[Fwd: [GRASS-dev] [bug #4906] (grass) d.path segfaults after choosing first node]

[Moritz Lennert]

Hi,

Does anyone have an idea of what might be the problem in below bug ?

I can reproduce it with spearfish data:

v.net input=roads at PERMANENT output=roads operation=nodes alayer=1 
nlayer=2 -c
d.vect roads at user1
d.path map=roads at user1
Building graph:
Registering arcs ...  100%
Flattening the graph ... done.
Graph was built.
L: from  M: to R: quit

pressing the left button gives:

Node 650: 594318.629202 4925368.174169
Erreur de segmentation

I have to present make a presentation of GRASS to colleagues next week, 
which might lead to the department opting for GRASS for classes in the 
future, and it would be great to be able to present the network analysis 
capacities.

I know I can use v.net.path, but this is a more complicated way 
(especially since it doesn't allow mouse-based choice of coordinates), 
so if anyone has an idea it would be very welcome.

Thanks,
Moritz

-------- Original Message --------
Subject: [GRASS-dev] [bug #4906] (grass) d.path segfaults after 
choosing	first node
Date: Wed, 26 Jul 2006 19:50:25 +0200 (CEST)
From: Request Tracker <grass-bugs at intevation.de>
Reply-To: Request Tracker <grass-bugs at intevation.de>
To: grass-dev at grass.itc.it

this bug's URL: http://intevation.de/rt/webrt?serial_num=4906
-------------------------------------------------------------------------

Subject: d.path segfaults after choosing first node

Platform: GNU/Linux/x86
grass obtained from: CVS
grass binary for platform: Compiled from Sources
GRASS Version: cvs_head_20060724

d.path segfaults after chosing the first node.

debug output:

[...]
D3/3: dig_spidx_add_line(): line = 20849
D3/3: dig_spidx_add_line(): line = 20850
D3/3: dig_spidx_add_line(): line = 20851
D3/3: dig_spidx_add_line(): line = 20852
D3/3: Spatial index was built
D3/3: dig_select_nodes()
D3/3:   29 nodes selected
D3/3:  29 nodes in box
D3/3:   nearest node 392 in distance 9.662799
Node 392: 147162.820000 168433.076000
D1/3: box
Erreur de segmentation

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