demarches-normaliennes/app/javascript/components/shared/maplibre/styles/base.ts

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import type { AnyLayer, Style, RasterLayer, RasterSource } from 'maplibre-gl';
import invariant from 'tiny-invariant';
import cadastreLayers from './layers/cadastre';
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function ignServiceURL(layer: string, style: string, format = 'image/png') {
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const url = `https://data.geopf.fr/wmts`;
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const query =
'service=WMTS&request=GetTile&version=1.0.0&tilematrixset=PM&tilematrix={z}&tilecol={x}&tilerow={y}';
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return `${url}?${query}&layer=${layer}&format=${format}&style=${style}`;
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}
const OPTIONAL_LAYERS: { label: string; id: string; layers: string[][] }[] = [
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{
label: 'UNESCO',
id: 'unesco',
layers: [
['Aires protégées Géoparcs', 'PROTECTEDAREAS.GP', 'normal'],
['Réserves de biosphère', 'PROTECTEDAREAS.BIOS', 'PROTECTEDAREAS.BIOS']
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]
},
{
label: 'Arrêtés de protection',
id: 'arretes_protection',
layers: [
[
'Arrêtés de protection de biotope',
'PROTECTEDAREAS.APB',
'PROTECTEDAREAS.APB'
],
['Arrêtés de protection de géotope', 'PROTECTEDAREAS.APG', 'normal']
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]
},
{
label: 'Conservatoire du Littoral',
id: 'conservatoire_littoral',
layers: [
[
'Conservatoire du littoral : parcelles protégées',
'PROTECTEDAREAS.MNHN.CDL.PARCELS',
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'PROTECTEDAREAS.MNHN.CDL.PARCELS'
],
[
'Conservatoire du littoral : périmètres dintervention',
'PROTECTEDAREAS.MNHN.CDL.PERIMETER',
'normal'
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]
]
},
{
label: 'Réserves nationales de chasse et de faune sauvage',
id: 'reserves_chasse_faune_sauvage',
layers: [
[
'Réserves nationales de chasse et de faune sauvage',
'PROTECTEDAREAS.RNCF',
'normal'
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]
]
},
{
label: 'Réserves biologiques',
id: 'reserves_biologiques',
layers: [['Réserves biologiques', 'PROTECTEDAREAS.RB', 'normal']]
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},
{
label: 'Réserves naturelles',
id: 'reserves_naturelles',
layers: [
[
'Réserves naturelles nationales',
'PROTECTEDAREAS.RN',
'PROTECTEDAREAS.RN'
],
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[
'Périmètres de protection de réserves naturelles',
'PROTECTEDAREAS.MNHN.RN.PERIMETER',
'normal'
],
[
'Réserves naturelles de Corse',
'PROTECTEDAREAS.RNC',
'PROTECTEDAREAS.RNC'
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],
[
'Réserves naturelles régionales',
'PROTECTEDSITES.MNHN.RESERVES-REGIONALES',
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'PROTECTEDSITES.MNHN.RESERVES-REGIONALES'
]
]
},
{
label: 'Natura 2000',
id: 'natura_2000',
layers: [
[
'Sites Natura 2000 (Directive Habitats)',
'PROTECTEDAREAS.SIC',
'PROTECTEDAREAS.SIC'
],
[
'Sites Natura 2000 (Directive Oiseaux)',
'PROTECTEDAREAS.ZPS',
'PROTECTEDAREAS.ZPS'
]
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]
},
{
label: 'Zones humides dimportance internationale',
id: 'zones_humides',
layers: [
[
'Zones humides dimportance internationale',
'PROTECTEDAREAS.RAMSAR',
'PROTECTEDAREAS.RAMSAR'
]
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]
},
{
label: 'ZNIEFF',
id: 'znieff',
layers: [
[
'Zones naturelles dintérêt écologique faunistique et floristique de type 1 (ZNIEFF 1 mer)',
'PROTECTEDAREAS.ZNIEFF1.SEA',
'normal'
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],
[
'Zones naturelles dintérêt écologique faunistique et floristique de type 1 (ZNIEFF 1)',
'PROTECTEDAREAS.ZNIEFF1',
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'PROTECTEDAREAS.ZNIEFF1'
],
[
'Zones naturelles dintérêt écologique faunistique et floristique de type 2 (ZNIEFF 2 mer)',
'PROTECTEDAREAS.ZNIEFF2.SEA',
'normal'
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],
[
