[OpenMap Users] CADRG progjection skews around scale 1:50000

From: <dianefitch_at_comcast.net>
Date: Tue, 9 Sep 2008 11:06:43 -0400

Don,

Has anyone encountered this problem.

Using Openmap 4.6.3 or 4.6.4 application without any modifications,
when zooming in or out using CADRG projection, the image is skewed around 1:5,149,249 scale and 1:7,000,000 once zoomed in closer tha
1:5,000,000 the problem does not appear

I drew a simple range ring about 1degree or lat and 1 degree of lon

 It is circular most of the time, but at certain scales it appears "Squished"./skewed
The skewing seems to appear when the graticule lines form a square (lat/longs equadistance??) Other scales the latitude
is wider than the longitude.

This problem does not appear to happen in the Mercator Projection, Orthogonal, Gnomonic
The LLXY projection the range rings are always skewed


Example pictures are around 38N Lat and 76W Lon


Thanks,

Diane Fitch
Praxis Engineering




--
[To unsubscribe to this list send an email to "majdart_at_bbn.com"
with the following text in the BODY of the message "unsubscribe openmap-users"]
Received on Tue Sep 09 2008 - 11:06:23 EDT

This archive was generated by hypermail 2.3.0 : Tue Mar 28 2017 - 23:25:09 EDT