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arcgis android 开发

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Android Studio 项目配置

首先配置项目gradle

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allprojects {
    repositories {
        ...
        maven {
            url 'https://esri.jfrog.io/artifactory/arcgis'
        }
    }
}

然后配置模块gradle

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android {
    buildFeatures {
        viewBinding true
    }
    packagingOptions {
        exclude 'META-INF/DEPENDENCIES.txt'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/notice.txt'
        exclude 'META-INF/license.txt'
        exclude 'META-INF/dependencies.txt'
        exclude 'META-INF/LGPL2.1'
    }
}
dependencies {
	implementation 'com.esri.arcgisruntime:arcgis-android:100.12.0'
}

然后更改manifests
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<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-feature
	android:glEsVersion="0x00030000"
	android:required="true" />
<application
	android:allowBackup="true"
	android:icon="@mipmap/ic_launcher"
	android:label="@string/app_name"
	android:roundIcon="@mipmap/ic_launcher_round"
	android:supportsRtl="true"
	android:theme="@style/Theme.TestArcGIS3D">
	<activity android:name=".MainActivity">
		<intent-filter>
			<action android:name="android.intent.action.MAIN" />

			<category android:name="android.intent.category.LAUNCHER" />
		</intent-filter>
	</activity>
</application>

三维部分

必要元素

scene 和 camera

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val scene = ArcGISScene(Basemap.createImagery())
sceneView.scene = scene
val cameraLocation = Point(86.5, 28.5, 15000.0, SpatialReferences.getWgs84())
// Camera(location, heading, pitch, roll)
val camera = Camera(cameraLocation, 344.0, 72.0, 0.0)
this.camera = camera
sceneView.setViewpointCamera(camera)

加载自定义底图

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val rasterFilePath = Environment.getExternalStorageDirectory().path + "/raster/google.tif"
val raster = Raster(rasterFilePath)
val rasterLayer = RasterLayer(raster)
val map = Basemap(rasterLayer)
scene.basemap = map

加载自定义dem

由于是loadable接口子类，需要设置回调来加载

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val path = Environment.getExternalStorageDirectory().path + "/raster/test.tif"
val filePaths = ArrayList<String>()
filePaths.add(path)

try {
	with(RasterElevationSource(filePaths)) {
		this.addLoadStatusChangedListener { loadStatusChangedEvent ->
			if ( loadStatusChangedEvent.newLoadStatus == LoadStatus.LOADED ){
				sceneView.scene.baseSurface.elevationSources.add(this)
				Log.d(tag, "loaded dem")
			} else if (loadStatusChangedEvent.newLoadStatus == LoadStatus.FAILED_TO_LOAD) {
				Log.d(tag, "load dem failed")
			}
		}
		this.loadAsync()
	}
} catch (e: IllegalAccessException) {
	Log.d(tag, "load dem failed")
}

添加点

有五种放置方式分别是
- DRAPED_FLAT
- DRAPED_BILLBOARDED
- RELATIVE
- ABSOLUTE
- RELATIVE_TO_SCENE

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val sceneRelatedPoint = Point(
	86.5,28.5, 70.0,
	this.camera.location.spatialReference
)
val triangleSymbol = SimpleMarkerSymbol(SimpleMarkerSymbol.Style.TRIANGLE, Color.RED, 10f)
val drapedFlatText = TextSymbol(
	15F, "DRAPED FLAT", Color.MAGENTA, TextSymbol.HorizontalAlignment.LEFT,
	TextSymbol.VerticalAlignment.TOP
).apply {
	offsetY = 20f
}
val drapedFlatOverlay = GraphicsOverlay().apply {
	sceneProperties.surfacePlacement = LayerSceneProperties.SurfacePlacement.DRAPED_FLAT
	graphics.addAll(
		arrayOf(
			Graphic(surfaceRelatedPoint, triangleSymbol),
			Graphic(surfaceRelatedPoint, drapedFlatText)
		)
	)
}
sceneView.graphicsOverlays.addAll(
	arrayOf(
		drapedFlatOverlay,
	)
)

其他待完善