Developing Widgets (was Re: [Chameleon] Large TIFF not rendering)

[Paul Dymecki]

Thanks Paul,
   Sorry one more question, I'm trying to connect to an SQL server through
ODBC and was wondering what the dbtype should be in the SQLQuery Widget?
thx,
Paul
----- Original Message -----
From: "Paul Spencer" <pagameba@magma.ca>
To: "Paul Dymecki" <pdymecki@sympatico.ca>
Cc: <chameleon@lists.maptools.org>
Sent: Saturday, April 03, 2004 10:36 AM
Subject: Developing Widgets (was Re: [Chameleon] Large TIFF not rendering)


> Paul,
>
> I have started to put such a document together, I will try to send you
> what I have next week ... some review would be a good idea, programmers
> don't necessarily make good writers :)
>
> Paul
>
> Paul Dymecki wrote:
> > 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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> >>Chameleon@lists.maptools.org
> >>http://lists.maptools.org/mailman/listinfo/chameleon
> >
> >
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> >
>
> --
>   -----------------------------------------------------------------
> |Paul Spencer                           pspencer@dmsolutions.ca   |
> |-----------------------------------------------------------------|
> |Applications & Software Development                              |
> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
>   -----------------------------------------------------------------
>
>