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Raster Colorization

Raster colorization using raster-color.
RasterColorizationActivity.kt
package com.mapbox.maps.testapp.examples.style

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import com.mapbox.maps.MapView
import com.mapbox.maps.extension.style.expressions.dsl.generated.interpolate
import com.mapbox.maps.extension.style.expressions.generated.Expression
import com.mapbox.maps.extension.style.layers.generated.backgroundLayer
import com.mapbox.maps.extension.style.layers.generated.rasterLayer
import com.mapbox.maps.extension.style.sources.generated.rasterSource
import com.mapbox.maps.extension.style.style

/**
* Example of raster colorization using raster-color property.
*/
class RasterColorizationActivity : AppCompatActivity() {

override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val mapView = MapView(this)
setContentView(mapView)
mapView.mapboxMap
.apply {
loadStyle(
styleExtension = style {
+rasterSource(RASTER_SOURCE_ID) {
url("mapbox://mapbox.terrain-rgb")
tileSize(256)
}

+backgroundLayer(BACKGROUND_LAYER_ID) {
backgroundColor(Expression.rgb(4.0, 7.0, 14.0))
}
+rasterLayer(RASTER_LAYER_ID, RASTER_SOURCE_ID) {
rasterColor(
interpolate {
linear()
rasterValue()
stop {
literal(35.392)
rgb(48.0, 167.0, 228.0)
}
stop {
literal(44.24)
rgb(57.0, 143.0, 83.0)
}
stop {
literal(274.288)
rgb(116.0, 166.0, 129.0)
}
stop {
literal(486.64)
rgb(178.0, 205.0, 174.0)
}
stop {
literal(672.448)
rgb(188.0, 195.0, 169.0)
}
stop {
literal(955.584)
rgb(221.0, 207.0, 153.0)
}
stop {
literal(1353.744)
rgb(211.0, 174.0, 114.0)
}
stop {
literal(1813.84)
rgb(207.0, 155.0, 103.0)
}
stop {
literal(2450.896)
rgb(179.0, 120.0, 85.0)
}
stop {
literal(3318)
rgb(227.0, 210.0, 197.0)
}
stop {
literal(5839.68)
rgb(255.0, 255.0, 255.0)
}
}
)
rasterColorMix(
listOf(
1667721.6,
6553.6,
25.6,
-10000.0
)
)
rasterColorRange(listOf(0.0, 8848.0))
}
}
)
}
}

companion object {
private const val RASTER_SOURCE_ID = "raster-source-id"
private const val BACKGROUND_LAYER_ID = "background-layer-id"
private const val RASTER_LAYER_ID = "raster-layer-id"
}
}
この{Type}は役に立ちましたか?