WebWorldWind/examples/GeoJSON.js
2020-08-12 17:28:51 -05:00

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/*
* Copyright 2003-2006, 2009, 2017, 2020 United States Government, as represented
* by the Administrator of the National Aeronautics and Space Administration.
* All rights reserved.
*
* The NASAWorldWind/WebWorldWind platform is 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.
*
* NASAWorldWind/WebWorldWind also contains the following 3rd party Open Source
* software:
*
* ES6-Promise under MIT License
* libtess.js SGI Free Software License B
* Proj4 under MIT License
* JSZip under MIT License
*
* A complete listing of 3rd Party software notices and licenses included in
* WebWorldWind can be found in the WebWorldWind 3rd-party notices and licenses
* PDF found in code directory.
*/
/**
* Illustrates how to load and display GeoJSON data.
*/
requirejs(['./WorldWindShim',
'./LayerManager'],
function (WorldWind,
LayerManager) {
"use strict";
// Tell WorldWind to log only warnings and errors.
WorldWind.Logger.setLoggingLevel(WorldWind.Logger.LEVEL_WARNING);
// Create the WorldWindow.
var wwd = new WorldWind.WorldWindow("canvasOne");
// Create and add layers to the WorldWindow.
var layers = [
// Imagery layers.
{layer: new WorldWind.BMNGLayer(), enabled: true},
// Add atmosphere layer on top of base layer.
{layer: new WorldWind.AtmosphereLayer(), enabled: true},
// WorldWindow UI layers.
{layer: new WorldWind.CompassLayer(), enabled: true},
{layer: new WorldWind.CoordinatesDisplayLayer(wwd), enabled: true},
{layer: new WorldWind.ViewControlsLayer(wwd), enabled: true}
];
for (var l = 0; l < layers.length; l++) {
layers[l].layer.enabled = layers[l].enabled;
wwd.addLayer(layers[l].layer);
}
// Set up the common placemark attributes.
var placemarkAttributes = new WorldWind.PlacemarkAttributes(null);
placemarkAttributes.imageScale = 0.05;
placemarkAttributes.imageColor = WorldWind.Color.WHITE;
placemarkAttributes.labelAttributes.offset = new WorldWind.Offset(
WorldWind.OFFSET_FRACTION, 0.5,
WorldWind.OFFSET_FRACTION, 1.5);
placemarkAttributes.imageSource = WorldWind.configuration.baseUrl + "images/white-dot.png";
var shapeConfigurationCallback = function (geometry, properties) {
var configuration = {};
if (geometry.isPointType() || geometry.isMultiPointType()) {
configuration.attributes = new WorldWind.PlacemarkAttributes(placemarkAttributes);
if (properties && (properties.name || properties.Name || properties.NAME)) {
configuration.name = properties.name || properties.Name || properties.NAME;
}
if (properties && properties.POP_MAX) {
var population = properties.POP_MAX;
configuration.attributes.imageScale = 0.01 * Math.log(population);
}
}
else if (geometry.isLineStringType() || geometry.isMultiLineStringType()) {
configuration.attributes = new WorldWind.ShapeAttributes(null);
configuration.attributes.drawOutline = true;
configuration.attributes.outlineColor = new WorldWind.Color(
0.1 * configuration.attributes.interiorColor.red,
0.3 * configuration.attributes.interiorColor.green,
0.7 * configuration.attributes.interiorColor.blue,
1.0);
configuration.attributes.outlineWidth = 2.0;
}
else if (geometry.isPolygonType() || geometry.isMultiPolygonType()) {
configuration.attributes = new WorldWind.ShapeAttributes(null);
// Fill the polygon with a random pastel color.
configuration.attributes.interiorColor = new WorldWind.Color(
0.375 + 0.5 * Math.random(),
0.375 + 0.5 * Math.random(),
0.375 + 0.5 * Math.random(),
0.5);
// Paint the outline in a darker variant of the interior color.
