[Mapserver-users] Re: [maplab-users] Tutorial Raster Layer Using maplab-2.0-dev20030422 Not rendering

[Paul Spencer]

John,

a couple of things.  First, maplab is not yet compatible with mapserver 
37 so I am going to assume (hope) that the rendering issues are related 
to that.

The other questions are more applicable to the mapserver-users mailing 
list so I have copied it on this reply.  I would imagine that Frank 
Warmerdam wrote the piece in the RASTER-HOW-TO since he is the GDAL 
maintainer.

Cheers,

Paul

John Norton wrote:

> After installing maplab-2.0-dev20030422 and running the tutorial project I
> could not get the bath_mapserver.tif layer to render. I noticed that
> INPUT=TIFF is not compiled into mapscript_37 so I went and built a
> tileindex shapefile and then that raster layer rendered with the map.
> Great! But, now I want to build my own map with a RASTER layer. My raster
> file looks like this:
> Driver: GTiff/GeoTIFF
> Size is 11453, 8504
> Coordinate System is `'
> Origin = (-5791247.097672,6903854.269482)
> Pixel Size = (1000.000000,-1000.000000)
> Metadata:
>   TIFFTAG_SOFTWARE=Arc/Info
> Corner Coordinates:
> Upper Left  (-5791247.098, 6903854.269)
> Lower Left  (-5791247.098,-1600145.731)
> Upper Right ( 5661752.902, 6903854.269)
> Lower Right ( 5661752.902,-1600145.731)
> Center      (  -64747.098, 2651854.269)
> Band 1 Block=11453x1 Type=Byte, ColorInterp=Red
>   Min=0.000/0, Max=255.000/0, Computed Min/Max=0.000,250.000
> Band 2 Block=11453x1 Type=Byte, ColorInterp=Green
>   Min=0.000/0, Max=255.000/0, Computed Min/Max=0.000,250.000
> Band 3 Block=11453x1 Type=Byte, ColorInterp=Blue
>   Min=0.000/0, Max=255.000/0, Computed Min/Max=0.000,250.000
> 
> World File is:
>                 1000.00000000000000
>                    0.00000000000000
>                    0.00000000000000
>                -1000.00000000000000
>             -5791247.09767184130000
>              6903854.26948160120000
> 
> I ran gdaltindex on this tiff file and got the tile shape file and
> installed it into my map file just as I did with the tutorial image. Just
> one tile (for now). The raster layer does not render at all! My map file is
> using this for EXTENT -5791247.098 -1600145.731 5661752.902 6903854.269.
> First thing I check for such problems. Maplab does not generate any errors.
> This is my first time using INPUT=GDAL with Mapscript. I have used GeoTiffs
> quite a bit with the mapserv CGI and have had no problems. In fact I loaded
> some of those .map files into maplab and I could not get the raster layers
> to render either. I have looked under every rock, I think, on the docs,
> especially the RASTER-HOW-TO. I would imagine whoever wrote this...
>                                                                             
>                                                                             
>                                                                             
>      Eventually I should add some general information on how to             
>      preprocess raster data for optimal use in MapServer, and give          
>      specific information on how to use GDAL's rgb2pct.py, gdaladdo and     
>      gdal_translate to converting stuff into pseudocolored, tiled GeoTIFF   
>      files with overviews.                                                  
>                                                                             
>                                                                             
>                                                                             
> 
> 
> Probably has some incite for this. I am running Windoze 2K with Apache 2.
> Can anyone make suggestions on:
> 1. Why is my raster layer not rendering?
> 2. How can I break a large GeoTiff with wld file into smaller ones with wld
> files? Are the wld files required?
> 3. How can I build a colormap into a GeoTiff to improve performance?
> 
> Cheers
> ------------------------------------------------------
> John Norton
> USDA-RSAC
> 2222 W 2300 S
> Salt Lake City, UT 84119
> Phone: 801-975-3766
> Fax: 801-975-3478
> Intranet: fsweb.rsac.fs.fed.us
> Internet: www.fs.fed.us/eng/rsac/
> ------------------------------------------------------
> 
> 
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> 

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