[Chameleon] scalehints

[Paul Spencer]

Bart,

I think that you can use the scalezoom widget, which gives you the 
ability to step in and out at preset scales.  But there is nothing to 
cause the map to 'snap' to a set of scales when using other widgets such 
as zoomin, zoomout, zoom bounding box, etc.  If such a mechanism were 
implemented, I would think that it would be part of the map widget to 
enforce preset scales, but I am not sure what the best mechanism for 
implementing it would be.  If you really want to pursue this, I can 
follow up with you directly.

Cheers,

Paul

bartvde@xs4all.nl wrote:

> Hi list,
> 
> is there a possibility to have the Chameleon "Map widget" use a certain
> set of scalehints?
> 
> We have ECW raster layers which, when read at a scale different from the
> original scale, take a really long time to render (this is a known problem
> in GDAL). So in order not to have them read in scales different from the
> original data, we need to have the map client fixed to a certain set of
> scales.
> 
> Is this possible, or how would one go about creating this functionality?
> 
> Thanks in advance for the info.
> 
> Best regards,
> Bart
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> Chameleon@lists.maptools.org
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> 

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|Paul Spencer                           spencer@dmsolutions.ca    |
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|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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