Examples of ILayer

org.eclipse.nebula.widgets.nattable.layer.ILayer
A Layer is a rectangular region of grid cells. A layer has methods to access its columns, rows, width and height. A layer can be stacked on top of another layer in order to expose a transformed view of its underlying layer's grid cell structure.

Columns and rows in a layer are referenced either by position or index. The position of a column/row in a layer corresponds to the physical location of the column/row in the layer. The index of a column/row in a layer corresponds to the location of the column/row in the lowest level layer in the layer stack. These concepts are illustrated by the following example:
```
 Hide Layer C 0 1 2 3 4 <- column positions 1 0 3 4 5 <- column indexes Reorder Layer B 0 1 2 3 4 5 <- column positions 2 1 0 3 4 5 <- column indexes Data Layer A 0 1 2 3 4 5 <- column positions 0 1 2 3 4 5 <- column indexes 
```
In the above example, Hide Layer C is stacked on top of Reorder Layer B, which is in turn stacked on top of Data Layer A. The positions in Data Layer A are the same as its indexes, because it is the lowest level layer in the stack. Reorder Layer B reorders column 0 of its underlying layer (Data Layer A) after column 2 of its underlying layer. Hide Layer C hides the first column of its underlying layer (Reorder Layer B).

Layers can also be laterally composed into larger layers. For instance, the standard grid layer is composed of a body layer, column header layer, row header layer, and corner layer:

corner column header

row header body

@see CompositeLayer
org.locationtech.udig.project.ILayer
Layer interface (part of a map). @author Jesse @since 1.0.0
zdenekdrahos.AI.NeuralNetwork.Layers.ILayer

corner	column header
row header	body

Examples of org.locationtech.udig.project.ILayer

            if (comboViewer == null || disposed) {
                listenAOILayer(false);
                return; // the view has shutdown!
            }


            ILayer current = getSelected();
            // check combo
            if (current != selected) {
                try {
                    listenCombo(false);
                    comboViewer.setSelection(new StructuredSelection(selected), true);

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Examples of org.locationtech.udig.project.ILayer

                    monitor.beginTask(Messages.ArrowSelection_0, 5);
                    ReferencedEnvelope bbox = getContext().getBoundingBox(new Point(x, y), 5);
                    SimpleFeatureCollection collection = null;
                    FeatureIterator<SimpleFeature> iter = null;
                    try {
                        ILayer selectedLayer = getContext().getSelectedLayer();
                        SimpleFeatureSource source = selectedLayer.getResource(
                                SimpleFeatureSource.class, new SubProgressMonitor(monitor, 1));
                        if (source == null)
                            return;
                        collection = source.getFeatures(selectedLayer.createBBoxFilter(bbox,
                                new SubProgressMonitor(monitor, 1)));
                        iter = collection.features();
                        if (!iter.hasNext()) {
                            if (!e.buttonsDown()) {
                                getContext().sendASyncCommand(

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Examples of org.locationtech.udig.project.ILayer

        comboViewer.setContentProvider(new ArrayContentProvider());
        comboViewer.setLabelProvider(new LabelProvider(){
            @Override
            public String getText( Object element ) {
                if (element instanceof ILayer) {
                    ILayer layer = (ILayer) element;
                    return layer.getName();
                }
                return super.getText(element);
            }
        });
        List<ILayer> layers = getAOILayerStrategy().getAOILayers();
        comboViewer.setInput(layers);
        
        ILayer activeLayer = getAOILayerStrategy().getActiveLayer();
        setSelected(activeLayer);
        
        comboViewer.addSelectionChangedListener(comboListener);
        
//        // list of current AOI features

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Examples of org.locationtech.udig.project.ILayer

        if (comboViewer == null || disposed) {
            listenStrategy(false);
            return; // the view has shutdown!
        }
        
        ILayer current = getSelected();
        // check combo
        if (current != selected) {
            try {
                listenCombo(false);
                comboViewer.setSelection(new StructuredSelection(selected), true);

