Examples of org.locationtech.udig.project.IMap

org.locationtech.udig.project.IMap
The part of the model that represents a map.
A Map consists of:
- ContextModel - holds on to list of layers
- ViewportModel - the bounds and projection of the current display
  
  Responsibilities:
  - Provide access to the active controllers and models, but not viewers.
  - Create a new map based on the current map is also included
  @author Jesse @since 0.5

        Geometry newAOI = unionGeometry(featureCollection);
        
        updateAOIService(selectedLayer,newAOI );


        if (isNavigate) {
            IMap map = selectedLayer.getMap();
            ViewportModelImpl vmi = (ViewportModelImpl) map.getViewportModel();
            vmi.zoomToBox(bounds);
        }
    }

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                blackboard.remove(AOI_GEOMETRY);
            }
            mapBlackboard = victim.getMap().getBlackboard();
        }
        else {
            IMap activeMap = ApplicationGIS.getActiveMap();
            if( activeMap == null){
                return;
            }
            mapBlackboard = activeMap.getBlackboard();
        }
        if( geometry != null ){
            // record a WKT note in the mapblackboard for a rainy day
            String wkt = geometry.toText();
            mapBlackboard.put(AOI_GEOMETRY, wkt );

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    /**
     * @return the activeLayer
     */
    public ILayer getActiveLayer() {
        IMap map = ApplicationGIS.getActiveMap();
        
        // check if this map has a AOI layer marked already
        ILayer layer = restoreFromMapBlackboard(map);
        if( layer != null ){
            return layer;

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    /**
     * Sets the active layer and notifies listeners
     * @param activeLayer the activeLayer to set
     */
    public void setActiveLayer( ILayer activeLayer ) {
        IMap map;
        if( activeLayer != null ){
            map = activeLayer.getMap();
            String layerId = activeLayer.getID().toExternalForm();
            // mark this one as the "AOILayer" for the map
            map.getBlackboard().put(AOI_LAYER, layerId );
        }
        else {
            map = ApplicationGIS.getActiveMap();
            if( map == null){
                return;
            }
            map.getBlackboard().remove(AOI_LAYER);
        }        
        AOIListener.Event aoiEvent = new AOIListener.Event( AOILayerStrategy.this);
        notifyListeners(aoiEvent);
    }

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        // selection should be an Feture (of some sort)
        SimpleFeature feature = (SimpleFeature) selection;
        Geometry geom = (Geometry) feature.getDefaultGeometry();
        Point point = geom.getCentroid();
        
        IMap imap = ApplicationGIS.getActiveMap();
        if( imap == ApplicationGIS.NO_MAP ) return;
        
        CoordinateReferenceSystem world = imap.getViewportModel().getCRS();
        CoordinateReferenceSystem wsg84 = DefaultGeographicCRS.WGS84;
        
        double buffer = 0.01; // how much of the wgs84 world to see
        Envelope view = point.buffer( buffer ).getEnvelopeInternal();
        
        MathTransform transform;
        try {
            transform = CRS.findMathTransform( wsg84, world, true ); // relaxed
        } catch (FactoryException e) {
            return; // no go
        }
        Envelope areaOfInterest;
        try {
            areaOfInterest = JTS.transform( view, null, transform, 10 );
        } catch (TransformException e) {
            return; // no go
        }
        
        //NavigationCommandFactory navigate = NavigationCommandFactory.getInstance();


        NavCommand show = new SetViewportBBoxCommand(areaOfInterest, world);
        imap.sendCommandASync( show );
    }

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    public void interactionExample(ILayer layer) {
        if (layer.getInteraction(Interaction.BACKGROUND)) {
            // layer is intended as a background layer
            
            // We can clear the background setting using a custom command
            IMap map = layer.getMap();
            final Layer modifyLayer = (Layer) layer;
            map.sendCommandASync( new AbstractCommand(){
                public void run(IProgressMonitor monitor) throws Exception {
                    modifyLayer.setInteraction( Interaction.BACKGROUND, false );
                }
                public String getName() {
                    return "Clear Interaction";

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            public void partActivated(IWorkbenchPart part) {
                if (part == currentPart)
                    return;
                
                final IMap map = getMapFromPart(part);
                
                if (map != null) {
                    currentPart = part;
                    
                    if (parentControl == null || parentControl.isDisposed()) return;
                    
                    parentControl.getDisplay().asyncExec(new Runnable() {
                        public void run(){
                            setUpMapListeners(map);
                        }
                    });
                }
                
            }


            public void partBroughtToTop(IWorkbenchPart part) {
                partActivated(part);
            }


            public void partClosed(IWorkbenchPart part) {                
                if (part == WMTZoomLevelSwitcher.this) {
                    if (parentControl == null || parentControl.isDisposed()) return;
                    
                    // if the tool itself is closed
                    parentControl.getDisplay().asyncExec(new Runnable() {
                        public void run(){
                            removeAllListeners();
                            
                            currentPart = null;
                        }
                    });
                    
                    return;
                }
                
                if (part != currentPart)
                    return;


                final IMap map = getMapFromPart(part);
                
                if(map != null) {
                    if (parentControl == null || parentControl.isDisposed()) return;
                    
                    // remove

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    return null;
  }
  
  @Override
  public CoordinateReferenceSystem getCrs() {
    IMap currentMap = ApplicationGIS.getActiveMap();
    if (!currentMap.equals(ApplicationGIS.NO_MAP)) {
      return currentMap.getViewportModel().getCRS();
    }
    return null;
  }

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  private static String name = "Map CRS";
  
  @Override
  public ReferencedEnvelope getExtent() {
    final IMap currentMap = ApplicationGIS.getActiveMap();
    return calcualteExtent(currentMap);
  }

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    return null;
  }


  @Override
  public CoordinateReferenceSystem getCrs() {
    final IMap currentMap = ApplicationGIS.getActiveMap();
    if (!currentMap.equals(ApplicationGIS.NO_MAP)) {
        return currentMap.getViewportModel().getCRS();
    }
    return null;
  }

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