[Geomoose-users] Dealing with scales

[James Klassen]

Not really since the browsers don't accurately report screen DPI, so
traditional scales in the interactive map are rather meaningless.  The main
place the scale is important is to allow printing to a known scale.
Assuming GeoMoose's DPI matches MapServer's (and I think it is at least
close), it also helps when setting min/max scale denominators in MapServer
layers/classes.

The scale reported in the interface (in the drop down in the lower right)
is a scale assuming some nominal display DPI.  (Either 72, 75 or 96 I
think, but would have to check to be sure.)

The scales parameter in the mapbook is actually a resolution.  (It is
simply passed into OpenLayers to setup the zoom levels, primarily for the
popular tiled basemaps.)
On Jun 19, 2013 9:41 AM, "Robert R. Raiz" <raizrobert at gmail.com> wrote:

> Oh, as usual, I find something right after I post..
> I read that "The scales are actually ground units per pixel resolution
> settings and not true scales. "
>
> Is it possible to somehow change this to render actual scales?
>
>
> On Wed, Jun 19, 2013 at 5:33 PM, Robert R. Raiz <raizrobert at gmail.com>wrote:
>
>> Hello all,
>>
>> As I said in a previous post, I am trying to replace the old Chameleon
>> web mapping tool with GeoMoose.
>>
>> Something that I did not quite understand, is why the scales are
>> different in these two mapping tools if they have the same extent;
>>
>> So, I have an extent in the mapfile. Chameleon is giving me a scale
>> of 448286 and in GeoMoose I have 1:35203
>>
>> Can you please tell me what am I missing? I first thought that it has
>> something to do with the ground_units param (as I need the units in feet);
>>
>> Thank you,
>> --
>> *Raiz Roland Robert*
>>
>>
>>
>
>
> --
> *Raiz Roland Robert*
>
>
>
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