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Geografic-In...
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lib
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vector
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Vlib
Martin Landa ce8e3c82d3 vlib/pg: faces are exported as 3D polygons (simple features) 12 år sedan
..
Makefile 11e44a917a vlib: Vect_read_colors() added 14 år sedan
README 3aa7302eb1 spelling 13 år sedan
area.c 2e7adedc5c vlib(pg): speed up Vect_get_area|isle_points() for PostGIS Topology 12 år sedan
area_pg.c 2e7adedc5c vlib(pg): speed up Vect_get_area|isle_points() for PostGIS Topology 12 år sedan
array.c 1b5c5cea0b fix compilation without gdal/ogr 13 år sedan
ascii.c 627cf8d1bb v.in.ascii: fatal error when import fails 12 år sedan
box.c fa2e73bd88 vlib: Vect_get_line|area|isle_box() return -1 on error 12 år sedan
break_lines.c 16ae7ee9cc Vlib: reinstate Vect_break_lines() speed-up (sorry for the noise) 12 år sedan
break_polygons.c 2881d0edbd Vlib: Vect_break_polygons() stop rtree search on first hit 12 år sedan
bridges.c 955ec9ab4c vlib: add V2__delete_line_topo_nat() 12 år sedan
buffer.c 1b5c5cea0b fix compilation without gdal/ogr 13 år sedan
buffer2.c f2ec32951d fix some doxygen warnings 13 år sedan
build.c 2e7adedc5c vlib(pg): speed up Vect_get_area|isle_points() for PostGIS Topology 12 år sedan
build_nat.c 2e7adedc5c vlib(pg): speed up Vect_get_area|isle_points() for PostGIS Topology 12 år sedan
build_ogr.c 55e6a4a3ff vlib(pg): skip features without geometry 13 år sedan
build_pg.c f04cf337d9 v.out.postgis: avoid segfault when no features exported 12 år sedan
build_sfa.c ac6194c549 vlib(pg): implement PG version for Vect_get_area_points() 12 år sedan
cats.c 7eb882569c vlib: added new subrouties to the public API 12 år sedan
cindex.c 6d01929355 Vlib: use custom bsearch for Vect_cidx_find_next() 12 år sedan
clean_nodes.c 19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860 14 år sedan
close.c 603b4e8a32 vlip(pg): fix creating topogeometry objects 12 år sedan
close_nat.c a644db1e21 vlib: fix https://trac.osgeo.org/grass/changeset/55681 side-affect for external formats (Vect__delete() recursive call) 12 år sedan
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 år sedan
close_pg.c ac6194c549 vlib(pg): implement PG version for Vect_get_area_points() 12 år sedan
color_read.c 1b5c5cea0b fix compilation without gdal/ogr 13 år sedan
color_remove.c 4e31098139 vlib: store alternative color tables to `vcolr2/mapset/name` 14 år sedan
color_write.c 1b5c5cea0b fix compilation without gdal/ogr 13 år sedan
constraint.c a658901634 Vlib: dox: updating documentation according to V2_read_next_line_nat etc. where Vect_box_overlap is used 13 år sedan
copy.c 71c0bb612b vlib: report number of skipped area when copying vector features (as simple features) 12 år sedan
dangles.c 19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860 14 år sedan
dbcolumns.c 1dba9b62d4 dox: fixing several doxygen warnings (wrong file names, typos, lt gt chars) 13 år sedan
dgraph.c 3d05792b0a avoid debug level 0 -- G_debug(0, ...) 12 år sedan
dgraph.h b06b8a0105 vectorlib: 16 år sedan
e_intersect.c 05322be998 PG topo support major update 12 år sedan
e_intersect.h 11cd111cbd Vlib: Vect_line_buffe2(), Vect_area_buffer2(), Vect_point_buffer2() and 16 år sedan
field.c a0258a1690 vlib: Vect_map_del_dblink(): -1 to delete all dblinks 12 år sedan
find.c 46cd09da20 Vlib: update for changed fn defs 13 år sedan
geos.c 382f777bf3 fix r56095: do NOT store vector backward version info one place 12 år sedan
graph.c 19c13ce399 update headers, revert https://trac.osgeo.org/grass/changeset/37860 14 år sedan
handler.c 5bcb75e3b6 vlib: free allocated string in error_handler_io() 13 år sedan
header.c 8fa64ef176 vlib: Vect_open_tmp_new() implemented 12 år sedan
header_finfo.c e73e0d2332 vlib(pg): Vect_get_finfo_geometry_type() reports 3D for coord_dimension == 3 12 år sedan
