I also use hatch-style symbology, but I will define classes that have lines only running in one direction, e.g. vertical, horizontal, diagonal-left, and diagonal-right, and combinations of these directions (in combination with different colors). This will help even more to distinguish between classes.
Note that you may have to specify "TRANSPARENCY 100", in order for your hatch symbology to render as transparent. If I don't, my hatch has an opaque white background.
regards,
Jacob
-----Original Message-----
From: UMN MapServer Users List on behalf of Todd Harris
Sent: Tue 10/16/2007 09:21
To: [email protected]
Subject: Re: [UMN_MAPSERVER-USERS] Rename: Getting DBF data for symbology
I have recently had the same problem with overlapping polygons at the
CLASS level, I solved it by using a hatch symbol that had a minimum
spacing value, thus allowing linework to appear through the hatching. It
will have a slight affect on the colour of the polygon on top but works
well.
STYLE
SYMBOL 'hatch135'
OUTLINECOLOR 0 0 0
COLOR 255 200 255 # light pink
END #STYLE
Todd
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-----Original Message-----
From: UMN MapServer Users List [mailto:[email protected]] On
Behalf Of Fawcett, David
Sent: Monday, 15 October 2007 9:39 PM
To: [email protected]
Subject: Re: [UMN_MAPSERVER-USERS] Rename: Getting DBF data for
symbology
I believe that transparency/opacity currently is only available at the
layer level, not the class level as Hayden appears to want.
If you really need the transparency option, you could break out your
classes into separate layers. This would allow you to use transparency,
but would of course multiply the number of layers and may give you a
very small performance hit (which may likely be negligible).
David.
-----Original Message-----
From: UMN MapServer Users List
[mailto:[email protected]] On Behalf Of Mevima Winn
Sent: Friday, October 12, 2007 12:23 PM
To: [email protected]
Subject: Re: [UMN_MAPSERVER-USERS] Rename: Getting DBF data for
symbology
There are a couple of ways.
First is to set a transparency level, if the polygons have to be
solid. Underlying polygon doesn't have to have any, while the top
polygon can have any transparency level you want - probably somewhere
between 40 and 60% if you want both to be approximately equally visible.
Or you can simply set an OUTLINECOLOR and no COLOR, which means
you will get an outline and no fill, which will show any underlying
polygons as long as they don't directly overlap the same lines. Any
overlapping lines can be identified by making the outline line thicker
and a different color, so whoever is viewing the map can see that there
are multiple polygons there.
Regards,
-Mevima
-----Original Message-----
From: UMN MapServer Users List
[mailto:[email protected]]On Behalf Of Hayden Fisher
Sent: Thursday, October 11, 2007 10:47 PM
To: [email protected]
Subject: [UMN_MAPSERVER-USERS] Rename: Getting DBF data
for symbology
Also polygons on top of polygons, is there a way to make
it so you can see both?
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