[mapserver-users] Polygon layer does not cover labels

[Sven Geggus]

Matt McClelland <matt at wildwalks.com> wrote:

> What would be really nice is a script that can 'tweak' DEM based on map
> data.  something that changes the DEM to ensure contours follow shorelines,
> and that the bottom of a valley follows creeks.  But I just dream of such a
> tool.

Sound complicated, but clipping might be sufficient for now because this can
be done using postgis.

It should be possible to clip the contours at the edges of the
waterbodies using ST_Difference:  Problem solved because no contour
lines means no labels as well :)

So looks like I "just" need to cook up the right SQL query now...

Regards

Sven

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