configuration.attributes.outlineColor = new WorldWind.Color(
0.5 * configuration.attributes.interiorColor.red,
0.5 * configuration.attributes.interiorColor.green,
0.5 * configuration.attributes.interiorColor.blue,
1.0);
}
return configuration;
};
var parserCompletionCallback = function (layer) {
wwd.addLayer(layer);
layerManager.synchronizeLayerList();
};
var resourcesUrl = "https://worldwind.arc.nasa.gov/web/examples/data/geojson-data/";
// Polygon test
var polygonLayer = new WorldWind.RenderableLayer("Polygon - Romania");
var polygonGeoJSON = new WorldWind.GeoJSONParser(resourcesUrl + "PolygonTest.geojson");
polygonGeoJSON.load(null, shapeConfigurationCallback, polygonLayer);
wwd.addLayer(polygonLayer);
// MultiPolygon test
var multiPolygonLayer = new WorldWind.RenderableLayer("MultiPolygon - Italy");
var multiPolygonGeoJSON = new WorldWind.GeoJSONParser(resourcesUrl + "MultiPolygonTest.geojson");
multiPolygonGeoJSON.load(null, shapeConfigurationCallback, multiPolygonLayer);
wwd.addLayer(multiPolygonLayer);
//Point test
var pointLayer = new WorldWind.RenderableLayer("Point - Bucharest");
var pointGeoJSON = new WorldWind.GeoJSONParser(resourcesUrl + "PointTest.geojson");
pointGeoJSON.load(null, shapeConfigurationCallback, pointLayer);
wwd.addLayer(pointLayer);
//MultiPoint test
var multiPointLayer = new WorldWind.RenderableLayer("MultiPoint - Italy");
var multiPointGeoJSON = new WorldWind.GeoJSONParser(resourcesUrl + "MultiPointTest.geojson");
multiPointGeoJSON.load(null, shapeConfigurationCallback, multiPointLayer);
wwd.addLayer(multiPointLayer);
//LineString test
var lineStringLayer = new WorldWind.RenderableLayer("LineString - Cluj - Bologna");
var lineStringDataSource = '{ "type": "LineString", "coordinates": [[23.62364, 46.77121] , [ 11.34262, 44.49489]] }';
var lineStringGeoJSON = new WorldWind.GeoJSONParser(lineStringDataSource);
lineStringGeoJSON.load(null, shapeConfigurationCallback, lineStringLayer);
wwd.addLayer(lineStringLayer);
//MultiLineString test
var multiLineStringLayer = new WorldWind.RenderableLayer("MultiLineString - Danube");
var multiLineStringGeoJSON = new WorldWind.GeoJSONParser(resourcesUrl + "MultiLineStringTest.geojson");
multiLineStringGeoJSON.load(null, shapeConfigurationCallback, multiLineStringLayer);
wwd.addLayer(multiLineStringLayer);
// GeometryCollection test with a callback function
var geometryCollectionLayer = new WorldWind.RenderableLayer("GeometryCollection - Greece");
var geometryCollectionGeoJSON = new WorldWind.GeoJSONParser(resourcesUrl + "GeometryCollectionFeatureTest.geojson");
geometryCollectionGeoJSON.load(parserCompletionCallback, shapeConfigurationCallback, geometryCollectionLayer);
// Feature test
var featureLayer = new WorldWind.RenderableLayer("Feature - Germany");
var featureGeoJSON = new WorldWind.GeoJSONParser(resourcesUrl + "FeatureTest.geojson");
featureGeoJSON.load(null, shapeConfigurationCallback, featureLayer);
wwd.addLayer(featureLayer);
// Feature collection test
// Feature collection - Spain and Portugal
var spainLayer = new WorldWind.RenderableLayer("Feature Collection - Spain & Portugal");
var spainGeoJSON = new WorldWind.GeoJSONParser(resourcesUrl + "FeatureCollectionTest_Spain_Portugal.geojson");
spainGeoJSON.load(null, shapeConfigurationCallback, spainLayer);
wwd.addLayer(spainLayer);
//CRS Reprojection test
//USA EPSG:3857 named
var ch3857Layer = new WorldWind.RenderableLayer("Switzerland 3857");
var ch3857GeoJSON = new WorldWind.GeoJSONParser(resourcesUrl + "FeatureCollectionTest_EPSG3857_Switzerland.geojson");
ch3857GeoJSON.load(null, shapeConfigurationCallback, ch3857Layer);
wwd.addLayer(ch3857Layer);
// Create a layer manager for controlling layer visibility.
var layerManager = new LayerManager(wwd);
layerManager.synchronizeLayerList();
layerManager.goToAnimator.goTo(new WorldWind.Location(38.72, 14.91))
});