Cut geometry

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
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
// [WriteFile Name=CutGeometry, Category=Geometry]
// [Legal]
// 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.
// [Legal]

import QtQuick 2.6
import QtQuick.Controls 2.2
import Esri.ArcGISRuntime 100.15

Rectangle {
    clip: true
    width: 800
    height: 600

    MapView {
        id: mapView
        anchors.fill: parent

        Component.onCompleted: {
            // Set the focus on MapView to initially enable keyboard navigation
            forceActiveFocus();
        }

        Map {
            Basemap {
                initStyle: Enums.BasemapStyleArcGISTopographic
            }

            onLoadStatusChanged: {
                if (loadStatus === Enums.LoadStatusLoaded) {
                    borderGraphic.geometry = createBorder();
                    lakeSuperiorGraphic.geometry = createLakeSuperiorPolygon();
                    mapView.setViewpointGeometry(lakeSuperiorGraphic.geometry);
                }
            }
        }

        // Display Graphics of Lake Superior and the U.S./Canada border
        GraphicsOverlay {
            id: graphicsOverlay

            // Lake Superior
            Graphic {
                id: lakeSuperiorGraphic

                SimpleFillSymbol {
                    style: Enums.SimpleFillSymbolStyleSolid
                    color: Qt.rgba(0.78, 0.8, 1, 0.7)

                    // outline
                    SimpleLineSymbol {
                        style: Enums.SimpleLineSymbolStyleSolid
                        color: "blue"
                        width: 1
                    }
                }
            }

            // U.S. / Canada Border
            Graphic {
                id: borderGraphic
                zIndex: 10

                SimpleLineSymbol {
                    style: Enums.SimpleLineSymbolStyleDot
                    color: "red"
                    width: 5
                }
            }
        }
    }

    Button {
        id: cutButton
        anchors {
            left: parent.left
            top: parent.top
            margins: 10
        }

        text: "Cut"
        onClicked: cutPolygon();
    }

    SpatialReference {
        id: spatialRef
        wkid: 3857
    }

    // Cuts the Lake Superior polygon into two and symbolizes each output graphic
    function cutPolygon() {
        // cut the polygon geometry with the polyline, expect two geometries
        const geoms = GeometryEngine.cut(lakeSuperiorGraphic.geometry, borderGraphic.geometry);

        // create graphics for the U.S. side
        const usSide = ArcGISRuntimeEnvironment.createObject("Graphic");
        usSide.geometry = geoms[0];
        const usSymbol = ArcGISRuntimeEnvironment.createObject("SimpleFillSymbol");
        usSymbol.style = Enums.SimpleFillSymbolStyleForwardDiagonal;
        usSymbol.color = "#40ff00";
        const outlineSymbol = ArcGISRuntimeEnvironment.createObject("SimpleLineSymbol");
        outlineSymbol.color = "blue";
        outlineSymbol.width = 1;
        usSymbol.outline = outlineSymbol;
        usSide.symbol = usSymbol;

        // create graphics for the Canada side
        const canadaSide = ArcGISRuntimeEnvironment.createObject("Graphic");
        canadaSide.geometry = geoms[1];
        const canadaSymbol = ArcGISRuntimeEnvironment.createObject("SimpleFillSymbol");
        canadaSymbol.style = Enums.SimpleFillSymbolStyleForwardDiagonal;
        canadaSymbol.color = "#ffff00";
        canadaSymbol.outline = outlineSymbol;
        canadaSide.symbol = canadaSymbol;

        // add graphics
        graphicsOverlay.graphics.append(canadaSide);
        graphicsOverlay.graphics.append(usSide);

        // disable button (only cut once)
        cutButton.enabled = false;
    }

    // Creates a line between the border of Canada and the United States
    function createBorder() {
        const polylineBuilder = ArcGISRuntimeEnvironment.createObject("PolylineBuilder", { spatialReference: spatialRef });
        polylineBuilder.addPointXY(-9981328.687124, 6111053.281447);
        polylineBuilder.addPointXY(-9946518.044066, 6102350.620682);
        polylineBuilder.addPointXY(-9872545.427566, 6152390.920079);
        polylineBuilder.addPointXY(-9838822.617103, 6157830.083057);
        polylineBuilder.addPointXY(-9446115.050097, 5927209.572793);
        polylineBuilder.addPointXY(-9430885.393759, 5876081.440801);
        polylineBuilder.addPointXY(-9415655.737420, 5860851.784463);
        return polylineBuilder.geometry;
    }

    // Creates a polygon of Lake Superior
    function createLakeSuperiorPolygon() {
        const polygonBuilder = ArcGISRuntimeEnvironment.createObject("PolygonBuilder", { spatialReference: spatialRef });
        polygonBuilder.addPointXY(-10254374.668616, 5908345.076380);
        polygonBuilder.addPointXY(-10178382.525314, 5971402.386779);
        polygonBuilder.addPointXY(-10118558.923141, 6034459.697178);
        polygonBuilder.addPointXY(-9993252.729399, 6093474.872295);
        polygonBuilder.addPointXY(-9882498.222673, 6209888.368416);
        polygonBuilder.addPointXY(-9821057.766387, 6274562.532928);
        polygonBuilder.addPointXY(-9690092.583250, 6241417.023616);
        polygonBuilder.addPointXY(-9605207.742329, 6206654.660191);
        polygonBuilder.addPointXY(-9564786.389509, 6108834.986367);
        polygonBuilder.addPointXY(-9449989.747500, 6095091.726408);
        polygonBuilder.addPointXY(-9462116.153346, 6044160.821855);
        polygonBuilder.addPointXY(-9417652.665244, 5985145.646738);
        polygonBuilder.addPointXY(-9438671.768711, 5946341.148031);
        polygonBuilder.addPointXY(-9398250.415891, 5922088.336339);
        polygonBuilder.addPointXY(-9419269.519357, 5855797.317714);
        polygonBuilder.addPointXY(-9467775.142741, 5858222.598884);
        polygonBuilder.addPointXY(-9462924.580403, 5902686.086985);
        polygonBuilder.addPointXY(-9598740.325877, 5884092.264688);
        polygonBuilder.addPointXY(-9643203.813979, 5845287.765981);
        polygonBuilder.addPointXY(-9739406.633691, 5879241.702350);
        polygonBuilder.addPointXY(-9783061.694736, 5922896.763395);
        polygonBuilder.addPointXY(-9844502.151022, 5936640.023354);
        polygonBuilder.addPointXY(-9773360.570059, 6019099.583107);
        polygonBuilder.addPointXY(-9883306.649729, 5968977.105610);
        polygonBuilder.addPointXY(-9957681.938918, 5912387.211662);
        polygonBuilder.addPointXY(-10055501.612742, 5871965.858842);
        polygonBuilder.addPointXY(-10116942.069028, 5884092.264688);
        polygonBuilder.addPointXY(-10111283.079633, 5933406.315128);
        polygonBuilder.addPointXY(-10214761.742852, 5888134.399970);
        polygonBuilder.addPointXY(-10254374.668616, 5901877.659929);
        return polygonBuilder.geometry;
    }
}