Examples with AbstractLeafletVector org.vaadin.addon.leaflet.AbstractLeafletVector used on opensource projects

Example 1 with AbstractLeafletVector

use of org.vaadin.addon.leaflet.AbstractLeafletVector in project v-leaflet by mstahv.

the class ChoroplethExample method getTestComponent.

@Override
public Component getTestComponent() {
    leafletMap = new LMap();
    leafletMap.addLayer(new LOpenStreetMapLayer());
    leafletMap.setView(37.8, -96.0, 4.0);
    /*
         * Reading from geojson here, but typically you'd just query
         * your DB directly for the data.
         */
    FeatureJSON io = new FeatureJSON();
    try {
        // 
        // 
        FeatureCollection fc = io.readFeatureCollection(getClass().getResourceAsStream("/us-states.json"));
        FeatureIterator iterator = fc.features();
        try {
            while (iterator.hasNext()) {
                Feature feature = iterator.next();
                final String name = feature.getProperty("name").getValue().toString();
                final Double density = (Double) feature.getProperty("density").getValue();
                System.out.println("State " + name + " read!");
                Geometry geometry = (Geometry) feature.getDefaultGeometryProperty().getValue();
                // Using a helper create v-leaflet components from geojson
                Collection<LeafletLayer> toLayers = JTSUtil.toLayers(geometry);
                for (LeafletLayer l : toLayers) {
                    leafletMap.addComponent(l);
                    if (l instanceof AbstractLeafletVector) {
                        configureFeature(l, density, name);
                    } else if (l instanceof LLayerGroup) {
                        LLayerGroup g = (LLayerGroup) l;
                        for (Component component : g) {
                            configureFeature((LeafletLayer) component, density, name);
                        }
                    }
                }
            }
        } finally {
            iterator.close();
        }
    } catch (MalformedURLException ex) {
        Logger.getLogger(ChoroplethExample.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(ChoroplethExample.class.getName()).log(Level.SEVERE, null, ex);
    }
    /*
         * AbsoluteLayout is a handy layout you can use to place any Vaadin
         * components on top of map. Here we just use raw html label to create
         * a legend, but we could use dynamically generated html or e.g. Table
         * component on top of the map as well.
         */
    AbsoluteLayout absoluteLayout = new AbsoluteLayout();
    absoluteLayout.setWidth("800px");
    absoluteLayout.setHeight("500px");
    absoluteLayout.addComponent(leafletMap);
    Label label = new Label("<style>.legend { background:white; padding:10px; border-radius: 4px; text-align: left; line-height: 18px; color: #555; } .legend i { width: 18px; height: 18px; float: left; margin-right: 8px; opacity: 0.7; }</style><div class=\"info legend leaflet-control\"><i style=\"background:#FFEDA0\"></i> 0–10<br><i style=\"background:#FED976\"></i> 10–20<br><i style=\"background:#FEB24C\"></i> 20–50<br><i style=\"background:#FD8D3C\"></i> 50–100<br><i style=\"background:#FC4E2A\"></i> 100–200<br><i style=\"background:#E31A1C\"></i> 200–500<br><i style=\"background:#BD0026\"></i> 500–1000<br><i style=\"background:#800026\"></i> 1000+</div>", ContentMode.HTML);
    label.setWidth("100px");
    absoluteLayout.addComponent(label, "bottom: 30px; right: 20px;");
    return absoluteLayout;
}

Example 2 with AbstractLeafletVector

use of org.vaadin.addon.leaflet.AbstractLeafletVector in project v-leaflet by mstahv.

the class ChoroplethExample method configureFeature.

protected void configureFeature(LeafletLayer l, final Double density, final String name) {
    AbstractLeafletVector lPolygon = (AbstractLeafletVector) l;
    lPolygon.setFillColor(getColor(density));
    lPolygon.setColor("white");
    lPolygon.setDashArray("3");
    lPolygon.setWeight(2);
    lPolygon.setFillOpacity(0.7);
    lPolygon.addClickListener(new LeafletClickListener() {

        @Override
        public void onClick(LeafletClickEvent event) {
            // Any server side data access is easy to do here, could for
            // example do a DB query and show more detailed data for the
            // selected feature
            Notification.show("In " + name + ", the population is " + density + "people/mile²");
        }
    });
    lPolygon.setLineCap("");
}