Mon, Jul 24 2006
15:21:19
|
|
Request created by guest
|
|
Subject: g.proj -p segfaults because of missing datum name
Platform: GNU/Linux/x86
grass obtained from: CVS
grass binary for platform: Compiled from Sources
GRASS Version: cvs_head_20060724
Trying to use the "Use georeferenced file" for new location definition in the
start-up screen I get a segfault.
Searching for the cause, I find that it's in the call to g.proj, as calling g.proj
-p on the file gives the following:
> g.proj -p UrbAdm_Mu.shp
Trying to open with GDAL...ERROR 4: `UrbAdm_Mu.shp' not recognised as a supported
file format.
Trying to open with OGR......succeeded.
WARNING: Datum 'unnamed' not recognised by GRASS and no parameters found.
Datum transformation will not be possible using this projection
information.
Segmentation fault
The warning comes from GPJ_osr_to_grass() which is in lib/proj/convert.c. I don't
know why it segfaults, though.
Do we absolutely need a datum name as the information contained in the .prj file
seems to be sufficient to create a location ?
ogrinfo gives the following on the file:
$ ogrinfo -so UrbAdm_Mu.shp UrbAdm_Mu
INFO: Open of `UrbAdm_Mu.shp'
using driver `ESRI Shapefile' successful.
Layer name: UrbAdm_Mu
Geometry: Polygon
Feature Count: 19
Extent: (141192.712000, 161464.403000) - (158005.472000, 178169.335000)
Layer SRS WKT:
PROJCS["Belge 1972 / Belgian Lambert 72",
GEOGCS["unnamed",
DATUM["unnamed",
SPHEROID["International_1924",6378388,297.0000000000601]],
PRIMEM["Greenwich",0],
UNIT["Degree",0.017453292519943295]],
PROJECTION["Lambert_Conformal_Conic_2SP"],
PARAMETER["standard_parallel_1",51.16666723333333],
PARAMETER["standard_parallel_2",49.8333339],
PARAMETER["latitude_of_origin",90],
PARAMETER["central_meridian",4.367486666666666],
PARAMETER["false_easting",150000.013],
PARAMETER["false_northing",5400088.438],
UNIT["Meter",1]]
MUID: Real (20.0)
POLID: Real (20.0)
REID: Real (20.0)
MUNC: String (5.0)
MU3C: String (3.0)
MUDN: String (24.0)
MUDNIN: String (2.0)
MUFN: String (24.0)
MUFNIN: String (2.0)
Moritz |
|
Mon, Jul 24 2006
15:52:19
|
|
Mail sent by mlennert@club.worldonline.be
|
|
Return-Path |
<mlennert@club.worldonline.be>
|
Delivered-To |
grass-bugs@lists.intevation.de
|
Message-ID |
<44C4D08E.5090906@club.worldonline.be>
|
Date |
Mon, 24 Jul 2006 15:52:14 +0200
|
From |
Moritz Lennert <mlennert@club.worldonline.be>
|
User-Agent |
Thunderbird 1.5.0.2 (X11/20060516)
|
MIME-Version |
1.0
|
To |
Request Tracker <grass-bugs@intevation.de>
|
Cc |
grass-dev@grass.itc.it
|
Subject |
Re: [GRASS-dev] [bug #4898] (grass) g.proj -p segfaults because of missing datum name
|
References |
<20060724132119.341ED1005B8@lists.intevation.de>
|
In-Reply-To |
<20060724132119.341ED1005B8@lists.intevation.de>
|
Content-Type |
text/plain; charset=ISO-8859-1; format=flowed
|
Content-Transfer-Encoding |
7bit
|
X-Virus-Scanned |
by amavisd-new at intevation.de
|
X-Spam-Status |
No, hits=-3.469 tagged_above=-999 required=3 tests=[AWL=1.531, BAYES_00=-5]
|
X-Spam-Level |
|
Request Tracker wrote:
> this bug's URL: http://intevation.de/rt/webrt?serial_num=4898
> -------------------------------------------------------------------------
>
> Subject: g.proj -p segfaults because of missing datum name
>
> Platform: GNU/Linux/x86
> grass obtained from: CVS
> grass binary for platform: Compiled from Sources
> GRASS Version: cvs_head_20060724
>
> Trying to use the "Use georeferenced file" for new location definition in the
start-up screen I get a segfault.
