Display KML

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
/*
 * 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.display_kml;

import java.io.File;

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.ComboBox;
import javafx.scene.control.ProgressIndicator;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.geometry.Envelope;
import com.esri.arcgisruntime.geometry.SpatialReferences;
import com.esri.arcgisruntime.layers.KmlLayer;
import com.esri.arcgisruntime.loadable.LoadStatus;
import com.esri.arcgisruntime.mapping.ArcGISMap;
import com.esri.arcgisruntime.mapping.BasemapStyle;
import com.esri.arcgisruntime.mapping.view.MapView;
import com.esri.arcgisruntime.ogc.kml.KmlDataset;
import com.esri.arcgisruntime.portal.Portal;
import com.esri.arcgisruntime.portal.PortalItem;

public class DisplayKMLSample 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("Display KML 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 progress indicator
      ProgressIndicator progressIndicator = new ProgressIndicator();
      progressIndicator.setVisible(false);

      // create a map with the dark gray basemap style
      ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_DARK_GRAY);

      // create a map view and set the map to it
      mapView = new MapView();
      mapView.setMap(map);

      // start zoomed in over the US
      mapView.setViewpointGeometryAsync(new Envelope(-19195297.778679, 512343.939994, -3620418.579987, 8658913.035426, 0.0, 0.0, SpatialReferences.getWebMercator()));

      // show a combo box with the different KML data source options
      ComboBox<KmlDatasourceType> kmlSourceComboBox = new ComboBox<>();
      kmlSourceComboBox.getItems().addAll(KmlDatasourceType.values());

      // show the KML layer when the data source option is shown
      kmlSourceComboBox.getSelectionModel().selectedItemProperty().addListener(o -> {

        // show a progress indicator while loading
        progressIndicator.setVisible(true);

        // clear previous layer
        map.getOperationalLayers().clear();
        // create a KML layer based on the source type
        KmlDatasourceType kmlSourceType = kmlSourceComboBox.getSelectionModel().getSelectedItem();
        try {
          KmlLayer kmlLayer = null;
          switch (kmlSourceType) {
            case URL:
              KmlDataset urlKmlDataset = new KmlDataset("https://www.wpc.ncep.noaa.gov/kml/noaa_chart/WPC_Day1_SigWx.kml");
              kmlLayer = new KmlLayer(urlKmlDataset);
              break;
            case PORTAL_ITEM:
              Portal portal = new Portal("https://arcgisruntime.maps.arcgis.com");
              PortalItem portalItem = new PortalItem(portal, "9fe0b1bfdcd64c83bd77ea0452c76253");
              kmlLayer = new KmlLayer(portalItem);
              break;
            case LOCAL_FILE:
              File kmlFile = new File(System.getProperty("data.dir"), "./samples-data/kml/US_State_Capitals.kml");
              KmlDataset fileKmlDataset = new KmlDataset(kmlFile.getAbsolutePath());
              kmlLayer = new KmlLayer(fileKmlDataset);
              break;
          }
          // add the KML layer as an operational layer
          map.getOperationalLayers().add(kmlLayer);

          KmlLayer finalKmlLayer = kmlLayer;
          kmlLayer.addDoneLoadingListener(() -> {

            progressIndicator.setVisible(false);

            if (finalKmlLayer.getLoadStatus() != LoadStatus.LOADED) {
              new Alert(Alert.AlertType.ERROR, "Error loading KML layer").show();
            }
          });
        } catch (Exception e) {
          new Alert(Alert.AlertType.ERROR, "Error creating KML layer").show();
        }
      });

      // start with the URL data source chosen
      kmlSourceComboBox.getSelectionModel().select(0);

      // add the map view to stack pane
      stackPane.getChildren().addAll(mapView, kmlSourceComboBox, progressIndicator);
      StackPane.setAlignment(kmlSourceComboBox, Pos.TOP_LEFT);
      StackPane.setMargin(kmlSourceComboBox, new Insets(10));
    } catch (Exception e) {
      // on any error, display the stack trace.
      e.printStackTrace();
    }
  }

  private enum KmlDatasourceType {
    URL, PORTAL_ITEM, LOCAL_FILE
  }

  /**
   * 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);
  }

}