On Fri, 17 Nov 1995, Westdrop, Andrew wrote:
>
> I am using Conpack and Ezmap to create colorfilled contour maps using a
> Lambert equal area projection of the globe. I have defined parameters so
> that the map should only be drawn inside the unit circle ( CALL MPSETI
> ('EL', 1)), but I still occaisonally get a large color filled ring outside
> the unit circle. It seems like the more complicated the contour map is, the
> more likely the unwanted "ring around the map". Any ideas on how to
> eliminate this problem would be appreciated.
>
> Andrew Westdorp
>
The problem may be related to excessive smoothing being applied to the
contours which can result in the smoothed contours crossing over each
other. This will confuse the contour filling routines since the area
indentifiers get mixed up.
Test this by not smoothing the data:
CALL CPSETR ('T2D', 0.0) <- should be the the default anyway.
Cheers,
Jim
--------------------------------------------------------------------------------
.-. |\
Jim Fraser / |_| \
BMRC Climate Change Modelling Group .' \ e-mail: jrf AT unknown
BUREAU OF METEOROLOGY RESEARCH CENTRE / B.M.R.C. \ voice: +61 3 669 4520
GPO Box 1289K, Melbourne 3001 \ __ / fax: +61 3 669 4660
AUSTRALIA \_.-' \_*/
v
--------------------------------------------------------------------------------
This archive was generated by hypermail 2b29 : Wed Jun 28 2000 - 09:40:26 MDT