-
Notifications
You must be signed in to change notification settings - Fork 45
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #572 from s22s/feature/slippy
Slippy map writing support.
- Loading branch information
Showing
12 changed files
with
693 additions
and
51 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| <!DOCTYPE html> | ||
| <!-- | ||
| ~ This software is licensed under the Apache 2 license, quoted below. | ||
| ~ | ||
| ~ Copyright 2021 Astraea. Inc. | ||
| ~ | ||
| ~ 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. | ||
| ~ | ||
| ~ | ||
| --> | ||
|
|
||
| <html lang="en"> | ||
| <head> | ||
| <title>RasterFrames Rendering</title> | ||
| <meta charset="utf-8" /> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1.0"/> | ||
| <meta property="eai:center" content="(${viewLat},${viewLon})"/> | ||
| <meta property="eai:maxZoom" content="${maxNativeZoom}"/> | ||
| <link rel="stylesheet" href="https://unpkg.com/leaflet@1.3.1/dist/leaflet.css" integrity="sha512-Rksm5RenBEKSKFjgI3a41vrjkw4EVPlJ3+OiI65vTjIdo9brlAacEuKOiQ5OFh7cOI1bkDwLqdLw3Zg0cRJAAQ==" crossorigin=""/> | ||
| <script src="https://unpkg.com/leaflet@1.3.1/dist/leaflet.js" integrity="sha512-/Nsx9X4HebavoBvEBuyp3I7od5tA0UzAxs+j83KgC8PU0kgB4XiK4Lfe4y4cgBtaRJQEIFCW+oC506aPT2L1zw==" crossorigin=""></script> | ||
| <link rel="stylesheet" href="https://unpkg.com/leaflet-control-geocoder/dist/Control.Geocoder.css" /> | ||
| <script src="https://unpkg.com/leaflet-control-geocoder/dist/Control.Geocoder.js"></script> | ||
| <style> | ||
| #mapid { | ||
| position: absolute; | ||
| top: 10px; | ||
| bottom: 10px; | ||
| left: 10px; | ||
| right: 10px; | ||
| } | ||
| </style> | ||
| </head> | ||
| <body> | ||
|
|
||
| <div id="mapid"></div> | ||
|
|
||
| <script> | ||
|
|
||
| var map = L.map('mapid') | ||
| .setView([${viewLat}, ${viewLon}], ${maxNativeZoom}); | ||
|
|
||
| L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'}).addTo(map); | ||
|
|
||
| L.tileLayer( | ||
| '{z}/{x}/{y}.png', { | ||
| maxZoom: 18, | ||
| maxNativeZoom: ${maxNativeZoom} | ||
| } | ||
| ).addTo(map); | ||
|
|
||
| L.control.scale().addTo(map); | ||
|
|
||
| L.Control.geocoder().addTo(map); | ||
|
|
||
| var popup = L.popup(); | ||
|
|
||
| function showPos(e) { | ||
| popup | ||
| .setLatLng(e.latlng) | ||
| .setContent(e.latlng.toString()) | ||
| .openOn(map); | ||
| } | ||
|
|
||
| map.on('click', showPos); | ||
| </script> | ||
| </body> | ||
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
170 changes: 170 additions & 0 deletions
170
...rc/main/scala/org/locationtech/rasterframes/datasource/slippy/DataFrameSlippyExport.scala
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,170 @@ | ||
| /* | ||
| * Copyright (c) 2020 Astraea, Inc. All right reserved. | ||
| */ | ||
|
|
||
| package org.locationtech.rasterframes.datasource.slippy | ||
|
|
||
| import geotrellis.layer.{SpatialKey, TileLayerMetadata, ZoomedLayoutScheme} | ||
| import geotrellis.proj4.{LatLng, WebMercator} | ||
| import geotrellis.raster._ | ||
| import geotrellis.raster.render.ColorRamp | ||
| import geotrellis.raster.resample.Bilinear | ||
| import geotrellis.spark._ | ||
| import geotrellis.spark.pyramid.Pyramid | ||
| import geotrellis.spark.store.slippy.HadoopSlippyTileWriter | ||
| import geotrellis.vector.reproject.Implicits._ | ||
| import org.apache.commons.text.StringSubstitutor | ||
| import org.apache.hadoop.fs.{FileSystem, Path} | ||
| import org.apache.spark.sql.{DataFrame, SparkSession} | ||
| import org.locationtech.rasterframes.encoders.StandardEncoders | ||
| import org.locationtech.rasterframes.expressions.aggregates.ProjectedLayerMetadataAggregate | ||
| import org.locationtech.rasterframes.util.withResource | ||
| import org.locationtech.rasterframes.{rf_agg_approx_histogram, _} | ||
| import org.locationtech.rasterframes.datasource._ | ||
|
|
||
| import java.io.PrintStream | ||
| import java.net.URI | ||
| import java.nio.file.Paths | ||
| import scala.io.Source | ||
| import RenderingProfiles._ | ||
| import org.locationtech.rasterframes.datasource.slippy.RenderingModes.{RenderingMode, Uniform} | ||
|
|
||
| object DataFrameSlippyExport extends StandardEncoders { | ||
| val destCRS = WebMercator | ||
|
|
||
| /** | ||
| * Export tiles as a slippy map. | ||
| * NB: Temporal components are ignored blindly. | ||
| * | ||
| * @param dest URI for Hadoop supported storage endpoint (e.g. 'file://', 'hdfs://', etc.). | ||
| * @param profile Rendering profile | ||
| */ | ||
| def writeSlippyTiles(df: DataFrame, dest: URI, profile: Profile): SlippyResult = { | ||
|
|
||
