[mapserver-users] Transparent territory radius
Martin, Daniel
DMartin at erac.com
Mon Sep 30 14:14:35 PDT 2002
I didn't realize my work-around was made obsolete in 3.6.
Thanks so much for pointing it out, Steve.
-Dan Martin
-----Original Message-----
From: Steve Lime [mailto:steve.lime at dnr.state.mn.us]
Sent: Monday, September 30, 2002 4:05 PM
To: Martin, Daniel
Cc: mapserver-users at lists.gis.umn.edu
Subject: Re: [mapserver-users] Transparent territory radius
Hmmmm.... What about using a straight circular symbol, and then the
transparency option?
Eg.
SYMBOL
NAME 'circle'
TYPE ELLIPSE
POINTS 1 1 END
FILLED TRUE
END
LAYER
...
TYPE POINT
SIZEUNITS kilometers
TRANSPARENCY 50
CLASS
SIZE 60
NAME 'ORAC 30km ring'
SYMBOL 'circle'
COLOR 0 0 255
END
....
END
That *should* get you blue, transparent, circles centered at the points
you want. This needs version 3.6 though.
Steve
Stephen Lime
Data & Applications Manager
Minnesota DNR
500 Lafayette Road
St. Paul, MN 55155
651-297-2937
>>> "Martin, Daniel" <DMartin at erac.com> 09/30/02 03:24PM >>>
Sorry for the HTML format if you cannot handle it. It's the easiest
way to
get my point across. I'm not even sure the list supports it.
I am trying to create 30 kilometer radius territory rings that are
transparent. I succeeded, but not in the way I want. I created a
PIXMAP
symbol that (when blown up) looks like this:
Dither symbol
Now, when I use that symbol in predefined a POLYGON layer, it looks
like
this:
Great, this is exactly what I want. Except that I have to build the
circle
buffer layer before hand. When the underlying points change (which
happens
almost every week), I have to rebuild the layer manually. So, I
figured I
could use the original point layer this way:
LAYER
...
TYPE LINE
SIZEUNITS kilometers
CLASS
SIZE 60
NAME 'ORAC 30km ring'
SYMBOL dither-blue-10_Percent
COLOR 0 0 255
OUTLINECOLOR 10 10 10
END
....
END
Unfortunately, that looks like this:
Not exactly what I was hoping for. I've tried everything I could find
in
the documentation, the Wiki, and the mailing list archives, but none of
it
worked. Does anyone know how I can accomplish this with a POINT
layer?
Thanks,
Dan Martin
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