Help with rasters

[Bart van den Eijnden (OSGIS)]

Yep, look especially at creating overviews using gdaladdo.

http://mapserver.gis.umn.edu/docs/howto/raster_data

Btw, jpg is not the best format, tiff would be a better option, but I 
guess you can't change that.

Best regards,
Bart

Jeff Dege schreef:
> Yep. That did it. I know have an image of the full extent of the map.
>
> Only problem is that it took ten minutes to generate.
>
> Next?  Read up on optimization and tuning of raster maps.
>
> Thanks for the help.
>
>
>   
>> -----Original Message-----
>> From: Bart van den Eijnden (OSGIS) [mailto:bartvde at osgis.nl] 
>> Sent: Friday, October 20, 2006 11:49 AM
>> To: Jeff Dege
>> Cc: MAPSERVER-USERS at LISTS.UMN.EDU
>> Subject: Re: [UMN_MAPSERVER-USERS] Help with rasters
>>
>> First of all, change:
>>
>> DATA "rasterindex"
>>
>> into:
>>
>> TILEINDEX "rasterindex"
>>
>> Best regards,
>> Bart
>>
>> Jeff Dege schreef:
>>     
>>> A customer has sent us a bunch of mapdata, to see if we can make any
>>> sense from it.  I've been messing around with mapserver for a while,
>>> now, and I've figured out how to work some of its 
>>>       
>> capabilities, but this
>>     
>>> is my first attempt to handle rasters.
>>>
>>> The data set has four sets of shape files, three of which are
>>> point/line/polygon data and the fourth which seems to be a 
>>>       
>> tileindex for
>>     
>>> the thousands of jpg and jgw files.
>>>
>>> I'm starting simple - writing a map file and trying to get 
>>>       
>> a map image
>>     
>>> using shp2img.  I have no problem doing this with the three
>>> point/line/polygon layers.  But I've not been able to do 
>>>       
>> this with the
>>     
>>> raster data.
>>>
>>> I can run gdalinfo on the jpg files:
>>>
>>>   Driver: JPEG/JPEG JFIF
>>>   Size is 1610, 1609
>>>   Coordinate System is `'
>>>   Origin = (-93.112361,44.933805)
>>>   Pixel Size = (0.00001279,-0.00000900)
>>>   Corner Coordinates:
>>>   Upper Left  ( -93.1123608,  44.9338046)
>>>   Lower Left  ( -93.1123608,  44.9193245)
>>>   Upper Right ( -93.0917678,  44.9338046)
>>>   Lower Right ( -93.0917678,  44.9193245)
>>>   Center      ( -93.1020643,  44.9265646)
>>>   Band 1 Block=1610x1 Type=Byte, ColorInterp=Red
>>>   Band 2 Block=1610x1 Type=Byte, ColorInterp=Green
>>>   Band 3 Block=1610x1 Type=Byte, ColorInterp=Blue
>>>
>>> I can run gdaltindex to create my own tileindex shape file:
>>>
>>>   gdaltindex  \\server\share\test\data\rasterindex
>>> \\server\share\test\data\data\*.jpg
>>>
>>> And I can run ogrinfo on the generated shapefile:
>>>
>>>   INFO: Open of `\\server\share\app\data'
>>>   using driver `ESRI Shapefile' successful.
>>>
>>>   Layer name: rasterindex
>>>   Geometry: Polygon
>>>   Feature Count: 683
>>>   Extent: (-93.338884, 44.455961) - (-92.721094, 44.933805)
>>>   Layer SRS WKT:
>>>   (unknown)
>>>   location: String (255.0)
>>>
>>> But when I run shp2img, I get nada.  With DEBUG=ON:
>>>
>>>   Unable to open file rasterindex for layer A ... ignoring 
>>>       
>> this missing
>>     
>>> data.
>>>   msDrawMap(): Layer 0 (A), 0.000s
>>>   msDrawMap(): Drawing Label Cache, 0.000s
>>>   msDrawMap() total time: 0.000s
>>>
>>> The rastedindex shape files (.dbf, .shp, and .shf) files 
>>>       
>> are in the same
>>     
>>> directories as the other point/line/polygon shape files 
>>>       
>> that I've been
>>     
>>> able to successfully draw layers with using this mapfile.  
>>>       
>> Ogrinfo has
>>     
>>> no trouble accessing the file.
>>>
>>> The underlying .jpg files are in the same directory, and 
>>>       
>> gdalinfo and
>>     
>>> gdaltindex had no trouble opening them.
>>>
>>> The layer in the mapfile itself is pretty simple:
>>>
>>>   LAYER
>>>     NAME "A"
>>>     TYPE RASTER
>>>     STATUS ON
>>>     DATA "rasterindex"
>>>   END
>>>
>>> Any hints as to what I'm doing wrong?
>>>
>>>
>>>   
>>>       
>> -- 
>> Bart van den Eijnden
>> OSGIS, Open Source GIS
>> bartvde at osgis.nl
>> http://www.osgis.nl
>>
>>
>>     
>
>
>   


-- 
Bart van den Eijnden
OSGIS, Open Source GIS
bartvde at osgis.nl
http://www.osgis.nl