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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Gridviz pillar example</title>
<style>
html,
body {
height: 100%; /* Ensure the parent elements have a height so that the map can take up 100% correctly */
margin: 0; /* Remove default margins to prevent scrolling */
overflow: hidden; /* Prevent potential scrollbars */
}
</style>
</head>
<body>
<div id="map" style="height: 100%; width: 100%"></div>
<script src="../../dist/gridviz.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]"></script>
<script src="https://cdn.jsdelivr.net/npm/d3-array@3"></script>
<script>
//define map with initial view
const map = new gridviz.Map(document.getElementById('map'), {
x: 4500000,
y: 2900000,
z: 1500,
backgroundColor: '#F3FBFF',
}).addZoomButtons()
//define multi resolution dataset
const dataset = new gridviz.MultiResolutionDataset(
[1000, 2000, 5000, 10000, 20000, 50000, 100000],
(resolution) =>
new gridviz.TiledGrid(
map,
'https://raw.githubusercontent.com/jgaffuri/tiledgrids/main/data/europe/population2/' +
resolution +
'm/'
),
{ preprocess: (cell) => +cell.TOT_P_2021 > 0 }
)
//define style
const style = new gridviz.PillarStyle({
viewScale: (cells) => d3.max(cells, (cell) => +cell.TOT_P_2021),
height: (cell, resolution, z, max) => (300 * z * cell.TOT_P_2021) / max,
simple: () => true,
color: () => '#FF3D12aa',
viewHeightFactor: 5,
width: (cell, resolution) => 0.3 * resolution,
viewSX: -0.7,
viewSY: -3,
shadowDirection: (21 * Math.PI) / 180.0,
shadowFactor: 0.5,
})
//define grid layer
const gridLayer = new gridviz.GridLayer(dataset, [style], {
minPixelsPerCell: 6,
cellInfoHTML: (c) => '<b>' + c.TOT_P_2021 + '</b> inhabitant(s)',
})
//define background layer
const backgroundLayer = new gridviz.BackgroundLayer({
url: 'https://raw.githubusercontent.com/jgaffuri/mbxyz/main/pub/elevation_shading/',
resolutions: Array.from({ length: 9 }, (_, i) => 28.00132289714475 * Math.pow(2, 10 - i)),
origin: [0, 6000000],
filterColor: (z) => '#ffffff77',
})
//define boundaries layer
const boundariesLayer = new gridviz.GeoJSONLayer(gridviz_eurostat.getEurostatBoundariesLayer())
//define label layer
const labelLayer = new gridviz.LabelLayer(gridviz_eurostat.getEuronymeLabelLayer('EUR', 50))
//add layer to map
map.layers = [backgroundLayer, gridLayer, boundariesLayer, labelLayer]
</script>
</body>
</html>