[Chameleon] Large TIFF not rendering

[Paul Dymecki]

Hi,
  I was wondering if there is any documentation anywhere on the steps to go
about for developing new widgets?  I've been looking at the html docs but
they seem a little meagre,
thx,
Paul
----- Original Message -----
From: "Delfos, Jacob" <jacob.delfos@maunsell.com>
To: <spencer@dmsolutions.ca>
Cc: <chameleon@lists.maptools.org>
Sent: Thursday, April 01, 2004 6:49 PM
Subject: RE: [Chameleon] Large TIFF not rendering


> 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_
> >
>
> --
>   -----------------------------------------------------------------
> |Paul Spencer                           pspencer@dmsolutions.ca   |
> |-----------------------------------------------------------------|
> |Applications & Software Development                              |
> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
>   -----------------------------------------------------------------
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