<br><div class="gmail_quote">2011/4/14 Jeff McKenna <span dir="ltr"><<a href="mailto:jmckenna@gatewaygeomatics.com">jmckenna@gatewaygeomatics.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
- why isn't the LAYER TYPE ANNOTATION supported for the cluster object? A common trick for labelling symbols is to use an annotation layer, I really think the cluster logic should be applied to that type as well.<br>
<br></blockquote><div><br>Hi Jeff,<br><br>We have no specific reason not to support the annotation layers since those are point layers in most cases. I will see how it could be enabled too.<br><br> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
- I think there is a problem with query results from a cluster. If I query a non-cluster-object group of features with mode=nquery (and a template set at the LAYER level) I get the correct number of features returned; If I query the same cluster-object group of features with mode=nquery (and a template set at the LAYER level) I only ever get one feature result (testing with MapServer trunk). Thoughts?<br>
<br></blockquote><div><br>I'm not sure what you mean by querying a non-cluster-object group or querying the same cluster-object group. With the current approach we can query only those features which are actually generated (displayed) for that layer (ie the clustered features) and there's no such mechanism to retrieve the features behind a cluster (if I understand the question correctly). This option would require the driver to behave differently regarding to the query and the normal drawing operations.<br>
<br> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
- If you look at my example layer (<a href="http://www.mapserver.org/trunk/mapfile/cluster.html#example-clustering-railway-stations" target="_blank">http://www.mapserver.org/trunk/mapfile/cluster.html#example-clustering-railway-stations</a>), you can see that I had to do some tricks with an expression to not show a cluster object for when the featurecount = 1; should this be the case? Would anyone using MapServer ever need a cluster for one feature?<br>
<br></blockquote><div><br>Good question, I thought if that can be filtered by using the filter expression of the cluster object.<br><br> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
- I've had "challenges" trying to stop the cluster circle symbols from being split at tile edges with mod-geocache (<a href="http://labs.gatewaygeomatics.com/cluster/demo.html" target="_blank">http://labs.gatewaygeomatics.com/cluster/demo.html</a>) Yes it could be a missing setting either in my mapfile or in my geocache.xml, but I still want to report this. Maybe this is a good sign that we (MapServer or mod-geocache) need to make it easier for new users to prevent this from occurring?<br>
<br></blockquote><div><br>Is this dedicated to the cluster layer as a problem?<br> <br>Thanks for testing this, your comments and document additions were really helpful.<br><br>Best regards,<br><br>Tamas<br></div></div><br>
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