[OpenLayers-Users] zoomToScale Issue

[bartvde at osgis.nl]

Hi,

how is your map instantiated? With a fixed set of scales/resolutions?

Or are you using fractionalZoom: true in your map config?

Best regards,
Bart

> All,
>
> I'm using OpenLayers (latest trunk version) with GeoServer 2.0.1 to
> display
> various layers which have scale rules defined on them within the GeoServer
> SLD (i.e. MaxScaleDenominator and / or MinScaleDenominator).
>
> I initially found that the scale in OpenLayers didn't match that in
> GeoServer but I have followed the steps outlined in this post
> http://openlayers.org/pipermail/users/2008-October/008453.html and as such
> added the following line before I use any of the OpenLayers classes:
>
> OpenLayers.DOTS_PER_INCH = 25.4 / 0.28;
>
> This means that the scale displayed by OpenLayers now matches that used by
> GeoServer to one / two decimal places.
>
> However, I have found that the map.zoomToScale function no longer works as
> expected. As such when I invoke map.zoomToScale(4578, false) the map zooms
> to a scale of 1:6800 instead of 4578 as expected.
>
> Does anybody have any ideas as to what I am doing wrong? Do I need to
> change
> something in addition to OpenLayers.DOTS_PER_INCH?
>
> Thanks
>
> Andrew
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