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/*
* Copyright 2018 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.samples.buffer;
import java.util.Arrays;
import javafx.application.Application;
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.Spinner;
import javafx.scene.input.MouseButton;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.layout.CornerRadii;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.paint.Paint;
import javafx.stage.Stage;
import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.geometry.GeodeticCurveType;
import com.esri.arcgisruntime.geometry.GeometryEngine;
import com.esri.arcgisruntime.geometry.LinearUnit;
import com.esri.arcgisruntime.geometry.LinearUnitId;
import com.esri.arcgisruntime.geometry.Point;
import com.esri.arcgisruntime.geometry.Polygon;
import com.esri.arcgisruntime.mapping.ArcGISMap;
import com.esri.arcgisruntime.mapping.BasemapStyle;
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.SimpleFillSymbol;
import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
public class BufferSample extends Application {
private MapView mapView;
@Override
public void start(Stage stage) {
try {
// create stack pane and application scene
StackPane stackPane = new StackPane();
Scene scene = new Scene(stackPane);
// set title, size, and add scene to stage
stage.setTitle("Buffer Sample");
stage.setWidth(800);
stage.setHeight(700);
stage.setScene(scene);
stage.show();
// authentication with an API key or named user is required to access basemaps and other location services
String yourAPIKey = System.getProperty("apiKey");
ArcGISRuntimeEnvironment.setApiKey(yourAPIKey);
// create a map with the topographic basemap style
ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);
// create a map view and set the map to it
mapView = new MapView();
mapView.setMap(map);
// create a graphics overlay to contain the buffered geometry graphics
GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
mapView.getGraphicsOverlays().add(graphicsOverlay);
// create a spinner to set the buffer size (in miles)
Spinner<Integer> bufferSpinner = new Spinner<>(500, 2000, 1000);
bufferSpinner.setEditable(true);
// set up units to convert from miles to meters
final LinearUnit miles = new LinearUnit(LinearUnitId.MILES);
final LinearUnit meters = new LinearUnit(LinearUnitId.METERS);
// create a white cross marker symbol to show where the user clicked
final SimpleMarkerSymbol markerSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CROSS, Color.WHITE, 14);
// create a semi-transparent purple fill symbol for the geodesic buffers
final SimpleFillSymbol geodesicFillSymbol = new SimpleFillSymbol(SimpleFillSymbol.Style.SOLID,
Color.web("fuchsia", 0.5), null);
// create a semi-transparent green fill symbol for the planar buffers
final SimpleFillSymbol planarFillSymbol = new SimpleFillSymbol(SimpleFillSymbol.Style.SOLID,
Color.web("lime", 0.5), null);
// create buffers around the clicked location
mapView.setOnMouseClicked(e -> {
if (e.isStillSincePress() && e.getButton() == MouseButton.PRIMARY) {
Point2D point2D = new Point2D(e.getX(), e.getY());
// buffer around the clicked point
Point point = mapView.screenToLocation(point2D);
Polygon geodesicBufferGeometry = GeometryEngine.bufferGeodetic(point, miles.convertTo(meters, bufferSpinner.getValue()),
meters, Double.NaN, GeodeticCurveType.GEODESIC);
Polygon planarBufferGeometry = GeometryEngine.buffer(point, miles.convertTo(meters, bufferSpinner.getValue()));
// show the buffered regions
Graphic geodesicBufferGraphic = new Graphic(geodesicBufferGeometry, geodesicFillSymbol);
Graphic planarBufferGraphic = new Graphic(planarBufferGeometry, planarFillSymbol);
graphicsOverlay.getGraphics().addAll(Arrays.asList(geodesicBufferGraphic, planarBufferGraphic));
// show a white marker where clicked
Graphic markerGraphic = new Graphic(point, markerSymbol);
graphicsOverlay.getGraphics().add(markerGraphic);
// set the z index of each graphic so they display in the correct order
geodesicBufferGraphic.setZIndex(0);
planarBufferGraphic.setZIndex(1);
markerGraphic.setZIndex(2);
}
});
// create a button to clear graphics
Button clearButton = new Button("Clear");
// clear the graphics overlay when the clear button is clicked
clearButton.setOnMouseClicked(event -> graphicsOverlay.getGraphics().clear());
// create a vbox that contains the spinner and clear button
VBox controlsVBox = new VBox(6);
controlsVBox.setBackground(new Background(new BackgroundFill(Paint.valueOf("rgba(0,0,0,0.3)"), CornerRadii.EMPTY,
Insets.EMPTY)));
controlsVBox.setPadding(new Insets(10.0));
controlsVBox.setMaxSize(100, 75);
controlsVBox.getChildren().addAll(bufferSpinner, clearButton);
// add the map view and vbox to the stack pane
stackPane.getChildren().addAll(mapView, controlsVBox);
StackPane.setAlignment(controlsVBox, Pos.TOP_LEFT);
StackPane.setMargin(controlsVBox, new Insets(10, 0, 0, 10));
} catch (Exception e) {
// on any error, display the stack trace.
e.printStackTrace();
}
}
/**
* Stops and releases all resources used in application.
*/
@Override
public void stop() {
if (mapView != null) {
mapView.dispose();
}
}
/**
* Opens and runs application.
*
* @param args arguments passed to this application
*/
public static void main(String[] args) {
Application.launch(args);
}
}