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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.list_transformations_by_suitability;
import java.util.List;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
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.Paint;
import javafx.stage.Stage;
import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.geometry.DatumTransformation;
import com.esri.arcgisruntime.geometry.GeometryEngine;
import com.esri.arcgisruntime.geometry.Point;
import com.esri.arcgisruntime.geometry.SpatialReference;
import com.esri.arcgisruntime.geometry.TransformationCatalog;
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.SimpleMarkerSymbol;
public class ListTransformationsBySuitabilitySample extends Application {
private ArcGISMap map; // keep loadable in scope to avoid garbage collection
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);
scene.getStylesheets().add(getClass().getResource("/list_transformations_by_suitability/style.css").toExternalForm());
// set title, size, and add scene to stage
stage.setTitle("List Transformations by Suitability 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 light gray basemap style
map = new ArcGISMap(BasemapStyle.ARCGIS_LIGHT_GRAY);
// create a map view and set the map to it
mapView = new MapView();
mapView.setMap(map);
// create a graphics overlay to show the original graphic and the the transformed graphic
GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
mapView.getGraphicsOverlays().add(graphicsOverlay);
// create a blue square graphic located in the Greenwich observatory courtyard in London, UK, the location of the
// Greenwich prime meridian. This will be projected using the selected transformation.
Point originalPoint = new Point(538985.355, 177329.516, SpatialReference.create(27700));
Graphic originalGraphic = new Graphic(originalPoint, new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.SQUARE, 0xFF0000FF,
10));
graphicsOverlay.getGraphics().add(originalGraphic);
// create red cross graphic for transformed point
Graphic transformedGraphic = new Graphic();
transformedGraphic.setSymbol(new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CROSS, 0xFFFF0000, 10));
transformedGraphic.setVisible(false);
graphicsOverlay.getGraphics().add(transformedGraphic);
// zoom to the location of the original graphic
mapView.setViewpointCenterAsync(originalPoint, 5000);
// create a list of transformations
ListView<DatumTransformation> transformationsListView = new ListView<>();
// show the transformation name in the list
transformationsListView.setCellFactory(list -> new ListCell<DatumTransformation>() {
@Override
protected void updateItem(DatumTransformation transformation, boolean isEmpty) {
super.updateItem(transformation, isEmpty);
if (isEmpty) {
setText(null);
}
else if (transformation != null) {
setText(transformation.getName());
}
}
});
// if the checkbox is not selected, transformations should be ordered by suitability for the whole
// spatial reference. If checked, then transformations will be ordered by suitability for the map extent.
CheckBox suitabilityCheckBox = new CheckBox("Order by extent suitability");
suitabilityCheckBox.setOnAction(e -> {
transformationsListView.getItems().clear();
List<DatumTransformation> transformations;
if (suitabilityCheckBox.isSelected()) {
transformations = TransformationCatalog.getTransformationsBySuitability(
originalGraphic.getGeometry().getSpatialReference(), map.getSpatialReference(), mapView.getVisibleArea().getExtent());
} else {
transformations = TransformationCatalog.getTransformationsBySuitability(
originalGraphic.getGeometry().getSpatialReference(), map.getSpatialReference());
}
transformationsListView.getItems().addAll(transformations);
});
// trigger the event to load the initial transformations list when the map is loaded
map.addDoneLoadingListener(() -> suitabilityCheckBox.fireEvent(new ActionEvent()));
// create a button that when clicked, shows a new graphic with the selected transformation applied
Button transformButton = new Button("Transform");
transformButton.setOnAction(e -> {
DatumTransformation transformation = transformationsListView.getSelectionModel().getSelectedItem();
if (transformation != null) {
Point projectedPoint = (Point) GeometryEngine.project(originalGraphic.getGeometry(), mapView.getSpatialReference(),
transformation);
transformedGraphic.setVisible(true);
transformedGraphic.setGeometry(projectedPoint);
}
});
// add the controls to the view
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(300, 500);
controlsVBox.getStyleClass().add("panel-region");
controlsVBox.getChildren().addAll(suitabilityCheckBox, transformationsListView, transformButton);
// add the map view to 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);
}
}