[Chameleon] A new set of Chameleon widgets - map size fix
mgleahy at alumni.uwaterloo.ca
Wed Nov 23 15:26:57 EST 2005
I've just updated the mcMapDIV widget (http://gaia.uwaterloo.ca/mgl/) -
you should now be able to modify the map size from the cwc2 tag in the
Peter Kingsbury wrote:
> I'm interested in checking out what you've done. I applaud your initiative!
> On a side note, I had some problems resizing the map widget, and found
> that it was necessary to change the dimensions inside the chameleon.map
> file in addition to (or perhaps instead of?) the normal widget html code.
> - Peter
> On 11/22/05, *Mike Leahy* <mgleahy at alumni.uwaterloo.ca
> <mailto:mgleahy at alumni.uwaterloo.ca>> wrote:
> Hello list,
> I have been working on a set of custom widgets for Chameleon over the
> past couple weeks that some users may be interested in trying. I've
> made a file and detailed description available at
> http://gaia.uwaterloo.ca/mgl/. The zip file that can be downloaded
> contains all the widgets I have worked on for a project I am currently
> participating in. Also included is a sample that should allow you to
> test them, and some basic setup instructions in a README.txt. To view a
> live demo, you can look at http://gaia.uwaterloo.ca/mgl/resizetest2/.
> You should find the map works relatively well without reloading the
> in the browser, and that it will resize to fill the browser window after
> it is resized.
> This work is in part a follow-up to the posts I made a couple weeks
> ago regarding enabling an AJAX-based chameleon interface. I had been
> able to make a simple Chameleon application function without reloading
> the page directly in the browser, but instead loading it through an
> content in
> the page. After doing so, I found that I had trouble when I got to the
> stage of making elements inside the page more dynamic (i.e., resizing
> the map widget - which for unclear reasons wouldn't display beyond its
> original extent).
> The best/only suggestion that I received regarding that problem was to
> rewrite the MapDHTML widget so that operations such as clipping the
> image while panning took place by simply displaying the image inside a
> div layer with overflow:hidden specified in the style. I have now done
> this, but rather than attempting to reverse-engineer the original
> MapDHTML widget's functionality, I found it simpler to start a new one
> essentially from scratch. As a result, I had to also rework many other
> widgets that are required for basic interaction with the map. The
> results (as you can see in the demo above) seem to work fairly well so
> far. There may be more widgets to come as we continue working on the
> tool we're developing, but I think what I've finished so far will
> provide a good start for any users interested in developing Chameleon
> applications that does not require reloading the page. There are also
> some fixes/enhancements to tools like the circle or polygon ROIs, which
> I noticed didn't seem to draw properly in the default versions (is this
> a known issue?).
> I hope everybody feels free to try out these widgets, and I look forward
> to any comments or feedback.
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