Display Arc/INFO Binary Grid does not work correctly?

[Tyler Mitchell]

Hi, I think Bart's suggestion of using Gix exporter (on sourceforge.net) would be a great idea for this.
I've used it myself for this purpose.

Tyler

----- Original Message -----
From: Wolfgang Qual <Wolfgang.Qual at muenchen.de>
Date: Wednesday, May 25, 2005 5:29 am
Subject: Re: [UMN_MAPSERVER-USERS] Display Arc/INFO Binary Grid does not work correctly?

> Hello Tyler,
> I was able to assign color definitions to the mapfile by adding 
> this to 
> the mapfile
> "CLASSITEM "[pixel]"
>             CLASS
>                     EXPRESSION ([pixel]< 1700)
>                     COLOR 215 15 215        
>             END"
> 
> However, I wonder, if this is the best way to do it. My problem is 
> that 
> I do have color definitions in ArcView (avl-legend), but I do not 
> know 
> how to put this information into the mapfile - is there a way to 
> do it 
> (something like a color lookup table)?
> 
> Thanks again.
> 
> Wolfgang
> 
> --
> 
> Tyler Mitchell schrieb:
> 
> > Hi Wolfgang,
> > Do you need to keep the data in GRID format?
> > I have had coloured tiff images that 'lost' the colours.  
> Someone introduced me to the pct2rgb.py Python script (part of 
> FWTools) that solved the problem, but I was converting TIFF->TIFF 
> and don't know how (or if) this could work with GRIDs.  It looks 
> to me like the colour info. may be lost already though, since no 
> colours are listed from gdalinfo.  Hmm...I'm beyond my expertise here.
> > 
> > Hope that might help.
> > Tyler
> > 
> > ----- Original Message -----
> > From: Wolfgang Qual <Wolfgang.Qual at MUENCHEN.DE>
> > Date: Tuesday, May 24, 2005 8:54 am
> > Subject: [UMN_MAPSERVER-USERS] Display Arc/INFO Binary Grid does 
> not work correctly?
> > 
> > 
> >>Hello again, list.
> >>I just created another map, just to test whether I am able to put
> >>Arc/INFO GRIDs on the mapserver. However, all I get is a black 
> picture>>(colour information seems to be lost)
> >>-->
> >>http://dream.lrrl.arch.tu-muenchen.de/cgi-
> >>bin/M3.cgi?&map=rastertest.dfo.map
> >>The mapserver is compiled with gdal-support, gdalinfo on the 
> >>rasterfileproduces this information:
> >>
> >>wqual at dream:/data/fis/klima/therm_98/grid> gdalinfo ab82s_grd/
> >>Driver: AIG/Arc/Info Binary Grid
> >>Size is 6080, 5520
> >>Coordinate System is `'
> >>Origin = (4449996.875000,5352003.125000)
> >>Pixel Size = (6.25000000,-6.25000000)
> >>Corner Coordinates:
> >>Upper Left  ( 4449996.875, 5352003.125)
> >>Lower Left  ( 4449996.875, 5317503.125)
> >>Upper Right ( 4487996.875, 5352003.125)
> >>Lower Right ( 4487996.875, 5317503.125)
> >>Center      ( 4468996.875, 5334753.125)
> >>Band 1 Block=256x4 Type=Byte, ColorInterp=Undefined
> >>  Min=1.000 Max=30.000
> >>  NoData Value=255
> >>
> >>Is there a way to get the colour-table information into the mapfile?
> >>What is the best way to integrate GRID-files into mapserver-
> maps? 
> >>Do I
> >>need the "info" folder (created by ArcView) on the webserver for
> >>displaying the rasterfile correctly?
> >>
> >>Thanks again.
> >>
> >>Wolfgang
> >>
> >>--
> >>Wolfgang Qual
> >>Landeshauptstadt München
> >>Referat für Gesundheit und Umwelt
> >>RGU-UW 11
> >>Sg. 1 Gesundheits- und Umweltberichterstattung,
> >>Energie und Klimaschutz
> >>Bayerstr. 28a, 80335 München
> >>Tel.: +49 (0)89 233-477 17
> >>Fax.: +49 (0)89 233-477 05
> >>E-Mail: wolfgang.qual at muenchen.de
> >>
> > 
> > 
> 
> -- 
> Wolfgang Qual
> Landeshauptstadt München
> Referat für Gesundheit und Umwelt
> RGU-UW 11
> Sg. 1 Gesundheits- und Umweltberichterstattung,
> Energie und Klimaschutz
> Bayerstr. 28a, 80335 München
> Tel.: +49 (0)89 233-477 17
> Fax.: +49 (0)89 233-477 05
> E-Mail: wolfgang.qual at muenchen.de
>