Java examples for Geographic Information System:Esri
update the Geometry and attributes of a Graphic.
/*/* w w w. j a v a 2 s . c o m*/ * Copyright 2015 Esri. Licensed under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the License. * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law * or agreed to in writing, software distributed under the License is * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the specific language * governing permissions and limitations under the License. */ package com.esri.sampleviewer.samples.graphicsoverlay; import java.util.ArrayList; import java.util.List; import java.util.Optional; import javafx.application.Application; import javafx.application.Platform; import javafx.geometry.Insets; import javafx.geometry.Point2D; import javafx.geometry.Pos; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.ComboBox; import javafx.scene.control.Label; import javafx.scene.control.TextArea; import javafx.scene.control.TextInputDialog; import javafx.scene.input.MouseButton; import javafx.scene.layout.StackPane; import javafx.scene.layout.VBox; import javafx.stage.Stage; import com.esri.arcgisruntime.concurrent.ListenableFuture; import com.esri.arcgisruntime.geometry.Point; import com.esri.arcgisruntime.geometry.SpatialReference; import com.esri.arcgisruntime.mapping.BasemapType; import com.esri.arcgisruntime.mapping.Map; import com.esri.arcgisruntime.mapping.view.Graphic; import com.esri.arcgisruntime.mapping.view.GraphicsOverlay; import com.esri.arcgisruntime.mapping.view.MapView; import com.esri.arcgisruntime.symbology.RgbColor; import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol; import com.esri.arcgisruntime.symbology.Symbol; /** * This sample demonstrates how to update the Geometry and attributes of a * Graphic. * <h4>How it Works</h4> * * Once {@link Graphic}s are created and added to the {@link GraphicsOverlay} a * Graphic can be selected by using {@link MapView#identifyGraphicsOverlay}. The * Geometry of a Graphic can then be changed by using the * {@link Graphic#setGeometry} method. The {@link Symbol} of a Graphic can also * be changed by using the {@link Graphic#setSymbol} method. Lastly, the * attributes of a Graphic can be set by using the {@link Graphic#getAttributes} * method and setting the new value to the corresponding key. * <p> * A listenableFuture needs to be a class level field because it could get * garbage collected right after being set. */ public class UpdateGraphics extends Application { private MapView mapView; private Graphic selectedGraphic; private GraphicsOverlay graphicsOverlay; private ListenableFuture<List<Graphic>> identifyGraphics; private boolean isUpdateLocationActive; private List<SimpleMarkerSymbol> markers; @Override public void start(Stage stage) throws Exception { // create stack pane and application scene StackPane stackPane = new StackPane(); Scene scene = new Scene(stackPane); scene.getStylesheets().add(getClass() .getResource("../resources/SamplesTheme.css").toExternalForm()); // set title, size, and add scene to stage stage.setTitle("Update Graphics Sample"); stage.setWidth(800); stage.setHeight(700); stage.setScene(scene); stage.show(); // create a control panel VBox vBoxControl = new VBox(6); vBoxControl.setMaxSize(250, 400); vBoxControl.getStyleClass().add("panel-region"); // create sample description Label descriptionLabel = new Label("Sample Description:"); descriptionLabel.getStyleClass().add("panel-label"); TextArea description = new TextArea( "This sample shows how to update the location, symbol, and attributes" + " of a Graphic. First select a Graphic, to change its location hit" + " the update location button and click anywhere on the map. To " + "update its description click the update description button. To " + "update its symbol just select a symbol from drop down box."); description.setWrapText(true); description.autosize(); description.setMinHeight(250); description.setEditable(false); // create buttons for user interaction Button updateLocationButton = new Button("Update Graphic Location"); Button updateDescriptionButton = new Button("Update Graphic Description"); updateLocationButton.setMaxWidth(Double.MAX_VALUE); updateDescriptionButton.setMaxWidth(Double.MAX_VALUE); updateLocationButton.setDisable(true); updateDescriptionButton.setDisable(true); // when clicked allow user to move graphic's location updateLocationButton.setOnAction(e -> { if (selectedGraphic.isSelected()) { isUpdateLocationActive = true; } }); updateDescriptionButton.setOnAction(e -> { if (selectedGraphic.isSelected()) { // get attributes from selected graphic java.util.Map<String, Object> attributes = selectedGraphic.getAttributes(); // create input dialog TextInputDialog dialog = new TextInputDialog(); dialog.setTitle(attributes.get("NAME").toString()); dialog.setGraphic(null); dialog.setHeaderText(attributes.get("DESCRIPTION").toString()); dialog.setContentText("New Description"); // set the graphic's description is text entered Optional<String> result = dialog.showAndWait(); result.ifPresent(text -> { if (!text.isEmpty()) { attributes.put("DESCRIPTION", text); } }); } }); // create section for combo box Label symbolLabel = new Label("Update Graphic Symbol"); symbolLabel.getStyleClass().add("panel-label"); ComboBox<String> symbolBox = new ComboBox<>(); symbolBox.getItems().addAll("CIRCLE", "TRIANGLE", "CROSS", "DIAMOND"); symbolBox.getSelectionModel().selectFirst(); symbolBox.setMaxWidth(Double.MAX_VALUE); symbolBox.setDisable(true); // set the symbol of the graphic symbolBox.showingProperty().addListener((obs, wasShowing, isShowing) -> { if (selectedGraphic.isSelected() && !isShowing) { selectedGraphic.setSymbol( markers.get(symbolBox.getSelectionModel().getSelectedIndex())); } }); // add labels, sample description, and buttons to the control panel vBoxControl.getChildren().addAll(descriptionLabel, description, updateLocationButton, updateDescriptionButton, symbolLabel, symbolBox); try { // create a graphics overlay graphicsOverlay = new GraphicsOverlay(); selectedGraphic = new Graphic(); // create a map with basemap light gray canvas final Map map = new Map(BasemapType.LIGHT_GRAY_CANVAS, 56.075844, -2.681572, 13); // enable buttons when map view is done loading map.addDoneLoadingListener(() -> { symbolBox.setDisable(false); updateLocationButton.setDisable(false); updateDescriptionButton.setDisable(false); }); // create a map view and set the map to it mapView = new MapView(); mapView.setMap(map); // add graphics overlay to the map view mapView.getGraphicsOverlays().add(graphicsOverlay); // create default graphics for graphics overlay createGraphics(); mapView.setOnMouseClicked(e -> { if (e.getButton() == MouseButton.PRIMARY) { // clear any selected graphic graphicsOverlay.clearSelection(); // create a point from location clicked Point2D mapViewPoint = new Point2D(e.getX(), e.getY()); if (isUpdateLocationActive) { // add new location to selected graphic Point mapPoint = mapView.screenToLocation(mapViewPoint); selectedGraphic.setGeometry(mapPoint); isUpdateLocationActive = false; } else { // identify the graphic that was selected identifyGraphics = mapView.identifyGraphicsOverlay(graphicsOverlay, mapViewPoint, 10, 2); identifyGraphics.addDoneListener(() -> { try { if (!identifyGraphics.get().isEmpty()) { // store the selected graphic selectedGraphic = identifyGraphics.get().get(0); selectedGraphic.setSelected(true); } } catch (Exception x) { // on any error, display the stack trace x.printStackTrace(); } }); } } }); // add the map view and control panel to stack pane stackPane.getChildren().addAll(mapView, vBoxControl); StackPane.setAlignment(vBoxControl, Pos.TOP_LEFT); StackPane.setMargin(vBoxControl, new Insets(10, 0, 0, 10)); } catch (Exception e) { // on any error, display the stack trace e.printStackTrace(); } } /** * Creates four Graphics with a location, a symbol, and two attributes. Then * adds those Graphics to the GraphicsOverlay. */ private void createGraphics() { Graphic graphic; // create spatial reference for the points final SpatialReference spatialReference = SpatialReference .create(4326); // create points to place markers List<Point> points = new ArrayList<>(); points.add(new Point(-2.641, 56.077, spatialReference)); points.add(new Point(-2.669, 56.058, spatialReference)); points.add(new Point(-2.718, 56.060, spatialReference)); points.add(new Point(-2.720, 56.073, spatialReference)); // create simple marker symbols for the points markers = new ArrayList<>(); markers.add(new SimpleMarkerSymbol(new RgbColor(255, 0, 0, 255), 10, SimpleMarkerSymbol.Style.CIRCLE)); markers.add(new SimpleMarkerSymbol(new RgbColor(128, 0, 128, 255), 10, SimpleMarkerSymbol.Style.TRIANGLE)); markers.add(new SimpleMarkerSymbol(new RgbColor(0, 255, 0, 255), 10, SimpleMarkerSymbol.Style.CROSS)); markers.add(new SimpleMarkerSymbol(new RgbColor(0, 0, 255, 255), 10, SimpleMarkerSymbol.Style.DIAMOND)); // create a list of names for graphics List<String> names = new ArrayList<>(); names.add("LAMB"); names.add("CANTY BAY"); names.add("NORTH BERWICK"); names.add("FIDRA"); // create a list of descriptions for graphics List<String> descriptions = new ArrayList<>(); descriptions.add("Just oppsite of Bass Rock."); descriptions.add("100m long and 50m wide."); descriptions.add("Lighthouse in northern section."); descriptions.add("Also known as Barley Farmstead."); // create four graphics with attributes and add to graphics overlay for (int i = 0; i < 4; i++) { graphic = new Graphic(points.get(i), markers.get(i)); graphic.getAttributes().put("NAME", names.get(i)); graphic.getAttributes().put("DESCRIPTION", descriptions.get(i)); graphicsOverlay.getGraphics().add(graphic); } } /** * Stops and releases all resources used in application. * * @throws Exception if security manager doesn't allow JVM to exit with * current status */ @Override public void stop() throws Exception { if (mapView != null) { mapView.dispose(); } Platform.exit(); System.exit(0); } /** * Opens and runs application. * * @param args arguments passed to this application */ public static void main(String[] args) { Application.launch(args); } }