[Mapserver-users] Nothing raster (tiff,jpeg) comes out

[Siki Zoltan]

Hi Zainal, 

On Mon, 4 Aug 2003, zainal A Majeed wrote:

> I appreciate your response. I have checked again everything as you suggested.
> It does support raster as I tried the raster image in mapserver tutorial all 
> this while. 
> I am using .tiff and convert to .img after image proceesing then to .jpg. I 
> don’t need World file for the time being.

If you don't have gdal installed you can use only 256 colors!
Convert your image to 256 color palette if it has more colors.

I have never used images without world file, I think you must have
world file or geotiff.
The world file is an ascii file you can easy create it. A world file
consist of 6 lines, each line contains a single value.
1st line: pixel size in x direction in meters (or foot or ...)
2nd line: 0 if the coordinate system paralel to the image
3rd line: 0 if the coordinate system paralel to the image
4th line: -pixel size in y direction in meter (negativ value)
5th line: easting for upper left corner
6th line: northing for upper left corner
What extents do you specify in the map file without a world file?

> The status is ON and when display in IE I can right click to copy to wall 
> paper or desktop background but it’s invisible (white image).
Yeh, you got an empty image from the mapserver.

Do you have a html template? If yes, then you can can check mapext cgi
variable inserting [mapext] somewhere in the html code.

Have you read raster-howto?
Visit the galery to get idea.
Finally insert your map and template file into your mail.

Hi
Zoltan

> 
> 
> >===== Original Message From Siki Zoltan <siki at bme-geod.agt.bme.hu> =====
> >Dear Zainal,
> >
> >You gave us few details, so I can make only suggestions.
> >
> >Does mapserver support the used raster format?
> >Check mapserv -v
> >
> >Do you have world file along with your raster image?
> >If you have GeoTiff no need for world file.
> >See Raster howto at mapserver.gis.umn.edu/doc36/raster-howto.html
> >
> >What is the status of the layer?
> >If it is ON then you will see it if you specify the layer name in the
> >query string e.g.
> >www.somewhere/cgi-bin/mapserv?map=your_map_file&layer=layer_name
> >
> >Does the extent of the map and the raster fits?
> >
> >If these don't help give us more information.
> >
> >Hi,
> >Zoltan Siki
> >
> >On Fri, 18 Jul 2003, zainal A Majeed wrote:
> >
> >> Dear friends,
> >>
> >> I hope this is not a repetition. I try to map out with mapsever raster 
> aerial
> >> photo from map file. The connection to mapserver was alright but nothing 
> comes
> >> out in view except white window(there is an image but white - can't see).
> >> Can anybody tell what is the problem?
> >>
> >> Thanks and cheers
> >>
> >> Zainal
> >>
> >> ZAINAL A MAJEED
> >> PhD in Web Technology and Internet GIS
> >> School of Civil Engineering and Geosciences
> >> Bedson BUilding, University of Newcastle upon Tyne
> >> Newcastle upon-Tyne NE1 7RU
> >> United Kingdom
> >>
> >> Tel: +44 (0)191 222 6357
> >> Fax: +44 (0)191 222 8691
> >> email: zainal.abdul-majeed at ncl.ac.uk
> >> web: http://www.cegs.ncl.ac.uk
> >> web: http://geomatics.ncl.ac.uk
> >> *************************************
> >> Home:
> >> 178 Dilston Road,
> >> Newcastle Upon Tyne NE4 5AD
> >> United Kingdom
> >> Phone  : +44 (0) 191-2727259
> >> Mobile : +44 (0) 796-0938952
> >>
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> >>
>