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 år sedan
init_head.c 8fa64ef176 vlib: Vect_open_tmp_new() implemented 12 år sedan
intersect.c 945247d698 Vlib: fix Vect_segment_intersection() 12 år sedan
legal_vname.c 22e3e2d77b replace GR_FATAL_* (rasters), GV_FATAL_* (vectors) by G_FATAL_* 13 år sedan
level.c 1ae866496c vlib: unify \file doxygen instruction (cosmetics) 14 år sedan
level_two.c 6161703763 vlib(pg): add_line_to_topo_pg() and delete_line_from_topo_pg() added 12 år sedan
line.c 09b7db1dd9 doxygen errors fixed 13 år sedan
list.c e70a921252 change boxlist_add args 13 år sedan
local_proto.h 2e7adedc5c vlib(pg): speed up Vect_get_area|isle_points() for PostGIS Topology 12 år sedan
map.c 1f8de160fb Vlib: fix https://trac.osgeo.org/grass/changeset/55401, windows can not delete files that are open, we have fixed that problem here before 12 år sedan
merge_lines.c 4d0f88dfb8 Vlib: simplify code 12 år sedan
net.c 2cf206bf98 Vlib: avoid compiler warning 12 år sedan
open.c 2392871e4d Vlib: fix 3D info 12 år sedan
open_nat.c 382f777bf3 fix r56095: do NOT store vector backward version info one place 12 år sedan
open_ogr.c bbbd600dd5 vlib/ogr|pg: remove unused function 12 år sedan
open_pg.c ac6194c549 vlib(pg): implement PG version for Vect_get_area_points() 12 år sedan
overlap.c d855a1780a Vlib: update constraints which are now hidden in struct 13 år sedan
overlay.c 8dd511a034 Vlib overlay: adjust for new topology 12 år sedan
pg_local_proto.h 2e7adedc5c vlib(pg): speed up Vect_get_area|isle_points() for PostGIS Topology 12 år sedan
poly.c 46cd09da20 Vlib: update for changed fn defs 13 år sedan
read.c 955ec9ab4c vlib: add V2__delete_line_topo_nat() 12 år sedan
read_nat.c 382f777bf3 fix r56095: do NOT store vector backward version info one place 12 år sedan
read_ogr.c 0764296ef8 dox: reducing doxygen warnings 13 år sedan
read_pg.c ac6194c549 vlib(pg): implement PG version for Vect_get_area_points() 12 år sedan
read_sfa.c 955ec9ab4c vlib: add V2__delete_line_topo_nat() 12 år sedan
remove_areas.c 765ea55858 Vect_remove_small_areas(): report number of removed areas on standard message level (it's quite important info) 12 år sedan
remove_duplicates.c a7d0d33d3a Vlib: speed up Vect_remove_duplicates 12 år sedan
rewind.c 7c8d5a94b1 vlib: first steps for full PostGIS topology support 13 år sedan
rewind_nat.c 963bdb2b5d vlib: *initial* support for native reading PostGIS data (without OGR library) 13 år sedan
rewind_ogr.c 963bdb2b5d vlib: *initial* support for native reading PostGIS data (without OGR library) 13 år sedan
rewind_pg.c ac6194c549 vlib(pg): implement PG version for Vect_get_area_points() 12 år sedan
rtree_search.c f9b103cf33 Vlib: changed rtree search fn 13 år sedan
select.c fa2e73bd88 vlib: Vect_get_line|area|isle_box() return -1 on error 12 år sedan
simple_features.c 40064fc077 vlib: better doxygen documentation for simple_features.c 13 år sedan
sindex.c d1f6f39e07 Vlib: optimize Vect_select_lines_by_box() 12 år sedan
snap.c 4457f85045 vlib: Vect_snap_lines(): progress messages should be printed on verbosity level 1 12 år sedan
tin.c 1ae866496c vlib: unify \file doxygen instruction (cosmetics) 14 år sedan
type.c a86e5f71ab vlib: fix Vect_option_to_types() for `type=auto` (v.out.ogr) 12 år sedan
window.c 1ae866496c vlib: unify \file doxygen instruction (cosmetics) 14 år sedan
write.c 955ec9ab4c vlib: add V2__delete_line_topo_nat() 12 år sedan
write_nat.c 382f777bf3 fix r56095: do NOT store vector backward version info one place 12 år sedan
write_ogr.c 12c95080e3 vlib: remove V2_open_new_ogr|pg() from public API 12 år sedan
write_pg.c ce8e3c82d3 vlib/pg: faces are exported as 3D polygons (simple features) 12 år sedan
write_sfa.c 1de4c17e37 vlib: implement V2__write_area_ogr() + V2__write_area_sfa() 12 år sedan

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.