[fusion-users] fusion widget / invokeurl questions

[Yewondwossen Assefa]

larry white wrote:
> Not sure if this is the appropriate list for the following questions -
> maybe dev list?
> 
  I think this list appropriate.

> Perhaps I'm missing something obvious, but I'm having difficulty
> figuring out how to migrate custom tasks from a MapGuide ajaxviewer app
> to a Fusion app - would like to create analogous widgets / InvokeUrl
> calls in Fusion.
> 
> For example, a 'quick view'-type function, that contains a list of links
> to places (click the link and the map will recenter and zoom to the
> point) or a geocoding function.
> MapGuide ajaxviewer uses the 'gotopoint.php' file to accomplish these
> things.
> 
> 
> I've gone through the code for most of the existing widgets, but can't
> find much that seems to helps me with Invoke URL calls.
> So, my initial questions:
> 
> 1) Are there examples of InvokeURL usage? (I couldn't find any examples
> in the widgets dir or in the documentation)
> 
> 2) Is there an existing, similar file/widget that accomplishes the
> 'gotopoint.php' capability?
> 
> 3) If it doesn't exist, where would one start in building such a capability?
>    Should this be an 'InvokeURL' call?  a Widget?
>    How/where to build 'gotopoint' logic so that it can be used in
> multiple instances/widgets (eg., quick-view and geocoding)
> 
> 4) How to communicate between task pane and map? how to pass
> javascript-y things between task pane and map using widgets and InvokeURL
>     - which files to include
>     - what methods/functions/calls to use
>    
> 

  I have not used much the InvokeURL so I can cot comment on it. But for 
the task that you want to accomplish (quickzoom),  the simplest way I 
thing would be to just have a custom javascript code to do it. Something 
like this could work:

function ZoomToPoint(x, y)
{
     var oMap = Fusion.getMapByIndice(0);
     oMap.zoom(x, y, 1);
}

  I find it a lot easier to use the Fusion api for simple interactions 
that creating widgets. There is an effort going on to add more 
documentation to fusion and hopefully a more complete API documentation 
would be available.

Hope it helps.

Best Regards

> thanks in advance....
> 
> -- larry white
> 


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Assefa Yewondwossen
Software Analyst

Email: assefa at dmsolutions.ca
http://www.dmsolutions.ca/

Phone: (613) 565-5056 (ext 14)
Fax:   (613) 565-0925
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