/**
* This method connects to the shapefile; retrieves information about its features; creates a map
* frame to display the shapefile and adds a custom feature selection tool to the toolbar of the
* map frame.
*/
public void displayShapefile(File file) throws Exception {
FileDataStore store = FileDataStoreFinder.getDataStore(file);
featureSource = store.getFeatureSource();
setGeometry();
/*
* Create the JMapFrame and set it to display the shapefile's features
* with a default line and colour style
*/
MapContext map = new DefaultMapContext();
map.setTitle("Feature selection tool example");
Style style = createDefaultStyle();
map.addLayer(featureSource, style);
mapFrame = new JMapFrame(map);
mapFrame.enableToolBar(true);
mapFrame.enableStatusBar(true);
/*
* Before making the map frame visible we add a new button to its
* toolbar for our custom feature selection tool
*/
JToolBar toolBar = mapFrame.getToolBar();
JButton btn = new JButton("Select");
toolBar.addSeparator();
toolBar.add(btn);
/*
* When the user clicks the button we want to enable
* our custom feature selection tool. Since the only
* mouse action we are intersted in is 'clicked', and
* we are not creating control icons or cursors here,
* we can just create our tool as an anonymous sub-class
* of CursorTool.
*/
btn.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
mapFrame
.getMapPane()
.setCursorTool(
new CursorTool() {
@Override
public void onMouseClicked(MapMouseEvent ev) {
selectFeatures(ev);
}
});
}
});
/** Finally, we display the map frame. When it is closed this application will exit. */
mapFrame.setSize(600, 600);
mapFrame.setVisible(true);
}
public MapContext buildContext() {
RandomStyleFactory RANDOM_STYLE_FACTORY = new RandomStyleFactory();
MapContext context = null;
MapLayer layer;
try {
context = new DefaultMapContext(DefaultGeographicCRS.WGS84);
DataStore store =
DataStoreFinder.getDataStore(
new SingletonMap(
"url",
Demo_ContextTree.class.getResource(
"/org/geotools/gui/swing/demo/shape/test_polygon.shp")));
FeatureSource<SimpleFeatureType, SimpleFeature> fs =
store.getFeatureSource(store.getTypeNames()[0]);
Style style = RANDOM_STYLE_FACTORY.createRandomVectorStyle(fs);
layer = new DefaultMapLayer(fs, style);
layer.setTitle("demo_polygon.shp");
context.addLayer(layer);
store =
DataStoreFinder.getDataStore(
new SingletonMap(
"url",
Demo_ContextTree.class.getResource(
"/org/geotools/gui/swing/demo/shape/test_ligne.shp")));
fs = store.getFeatureSource(store.getTypeNames()[0]);
style = RANDOM_STYLE_FACTORY.createRandomVectorStyle(fs);
layer = new DefaultMapLayer(fs, style);
layer.setTitle("demo_line.shp");
context.addLayer(layer);
store =
DataStoreFinder.getDataStore(
new SingletonMap(
"url",
Demo_ContextTree.class.getResource(
"/org/geotools/gui/swing/demo/shape/test_point.shp")));
fs = store.getFeatureSource(store.getTypeNames()[0]);
style = RANDOM_STYLE_FACTORY.createRandomVectorStyle(fs);
layer = new DefaultMapLayer(fs, style);
layer.setTitle("demo_point.shp");
context.addLayer(layer);
context.setTitle("DemoContext");
} catch (Exception ex) {
ex.printStackTrace();
}
return context;
}