Color
Display a graticule on a Map.
The Map can display a fully configurable graticule.
import colormap from 'colormap';
import { Color } from 'three';
import { MapControls } from 'three/examples/jsm/controls/MapControls.js';
import XYZ from 'ol/source/XYZ.js';
import Extent from '@giro3d/giro3d/core/geographic/Extent.js';
import Instance from '@giro3d/giro3d/core/Instance.js';
import ElevationLayer from '@giro3d/giro3d/core/layer/ElevationLayer.js';
import TiledImageSource from '@giro3d/giro3d/sources/TiledImageSource.js';
import Map from '@giro3d/giro3d/entities/Map.js';
import Inspector from '@giro3d/giro3d/gui/Inspector.js';
import Interpretation from '@giro3d/giro3d/core/layer/Interpretation.js';
import GeoTIFFFormat from '@giro3d/giro3d/formats/GeoTIFFFormat.js';
import ColorMap, { ColorMapMode } from '@giro3d/giro3d/core/layer/ColorMap.js';
const x = -13602000;
const y = 5812000;
const halfWidth = 25000;
// Defines geographic extent: CRS, min/max X, min/max Y
const extent = new Extent('EPSG:3857', x - halfWidth, x + halfWidth, y - halfWidth, y + halfWidth);
// `viewerDiv` will contain Giro3D' rendering area (the canvas element)
const viewerDiv = document.getElementById('viewerDiv');
// Creates a Giro3D instance
const instance = new Instance(viewerDiv, {
crs: extent.crs(),
renderer: {
clearColor: 0x0a3b59,
},
});
// Creates a map that will contain the layer
const map = new Map('planar', {
extent,
hillshading: true,
discardNoData: true,
doubleSided: true,
backgroundColor: 'white',
graticule: {
enabled: true,
color: new Color('white'),
xStep: 500,
yStep: 500,
xOffset: 0,
yOffset: 0,
opacity: 1,
thickness: 20,
},
});
instance.add(map);
const source = new TiledImageSource({
source: new XYZ({
minZoom: 10,
maxZoom: 16,
url: 'https://3d.oslandia.com/dem/MtStHelens-tiles/{z}/{x}/{y}.tif',
}),
format: new GeoTIFFFormat(),
});
const floor = 1100;
const ceiling = 2500;
const values = colormap({ colormap: 'viridis', nshades: 256 });
const colors = values.map(v => new Color(v));
const dem = new ElevationLayer({
name: 'dem',
extent,
interpretation: Interpretation.Raw,
source,
colorMap: new ColorMap(colors, floor, ceiling, ColorMapMode.Elevation),
});
map.addLayer(dem);
instance.camera.camera3D.position.set(-13600394, 5818579, 11832);
// Instanciates controls
const controls = new MapControls(instance.camera.camera3D, instance.domElement);
controls.target.set(-13603000, 5811000, 0);
instance.useTHREEControls(controls);
// GUI
function bindSlider(id, callback) {
const slider = document.getElementById(id);
slider.oninput = function oninput() {
callback(slider.value);
instance.notifyChange(map);
};
}
function bindToggle(id, callback) {
const toggle = document.getElementById(id);
toggle.oninput = function oninput() {
callback(toggle.checked);
instance.notifyChange(map);
};
}
function bindDropdown(id, callback) {
document.getElementById(id).addEventListener('change', e => {
callback(e.target.value);
instance.notifyChange(map);
});
}
bindToggle('toggle-graticule', v => (map.materialOptions.graticule.enabled = v));
bindSlider('x-step', v => (map.materialOptions.graticule.xStep = v));
bindSlider('y-step', v => (map.materialOptions.graticule.yStep = v));
bindSlider('x-offset', v => (map.materialOptions.graticule.xOffset = v));
bindSlider('y-offset', v => (map.materialOptions.graticule.yOffset = v));
bindSlider('opacity', v => (map.materialOptions.graticule.opacity = v));
bindSlider('thickness', v => (map.materialOptions.graticule.thickness = v));
bindDropdown('color', v => (map.materialOptions.graticule.color = new Color(v)));
Inspector.attach(document.getElementById('panelDiv'), instance);<!doctype html>
<html lang="en">
<head>
<title>Graticule</title>
<meta charset="UTF-8" />
<meta name="name" content="graticule" />
<meta name="description" content="Display a graticule on a 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>
<div class="side-pane-with-status-bar">
<div class="card">
<div class="card-body">
<!-- Show/Hide graticule -->
<div class="form-check form-switch">
<input
class="form-check-input"
type="checkbox"
checked="true"
role="switch"
id="toggle-graticule"
autocomplete="off"
/>
<label class="form-check-label" for="toggle-graticule">Show graticule</label>
</div>
<div class="my-2"></div>
<!-- X step -->
<label for="x-step" class="form-label">X-axis step</label>
<div class="input-group">
<input
type="range"
min="100"
max="3000"
value="1000"
step="100"
class="form-range"
id="x-step"
autocomplete="off"
/>
</div>
<div class="my-2"></div>
<!-- Y step -->
<label for="y-step" class="form-label">Y-axis step</label>
<div class="input-group">
<input
type="range"
min="100"
max="3000"
value="1000"
step="100"
class="form-range"
id="y-step"
autocomplete="off"
/>
</div>
<div class="my-2"></div>
<!-- X offset -->
<label for="x-offset" class="form-label">X-axis offset</label>
<div class="input-group">
<input
type="range"
min="100"
max="3000"
value="200"
step="100"
class="form-range"
id="x-offset"
autocomplete="off"
/>
</div>
<div class="my-2"></div>
<!-- Y offset -->
<label for="y-offset" class="form-label">Y-axis offset</label>
<div class="input-group">
<input
type="range"
min="100"
max="3000"
value="200"
step="100"
class="form-range"
id="y-offset"
autocomplete="off"
/>
</div>
<div class="my-2"></div>
<!-- Opacity -->
<label for="opacity" class="form-label">Opacity</label>
<div class="input-group">
<input
type="range"
min="0"
max="1"
value="1"
step="0.01"
class="form-range"
id="opacity"
autocomplete="off"
/>
</div>
<!-- Thickness -->
<label for="thickness" class="form-label">Thickness</label>
<div class="input-group">
<input
type="range"
min="1"
max="100"
value="20"
step="1"
class="form-range"
id="thickness"
autocomplete="off"
/>
</div>
<div class="my-2"></div>
<!-- Color dropdown -->
<div class="input-group">
<span class="input-group-text flex-grow-1">Color</span>
<select class="btn btn-outline-primary btn-sm" id="color" autocomplete="off">
<option selected value="white">White</option>
<option value="black">Black</option>
<option value="yellow">Yellow</option>
<option value="red">Red</option>
</select>
</div>
</div>
</div>
</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": "graticule",
"dependencies": {
"colormap": "^2.3.2",
"@giro3d/giro3d": "0.37.3"
},
"devDependencies": {
"vite": "^3.2.3"
},
"scripts": {
"start": "vite",
"build": "vite build"
}
}