<br><br><div class="gmail_quote">2010/9/17 Brent Fraser <span dir="ltr"><<a href="mailto:bfraser@geoanalytic.com">bfraser@geoanalytic.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Are there any implications with respect generating legend graphics?<br>
Would MS read the datasource [again] to get symbology for the different<br>
classes?<br>
<br></blockquote><div><br>Brent,<br><br>I didn't mean to alter the current behaviour in this regard in order to keep the required changes as simple as possible. Currently at least one feature should be retrieved from the data source in order to have the legend item of this layer displayed correctly. This probem is not yet solved, however it has already been discovered in <a href="http://trac.osgeo.org/mapserver/ticket/26">http://trac.osgeo.org/mapserver/ticket/26</a>.<br>
<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Could there be a way of allowing a varing number of classes? I.E. from<br>
the datasource itself as opposed to specifying them in the map file?<br>
<br></blockquote><div><br>Despite of the fact we can use multiple classes the related class is overridden when the corresponding feature is retrieved from the source. There's no such option to override only a particular set of the parameters of each style. However one could use CLASSITEM instead of STYLEITEM to have better control (in MapServer) on how a class is displayed actually. But this requires some preparation at the data source so as to attach the proper class item to each feature.<br>
<br>Best regards,<br><br>Tamas<br> <br></div></div><br>