[GRASS-user] Limits of v.digit

GRASS GRASS user
1

Hello grass users group

Importing en big dxf-file into grass with the result of a grass vector-file with 420779 nodes and 366026 primitives

(I want to make take-off areas for houses, streets etc. for the city suwer-system)
v.digit becomes very slow and crashed.

What is (are) the limits of v.digit?
Is inserting more ram-memory the solution or is cutting the map in smaller parts a better option?

Joop Goedbloed

Nederland

2

Hi,

2008/4/26 Joop Goedbloed <jlgoedbloed@hetnet.nl>:

Importing en big dxf-file into grass with the result of a grass vector-file
with 420779 nodes and 366026 primitives

(I want to make take-off areas for houses, streets etc. for the city
suwer-system)
v.digit becomes very slow and crashed.

BTW, it would be interesting to compare v.digit and vector digitizer
in wxGUI [1]. I have created vector point layer (v.random) with 3e5
points, loading such layer in wxGUI took on my computer 141s. Editing
was quite slow but possible.

With v.digit (tcl/tk) loading the layer took ~180s.

What is (are) the limits of v.digit?

Not sure here.

Is inserting more ram-memory the solution or is cutting the map in smaller
parts a better option?

In this case cutting the vector map in smaller parts would be solution.

Martin

[1] http://grass.osgeo.org/wiki/WxPython-based_GUI_for_GRASS#Vector_digitizer

--
Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa *

3

Hi,

2008/4/29 Joop Goedbloed <jlgoedbloed@hetnet.nl>:

Very interesting development with wgpython GUI
I am using SUSE linux 10.2 with grass6.3
There ar rpm's of WgPyton on the suse site.
Is ther already an distribution of the grass modules with the wgGUI?

wxGUI is part of GRASS distribution >= 6.3.0RC5. Just start grass with
-wxpython switch. For running the GUI you need to have wxPython >=
2.8.1.1. Compiling wxGUI vector digitizer component is still a bit
tricky/ugly, see

http://svn.osgeo.org/grass/grass/branches/develbranch_6/gui/wxpython/README

-> '7 - DIGITIZATION TOOL'.

Martin
--
Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa *