[OpenLayers-Users] UTM scales mismatch with Max/MinScaleDenomination

[Andrea Aime]

Christopher Schmidt ha scritto:
> On Sun, Dec 02, 2007 at 05:52:59PM +0100, Andrea Aime wrote:
>> Hi Chris,
>> about this scale inconsistency, you're right in saying it's due to the
>> DPI. The WMS standard suggests a DPI of approximately 90 (well, a 
>> multiplication factor of 0.28 in fact), and that's what GeoServer is 
>> using to compute the scale.
>> To be exactly true to the WMS standard (as far as I understand it) the 
>> setting would have to be:
>>
>> OpenLayers.DOTS_PER_INCH = 25.4 / 0.28;
> 
> I'm not sure where the 25.4 comes from

As far as I remember, it's the conversion between millimeters and inches
(25.4 millimiters to make an inch).

Cheers
Andrea