[GRASS-dev] [GRASS GIS] #3814: v.buffer: sefault in LL

[GRASS GIS]

#3814: v.buffer: sefault in LL
-------------------------+-------------------------
 Reporter:  neteler      |      Owner:  grass-dev@…
     Type:  defect       |     Status:  new
 Priority:  normal       |  Milestone:  7.8.0
Component:  LibVector    |    Version:  svn-trunk
 Keywords:  v.buffer     |        CPU:  Unspecified
 Platform:  Unspecified  |
-------------------------+-------------------------
 Inspired by an article [1] I tried v.buffer in a EPSG 4326 location:


 {{{
 GRASS 7.7.svn (latlong_wgs84):~ >
 g.region n=90 s=-90 w=-180 e=180 res=1

 v.random output=random100 n=100

 v.buffer input=random100 output=random100_buff distance=0:00:01
 Note: In latitude-longitude coordinate system specify distances in degree
 unit
 Buffering features...
 Segmentation fault (core dumped)
 }}}

 Minimal debugging:
 {{{
 gdb v.buffer
 GNU gdb (GDB) Fedora 8.2-6.fc29
 (gdb) r input=random100 output=random100_buff distance=0:00:01 --o
 ...
 Program received signal SIGSEGV, Segmentation fault.
 0x00007ffff7f71bc4 in Vect_point_buffer2 () from
 /home/mneteler/software/grass77/dist.x86_64-pc-linux-
 gnu/lib/libgrass_vector.7.7.so
 }}}

 Version:
 {{{
 g.version -g
 version=7.7.svn
 date=2019
 revision=r74334M
 build_date=2019-04-02
 build_platform=x86_64-pc-linux-gnu
 build_off_t_size=8
 }}}

 In G76 it also crashes.

 [1] https://spatialthoughts.com/2019/04/05/geodesic-buffers-in-qgis/

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3814>
GRASS GIS <https://grass.osgeo.org>