[mapserver-users] Question on rfc 86

[Tamas Szekeres]

Josh,

The union layer always retrieve all features from the source layers
regardless of their visibility. This is because the source layers are hidden
in most cases (STATUS OFF) to avoid the duplication of the features drawn.
However the desired scale range (MINSCALEDENOM, MAXSCALEDENOM) could indeed
be taken into account when accessing the source layers, by using a minor
change.

BTW: How the legend is drawn in your case? As far as I know mapserver draws
only the layers in the scale range by default.

Best regards,

Tamas



2011/5/14 Josh Hevenor <jhevenor at rogers.com>

> This may or may not be relevant but reading RFC 68 got me wondering.
>
> I have an application that has shape file data for lakes. There are
> different shapefiles for data with higher accuracy that are used with
> scale ranges so that only one is drawn at a time.  Specifically
> something like lakes_1_1m, lakes_1_250k, lakes_1_50k.
>
> I'm really looking for a way to show one LAKES layer in the application
> legend instead of 3 layers, two of which are always out of scale. Can or
> should I use a UNION layer to connect these layers? What other approach
> should I consider?
>
> Thanks for the advice,
>
> Josh
>
> _______________________________________________
> mapserver-users mailing list
> mapserver-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/mapserver-users/attachments/20110514/ac6c797e/attachment.html