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Examples of org.locationtech.udig.project.ILayer


    public ZoomSelection() {
    }


    public void run() {
        ILayer layer = getContext().getSelectedLayer();
        if (layer.hasResource(SimpleFeatureSource.class)) {
            try {
                SimpleFeatureSource resource = featureSource(layer);
                Query query = layer.getQuery(true);
                ReferencedEnvelope bounds = resource.getBounds(query);
                if (bounds == null) {
                  FeatureCollection<SimpleFeatureType, SimpleFeature> featureResult = resource.getFeatures(query);
                  if (featureResult != null && !featureResult.isEmpty()) {
                    ReferencedEnvelope envelope = featureResult.getBounds();
                    if (envelope != null) {
                      bounds = new ReferencedEnvelope(envelope, layer.getCRS());
                    }
                  }
                }
                
                if (bounds != null) {
                  // If the selection is a single point the bounds will
                  // have height == 0 and width == 0. This will break
                  // in ScaleUtils:306. Adding 1 to the extent fixes the problem:
                  if (bounds.getHeight() <= 0 || bounds.getWidth() <= 0) {
                      bounds.expandBy(1);
                  }
                  bounds = ScaleUtils.fitToMinAndMax(bounds, layer);
  
                  getContext().sendASyncCommand(new SetViewportBBoxCommand(bounds, layer.getCRS()));
              }
            } catch (IOException e) {
                SelectPlugin.log("failed to obtain resource", e); //$NON-NLS-1$
            }

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Examples of org.locationtech.udig.project.ILayer

            table.update();
            return;
        }
        
        Map map = currentEditor.getMap();
        final ILayer selectedLayer = map.getEditManager().getSelectedLayer();
        // layerSelecte returns if layer==newLayer.  If both are null we still want to listen to map for a
        // layer being added (and selected).
        if( selectedLayer==null && layer == null ){
            map.getEditManager().addListener(editManagerListener);
            return;

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Examples of org.locationtech.udig.project.ILayer

            return;
        }
        for( Iterator< ? > iter = structuredSelection.iterator(); iter.hasNext(); ) {
            Object item = iter.next();
            if (item instanceof ILayer) {
                ILayer layer = (ILayer) item;
                selection.add(layer);
            } else if (item instanceof LayerLegendItem) {
                final LayerLegendItem layerItem = (LayerLegendItem) item;
                selection.add(layerItem.getLayer());
            }

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Examples of org.locationtech.udig.project.ILayer

            return;
        }
        for( Iterator< ? > iter = structuredSelection.iterator(); iter.hasNext(); ) {
            Object item = iter.next();
            if (item instanceof ILayer) {
                ILayer layer = (ILayer) item;
                selection.add(layer);
            } else if (item instanceof LayerLegendItem) {
                final LayerLegendItem layerItem = (LayerLegendItem) item;
                selection.add(layerItem.getLayer());
            }

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Examples of org.locationtech.udig.project.ILayer


    private CircleAnimation animation;


    public void draw(MapGraphicContext context) {
        if (this.animation == null) {
            ILayer layer = context.getLayer();
            IBlackboard blackboard = layer.getBlackboard();
            blackboard.putInteger("x", 0);
            blackboard.putInteger("y", 50);
            this.animation = new CircleAnimation(layer, context);
            AnimationUpdater.runTimer(context.getMapDisplay(), animation);
        }

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Examples of org.locationtech.udig.project.ILayer

            return;
        }


        for (Iterator<?> iter = structuredSelection.iterator(); iter.hasNext();) {
            final Object item = iter.next();
            ILayer layer = null;
            if (item instanceof ILayer) {
                layer = (ILayer) item;
            } else if (item instanceof LayerLegendItem) {
                final LayerLegendItem layerItem = (LayerLegendItem) item;
                layer = layerItem.getLayer();

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