[Proj] ntf_r93.gsb file corrupted
jerome at georezo.net
Thu Sep 24 14:31:18 EST 2009
Franck, thanks for these answers.
Fortunalately there are regression tests, quickly regarding source code I
have not seen them !
The "mandatory" term it isn't for maintenance. Updates concerns improvements
or corrections, no damaging ! Damages are on bêta corrections, on trunk
development tree. Release is an implicit declaration that the evolvement are
validated. Releases are not a "gamma version", and my system administrator
says me that update to the newest version is mandatory. I'm heretic if I
don't update my system.
It is principles that I think correct.
I know that no-regression detections are an hard task. But we can't damage a
software, we can also do improvements. Some users trust open source
developpers. If they can't, if an open source software is an always "gamma
software", a task is really never closed, we must say it !
I realize that this mail seems to be a troll, but I only want how I can
trust in open source software, and especially in proj4 library.
If that I think is wrong, so I will know that and I will not be able to
believe a software description :(
----- Original Message -----
From: "Frank Warmerdam" <warmerdam at pobox.com>
To: "PROJ.4 and general Projections Discussions" <proj at lists.maptools.org>
Sent: Thursday, September 24, 2009 8:49 PM
Subject: Re: [Proj] ntf_r93.gsb file corrupted
Cuinet Jérôme wrote:
> A question :
> Are not there some coordinate transformation tests which verifiy the
> calculations ?
> I don't know how often mistakes appears, but this type of tests don't
> to be diificult to construct.
There are regression tests, but they do not include ntf_r93.gsb even now.
I would add the problem corrupted the file in a relatively subtle way that
would only be detected for a grid shift in some places.
In fact I see there is a testIGNF but it was commented out in the past when
it wasn't obvious to determine whether we had the supporting gsb file or
I am updating the Makefile.am to include the testIGNF and testntv2 checks
if the corresponding grid shift files seem to be available. I'll produce a
new beta later today with these changes.
Note these are only run on unix systems.
> A no-regression test could have been mandatory, no ? Some unusual
> might be broken without anybody pick out it.
The word "manditory" has limited application in open source. It is very
that I get paid for any PROJ.4 maintenance, and I'm only doing this because
when I took it on there was no one else willing to do it.
There is certainly room for additional PROJ.4 developers and contributors.
I set the clouds in motion - turn up | Frank Warmerdam,
warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush | Geospatial Programmer for Rent
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