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DENUE tiles
Commit e43d749a authored by Rodrigo Tapia-McClung's avatar Rodrigo Tapia-McClung
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Local tile generation with geojson-vt

parent ff3037cb
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Showing with 147 additions and 27 deletions
public/index.html
View file @ e43d749a
......@@ -17,6 +17,7 @@
<script src="https://d3js.org/d3.v5.min.js"></script>
<script src="https://api.mapbox.com/mapbox-gl-js/v1.12.0/mapbox-gl.js"></script>
<script src='https://unpkg.com/@turf/turf/turf.min.js'></script>
<script src="https://unpkg.com/geojson-vt@3.2.0/geojson-vt.js"></script>
<script src="../js/functions.js"></script>
</body>
......
public/js/functions.js
View file @ e43d749a
......@@ -8,29 +8,43 @@
/* global mapboxgl, turf */
const baseUrl = new URL(`/data`, window.location.href).href;
let queryGeom = `${baseUrl}/query/dim_municipio?columns=st_asgeojson(box2d(municipio_geom_4326)) box,st_asgeojson(municipio_geom_4326) geom&filter=municipio_cvegeo='09002'`;
let tiles, polygon, box;
let claves = ['09002', '09012'];
let tiles, polygon, box, tileLayers = [];
let pieces, singlePolys = [];
// define MVT layer for given table and some attributes
const mapboxLayer = (table, polygon, box) => {
const mapboxLayer = (table, n, polygon, box) => {
let columns = ["denue_nombre", "sector", "sector_nombre"],
//let columns = ["denue_nombre", "sector", "sector_nombre"],
let columns = ["denue_nombre", "sector"],
//filter = `ST_Intersects(ST_GeomFromGeoJSON(st_asgeojson(denue_geom_4326,4)),ST_GeomFromGeoJSON('${JSON.stringify(box)}'))`;
filter = `ST_Intersects(denue_geom_4326,ST_GeomFromGeoJSON('${JSON.stringify(box)}'))`;
tileLayers.push(table+"-"+n);
let pbfLayer = {
id: table,
id: table+"-"+n,
source: {
type: "vector",
tiles: [`${baseUrl}/${table}/mvt/{z}/{x}/{y}?geom_column=denue_geom_4326&columns=${columns.join(",")}&filter=${filter}`],
maxzoom: 19,
minzoom: 6
//tiles: [`${baseUrl}/${table}/mvt/{z}/{x}/{y}?geom_column=denue_geom_4326&columns=${columns.join(",")}`],
//maxzoom: 19,
//minzoom: 6
},
"source-layer": table,
type: "circle",
"paint": {
//"circle-opacity": 0.5,
'circle-opacity': ['case', ['within', polygon], 0.5, 0],
"circle-radius": 3.5,
"circle-opacity": ['case', ['within', polygon], 0.5, 0],
//"circle-radius": 1,
//"circle-radius": ['case', ['within', polygon], 1, 0],
"circle-radius": [
"interpolate",
["linear"],
["zoom"],
9, 1,
22, 4
],
"circle-color": [
"interpolate",
["linear"],
......@@ -40,44 +54,149 @@ const mapboxLayer = (table, polygon, box) => {
100, "rgb(158,1,66)"
]
}
/*type: "heatmap",
"paint": {
//"heatmap-opacity": ['case', ['within', polygon], 0.1, 0],
"heatmap-intensity": 0.1,
"heatmap-radius": 1,
"heatmap-weight": 1
}*/
}
return pbfLayer;
}
const geojsonLayer = (table, n, polygon, box) => {
/*d3.json(geojsonQ).then( d => {
let tileIndex = geojsonvt(d);
var tile = tileIndex.getTile(9, 114, 228);
*/
let columns = ["denue_nombre", "sector"],
