Here is the example I mentioned earlier: - http://svn.refractions.net/udig/udig/trunk/tutorials/net.refractions.udig.tutorials.examples/src/net/refractions/udig/tutorials/examples/PickTool.java
You should be able to pick up all the helpful advice Jesse mentioned in the code there :-) Jody On Thu, Feb 12, 2009 at 5:30 PM, Jesse Eichar <[email protected]>wrote: > The ToolContext (obtained using the getContext() method) has methods for > generating Boundingboxes in the correct project. Remember that when doing a > spatial query on a layer the filter must be in the same projection as the > layer (at least for now). So take a look at the context and the layer > object for assistance creating the bounding box. The idea of a bounding box > filter for a mouse click the point that a pixel covers a lot of ground in > the map so you do a BBox query to get the features that intersect with that > pixel. > > Jesse > > > On 11-Feb-09, at 6:08 PM, Emily Gouge wrote: > > A feature source can take a filter so instead of asking for all features >> [source.getFeatures()] you can make a filter and only ask for features >> within that filter [source.getFeatures(myFilter)]. >> >> I believe the context associated with your tool should have a >> getBoundingBox(...) function that should return a bounding box around where >> the user clicked. You can then use a FilterFactory class to create a >> filter. >> >> Have a look at the info tool; it sounds like you are doing something >> similar. >> >> Emily >> >> >> Alessandro Sferrazza wrote: >> >>> Hi uDig'gers! >>> I have a Class that extend AbstractEditTool. >>> I need to get the feature selected by clicking on the map, in the >>> method mousePressed of my class so that I can modify its attributes. >>> I have worked on the following code >>> IMap map = ApplicationGIS.getActiveMap(); >>> FeatureSource source=map.getEditManager().getSelectedLayer().getResource( >>> FeatureSource.class, new NullProgressMonitor()); >>> FeatureCollection collection=source.getFeatures(); >>> But it retuns all the features on Selected layer and not the 'Clicked' >>> single one. >>> Regards >>> Alessandro Sferrazza >>> _______________________________________________ >>> User-friendly Desktop Internet GIS (uDig) >>> http://udig.refractions.net >>> http://lists.refractions.net/mailman/listinfo/udig-devel >>> >> _______________________________________________ >> User-friendly Desktop Internet GIS (uDig) >> http://udig.refractions.net >> http://lists.refractions.net/mailman/listinfo/udig-devel >> > > _______________________________________________ > User-friendly Desktop Internet GIS (uDig) > http://udig.refractions.net > http://lists.refractions.net/mailman/listinfo/udig-devel >
_______________________________________________ User-friendly Desktop Internet GIS (uDig) http://udig.refractions.net http://lists.refractions.net/mailman/listinfo/udig-devel
