[Chameleon] Large TIFF not rendering

[Paul Spencer]

Jacob, this is definitely outside of my area of expertise and would be 
better handled on the mapserver list since it is not directly a 
chameleon issue.  One thought ... perhaps you don't have tiff support or 
it is broken some how?

Cheers,

Paul

Delfos, Jacob wrote:

> Paul,
> 
> The release I have is cwc2-1.0.4-20031112. I am definitely using a map-file
> (didn't hack it, at least not that bit). I had an ECW of around a 100MB
> which I used initially. Because I wasn't happy with the graphic quality
> (greenish planet mars-looking landscape, supposedly Australia) I fixed it up
> in photoshop. Unfortunately, since the free ECW software can typically only
> support up to 500MB, I couldn't save it back to ECW, so I converted to TIFF.
> However, now chameleon won't load it (doesn't hang on it either, though).
> All I changed is the filename in the DATA statement. The tif has a TFW file,
> and I also created an ERS file for it; no effect. 
> 
> A better alternative to my problem would be a freeware program that
> compresses >500MB to ECW. The new ECW sdk does it, but you'd need a license
> to do it commercially (and visual C++).
> 
> What else could cause a TIFF not to display? I'm not using compression.
> 
> Regards,
> 
> Jacob
> 
> 
> -----Original Message-----
> From: Paul Spencer [mailto:pagameba@magma.ca] 
> Sent: Thursday, 1 April 2004 23:07
> To: Delfos, Jacob
> Cc: 'chameleon@lists.maptools.org'
> Subject: Re: [Chameleon] Large TIFF not rendering
> 
> 
> Jacob,
> 
> there is not, as far as I know, any limitations on size of data files.
> 
> If you are using Chameleon 1.0.4 then you are accessing layers via WMS 
> by loading a context file, unless you have hacked the source to do 
> something different?  This would mean that the type of the file is 
> essentially immaterial.  Can you explain what you are trying to do?
> 
> Delfos, Jacob wrote:
> 
> 
>>Hi List,
>>
>>I'm trying to display a geoTiff file of slightly less than a gigabyte,
>>but it's not rendering. My TFW file is valid, because it shows alright 
>>in ArcGIS. It is in the same projection as the mapfile. I couldn't find 
>>any similar issues in the archive. Is there a limit on the filesize for 
>>a TIF? I'm using Chamaleon version 1.0.4. The TIF is RGB, 24bit.
>>
>>Thanks in advance,
>>
>>Jacob
>>
>>
>>*JACOB DELFOS
>>SPATIAL INFORMATION ANALYST
>>*Maunsell Australia Pty Ltd
>>629 Newcastle Street
>>PO Box 81
>>Leederville 6902
>>Western Australia
>>ABN 20 093 846 925
>>
>>Tel     + 61 8 9281 6185
>>Fax    + 61 8 9281 6297
>>_jacob.delfos@maunsell.com_
>>
> 
> 

-- 
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|Paul Spencer                           pspencer@dmsolutions.ca   |
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|Applications & Software Development                              |
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