[Mapserver-users] mapfile mapscale strangeness

Dana Quinn dana at nextbus.com
Thu Jan 16 14:21:24 PST 2003


Bingo.  That seems to have been it.  Thank you both
for your help!  The units setting before was meters.

dana


Daniel Morissette wrote:

> I would suggest that you check the UNITS setting at the top-level in
> your mapfile.  It may be set to meters when it should be DD (degrees) or
> the reverse.  UNITS must represent the units in which your EXTENT is
> expressed.
> 
> Daniel
> 
> Lowell Filak wrote:
> 
>>I can't seem to reproduce it here.
>>Same version of MS (3.6.3) with older version of RH (7.1).
>>Possibly posting the relevant code may help.
>>Lowell F.
>>
>>The following message was sent by Dana Quinn <dana at nextbus.com> on Wed, 15 Jan 2003 17:48:54 -0800.
>>
>>
>>>I'm seeing a strange problem with application of the MINSCALE and
>>>MAXSCALE parameters.  I'm using 3.6.3, redhat linux 8, and perl
>>>mapscript.  I'm am working on getting an existing application that
>>>works under an old version of the mapserver working on this new
>>>version, on a new machine.
>>>
>>>So this is my new problem - I have layers that are only supposed to
>>>turn on at a 'larger scale' - more zoomed in - things like street
>>>names and secondary streets and stuff like that, that were turning
>>>on when my scale was much smaller.  I'd have something like
>>>MAXSCALE 40000 in the layer, but when I'd create a map that is
>>>zoomed out far enough that I could see complete states, I would
>>>still have the MAXSCALE 40000 layers displayed.
>>>
>>>So after some testing and lots of debug print statements, I
>>>found that mapscript, as I compiled it, thinks the SCALE is
>>>usually somewhere between 1 and 5.  I adjusted some of my MAXSCALE
>>>lines to these sorts of values, and things work the way I expect
>>>them to.
>>>
>>>So to summarize - I would expect the scale of the maps I create to
>>>be in ranges like 10000-25000, 250000 and so on, but they seem to
>>>be smaller numbers like 0.5, 3, so on.  Has anyone else seen
>>>something like this?  Did I blow some configuration option?
>>>
>>>dana
>>>
>>>--
>>>
>>>Dana Quinn, dana at nextbus.com
>>>NextBus Information Systems
>>>(510) 420-3117
>>>
>>>_______________________________________________
>>>Mapserver-users mailing list
>>>Mapserver-users at lists.gis.umn.edu
>>>http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
>>>
>>_______________________________________________
>>Mapserver-users mailing list
>>Mapserver-users at lists.gis.umn.edu
>>http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
>>
> 



-- 

Dana Quinn, dana at nextbus.com
NextBus Information Systems
(510) 420-3117




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