[mapserver-users] GEOMTRANSFORM LABELPNT example

[Brent Fraser]

Hey Jeff,

   I've been looking into this too (not finished yet).  I'm using v6.0.1 
and can reproduce my original results (blue dot to the left) AND Ian's 
(grey dot coincident with white dot).  Very strange.  My shapefile 
dataset gets reprojected from geographic to UTM, so that may be causing 
the difference.  I need to look into that...

Best Regards,
Brent Fraser


On 12/11/2011 10:57 AM, Jeff McKenna wrote:
> On 11-12-11 11:20 AM, Ian Walberg wrote:
>> Here is the map file we are using ms4w 3.0.3.
>>
>> We thought the larger grey circle should be drawn in the center of the
>> label text.
>>
>> What have we done wrong?
>>
>>
>
> I have done some testing on this on Windows, with MapServer trunk 
> (6.1-dev), here are my findings:
>
> - I used Brent's original example styles (from 
> http://osgeo-org.1803224.n2.nabble.com/GEOMTRANSFORM-labelpnt-location-td6408065.html) 
> with Ian's FEATURE layer --> Brent's "Blue Dot" LABELPNT with POSITION 
> CC is now correctly placed in the center of the label text (so it 
> seems this has been fixed in the code, but I can't find the ticket 
> that says that)
> - If I change to POSITION LR (as in Ian's example layer) then I get 
> Ian's issue (LABELPNT is placed at the geometry location, not in the 
> center of the label text
> - but this is now an issue of understanding the developer's logic 
> (from that thread SteveL says "Let me ponder this and get back to you. 
> I think it makes sense to use the label point geotransform only with 
> position CC so that it matches actual shape location.")
>
> That's all I know at this point (ha pun).
>
> -jeff
>
>
>
>