Hi David,

The error message is:
<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE 
ServiceExceptionReport SYSTEM 
"http://navviewerwms.airdata.co.uk:8089/geoserver/schemas/wms/1.1.1/WMS_exception_1_1_1.dtd";>
 <ServiceExceptionReport version="1.1.1" >   <ServiceException 
code="internalError">
      Rendering process failed
For input string: &quot;4 8 4 4&quot;
</ServiceException></ServiceExceptionReport>

The css is this:
* {
  font-family: "Lucida Sans";
  font-style: normal;
  font-weight: bold;
  font-size: 10;
  -gt-label-follow-line: true;
  -gt-label-padding: 0;
  -gt-shield-resize: stretch;
  -gt-shield-margin: 4 8 4 4;
  -gt-label-max-displacement: 10;
  -gt-label-group: true;
  stroke-width: 0.01;
  shield-mime: "image/svg+xml";
  stroke:#000;
  font-fill:#00FFFF;
  fill-opacity:1.0;
}

[@scale<32000000]{
  label: [name];
  label-placement: line;
  label-anchor: 0.5 0.5;
  label-offset: 0;
}

/* Bidirectional is represented by '-' through coalesce in the SQL*/
[direction='-']{
   shield: url(BidirectionShield.svg);
}

[direction='F']{
   shield: url(ForwardShield.svg);
}

[direction='B']{
   shield: url(BackwardShield.svg);
}

From: David Winslow [mailto:[email protected]]
Sent: 22 January 2013 15:45
To: Chris Haste
Cc: [email protected]
Subject: Re: [Geoserver-users] CSS -gt-shield-margin

"-gt-shield-margin: 4 8 4 4;" should work.  Pink tiles in OpenLayers are 
usually its way of telling you that it got an error message back instead of a 
tile image; if you view such an image directly you can usually see the error 
message.

For example, in Chrome I would right-click on one of the pink tiles, then 
choose 'Open Image in New Tab" from the context menu.

I'd be interested to see the error message, as well as the .css and .sld files 
for your style.

--
David Winslow
OpenGeo - http://opengeo.org/

On Tue, Jan 22, 2013 at 10:05 AM, Chris Haste 
<[email protected]<mailto:[email protected]>> wrote:
Any takers?

From: Chris Haste [mailto:[email protected]<mailto:[email protected]>]
Sent: 21 January 2013 17:48
To: 
[email protected]<mailto:[email protected]>
Subject: [Geoserver-users] CSS -gt-shield-margin

Does anyone know the correct syntax for the above label parameter?

I'm trying to use it in conjunction with an SVG shield symbol and 
-gt-shield-resize: stretch.

If I use the following it only seems to pay attention to the first value. i.e. 
I get a padding of 4 all around.
  -gt-shield-margin: 4, 8, 4, 4;

If I use this
  -gt-shield-margin: 4 8 4 4;

I get pink tiles!

Thanks

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