[ms4w-users] Cannot display raster: MS4W shows white rectangle instead.

[Jeff McKenna]

Kresh,

I would try using the gdalinfo.exe utility with your 'industri.tif'  
file (after you execute setenv.bat first).  Make sure the corner  
coordinates in that gdalinfo response are valid, and then use those  
coordinates for your EXTENT parameter in your mapfile.

(since it is the GDAL library that is used to access rasters in  
MapServer, it's always good to start with the GDAL utilities)

--jeff




---
Jeff McKenna
FOSS4G Consulting and Training Services
http://www.gatewaygeomatics.com/





On 6-Jun-08, at 3:36 AM, kreshna_iceheart at yahoo.com wrote:

> Please help. Please please help. :(
>
> I am using Map Server for windows (ms4w) with MapServer version  
> 4.6.1. I created a simple mapfile to display a TIFF raster image  
> named industri.tif. The TIFF raster image has separated world file  
> named industri.tfw.
>
> The contents of the industri.ftw is as follows:
>      1.000
>      0.000
>      0.000
>     -1.000
> 679316.007
> 9318670.876
>
> Meanwhile, the extent of the mapfile is as follows:
>  EXTENT      679326.0 9317932.0 680607.0 9318665.0
>
> By comparing the two sets of coordinates above (.tfw contents and  
> EXTENT value), I think the raster should display properly, shouldn't  
> it?
>
>
> Also, below is my raster layer definition. There is nothing wrong  
> with it, isn't there?
>  LAYER
>    NAME Industri
>    TYPE RASTER
>    STATUS  ON	
>    DATA "C:\mapfiles\shp\RASTER\industri.tif" # contoh, pakai file  
> world
>    CLASS
>       NAME 'Industri'
>    END
>  END
>
>
> Alas, when I open the map with my browser, the raster does not show.  
> Instead, the page only show a white rectangle (blank rectangle?).  
> Browsing in map mode (&mode=map) does not help either. In fact,  
> browsing in map mode shows a big empty page.
>
> And when I browsed the \temp folder (IMAGEPATH), the resulting JPG  
> file is nothing but white rectangle. The size, however, is correct  
> (640x400 as specified in the mapfile), but it is a white rectangle  
> instead of the raster image.
>
> The temporary JPG file is attached (Industri12128218881248.jpg).
>
> I suspect it is a gdal problem, but my ms4w does support gdal, as  
> shown below:
> C:\ms4w\Apache\cgi-bin>mapserv.exe -v
> MapServer version 4.6.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG  
> OUTPUT=WBMP OUTPUT=PDF
> OUTPUT=SWF OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE  
> SUPPORTS=WMS_SERVER SUPPO
> RTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT  
> SUPPORTS=WCS_SERVER INPUT
> =JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE DEBUG=MSDEBUG
>
> I also have the following *.dll files in C:\ms4w\Apache\cgi-bin\  
> folder:
> gdal12.dll
> NCScnet.dll
> NCSEcw.dll
> NCSUtil.dll
> xerces-c_1_6_0.dll
>
> So I think all the necessary *.dlls are complete.
>
> I have tried copying the *.dll above to C:\WINDOWS\System32\, but to  
> no avail. MapServer still displays white rectangle instead of the  
> raster image.
>
> I have opened the TIFF raster image using Photoshop as well, and  
> yes, it is a correct raster image, not white rectangle. But still,  
> MapServer displays nothing but white rectangle.
>
> What should I do? What's wrong? MapServer 4.6.1 is capable to  
> display raster image, isn't it? I really need to display the raster  
> image, what should I do? Please please help. :(
>
> Thanks & S.O.S,
> -Kresh
>
>