> Searching for the cause, I find that it's in the call to g.proj, as calling
g.proj -p on the file gives the following:
>
>> g.proj -p UrbAdm_Mu.shp
> Trying to open with GDAL...ERROR 4: `UrbAdm_Mu.shp' not recognised as a supported
file format.
>
> Trying to open with OGR......succeeded.
> WARNING: Datum 'unnamed' not recognised by GRASS and no parameters found.
> Datum transformation will not be possible using this projection
> information.
> Segmentation fault
>
> The warning comes from GPJ_osr_to_grass() which is in lib/proj/convert.c. I
don't know why it segfaults, though.
>
> Do we absolutely need a datum name as the information contained in the .prj
file seems to be sufficient to create a location ?
>
I tried introducing the datum name into the prj file and now I get:
A datum name bel72 (Reseau_National_Belge_1972) was specified without
transformation parameters.
Note that the GRASS default for bel72 is
towgs84=-99.1,53.3,-112.5,0.419,-0.830,1.885,-1.00.
Segmentation fault
Moritz
|
|
Mon, Jul 24 2006
16:07:46
|
|
Mail sent by guest
|
|
Hello Moritz
The problem was in fact related to opening a file with OGR (nothing
datum-related). I think there was excessive freeing of memory going on and
have fixed it now - please test.
Paul
|
|
Mon, Jul 24 2006
16:21:45
|
|
Comments added by pkelly
|
|
P.S. Thanks for the bug report! |
|
Mon, Jul 24 2006
16:51:18
|
|
Mail sent by mlennert@club.worldonline.be
|
|
Return-Path |
<mlennert@club.worldonline.be>
|
Delivered-To |
grass-bugs@lists.intevation.de
|
Message-ID |
<44C4DE71.8080103@club.worldonline.be>
|
Date |
Mon, 24 Jul 2006 16:51:29 +0200
|
From |
Moritz Lennert <mlennert@club.worldonline.be>
|
User-Agent |
Thunderbird 1.5.0.2 (X11/20060516)
|
MIME-Version |
1.0
|
To |
guest user via RT <grass-bugs@intevation.de>
|
Cc |
grass-dev@grass.itc.it
|
Subject |
Re: [GRASS-dev] [bug #4898] (grass) g.proj -p segfaults
|
References |
<20060724140746.0D5421005C5@lists.intevation.de>
|
In-Reply-To |
<20060724140746.0D5421005C5@lists.intevation.de>
|
Content-Type |
text/plain; charset=ISO-8859-1; format=flowed
|
Content-Transfer-Encoding |
7bit
|
X-Virus-Scanned |
by amavisd-new at intevation.de
|
X-Spam-Status |
No, hits=-3.546 tagged_above=-999 required=3 tests=[AWL=1.454, BAYES_00=-5]
|
X-Spam-Level |
|
guest user via RT wrote:
> Hello Moritz
> The problem was in fact related to opening a file with OGR (nothing
> datum-related). I think there was excessive freeing of memory going on and
> have fixed it now - please test.
Yes, now it works ! Thanks.
Moritz
>
> Paul
>
>
> -------------------------------------------- Managed by Request Tracker
>
> _______________________________________________
> grass-dev mailing list
> grass-dev@grass.itc.it
> http://grass.itc.it/mailman/listinfo/grass-dev
|
|
Mon, Jul 24 2006
17:25:37
|
|
Status changed to resolved by msieczka
|
|
Mon, Jul 24 2006
17:25:37
|
|
Mail sent by msieczka
|
|
|