[mapserver-users] Re: How to label only largest displayed areas?

[Rahkonen Jukka]

Hi,

I do not feel that your use case is very common. Perhaps instead of modifying Mapserver you could think if you could do it mainly on the database side. For example, draw all the polygons without labels and use some clever SQL for creating another layer from the features which you would like to see labeled above it.

-Jukka Rahkonen-
________________________________________
Anzel, Phil wrote:


> Hi, All,

> How can I label only the largest displayed areas within an extent? For example, if I'm labeling states of the United States and my extent covers a small region around the Maine, New Hampshire and Massachusetts junction, I only want a single label for each state, chosen by the largest displayed area (within the current map extent) in each state.

> I'm using spatial data stored in Microsoft's SQL Server 2008.

> I've created an enhancement request ticket (#4173: Define a current layer extent's WKT string for use in Data statement) as one possible approach, but this approach requires a change to MapServer.

> Is there a better way?

Thanks.

- Phil Anzel
  Vistronix Inc for USDA/NRCS/ITC

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