'Zones naturelles dintérêt écologique faunistique et floristique de type 2 (ZNIEFF 2)',
'PROTECTEDAREAS.ZNIEFF2',
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'PROTECTEDAREAS.ZNIEFF2'
]
]
},
{
label: 'Cadastre',
id: 'cadastres',
layers: [
['Cadastre', 'CADASTRE', 'DECALAGE DE LA REPRESENTATION CADASTRALE']
]
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}
];
function buildSources() {
return Object.fromEntries(
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OPTIONAL_LAYERS.filter(({ id }) => id !== 'cadastres')
.flatMap(({ layers }) => layers)
.map(([, code, style]) => [
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getLayerCode(code),
rasterSource([ignServiceURL(code, style)], 'IGN-F/Géoportail/MNHN')
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])
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);
}
function rasterSource(tiles: string[], attribution: string): RasterSource {
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return {
type: 'raster',
tiles,
tileSize: 256,
attribution,
minzoom: 0,
maxzoom: 18
};
}
function rasterLayer(source: string, opacity: number): RasterLayer {
return {
id: source,
source,
type: 'raster',
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paint: { 'raster-resampling': 'linear', 'raster-opacity': opacity }
};
}
export function buildOptionalLayers(
ids: string[],
opacity: Record<string, number>
): AnyLayer[] {
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return OPTIONAL_LAYERS.filter(({ id }) => ids.includes(id))
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.flatMap(({ layers, id }) =>
layers.map(([, code]) => [code, opacity[id] / 100] as const)
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)
.flatMap(([code, opacity]) =>
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code === 'CADASTRE'
? cadastreLayers
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: [rasterLayer(getLayerCode(code), opacity)]
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);
}
export const NBS = ' ' as const;
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export function getLayerName(layer: string): string {
const name = OPTIONAL_LAYERS.find(({ id }) => id == layer);
invariant(name, `Layer "${layer}" not found`);
return name.label.replace(/\s/g, NBS);
}
function getLayerCode(code: string) {
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return code.toLowerCase().replace(/\./g, '-');
}
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export default {
version: 8,
metadat: {
'mapbox:autocomposite': false,
'mapbox:groups': {
1444849242106.713: { collapsed: false, name: 'Places' },
1444849334699.1902: { collapsed: true, name: 'Bridges' },
1444849345966.4436: { collapsed: false, name: 'Roads' },
1444849354174.1904: { collapsed: true, name: 'Tunnels' },
1444849364238.8171: { collapsed: false, name: 'Buildings' },
1444849382550.77: { collapsed: false, name: 'Water' },
1444849388993.3071: { collapsed: false, name: 'Land' }
},
'mapbox:type': 'template',
'openmaptiles:mapbox:owner': 'openmaptiles',
'openmaptiles:mapbox:source:url': 'mapbox://openmaptiles.4qljc88t',
'openmaptiles:version': '3.x',
'maputnik:renderer': 'mbgljs'
},
center: [0, 0],
zoom: 1,
bearing: 0,
pitch: 0,
sources: {
'decoupage-administratif': {
type: 'vector',
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url: 'https://openmaptiles.geo.data.gouv.fr/data/decoupage-administratif.json'
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},
openmaptiles: {
type: 'vector',
url: 'https://openmaptiles.geo.data.gouv.fr/data/france-vector.json'
},
'photographies-aeriennes': rasterSource(
[ignServiceURL('ORTHOIMAGERY.ORTHOPHOTOS', 'normal', 'image/jpeg')],
'IGN-F/Géoportail'
),
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cadastre: {
type: 'vector',
url: 'https://openmaptiles.geo.data.gouv.fr/data/cadastre.json'
},
'plan-ign': rasterSource(
[ignServiceURL('GEOGRAPHICALGRIDSYSTEMS.PLANIGNV2', 'normal')],
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'IGN-F/Géoportail'
),
...buildSources()
},
sprite: 'https://openmaptiles.github.io/osm-bright-gl-style/sprite',
glyphs: 'https://openmaptiles.geo.data.gouv.fr/fonts/{fontstack}/{range}.pbf'
} as Style;