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Re: [udig-devel] Read/Writeable Layers with Mapgraphics ...and a Comment
|
Many thanks Jesse - exactly what I needed!
Pete
Jesse Eichar wrote:
>
> For 1. here is a modified version:
>
> IMap map = ApplicationGIS.getActiveMap();
> IGeoResource resource = null;
> try
> {
> /* code to construct the underlying feature type
> for a layer */
> AttributeType geom =
> AttributeTypeFactory.newAttributeType("the_geom",
> Geometry.class);
> AttributeType idType =
> AttributeTypeFactory.newAttributeType("theid",
> Integer.class);
> AttributeType nameType =
> AttributeTypeFactory.newAttributeType("thename", String.class);
> AttributeType descriptionType =
> AttributeTypeFactory.newAttributeType("thedescription",
> String.class);
> /* add other attribute types here */
> FeatureType featureType =
> FeatureTypeBuilder.newFeatureType(new
> AttributeType[] {geom, idType, nameType, descriptionType}, "2D
> Area Layer");
> resource = CatalogPlugin.getDefault
> ().getLocalCatalog()
> .createTemporaryResource(featureType);
> } catch (FactoryRegistryException e1)
> {
> // TODO Auto-generated catch block
> e1.printStackTrace();
> } catch (IllegalArgumentException e1)
> {
> // TODO Auto-generated catch block
> e1.printStackTrace();
> } catch (SchemaException e1)
> {
> // TODO Auto-generated catch block
> e1.printStackTrace();
> }
> ApplicationGIS.addLayersToMap(map,
> Collections.singletonList(resource), 0);
>
>
> for 2:
> I'm not totally sure what you mean for this. You want to create a
> Map Graphic for drawing on the layer? I'm assuming you want to draw
> anything but they are just drawing and won't be added as features.
> Correct? For this you need 2 layers. One for the Map Graphic and
> another for the layer with the data. The reason is that each layer
> has exactly one renderer for the layer. It sounds like you want
> two. We have a bug report:
>
> http://jira.codehaus.org/browse/UDIG-1192
>
> that will allow the layers view to be configured so it doesn't show
> MapGraphics. But for now you can do something like:
>
> TreeViewer viewer = (TreeViewer) LayersView.getViewer();
> IContentProvider provider = viewer.getContentProvider();
> viewer.setContentProvider(new
> YourCustomFilteringContentProviderDecorator(provider));
>
> where YourCustomFilteringContentProviderDecorator will filter out all
> the layers that Resolve to MapGraphics.
>
> Jesse
>
>
> On 14-Jan-07, at 4:10 PM, ukpete wrote:
>
>>
>> A couple of questions (and thanks for taking the time to read them!).
>>
>> (1) How do I create a layer that isnt read-only? Where I can use
>> all the
>> standard tools in the UDig menu?
>>
>> I have some code that works, but it uses a deprecated geotools
>> method
>> (FeatureTypeFactory.newFeatureType):
>>
>> try
>> {
>> Map map = ApplicationGISInternal.getActiveMap();
>> IGeoResource resource = null;
>> try
>> {
>> /* code to construct the underlying feature type for a layer */
>> AttributeType geom = AttributeTypeFactory.newAttributeType
>> ("the_geom",
>> Geometry.class);
>> AttributeType idType = AttributeTypeFactory.newAttributeType
>> ("theid",
>> Integer.class);
>> AttributeType nameType =
>> AttributeTypeFactory.newAttributeType("thename", String.class);
>> AttributeType descriptionType =
>> AttributeTypeFactory.newAttributeType("thedescription", String.class);
>> /* add other attribute types here */
>> FeatureType featureType = FeatureTypeFactory.newFeatureType(new
>> AttributeType[] {geom, idType, nameType, descriptionType}, "2D Area
>> Layer");
>> resource = CatalogPlugin.getDefault().getLocalCatalog()
>> .createTemporaryResource(featureType);
>> } catch (FactoryRegistryException e1)
>> {
>> // TODO Auto-generated catch block
>> e1.printStackTrace();
>> } catch (IllegalArgumentException e1)
>> {
>> // TODO Auto-generated catch block
>> e1.printStackTrace();
>> } catch (SchemaException e1)
>> {
>> // TODO Auto-generated catch block
>> e1.printStackTrace();
>> }
>> Layer layer = map.getLayerFactory().createLayer(resource);
>>
>> ...is there a better (i.e. non-deprecated) way to do this?
>>
>> (2) I'd like to create a layer with two resources - first a
>> writeable layer
>> as above, that supports all geometries, and also associate a
>> mapgraphic
>> extension with that layer to draw on said layer - is there a way to
>> add both
>> of these resources to the same layer? I can get one or the other
>> to work
>> but not both.
>>
>> ..and finally my comment. What a superb piece of work uDig is,
>> just truly
>> amazing ... I cant begin to thank you for the effort you have
>> expended and
>> the effort it has saved me!
>>
>> Kind Regards,
>>
>> Pete Cornwell
>>
>> --
>> View this message in context: http://www.nabble.com/Read-Writeable-
>> Layers-with-Mapgraphics-...and-a-Comment-tf3011852.html#a8364678
>> Sent from the udig-devel mailing list archive at Nabble.com.
>>
>> _______________________________________________
>> 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
>
>
--
View this message in context: http://www.nabble.com/Read-Writeable-Layers-with-Mapgraphics-...and-a-Comment-tf3011852.html#a8392273
Sent from the udig-devel mailing list archive at Nabble.com.
