[mapserver-dev] testing CLUSTER object

[Tamas Szekeres]

2011/4/14 Stephen Woodbridge <woodbri at swoodbridge.com>

> I was thinking about the issue of the cluster symbols getting clipped by
> tile edge effects and I think that we should treat symbols similar to labels
> and be able to say PARTIAL FALSE. The down side of this is that symbols near
> edges might never get drawn. Also, Am I correct in remembering the clusters
> are based on the features in the view, so a cluster on the right or left
> side of adjoining edges will be based on the meta-tile to the right or left
> which might make some strange effects.
>
> Tamas, you probably have a better read on this since you thought through
> the implementation in much more detail than I ever have.
>
>
Steve,

We should definitely increase the (meta)tile size with a buffer at least
with CLUSTER MAXDISTANCE in each directions otherwise not all of the
neighbouring features are considered during the cluster creation near to the
tile borders.


Best regards,

Tamas
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/mapserver-dev/attachments/20110414/20275019/attachment-0001.html