[maplab-users] mapedit preview map returns internal server error

[Zak James]

Bryan,

Can you post the MrSID layer from the saved mapfile to the list?

zak

On 8/1/06, Jeff McKenna <jmckenna at dmsolutions.ca> wrote:
> MapServer uses GDAL for raster support, so yes tifs and mrsid images are
> handled by GDAL.
>
> However I can't explain your problems.  I see that you are on Windows -
> I know that MS4W was recently modified to included mrsid support by
> default.  But I have not played with MrSID files in MapLab.
>
> MapLab was built so long ago, long before virtual spatial support was
> added to OGR (ovf files), so I'm not surprised that there might be
> problems with those files in MapLab.
>
> You might have to live with this 'quirkiness' for now.  Unless someone
> else sees a solution?
>
> jeff
>
>
>
>
> Bryan Keith wrote:
> > Thanks, Jeff.  Previously I wrote that I had 3 shapefiles and a tiff.
> > That was wrong.  I have 3 shapefiles and a sid image.  I removed the
> > sid, and then "preview map" worked fine.  Then I added the sid back in,
> > and "preview map" still worked fine.  Hmm.  The map files are identical
> > again.  I opened the original mapfile, and I got the error.  I opened
> > the new map file, and I also got the error.  I removed the sid, and
> > "preview" map worked again.  Back where I started, and I can reproduce
> > the problem (remove the sid, everything works...).  Does this
> > information help locate the problem?
> >
> > Does MapLab (and MapServer) use GDAL for tiffs?  I assume it uses GDAL
> > for sids.  I'm wondering if GDAL/OGR are working correctly with MapLab.
> >  When I built the map file, I used an OGRCONNECTION to plot points from
> > an ovf (VRT) file.  I had problems with that mapfile and converted the
> > ovf to a shapefile in a quick attempt to get things working.  Again, the
> > problem wasn't with the mapfile and the ogrconnection (shp2img worked)
> > but apparently with "preview map" in MapEdit and the ogr connection
> > (though I should do more testing to confirm this).  I'm planning on
> > replacing the shapefile with the ovf.  In the meantime if this sounds
> > familiar to anyone, let me know.
> >
> > I hope all this is clear.
> >
> > Bryan
> >
> > Jeff McKenna wrote:
> >> hmm, could you try removing layers to make the mapfile even simpler
> >> and still throw the error?  And then possibly attach that single-layer
> >> mapfile to an email sent back to this list so all can see.
> >>
> >> jeff
> >>
> >>
> >>
> >>
> >> Bryan Keith wrote:
> >>> Hello,
> >>>
> >>> I installed ms4w and maplab on a windows 2000 machine and
> >>> successfully made and deployed a simple mapping application on our
> >>> intranet.
> >>>
> >>> Now I can go to MapEdit and open the map file.  When I try to
> >>> "Preview Map", I get an "unhandled win32 exception occurred in
> >>> php.exe" and "internal server error".  "Preview Map" worked fine
> >>> while I was building the map file before deploying with the GMap
> >>> Factory.  It's the same map file that's used in the deployed
> >>> application that continues to work. Also, that map file returns a
> >>> good image using shp2img.  Also, "preview map" still works with the
> >>> tutorial map file.  The problem map file is quite simple: 3
> >>> shapefiles and a tiff.
> >>>
> >>> Anyone know what's going on here?  If you need more information to
> >>> help figure out the problem, please let me know.  Thank you.
> >>>
> >>> Bryan
> >>>
> >>> Bryan Keith
> >>> GIS Specialist
> >>> Geomega, Inc.
> >>> Boulder, CO, USA
> >>
>
>
>
> --
> Jeff McKenna
> DM Solutions Group Inc.
> http://www.dmsolutions.ca
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>


-- 
Zak James
Applications and Software Development
DM Solutions Group Inc.
http://www.dmsolutions.ca