Check that an elevation COG works correctly at the edge of the map.
import { MapControls } from 'three/examples/jsm/controls/MapControls.js';
import Extent from '@giro3d/giro3d/core/geographic/Extent.js';
import CogSource from '@giro3d/giro3d/sources/CogSource.js';
import Instance from '@giro3d/giro3d/core/Instance.js';
import ElevationLayer from '@giro3d/giro3d/core/layer/ElevationLayer.js';
import Map from '@giro3d/giro3d/entities/Map.js';
import Inspector from '@giro3d/giro3d/gui/Inspector.js';
const extent = Extent.fromCenterAndSize('EPSG:3857', { x: -13555565, y: 5919254 }, 20000, 20000);
// `viewerDiv` will contain Giro3D' rendering area (the canvas element)
const viewerDiv = document.getElementById('viewerDiv');
// Instantiate Giro3D
const instance = new Instance(viewerDiv, {
crs: extent.crs(),
});
// Instantiate the camera
instance.camera.camera3D.position.set(-13577183, 5907053, 45050);
// Instantiate the controls
const controls = new MapControls(instance.camera.camera3D, instance.domElement);
controls.enableDamping = true;
controls.dampingFactor = 0.2;
controls.target.set(-13557038, 5920026, 0);
instance.useTHREEControls(controls);
// Construct a map and add it to the instance
const map = new Map('planar', {
extent,
backgroundColor: 'gray',
hillshading: true,
});
instance.add(map);
// Use an elevation COG with nodata values
const source = new CogSource({
// https://www.sciencebase.gov/catalog/item/632a9a9ad34e71c6d67b95a3
url: 'https://3d.oslandia.com/cog_data/COG_EPSG3857_USGS_13_n47w122_20220919.tif',
crs: extent.crs(),
});
const min = 263;
const max = 4347;
map.addLayer(
new ElevationLayer({
name: 'elevation',
extent,
source,
preloadImages: false,
minmax: { min, max },
}),
);
// Attach the inspector
Inspector.attach(document.getElementById('panelDiv'), instance);
<!doctype html>
<html lang="en">
<head>
<title>Cropped Elevation COG</title>
<meta charset="UTF-8" />
<meta name="name" content="cropped_cog_elevation" />
<meta name="description" content="Check that an elevation COG works correctly at the edge of the map." />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="icon" href="https://giro3d.org/images/favicon.svg" />
<link href="https://giro3d.org/assets/bootstrap-custom.css" rel="stylesheet" />
<script src="https://giro3d.org/assets/bootstrap.bundle.min.js"></script>
<link
rel="stylesheet"
type="text/css"
href="https://giro3d.org/latest/css/example.css"
/>
</head>
<body>
<div id="viewerDiv" class="m-0 p-0 w-100 h-100"></div>
<div id="panelDiv" class="position-absolute top-0 start-0 mh-100 overflow-auto"></div>
<script type="module" src="index.js"></script>
<script>
/* activate popovers */
const popoverTriggerList = [].slice.call(
document.querySelectorAll('[data-bs-toggle="popover"]'),
);
popoverTriggerList.map(
// bootstrap is used as script in the template, disable warning about undef
// eslint-disable-next-line no-undef
popoverTriggerEl =>
new bootstrap.Popover(popoverTriggerEl, {
trigger: 'hover',
placement: 'left',
content: document.getElementById(
popoverTriggerEl.getAttribute('data-bs-content'),
).innerHTML,
html: true,
}),
);
</script>
</body>
</html>
{
"name": "cropped_cog_elevation",
"dependencies": {
"@giro3d/giro3d": "0.38.5"
},
"devDependencies": {
"vite": "^3.2.3"
},
"scripts": {
"start": "vite",
"build": "vite build"
}
}