14 jaren geleden
clean_nodes.c 19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860 14 jaren geleden
close.c 22fecc6eef vlib: check GRASS_VECTOR_PGFILE (defined by v.out.postgis) when opening/creating vector map 13 jaren geleden
close_nat.c 19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860 14 jaren geleden
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 jaren geleden
close_pg.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 jaren geleden
color_read.c 1b5c5cea0b fix compilation without gdal/ogr 13 jaren geleden
color_remove.c 4e31098139 vlib: store alternative color tables to `vcolr2/mapset/name` 14 jaren geleden
color_write.c 1b5c5cea0b fix compilation without gdal/ogr 13 jaren geleden
constraint.c a658901634 Vlib: dox: updating documentation according to V2_read_next_line_nat etc. where Vect_box_overlap is used 13 jaren geleden
copy.c 9a8ae6a28a Vlib: Vect_copy_map_lines_field(), copy != export 13 jaren geleden
dangles.c 19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860 14 jaren geleden
dbcolumns.c 1dba9b62d4 dox: fixing several doxygen warnings (wrong file names, typos, lt gt chars) 13 jaren geleden
dgraph.c f3006b1a43 Vlib dgraph.c: use GRASS_EPSILON 13 jaren geleden
dgraph.h b06b8a0105 vectorlib: 16 jaren geleden
e_intersect.c 1b5c5cea0b fix compilation without gdal/ogr 13 jaren geleden
e_intersect.h 11cd111cbd Vlib: Vect_line_buffe2(), Vect_area_buffer2(), Vect_point_buffer2() and 16 jaren geleden
field.c a929646479 vlib: move Vect_copy_map_lines() and Vect_copy_tables() to the separate file (copy.c) 13 jaren geleden
find.c 46cd09da20 Vlib: update for changed fn defs 13 jaren geleden
geos.c 8e11a4e54f add mising headers (compiling without gdal/ogr) 14 jaren geleden
graph.c 19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860 14 jaren geleden
handler.c 5bcb75e3b6 vlib: free allocated string in error_handler_io() 13 jaren geleden
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 jaren geleden
header_finfo.c 1dba9b62d4 dox: fixing several doxygen warnings (wrong file names, typos, lt gt chars) 13 jaren geleden
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 jaren geleden
init_head.c 1655b43918 vlib(pg): introduce V1_rewrite_line_pg() and V1_rewrite_line_sfa() 13 jaren geleden
intersect.c f9b103cf33 Vlib: changed rtree search fn 13 jaren geleden
legal_vname.c 22e3e2d77b replace GR_FATAL_* (rasters), GV_FATAL_* (vectors) by G_FATAL_* 13 jaren geleden
level.c 1ae866496c vlib: unify \file doxygen instruction (cosmetics) 14 jaren geleden
level_two.c 1dba9b62d4 dox: fixing several doxygen warnings (wrong file names, typos, lt gt chars) 13 jaren geleden
line.c c69464e8a2 Vlib: dox: note about freeing 13 jaren geleden
list.c 56130a84b8 fix typo 14 jaren geleden
map.c a929646479 vlib: move Vect_copy_map_lines() and Vect_copy_tables() to the separate file (copy.c) 13 jaren geleden
merge_lines.c f0e951bedf remove bounding boxes from vector topology (Radim's TODO): update Vlib 14 jaren geleden
net.c 1b5c5cea0b fix compilation without gdal/ogr 13 jaren geleden
open.c 22fecc6eef vlib: check GRASS_VECTOR_PGFILE (defined by v.out.postgis) when opening/creating vector map 13 jaren geleden
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 jaren geleden
open_ogr.c 5a06915a63 vlib/pg: don't try to read fidx file for vector maps (PostGIS topology access) 13 jaren geleden
open_pg.c 87e30f072b vlib: fix clean up when creation of new vector map fails (pg) 13 jaren geleden
overlap.c d855a1780a Vlib: update constraints which are now hidden in struct 13 jaren geleden
overlay.c 19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860 14 jaren geleden
pg_local_proto.h 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 jaren geleden
poly.c 46cd09da20 Vlib: update for changed fn defs 13 jaren geleden
read.c 694db7ff41 partly revert https://trac.osgeo.org/grass/changeset/51975 - keep two level (level 3 is reserved for 3D topology) 13 jaren geleden
read_nat.c 963bdb2b5d vlib: *initial* support for native reading PostGIS data (without OGR library) 13 jaren geleden
read_ogr.c 0764296ef8 dox: reducing doxygen warnings 13 jaren geleden
read_pg.c e32f8793bb vlib/pg: fix for polygons with more then 20 rings 13 jaren geleden
read_sfa.c 751ffd5c39 Vlib: minor bugfix 13 jaren geleden
remove_areas.c 19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860 14 jaren geleden
remove_duplicates.c 1b5c5cea0b fix compilation without gdal/ogr 13 jaren geleden
rewind.c 7c8d5a94b1 vlib: first steps for full PostGIS topology support 13 jaren geleden
rewind_nat.c 963bdb2b5d vlib: *initial* support for native reading PostGIS data (without OGR library) 13 jaren geleden
rewind_ogr.c 963bdb2b5d vlib: *initial* support for native reading PostGIS data (without OGR library) 13 jaren geleden
rewind_pg.c fb5b616a45 vlib(pg): follow C indentation rules 13 jaren geleden
rtree_search.c f9b103cf33 Vlib: changed rtree search fn 13 jaren geleden
select.c f9b103cf33 Vlib: changed rtree search fn 13 jaren geleden
simple_features.c 40064fc077 vlib: better doxygen documentation for simple_features.c 13 jaren geleden
sindex.c 8397d5e329 Moved ilist from vector lib into libgis 13 jaren geleden
snap.c 4d689f12f2 Vlib: static where possible 13 jaren geleden
tin.c 1ae866496c vlib: unify \file doxygen instruction (cosmetics) 14 jaren geleden
type.c 19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860 14 jaren geleden
window.c 1ae866496c vlib: unify \file doxygen instruction (cosmetics) 14 jaren geleden
write.c 87f20603fa vlib: doxygen cosmetics 13 jaren geleden
write_nat.c 46cd09da20 Vlib: update for changed fn defs 13 jaren geleden
write_ogr.c 87f20603fa vlib: doxygen cosmetics 13 jaren geleden
write_pg.c f00d147981 vlib: postgis topology support (work in progress) 13 jaren geleden
write_sfa.c 87f20603fa vlib: doxygen cosmetics 13 jaren geleden

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.