Illustrates adjusting brightness, constrast, and saturation on a color layer.
import * as THREE from 'three';
import { MapControls } from 'three/examples/jsm/controls/MapControls.js';
import TileWMS from 'ol/source/TileWMS.js';
import Instance from '@giro3d/giro3d/core/Instance.js';
import Extent from '@giro3d/giro3d/core/geographic/Extent.js';
import Map from '@giro3d/giro3d/entities/Map.js';
import ColorLayer from '@giro3d/giro3d/core/layer/ColorLayer.js';
import ElevationLayer from '@giro3d/giro3d/core/layer/ElevationLayer.js';
import BilFormat from '@giro3d/giro3d/formats/BilFormat.js';
import Inspector from '@giro3d/giro3d/gui/Inspector.js';
import TiledImageSource from '@giro3d/giro3d/sources/TiledImageSource.js';
import StatusBar from './widgets/StatusBar.js';
const viewer = document.getElementById('viewerDiv');
Instance.registerCRS('EPSG:3946',
'+proj=lcc +lat_1=45.25 +lat_2=46.75 +lat_0=46 +lon_0=3 +x_0=1700000 +y_0=5200000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs');
const instance = new Instance(viewer, { crs: 'EPSG:3946' });
const xmin = 1837816.94334;
const xmax = 1847692.32501;
const ymin = 5170036.4587;
const ymax = 5178412.82698;
const extent = new Extent('EPSG:3946', xmin, xmax, ymin, ymax);
const map = new Map('city-of-lyon', { extent });
instance.add(map);
const satelliteSource = new TiledImageSource({
source: new TileWMS({
url: 'https://wxs.ign.fr/ortho/geoportail/r/wms',
projection: 'EPSG:3946',
params: {
LAYERS: ['HR.ORTHOIMAGERY.ORTHOPHOTOS'],
FORMAT: 'image/jpeg',
},
}),
});
const colorLayer = new ColorLayer('satellite', {
source: satelliteSource,
extent: map.extent,
});
map.addLayer(colorLayer);
const demSource = new TiledImageSource({
source: new TileWMS({
url: 'https://wxs.ign.fr/altimetrie/geoportail/r/wms',
projection: 'EPSG:3946',
crossOrigin: 'anonymous',
params: {
LAYERS: ['ELEVATION.ELEVATIONGRIDCOVERAGE.HIGHRES'],
FORMAT: 'image/x-bil;bits=32',
},
}),
format: new BilFormat(),
noDataValue: -1000,
});
const elevationLayer = new ElevationLayer(
'dem',
{
extent: map.extent,
source: demSource,
},
);
map.addLayer(elevationLayer);
const camera = instance.camera.camera3D;
const cameraAltitude = 2000;
const cameraPosition = new THREE.Vector3(
extent.west(),
extent.south(),
cameraAltitude,
);
camera.position.copy(cameraPosition);
const controls = new MapControls(camera, instance.domElement);
controls.target = extent.center().xyz();
controls.enableDamping = true;
controls.dampingFactor = 0.2;
controls.maxPolarAngle = Math.PI / 2.3;
controls.saveState();
instance.useTHREEControls(controls);
function bindSlider(name, fn) {
const slider = document.getElementById(name);
slider.oninput = function oninput() {
fn(slider.value);
instance.notifyChange(map);
};
}
bindSlider('slider-brightness', v => { colorLayer.brightness = v; });
bindSlider('slider-contrast', v => { colorLayer.contrast = v; });
bindSlider('slider-saturation', v => { colorLayer.saturation = v; });
Inspector.attach(document.getElementById('panelDiv'), instance);
StatusBar.bind(instance);