[OpenLayers-Users] scale dependent layers

[Christopher Schmidt]

On Fri, Dec 07, 2007 at 09:00:53PM +0100, Eric Lemoine wrote:
> 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.

But the *scales* object always comes first, and *is* pulled from the map
object -- overriding min and max scale.

(For the record, I think this is a bug, but I'm not sure exactly how to
fix it.)

-- Chris

> <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
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-- 
Christopher Schmidt
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