Display grid

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
/*
 * 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_grid;

import javafx.beans.binding.Bindings;
import javafx.fxml.FXML;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ColorPicker;
import javafx.scene.control.ComboBox;
import javafx.scene.paint.Color;

import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.geometry.Point;
import com.esri.arcgisruntime.geometry.SpatialReferences;
import com.esri.arcgisruntime.mapping.ArcGISMap;
import com.esri.arcgisruntime.mapping.BasemapStyle;
import com.esri.arcgisruntime.mapping.Viewpoint;
import com.esri.arcgisruntime.mapping.view.Grid;
import com.esri.arcgisruntime.mapping.view.LatitudeLongitudeGrid;
import com.esri.arcgisruntime.mapping.view.MapView;
import com.esri.arcgisruntime.mapping.view.MgrsGrid;
import com.esri.arcgisruntime.mapping.view.UsngGrid;
import com.esri.arcgisruntime.mapping.view.UtmGrid;
import com.esri.arcgisruntime.symbology.ColorUtil;
import com.esri.arcgisruntime.symbology.LineSymbol;
import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
import com.esri.arcgisruntime.symbology.TextSymbol;

public class DisplayGridController {

  @FXML private MapView mapView;
  @FXML private ComboBox<GridType> gridTypeComboBox;
  @FXML private CheckBox labelsVisibleCheckBox;
  @FXML private CheckBox gridVisibleCheckBox;
  @FXML private ColorPicker gridColorPicker;
  @FXML private ColorPicker labelColorPicker;
  @FXML private ComboBox<Grid.LabelPosition> labelPositionComboBox;
  @FXML private ComboBox<LatitudeLongitudeGrid.LabelFormat> labelFormatComboBox;

  /**
   * Used for combo box.
   */
  private enum GridType {
    LAT_LON, UTM, USNG, MGRS
  }

  public void initialize() {

    // 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 standard imagery basemap style
    ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_IMAGERY_STANDARD);

    // set the map to the map view
    mapView.setMap(map);

    // set a viewpoint on the map view
    mapView.setViewpoint(new Viewpoint(new Point(-10336141.70018318, 5418213.05332071,
      SpatialReferences.getWebMercator()), 6450785));

    // set initial values for options
    gridTypeComboBox.getItems().addAll(GridType.values());
    gridTypeComboBox.setValue(GridType.LAT_LON);
    gridColorPicker.setValue(Color.WHITE);
    labelColorPicker.setValue(Color.RED);
    labelPositionComboBox.getItems().addAll(Grid.LabelPosition.values());
    labelPositionComboBox.setValue(Grid.LabelPosition.TOP_LEFT);
    labelFormatComboBox.getItems().addAll(LatitudeLongitudeGrid.LabelFormat.values());
    labelFormatComboBox.setValue(LatitudeLongitudeGrid.LabelFormat.DECIMAL_DEGREES);

    // label position and format only apply to Lat Lon grid type
    labelPositionComboBox.disableProperty().bind(Bindings.createBooleanBinding(() ->
            gridTypeComboBox.getSelectionModel().getSelectedItem() != GridType.LAT_LON,
        gridTypeComboBox.getSelectionModel().selectedItemProperty())
    );
    labelFormatComboBox.disableProperty().bind(Bindings.createBooleanBinding(() ->
        gridTypeComboBox.getSelectionModel().getSelectedItem() != GridType.LAT_LON,
        gridTypeComboBox.getSelectionModel().selectedItemProperty())
    );

    // update the grid with the default values on start
    updateGrid();
  }

  /**
   * Updates the map view's grid when the "Update" button is clicked.
   */
  @FXML
  private void updateGrid() {
    // grid type
    Grid grid = null;
    switch (gridTypeComboBox.getSelectionModel().getSelectedItem()) {
      case LAT_LON:
        grid = new LatitudeLongitudeGrid();
        break;
      case UTM:
        grid = new UtmGrid();
        break;
      case USNG:
        grid = new UsngGrid();
        break;
      case MGRS:
        grid = new MgrsGrid();
        break;
    }

    // color the grid lines and labels for each grid level
    for (int i = 0; i < grid.getLevelCount(); i++) {
      // grid lines
      LineSymbol gridLineSymbol = new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, ColorUtil.colorToArgb(gridColorPicker
          .getValue()), 1 + i);
      grid.setLineSymbol(i, gridLineSymbol);

      // labels
      TextSymbol labelTextSymbol = new TextSymbol(14, "text", ColorUtil.colorToArgb(labelColorPicker.getValue()),
          TextSymbol.HorizontalAlignment.LEFT, TextSymbol.VerticalAlignment.BOTTOM);
      labelTextSymbol.setHaloColor(0xFFFFFFFF); //white
      labelTextSymbol.setHaloWidth(2 + i);
      grid.setTextSymbol(i, labelTextSymbol);
    }

    // grid visibility
    grid.setVisible(gridVisibleCheckBox.isSelected());

    // label visibility
    grid.setLabelVisible(labelsVisibleCheckBox.isSelected());

    // label position and format
    if (grid instanceof LatitudeLongitudeGrid) {
      grid.setLabelPosition(labelPositionComboBox.getSelectionModel().getSelectedItem());
      ((LatitudeLongitudeGrid) grid).setLabelFormat(labelFormatComboBox.getSelectionModel().getSelectedItem());
    }

    // set the grid
    mapView.setGrid(grid);
  }

  /**
   * Disposes of application resources.
   */
  void terminate() {

    if (mapView != null) {
      mapView.dispose();
    }
  }

}