Dear Steve,
Is this another case for allowing the user to explicitly specify
the centre of a symbol (as proposed in RFC 45 -
http://mapserver.org/development/rfc/ms-rfc-45.html)?
Håvard
Steve Lime wrote:
Hi David: There is no connection between offset and symbol size. The offset is
independent and given
as a constant value in pixels (although it is scaled). Sounds like you need to
change it dynamically based
on your image size and that can't be done as things sit now. Can you fix your
image size or is it and I'm
missing something.
Steve
On 7/16/2009 at 3:51 AM, in message
<[email protected]>, "David
Martin" <[email protected]> wrote:
I am developing a new application and am rendering around a load of
graphic symbol layers using a Map file layer such as
LAYER
NAME cape_headland_point
STATUS ON
GROUP all
DATA 'ExplorOz/Places/Cape,Headland,Point'
TYPE POINT
SYMBOLSCALE 1000000
CLASS
STYLE
SYMBOL [POIImage]
MAXSIZE 15
MINSIZE 4
SIZE 8
END
END
METADATA
"wms_title" "Capes, Headlands & Points"
END
PROJECTION
"+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs"
END
END
As you can see I am sizing the output symbol which is a 20x20px PIXMAP
image - this is working great however the position of the image needs to
be OFFSET up by half the size of the image (to make the actual point be
the center of the image) - I have tried using OFFSET however when the
image size changes (based on SYMBOLSCALE)the offsets are wrong. Is there
a way to OFFSET image symbols based on the SYMBOLSCALE and MAX/MIN
SIZES?
Regards
David
_______________________________________________
mapserver-users mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/mapserver-users
--
Håvard Tveite
Department of Mathematical Sciences and Technology, UMB
Drøbakveien 31, POBox 5003, N-1432 Ås, NORWAY
Phone: +47 64965483 Fax: +47 64965401 http://www.umb.no/imt/
_______________________________________________
mapserver-users mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/mapserver-users
