|
Adam,
I'm copying the MapServer list on this, then it gets into the archives.
Here's how I do it for a sewer layer to show direction of the flow (the lines are drawn in the direction of flow) There are two different classes below for different colors :
SYMBOL
NAME "carret"
TYPE truetype
FONT 'arial-bold'
CHARACTER ">"
GAP 50
END
---------------------------------
CLASS
_expression_ (('[STATUS]' eq 'ACTV') AND (([FROM_INVERT] == -99) or ([TO_INVERT] == -99)))
STYLE
SIZE 15
SYMBOL "carret"
COLOR 255 0 0
END
END
CLASS
_expression_ (('[STATUS]' eq 'ACTV') AND ('[SYSTEM_TYPE]' eq 'Storm'))
STYLE
COLOR 60 60 255
SIZE 15
SYMBOL "carret"
END
END
bobb
|
Bob Basques
|
 |
Powered by
|
>>> "Adam Feidt" <[EMAIL PROTECTED]> wrote:
How do you call a symbol from the label object? I tried something similar using the TEXT ">" parameter from the CLASS object and it didn't work. See attachment for my results.
Adam M. Feidt
GIS Coordinator
City of Eden Prairie
8080 Mitchell Rd
Eden Prairie, MN 55344
phone# 952-949-8443
fax# 952-949-8334
From: Bob Basques [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 28, 2008 1:28 PM
To: Adam Feidt
Subject: RE: [Geomoose-developers] arrow symbology
You can use a Truetype font and grab the greater-then or less-than characters to use as the directional arrowhead. You will need to also use either the "auto" or the "follow" value for the ANGLE parameter in the Mapfile. Basically you just label the line with one of the characters.
You just set up a truetype symbol. Something like:
SYMBOL
NAME 'arrow'
TYPE TRUETYPE
FONT '<some font name>'
CHARACTER '<some character index number>'
END
SYMBOL
NAME 'arrow'
TYPE TRUETYPE
FONT 'courier'
CHARACTER '7'
END
>>> "Adam Feidt" <[EMAIL PROTECTED]> wrote:
Bobb,
I set up a truetype label using this character ">" and applied the
ANGLE parameter and I still can't get the arrows to show line direction.
It appears like it is working, but in some cases it is not consistent
with ArcMap's line direction. When you get some time can you email me
an example. Are you sure this is possible?
Adam M. Feidt
GIS Coordinator
City of Eden Prairie
8080 Mitchell Rd
Eden Prairie, MN 55344
phone# 952-949-8443
fax# 952-949-8334
-----Original Message-----
From: Bob Basques [mailto:[EMAIL PROTECTED]
Sent: Tuesday, February 26, 2008 4:36 PM
To: Adam Feidt
Subject: RE: [Geomoose-developers] arrow symbology
Try taking alook at the ANGLE parameter I think it's used inside of a
LABEL.
I'm not in the office right now, or I would pull an example from there.
bobb
**************** You can't be late until you show up. ***************
************ You never learn anything by doing it right. ************
*** War doesn't determine who's right. War determines who's left. ***
>>> "Adam Feidt" <[EMAIL PROTECTED]> 02/26/08 4:27 PM >>>
Bobb,
Thanks for your help again. I finally thought I got it to work,
but the arrows aren't necessarily pointing out the line direction. I'm
using a PIXMAP Symbol with the GAP set. It says on the MapServer
website the image should be drawn along the line. Thus, if my arrow is
pointing right and it draws from beginning to end it should show line
direction. When I compare it to the line direction in ArcMap it doesn't
always match up. My code is below. I don't see the Auto/Follow
parameter unless you use a label. Are you using a .gif or .png as a
label when showing line direction?
SYMBOL
NAME 'ARROW'
TYPE PIXMAP
FILLED TRUE
GAP 25
IMAGE '../symbols/Arrow.gif'
END #end symbol
CLASS
NAME 'Main'
_expression_ ""
STYLE
COLOR 85 255 0
SYMBOL "plainline"
SIZE 2
END
STYLE
COLOR 0 0 0
SYMBOL 'ARROW'
SIZE 10
END
Adam M. Feidt
GIS Coordinator
City of Eden Prairie
8080 Mitchell Rd
Eden Prairie, MN 55344
phone# 952-949-8443
fax# 952-949-8334
-----Original Message-----
From: Bob Basques [mailto:[EMAIL PROTECTED]
Sent: Tuesday, February 26, 2008 1:43 PM
To: Adam Feidt
Subject: Re: [Geomoose-developers] arrow symbology
I've done this with a truetype font symbol and using the AUTO/FOLLOW
parameter (depending on version of MapServer) to orient the arrow
marker. The marker is oriented based on the direction of the ployline
vertices in the element.
bobb
>>> "Adam Feidt" <[EMAIL PROTECTED]> 02/26/08 12:05 PM >>>
I would like to display line direction using an arrow symbol spaced
along a line. I've tried numerous examples from the web with no luck.
Does anyone have any symbology definitions that would accomplish this?
Any other ideas?
Adam M. Feidt
GIS Coordinator
City of Eden Prairie
8080 Mitchell Rd
Eden Prairie, MN 55344
phone# 952-949-8443
fax# 952-949-8334
|
