Here is an example:
public boolean execute(final PlugInContext context) throws Exception
{
reportNothingToUndoYet(context);
new CopySelectedItemsPlugIn().execute(context);
Layer[] selectedLayers =
context.getLayerNamePanel().getSelectedLayers();
FeatureSchema featureSchema = new FeatureSchema();
featureSchema.addAttribute("GEOMETRY", AttributeType.GEOMETRY);
featureSchema.addAttribute(LAYER, AttributeType.STRING);
//add all attributes from selected layers
for (int i=0; i<selectedLayers.length; i++) {
FeatureSchema schema =
selectedLayers[i].getFeatureCollectionWrapper()
.getFeatureSchema();
for (int j=0; j<schema.getAttributeCount(); j++) {
String name = schema.getAttributeName(j);
if (!featureSchema.hasAttribute(name)) {
featureSchema.addAttribute(name,
schema.getAttributeType(name));
} else if (schema.getAttributeType(name)
!= featureSchema.getAttributeType(name)) {
featureSchema.addAttribute(name
+getAttributeTypeChar(schema.getAttributeType(name)),
schema.getAttributeType(name));
}
}
}
FeatureDataset featureDataset = new FeatureDataset(featureSchema);
Collection selectedCategories =
context.getLayerNamePanel().getSelectedCategories();
Layer newLayer = context.addLayer(selectedCategories.isEmpty()
? StandardCategoryNames.RESULT
: selectedCategories.iterator().next().toString(), "Combined",
featureDataset);
newLayer.setFeatureCollectionModified(true).setEditable(true);
Map attributeToStyleMap = new HashMap();
ColorScheme colorScheme = ColorScheme.create("Set 3
(ColorBrewer)");
for (int i=0; i<selectedLayers.length; i++) {
Layer layer = selectedLayers[i];
Collection features =
layer.getFeatureCollectionWrapper().getFeatures();
newLayer.getFeatureCollectionWrapper().addAll(
conform(features,featureSchema, layer.getName()));
attributeToStyleMap.put(layer.getName(), new
BasicStyle(colorScheme.next()));
}
newLayer.getBasicStyle().setEnabled(false);
ColorThemingStyle themeStyle = new ColorThemingStyle(LAYER,
attributeToStyleMap, new BasicStyle(Color.gray));
themeStyle.setEnabled(true);
newLayer.addStyle(themeStyle);
ColorThemingStyle.get(newLayer).setEnabled(true);
newLayer.removeStyle(ColorThemingStyle.get(newLayer));
ColorThemingStyle.get(newLayer).setEnabled(true);
newLayer.getBasicStyle().setEnabled(false);
return true;
}
regards,
Larry
On Tue, Dec 8, 2009 at 10:54 AM, luca marletta <lucama...@gmail.com> wrote:
> Hi All,
> first tanks for the new openjump 1.3.1!!
>
> This my question:
>
> Can some one give me an suggestion which way I can apply a color
> scheme for each feature based on a field. I mean the same effect that
> from theme panel but programmaticaly.
>
> I'm working on a plugin for check polygon and I'd like to see the
> result immediately by colors.
>
> I need an indication for some class or some piece of code.
>
> Thanks a lot
>
> luca
>
> luca marletta
> www.beopen.it
>
>
> ------------------------------------------------------------------------------
> Return on Information:
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> Get the facts.
> http://p.sf.net/sfu/google-dev2dev
> _______________________________________________
> Jump-pilot-devel mailing list
> Jump-pilot-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
>
--
Larry Becker
Integrated Systems Analysts, Inc.
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