[mapguide-users] Selection opacity

Jamo adam.jamison at portbris.com.au
Tue Sep 8 00:29:51 EDT 2009


Well there it is .... :(
Just spent ages changing numbers and letters and was always ending up with
the same result ... cheers Ken
Would there be a reason in forcing the opacity ? Would it be possible to
un-force?

Kenneth Skovhede, GEOGRAF A/S wrote:
> 
> Unfortunately the opacity is fixed:
> http://www.jasonbirch.com/nodes/2008/12/02/213/changing-selection-colour-in-mapguide-ajax-viewer/
> 
> "The SELECTIONCOLOR parameter is a hex string in RGBA format 
> <http://en.wikipedia.org/wiki/RGBA_color_space>, or its integer 
> equivalent. Note for geeks: the A (opacity) portion of the string is 
> ignored; the server code masks this out of the passed value, and then 
> adds 200 (C8) as the line opacity and 160 (A0) as the fill opacity."
> 
> The stylesheet that you have modified are for opacity when digitizing, 
> eg. drawing a polygon for buffer.
> 
> Regards, Kenneth Skovhede, GEOGRAF A/S
> 
> 
> 
> Jackie Ng skrev:
>> At the function RequestSelectionImage() in ajaxmappane.templ it makes a
>> call
>> to GETDYNAMICMAPOVERLAYIMAGE passing in the selection color. 
>>
>> That selection color is an ARGB (RGBA?) hex value. You should be able to
>> control the selection opacity by tweaking the alpha component of that hex
>> value.
>>
>> - Jackie
>>
>>
>> Jamo wrote:
>>   
>>> Is it possible to change the selection opacity?
>>>
>>> I don't mind doing this globally at the moment.
>>> I've tried changing this to 01 .01 but it is no good?
>>> perhaps I'm changing it in the wrong area?
>>> ajaxmappane.templ
>>>     #shapeFeedback
>>>     {
>>>         filter:alpha(opacity=50);   /* Internet Explorer       */
>>>         -moz-opacity:0.50;           /* Mozilla 1.6 and below   */
>>>         opacity: 0.50;               /* newer Mozilla and CSS-3 */
>>>     }
>>>
>>>     
>>
>>   
> 
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> 

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