here it is,
but I just recognize that it writes a new layer - I am not that sure if
that is wished
stefan
Sunburned Surveyor wrote:
Stefan,
Can I get the source code for your plug-in. I think it will be rather
simple to modify it to add a UUID as an attribute to each feature in a
layer.
Thanks,
SS
/*****************************************************
* created: 07.06.2005
* last modified: 21.11.2005
* 24.11.2005 feature cloning added
* @author sstein
*
* description:
*
*****************************************************/
package ch.unizh.geo.degen.settlementtypes;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import javax.swing.JComboBox;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jump.feature.AttributeType;
import com.vividsolutions.jump.feature.BasicFeature;
import com.vividsolutions.jump.feature.Feature;
import com.vividsolutions.jump.feature.FeatureCollection;
import com.vividsolutions.jump.feature.FeatureDataset;
import com.vividsolutions.jump.feature.FeatureSchema;
import com.vividsolutions.jump.task.TaskMonitor;
import com.vividsolutions.jump.workbench.WorkbenchContext;
import com.vividsolutions.jump.workbench.model.Layer;
import com.vividsolutions.jump.workbench.model.StandardCategoryNames;
import com.vividsolutions.jump.workbench.plugin.AbstractPlugIn;
import com.vividsolutions.jump.workbench.plugin.EnableCheckFactory;
import com.vividsolutions.jump.workbench.plugin.MultiEnableCheck;
import com.vividsolutions.jump.workbench.plugin.PlugInContext;
import com.vividsolutions.jump.workbench.plugin.ThreadedPlugIn;
import com.vividsolutions.jump.workbench.ui.GUIUtil;
import com.vividsolutions.jump.workbench.ui.MultiInputDialog;
import com.vividsolutions.jump.workbench.ui.plugin.FeatureInstaller;
import com.vividsolutions.jump.workbench.ui.zoom.ZoomToSelectedItemsPlugIn;
/**
* @description:
* simplifies the outline of a builing
* a new layer with the result is created, with an additional Attribute
*
* @author sstein
*
**/
public class AddIDPlugIn extends AbstractPlugIn implements ThreadedPlugIn{
private ZoomToSelectedItemsPlugIn myZoom = new ZoomToSelectedItemsPlugIn();
private final String newAttributString = "BuildID";
private final String LAYEROBJECTS = "Layer Objects";
private MultiInputDialog dialog;
private FeatureCollection lobjects = null;
public void initialize(PlugInContext context) throws Exception {
FeatureInstaller featureInstaller = new FeatureInstaller(context.getWorkbenchContext());
featureInstaller.addMainMenuItem(
this, //exe
new String[] {"Generalisation", "Settlement"}, //menu path
this.getName(), //name methode .getName recieved by AbstractPlugIn
false, //checkbox
null, //icon
createEnableCheck(context.getWorkbenchContext())); //enable check
}
public static MultiEnableCheck createEnableCheck(WorkbenchContext workbenchContext) {
EnableCheckFactory checkFactory = new EnableCheckFactory(workbenchContext);
return new MultiEnableCheck()
.add(checkFactory.createWindowWithLayerNamePanelMustBeActiveCheck());
}
public boolean execute(PlugInContext context) throws Exception{
//Unlike ValidatePlugIn, here we always call #initDialog because we want
//to update the layer comboboxes.
initDialog(context);
dialog.setVisible(true);
if (!dialog.wasOKPressed()) {
return false;
}
else{
this.lobjects = dialog.getLayer(this.LAYEROBJECTS).getFeatureCollectionWrapper();
}
return true;
}
private void initDialog(PlugInContext context) {
dialog = new MultiInputDialog(context.getWorkbenchFrame(), "add object ids", true);
//dialog.setSideBarImage(IconLoader.icon("Overlay.gif"));
dialog.setSideBarDescription(
"load layer objects and add a new field with a unique id per layer");
try {
JComboBox addLayerComboBoxBuild = dialog.addLayerComboBox(this.LAYEROBJECTS, context.getCandidateLayer(0), null, context.getLayerManager());
}
catch (IndexOutOfBoundsException e) {}
//dialog.addDoubleField(T1, 20.0, 4);
GUIUtil.centreOnWindow(dialog);
}
public void run(TaskMonitor monitor, PlugInContext context) throws Exception{
//this.zoom2Feature(context);
FeatureCollection fc = this.addID(context, monitor);
context.addLayer(StandardCategoryNames.WORKING, "objects with id", fc);
System.gc();
}
/**
* centers the selected feature
* @param context
* @throws Exception
*/
private void zoom2Feature(PlugInContext context) throws Exception{
this.myZoom.execute(context);
}
protected Layer layer(PlugInContext context) {
return (Layer) context.getLayerViewPanel().getSelectionManager()
.getLayersWithSelectedItems().iterator().next();
}
private FeatureCollection addID(PlugInContext context, TaskMonitor monitor) throws Exception{
System.gc(); //flush garbage collector
// --------------------------
//-- get selected items
final Collection features = this.lobjects.getFeatures();
int count=0; int noItems = features.size(); Geometry resultgeom = null;
//FeatureDataset problematicFeatures = null;
FeatureDataset resultFeatures = null;
ArrayList problematicEdges = new ArrayList();
//List resultList = new ArrayList();
FeatureSchema fs = new FeatureSchema();
//--get single object in selection to analyse
for (Iterator iter = features.iterator(); iter.hasNext();) {
count++;
Feature ft = (Feature)iter.next();
//[sstein - 23.11.2005] line added to avoid that original features get changed
Feature f= (Feature)ft.clone();
//-- set schema by using the first selected item
//check if attribute name exists
boolean attributeExists = false;
if (count == 1){
//-- not sure to do that, since feature schemas of selected objects might be different
fs = copyFeatureSchema(f.getSchema());
attributeExists = fs.hasAttribute(this.newAttributString);
if (attributeExists == false){
fs.addAttribute(this.newAttributString, AttributeType.INTEGER);
//problematicFeatures = new FeatureDataset(fs);
}
resultFeatures = new FeatureDataset(fs);
}
//--create new Feature with one new attribute and copy attributvalues
Feature fnew = new BasicFeature(fs);
Object[] attribs = f.getAttributes();
if (attributeExists == false){
Object[] attribsnew = new Object[attribs.length+1];
for (int i = 0; i < attribs.length; i++) {
attribsnew[i] = attribs[i];
}
attribsnew[attribs.length]= "init";
fnew.setAttributes(attribsnew);
}
else{
fnew.setAttributes(attribs);
}
fnew.setAttribute(this.newAttributString, new Integer(count));
resultFeatures.add(fnew);
String mytext = "item: " + count + " / " + noItems;
monitor.report(mytext);
}// end loop over layer items
//context.addLayer(StandardCategoryNames.WORKING, "simplified buildings", resultFeatures);
return resultFeatures;
}
private FeatureSchema copyFeatureSchema(FeatureSchema oldSchema){
FeatureSchema fs = new FeatureSchema();
for (int i = 0; i < oldSchema.getAttributeCount(); i++) {
AttributeType at = oldSchema.getAttributeType(i);
String aname = oldSchema.getAttributeName(i);
fs.addAttribute(aname,at);
fs.setCoordinateSystem(oldSchema.getCoordinateSystem());
}
return fs;
}
}
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