[mapserver-users] Different color for each row and it's child

Mon Sep 15 16:35:19 EDT 2008

David,

Thanks for the reply, but I can't seem to get this to work.  When I
change my mapfile to use this new attribute column, that layer (and most
all my others) go away and I get this as the response in FF:

<HTML>

<HEAD><TITLE>MapServer Message</TITLE></HEAD>

<!-- MapServer version 5.0.0 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG
OUTPUT=WBMP OUTPUT=PDF OUTPUT=SWF OUTPUT

=SVG SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER
SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER

 SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER
SUPPORTS=FASTCGI SUPPORTS=THREADS SUPPORTS

=GEOS INPUT=JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE -->

<BODY BGCOLOR="#FFFFFF">

getSymbol(): Symbol definition error. Parsing error near
(symcolor):(line 1684)

</BODY></HTML>

I added the column to my query and add that column name, in [] to my
class item.  Is there something that I am missing?  

Please note:  I have looked at the
http://mapserver.gis.umn.edu/development/rfc/ms-rfc-19/ page and I think
I understand what is required.  But now I am thinking that this is not
in MS4W 2.2.6.  Can anyone answer if that is the case?  And if so, is
there another solution like this around that version?

Thanks in advance,

Lee

From: Fawcett, David [mailto:David.Fawcett at state.mn.us] 
Sent: Monday, September 15, 2008 9:51 AM
To: Lee Keel; mapserver-users at lists.osgeo.org
Subject: RE: [mapserver-users] Different color for each row and it's
child

I would suggest creating a column in table A to store a color value and
pre-populating it.  You would want to store the RGB triplet (e.g. '255 0
0').  I assume that you could have some sort of a stored proc that gets
triggered when a new record gets added.  

Using the new attribute binding in MapServer 5, you could then just set
the feature color by specifying the column name in the style in your map
file layer definition.  

Something like:

STYLE

   COLOR [myColorColumn]

   OUTLINECOLOR 0 0 0

END

As soon as someone kicks the MapServer site server and it restarts, I
suggest looking at the map file reference document under style.  

Also, make sure that your color column is specified in the query in your
data statement.  

David.

	-----Original Message-----
	From: mapserver-users-bounces at lists.osgeo.org
[mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Lee Keel
	Sent: Monday, September 15, 2008 9:33 AM
	To: mapserver-users at lists.osgeo.org
	Subject: [mapserver-users] Different color for each row and it's
child

	I had a client request something that sounds really cool, but I
don't know how to do it (or if it is even possible in mapserver).

	First, my setup:

	I am running MS4W 2.6 on windows xp against postgis 8.2
database.  I have table A that has anywhere from 4 to 35 rows.  And
table B which could have several hundred rows each relating back to one
of the rows from table A.

	For Example:

	TableA

	ID                            Name

	1                                             t

	2                                             t2

	3                                             t3

	4                                             t4

	TableB

	ID            ta_id                      Value

	1              1                              something

	2              1                              something else

	3              1                              test

	4              2                              foo

	5              2                              bar

	6              3                              done

	Now my problem:

	The client would like to see all the rows rendered from tableA
as different colors.  These colors can be random, it doesn't matter.  On
top of this, they want to see all the associated rows in tableB as the
same color as their parent from tableA.

	Can I add a column to tableA and use that as a value in the
mapfile for the style?  And if so, how?

	I would greatly appreciate any help that anyone can provide.

	Thanks in advance,

	Lee

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