Details Ticket 1041


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Serial Number 1041
Subject datum error while building new location
Area bug
Queue grass
Requestors otto.dassau@gmx.de
Owner none
Status resolved
Last User Contact Thu May 9 13:51:02 2002 (6 yr ago)
Current Priority 70
Final Priority 70
Due No date assigned
Last Action Tue May 21 02:36:05 2002 (6 yr ago)
Created Thu May 9 12:18:10 2002 (6 yr ago)

Transaction History Ticket 1041


Thu, May 9 2002 12:18:10    Request created by guest  
Subject: datum error while building new location  

Platform: GNU/Linux/i386
grass obtained from: Trento Italy site
grass binary for platform: Compiled from Sources
GRASS Version: cvs_snapshot_exp_2002_05_03

I tried to build a german Gauß-Krüger Location with datum
specification (normally this works fine..)

[...] 
> map datum for this location?(y/n) [n] y  -> this skipped the whole projection
part and jumped
				     directly into the 'region display' ,  so I used 
> g.setproj afterwards:
Please specify projection name  >tmerc :
Please specify ellipsoid name    >bessel :
Do you want to specify a map datum for this location?(y/n) [n] y

-> Speicherzugriffsfehler (memory access error ?).

The same problem appears for UTM , .... 

regards
Otto Dassau
Thu, May 9 2002 12:29:08    Mail sent by neteler@itc.it  
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Date Thu, 9 May 2002 12:29:05 +0200
From Markus Neteler <neteler@itc.it>
To Request Tracker <grass-bugs@intevation.de>
Cc grass5@grass.itc.it
Subject Re: [GRASS5] [bug #1041] (grass) datum error while building new location
Message-ID <20020509122905.E9342@itc.it>
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In-Reply-To <20020509101810.9D45013A1B@lists.intevation.de>; from grass-bugs@intevation.de on Thu, May 09, 2002 at 12:18:10PM +0200
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On Thu, May 09, 2002 at 12:18:10PM +0200, Request Tracker wrote:
> this bug's URL: http://intevation.de/rt/webrt?serial_num=1041
> -------------------------------------------------------------------------
> 
> Subject: datum error while building new location  
> 
> Platform: GNU/Linux/i386
> grass obtained from: Trento Italy site
> grass binary for platform: Compiled from Sources
> GRASS Version: cvs_snapshot_exp_2002_05_03
> 
> I tried to build a german Gauß-Krüger Location with datum
> specification (normally this works fine..)
> 
> [...] 
> > map datum for this location?(y/n) [n] y  -> this skipped the whole projection
part and jumped
> 				     directly into the 'region display' ,  so I used 
> > g.setproj afterwards:
> Please specify projection name  >tmerc :
> Please specify ellipsoid name    >bessel :
> Do you want to specify a map datum for this location?(y/n) [n] y
> 
> -> Speicherzugriffsfehler (memory access error ?).
> 
> The same problem appears for UTM , .... 
> 
> regards
> Otto Dassau

Thanks for the bug report.
Just tested here (current HEAD) - it also crashes for me.

It seems that the recent upgrade of the PROJ4 (before creating
the release branch) removed some working code.

To avoid that the pre4 release is endangered, I suggest to revert the
PROJ4 update in the release branch (so no NAD support for pre4)
unless the fix is easy to do.

Markus


Thu, May 9 2002 13:45:16    Priority changed to 70 by mneteler  
Thu, May 9 2002 13:51:02    Mail sent by glynn.clements@virgin.net  
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From Glynn Clements <glynn.clements@virgin.net>
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Message-ID <15578.25169.42481.156189@cerise.nosuchdomain.co.uk>
Date Thu, 9 May 2002 12:49:37 +0100
To Markus Neteler <neteler@itc.it>
Cc Request Tracker <grass-bugs@intevation.de>, grass5@grass.itc.it
Subject Re: [GRASS5] [bug #1041] (grass) datum error while building new location
In-Reply-To <20020509122905.E9342@itc.it>
References <20020509101810.9D45013A1B@lists.intevation.de> <20020509122905.E9342@itc.it>
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Markus Neteler wrote:

> > Subject: datum error while building new location =20
> >=20
> > Platform: GNU/Linux/i386
> > grass obtained from: Trento Italy site
> > grass binary for platform: Compiled from Sources
> > GRASS Version: cvs_snapshot_exp_2002_05_03
> >=20
> > I tried to build a german Gau=DF-Kr=FCger Location with datum
> > specification (normally this works fine..)
> >=20
> > [...]=20
> > > map datum for this location?(y/n) [n] y  -> this skipped the whol=
e projection part and jumped
> > =09=09=09=09     directly into the 'region display' ,  so I used=20=

> > > g.setproj afterwards:
> > Please specify projection name  >tmerc :
> > Please specify ellipsoid name    >bessel :
> > Do you want to specify a map datum for this location?(y/n) [n] y
> >=20
> > -> Speicherzugriffsfehler (memory access error ?).
> >=20
> > The same problem appears for UTM , ....=20
> >=20
> > regards
> > Otto Dassau
>=20
> Thanks for the bug report.
> Just tested here (current HEAD) - it also crashes for me.

Same here.

> It seems that the recent upgrade of the PROJ4 (before creating
> the release branch) removed some working code.

Who said anything about PROJ4?

This is due to my changes to the datum handling, when it was moved
from libcoorcnv to libgis:

=09Working file: src/libes/gis/datum.c
=09----------------------------
=09revision 1.1
=09date: 2002/04/12 14:09:32;  author: glynn;  state: Exp;
=09Move datum table code (and datum.table) from libcoorcnv to libgis
=09Tidy datum table code

I've committed a fix (to both head and release branch).

--=20
Glynn Clements <glynn.clements@virgin.net>


Thu, May 9 2002 15:28:51    Mail sent by otto.dassau@gmx.de  
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Date Thu, 09 May 2002 15:44:37 +0200
From Otto Dassau <otto.dassau@gmx.de>
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To Glynn Clements <glynn.clements@virgin.net>, Request Tracker <grass-bugs@intevation.de>, grass5@grass.itc.it
Subject Re: [GRASS5] [bug #1041] (grass) datum error while building new location
References <20020509101810.9D45013A1B@lists.intevation.de> <20020509122905.E9342@itc.it> <15578.25169.42481.156189@cerise.nosuchdomain.co.uk>
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Glynn Clements wrote:

> I've committed a fix (to both head and release branch).
> 

It's working again - thanks a lot !!

Otto Dassau


Tue, May 21 2002 02:36:05    Status changed to resolved by gclements  
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