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
/* Copyright 2022 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.arcgismaps.sample.clipgeometry
import android.os.Bundle
import android.widget.Button
import androidx.appcompat.app.AppCompatActivity
import androidx.databinding.DataBindingUtil
import com.arcgismaps.ApiKey
import com.arcgismaps.ArcGISEnvironment
import com.arcgismaps.Color
import com.arcgismaps.geometry.Envelope
import com.arcgismaps.geometry.GeometryEngine
import com.arcgismaps.geometry.Point
import com.arcgismaps.mapping.ArcGISMap
import com.arcgismaps.mapping.BasemapStyle
import com.arcgismaps.mapping.Viewpoint
import com.arcgismaps.mapping.symbology.SimpleFillSymbol
import com.arcgismaps.mapping.symbology.SimpleFillSymbolStyle
import com.arcgismaps.mapping.symbology.SimpleLineSymbol
import com.arcgismaps.mapping.symbology.SimpleLineSymbolStyle
import com.arcgismaps.mapping.view.Graphic
import com.arcgismaps.mapping.view.GraphicsOverlay
import com.esri.arcgismaps.sample.clipgeometry.databinding.ActivityMainBinding
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
// authentication with an API key or named user is
// required to access basemaps and other location services
ArcGISEnvironment.apiKey = ApiKey.create(BuildConfig.API_KEY)
// set up data binding for the activity
val activityMainBinding: ActivityMainBinding =
DataBindingUtil.setContentView(this, R.layout.activity_main)
// get the MapView instance from the data binding
val mapView = activityMainBinding.mapView
lifecycle.addObserver(mapView)
// create and add a map with a topographic basemap style
mapView.map = ArcGISMap(BasemapStyle.ArcGISTopographic)
// set the viewpoint of the MapView
mapView.setViewpoint(Viewpoint(40.0, -106.0, 10000000.0))
// create a graphics overlay to contain the geometry to clip
val graphicsOverlay = GraphicsOverlay()
mapView.graphicsOverlays.add(graphicsOverlay)
// create a blue graphic of Colorado
val colorado = Envelope(
Point(-11362327.128340, 5012861.290274),
Point(-12138232.018408, 4441198.773776)
)
val fillSymbol = SimpleFillSymbol(
SimpleFillSymbolStyle.Solid,
Color(R.color.transparentDarkBlue),
SimpleLineSymbol(SimpleLineSymbolStyle.Solid, Color.green, 2f)
)
val coloradoGraphic = Graphic(colorado, fillSymbol)
graphicsOverlay.graphics.add(coloradoGraphic)
// create a graphics overlay to contain the clipping envelopes
val envelopesOverlay = GraphicsOverlay()
mapView.graphicsOverlays.add(envelopesOverlay)
// create a dotted red outline symbol
val redOutline = SimpleLineSymbol(SimpleLineSymbolStyle.Dot, Color.red, 3f)
// create a envelope outside Colorado
val outsideEnvelope = Envelope(
Point(-11858344.321294, 5147942.225174),
Point(-12201990.219681, 5297071.577304)
)
val outside = Graphic(outsideEnvelope, redOutline)
envelopesOverlay.graphics.add(outside)
// create a envelope intersecting Colorado
val intersectingEnvelope = Envelope(
Point(-11962086.479298, 4566553.881363),
Point(-12260345.183558, 4332053.378376)
)
val intersecting = Graphic(intersectingEnvelope, redOutline)
envelopesOverlay.graphics.add(intersecting)
// create a envelope inside Colorado
val containedEnvelope = Envelope(
Point(-11655182.595204, 4741618.772994),
Point(-11431488.567009, 4593570.068343)
)
val contained = Graphic(containedEnvelope, redOutline)
envelopesOverlay.graphics.add(contained)
// create a graphics overlay to contain the clipped areas
val clipAreasOverlay = GraphicsOverlay()
mapView.graphicsOverlays.add(clipAreasOverlay)
// create a button to perform the clip operation
val clipButton: Button = findViewById(R.id.clipButton)
clipButton.setOnClickListener {
// disable button
clipButton.isEnabled = false
// for each envelope, clip the Colorado geometry and show the result,
// replacing the original Colorado graphic
coloradoGraphic.isVisible = false
for (graphic in envelopesOverlay.graphics) {
val geometry =
coloradoGraphic.geometry?.let { coloradoGeometry ->
GeometryEngine.clip(coloradoGeometry, graphic.geometry as Envelope)
}
val clippedGraphic = Graphic(geometry, fillSymbol)
clipAreasOverlay.graphics.add(clippedGraphic)
}
}
}
}