| val spark = df.sparkSession | ||
| implicit val sc = spark.sparkContext | ||
|
|
||
| val outputPath: String = dest.toASCIIString | ||
|
|
||
| require( | ||
| df.tileColumns.length >= profile.expectedBands, // TODO: Do we want to allow this greater than case? Warn the user? | ||
| s"Selected rendering mode '${profile}' expected ${profile.expectedBands} bands.") | ||
|
|
||
| // select only the tile columns given by user and crs, extent columns which are fallback if first `column` is not a PRT | ||
| val SpatialComponents(crs, extent, dims, cellType) = projectSpatialComponents(df) | ||
| .getOrElse( | ||
| throw new IllegalArgumentException("Provided dataframe did not have an Extent and/or CRS")) | ||
|
|
||
| val tlm: TileLayerMetadata[SpatialKey] = | ||
| df.select( | ||
| ProjectedLayerMetadataAggregate( | ||
| destCRS, | ||
| extent, | ||
| crs, | ||
| cellType, | ||
| dims | ||
| ) | ||
| ) | ||
| .first() | ||
|
|
||
| val rfLayer = df | ||
| .toLayer(tlm) | ||
| // TODO: this should be fixed in RasterFrames | ||
| .na | ||
| .drop() | ||
| .persist() | ||
| .asInstanceOf[RasterFrameLayer] | ||
|
|
||
| val inputRDD: MultibandTileLayerRDD[SpatialKey] = | ||
| rfLayer.toMultibandTileLayerRDD match { | ||
| case Left(spatial) => spatial | ||
| case Right(_) => | ||
| throw new NotImplementedError( | ||
| "Dataframes with multiple temporal values are not yet supported.") | ||
| } | ||
|
|
||
| val tileColumns = rfLayer.tileColumns | ||
|
|
||
| val rp = profile match { | ||
| case up: UniformColorRampProfile => | ||
| val hist = rfLayer | ||
| .select(rf_agg_approx_histogram(tileColumns.head)) | ||
| .first() | ||
| up.toResolvedProfile(hist) | ||
| case up: UniformRGBColorProfile => | ||
| require(tileColumns.length >= 3) | ||
| val stats = rfLayer | ||
| .select( | ||
| rf_agg_stats(tileColumns(0)), | ||
| rf_agg_stats(tileColumns(1)), | ||
| rf_agg_stats(tileColumns(2))) | ||
| .first() | ||
| up.toResolvedProfile(stats._1, stats._2, stats._3) | ||
| case o => o | ||
| } | ||
|
|
||
| val layoutScheme = ZoomedLayoutScheme(WebMercator, tileSize = 256) | ||
|
|
||
| val (zoom, reprojected) = inputRDD.reproject(WebMercator, layoutScheme, Bilinear) | ||
| val renderer = (_: SpatialKey, tile: MultibandTile) => rp.render(tile).bytes | ||
| val writer = new HadoopSlippyTileWriter[MultibandTile](outputPath, "png")(renderer) | ||
|
|
||
| // Pyramiding up the zoom levels, write our tiles out to the local file system. | ||
| Pyramid.upLevels(reprojected, layoutScheme, zoom, Bilinear) { (rdd, z) => | ||
| writer.write(z, rdd) | ||
| } | ||
|
|
||
| rfLayer.unpersist() | ||
|
|
||
| val center = reprojected.metadata.extent.center | ||
| .reproject(WebMercator, LatLng) | ||
|
|
||
| SlippyResult(dest, center.getY, center.getX, zoom) | ||
| } | ||
|
|
||
| def writeSlippyTiles(df: DataFrame, dest: URI, renderingMode: RenderingMode): SlippyResult = { | ||
|
|
||
| val profile = (df.tileColumns.length, renderingMode) match { | ||
| case (1, Uniform) => UniformColorRampProfile(greyscale) | ||
| case (_, Uniform) => UniformRGBColorProfile() | ||
| case (1, _) => ColorRampProfile(greyscale) | ||
| case _ => RGBColorProfile() | ||
| } | ||
| writeSlippyTiles(df, dest, profile) | ||
| } | ||
|
|
||
| def writeSlippyTiles(df: DataFrame, dest: URI, colorRamp: ColorRamp, renderingMode: RenderingMode): SlippyResult = { | ||
| val profile = renderingMode match { | ||
| case Uniform ⇒ UniformColorRampProfile(colorRamp) | ||
| case _ ⇒ ColorRampProfile(colorRamp) | ||
| } | ||
| writeSlippyTiles(df, dest, profile) | ||
| } | ||
|
|
||
| case class SlippyResult(dest: URI, centerLat: Double, centerLon: Double, maxZoom: Int) { | ||
| // for python interop | ||
| def outputUrl(): String = dest.toASCIIString | ||
|
|
||
| def writeHtml(spark: SparkSession): Unit = { | ||
| import java.util.{HashMap => JMap} | ||
|
|
||
| val subst = new StringSubstitutor(new JMap[String, String]() { | ||
| put("maxNativeZoom", maxZoom.toString) | ||
| put("id", Paths.get(dest.getPath).getFileName.toString) | ||
| put("viewLat", centerLat.toString) | ||
| put("viewLon", centerLon.toString) | ||
| }) | ||
|
|
||
| val rawLines = Source.fromInputStream(getClass.getResourceAsStream("/slippy.html")).getLines() | ||
|
|
||
| val fs = FileSystem.get(dest, spark.sparkContext.hadoopConfiguration) | ||
|
|
||
| withResource(fs.create(new Path(new Path(dest), "index.html"), true)) { hout => | ||
| val out = new PrintStream(hout, true, "UTF-8") | ||
| for (line <- rawLines) { | ||
| out.println(subst.replace(line)) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
Oops, something went wrong.