[Mapserver-users] bizarre raster output

[Pericles Nacionales]

No worries, Charlton.  Glad to help.

-Perry

On Mon, 2 Feb 2004, Charlton Purvis wrote:

> Perry:
>
> Again, thanks so much for the help and whipping up your test run.  I
> just upgraded gdal to 1.1.9, and all seems well.
>
> Charlton
>
> > -----Original Message-----
> > From: Pericles Nacionales [mailto:nacional at cbs.umn.edu]
> > Sent: Thursday, January 29, 2004 7:16 PM
> > To: Charlton Purvis
> > Cc: mapserver-users at lists.gis.umn.edu; Brock Murch; Jeremy Cothran
> > Subject: Re: [Mapserver-users] bizarre raster output
> >
> > Charlton,
> >
> > Check http://hypnos.cbs.umn.edu/projects/gdal_segfault.html.  Is this
> what
> > it's supposed to look like?  I'm running MapServer 4.0.1 but compiled
> gdal
> > from cvs just a couple days ago.  PNG support was compiled using
> external
> > libpng version 1.2.5.
> >
> > You might want to upgrade your libpng.
> >
> > -Perry N.
> >
> >
> > On Thu, 29 Jan 2004, Charlton Purvis wrote:
> >
> > > Hi, folks:
> > >
> > > I've got a raster .png, 8800 x 6600, complete w/ a working .wld.
> The
> > > original raster has some color on the left side, and the rest of the
> > > image is transparent.
> > >
> > > I expected to see the Pacific covered by this raster and the rest of
> the
> > > Eastern part left alone.  But the attached image is what I get.
> > > Bizarre.  Is there a max pixel image size?  The entire PNG is a mere
> > > 2MB.
> > >
> > > Anyone seen anything like this?  It's purty, but it ain't gunna cut
> it.
> > >
> > > MapServer version 4.0 OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
> SUPPORTS=PROJ
> > > SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT
> INPUT=EPPL7
> > > INPUT=JPEG INPUT=POSTGIS INPUT=GDAL INPUT=SHAPEFILE
> > >
> > > gdal-1.1.8 (plain ./configure)
> > >
> > >   EXTENT -125 -5 -45 55
> > >   SIZE 880 660
> > >   IMAGETYPE PNG  # I've also tried RGBA w/ TRANSPARENCY ON
> > >
> > > The PROJECTIONs are the same.  Also tried stripping out everything
> > > (including projections) but the raster layer.  Same results.
> > >
> > > Aha!  I just ran a gdalinfo, and I get a seg fault.  Anyone mind
> > > checking it out?  Original raster (non-transparent) is here:
> > > http://nautilus.baruch.sc.edu/~cpurvis/.
> > >
> > > I don't think the file is corrupt since it displays OK in Photoshop,
> and
> > > ImageMagick is OK w/ it, too.
> > >
> > > Thanks,
> > >
> > > Charlton
> > >
> > >
> > >
> > >
> > > Charlton Purvis
> > > (803) 777-8858 : voice
> > > (803) 777-3935 : fax
> > > cpurvis at sc.edu
> > >
> > > Baruch Institute
> > > University of South Carolina
> > > Columbia, SC 29208
> > >
> > >
>