[GRASS-dev] building partial topolgy

[Jáchym Čepický]

Hallo,
I do not understand the usage of V_build_partial() & co. completely.

I would like to build only necessary part of topology for future
coordinates or bbox selections
(Vect_find_line, Vect_select_lines_by_box)

I have no clue, how to do it.
        Vect_save_spatial_index(&Map);
        Vect_build_partial(&Map, GV_BUILD_BASE,output);
seems not to be sufficiened.

Idea is to have something like this working:

g.copy vect=roads,tmp --o
v.edit map=tmp tool=move move=1000,000
bbox=593468.0625,4920437.625,598598.375,4939185.5 -t
# v.build tmp
v.edit map=tmp tool=move move=1000,000
bbox=593468.0625,4920437.625,598598.375,4939185.5 -t

thanks

jachym
-- 
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
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