[OpenLayers-Users] scale dependent layers

Bart van den Eijnden (OSGIS) bartvde at osgis.nl
Fri Dec 7 16:36:00 EST 2007

That's true, but since I have the scales array set on the Map, the layer 
also has scales. And if scales is not null, it will never reach the code 
block where minScale and maxScale are applied.

Best regards,

Eric Lemoine schreef:
> On Dec 7, 2007 3:53 PM, Bart van den Eijnden (OSGIS) <bartvde at osgis.nl> wrote:
>> Hi list,
>> I am trying to make one of my WMS layers scale dependent (only visible
>> between 0 and 1:25000, units: m), but I cannot get it done.
>> My map is constructed with an array of scales and a maxExtent.
>> On my layer I use minScale 25000 and maxScale 0.
>> But since the code in InitResolutions of Layer.js falls back on the map
>> object, the Layer's scales array will be set using the Map's scales array,
>> and the code for minScale and maxScale will never be reached.
> When I look at the code, I see the opposite. minScale, maxScale and
> friends are taken from the map object *only* if they're not specified
> at the layer level.
> <http://trac.openlayers.org/browser/trunk/openlayers/lib/OpenLayers/Layer.js#L411>
> <http://trac.openlayers.org/browser/trunk/openlayers/lib/OpenLayers/Layer.js#L604>
> Am I missing something here?
> --
> Eric

Bart van den Eijnden
OSGIS, Open Source GIS
bartvde at osgis.nl

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