filter = `ST_Intersects(denue_geom_4326,ST_GeomFromGeoJSON('${JSON.stringify(box)}'))`,
geojsonQ = `${baseUrl}/geojson/dim_denue2019?geom_column=denue_geom_4326&columns=${columns.join(",")}&filter=${filter}`,
pbfLayer;
tileLayers.push(table+"-"+n);
d3.json(geojsonQ).then(d => {
pbfLayer = {
id: table+"-"+n,
source: {
type: "geojson",
data: d
},
//"source-layer": table+"-"+n,
type: "circle",
"paint": {
//"circle-opacity": 0.5,
"circle-opacity": ['case', ['within', polygon], 0.5, 0],
//"circle-radius": 1,
//"circle-radius": ['case', ['within', polygon], 1, 0],
"circle-radius": [
"interpolate",
["linear"],
["zoom"],
9, 1,
22, 4
],
"circle-color": [
"interpolate",
["linear"],
["get", "sector"],
10, "rgb(49,54,149)",
50, "rgb(255,255,191)",
100, "rgb(158,1,66)"
]
}
}
map.addLayer(pbfLayer);
});
//});
}
let map = new mapboxgl.Map({
container: 'mexmap',
accessToken: "pk.eyJ1IjoiZGV2ZWxvcGdlbyIsImEiOiJja2dwcXFic20wYnJnMzBrbG11d3dwYTkyIn0.4WwFOH6C7hDQXV9obU6mAw",
style: 'mapbox://styles/mapbox/dark-v10',
center: [-99.18, 19.48],
zoom: 12
center: [-99.17, 19.36],
zoom: 9
});
map.addControl(new mapboxgl.NavigationControl());
map.on("style.load", async () => {
d3.json(queryGeom).then( d => {
polygon = JSON.parse(d[0].geom);
box = JSON.parse(d[0].box);
tiles = mapboxLayer("dim_denue2019", polygon, box);
map.addLayer(tiles);
/*claves.forEach( (clave, i) => {
let queryGeom = `${baseUrl}/query/dim_municipio?columns=municipio_cvegeo id,municipio_nombre nombre,st_asgeojson(box2d(municipio_geom_4326)) box,st_asgeojson(municipio_geom_4326) geom&filter=municipio_cvegeo='${clave}'`;
d3.json(queryGeom).then( geoms => {
geoms.forEach( g => {
polygon = JSON.parse(g.geom);
let feature = turf.feature(polygon, {id: g.id, nombre: g.nombre});
if (feature.geometry.type === 'MultiPolygon') {
pieces = feature.geometry.coordinates.map(c => turf.polygon(c));
} else {
pieces = [feature];
}
singlePolys.push(pieces);
box = JSON.parse(g.box);
tiles = mapboxLayer("dim_denue2019", i, feature, box);
map.addLayer(tiles);
});
});
});*/
let filter = [];
claves.forEach( clave => {
filter.push(`municipio_cvegeo='${clave}'`);
});
//let queryGeom = `${baseUrl}/query/dim_municipio?columns=municipio_cvegeo id,municipio_nombre nombre,st_asgeojson(box2d(st_geometryn(municipio_geom_4326,1)),4) box,st_asgeojson(st_geometryn(municipio_geom_4326,1),4) geom&filter=${filter.join(" or ")}`;
let queryGeom = `${baseUrl}/query/dim_municipio?columns=municipio_cvegeo id,municipio_nombre nombre,st_asgeojson(box2d(municipio_geom_4326)) box,st_asgeojson(municipio_geom_4326) geom&filter=${filter.join(" or ")}`;
d3.json(queryGeom).then( geoms => {
geoms.forEach( (g, i) => {
polygon = JSON.parse(g.geom);
let feature = turf.feature(polygon, {id: g.id, nombre: g.nombre});
if (feature.geometry.type === 'MultiPolygon') {
pieces = feature.geometry.coordinates.map(c => turf.polygon(c));
} else {
pieces = [feature];
}
singlePolys.push(pieces);
box = JSON.parse(g.box);
//tiles = mapboxLayer("dim_denue2019", i, polygon, box);
//map.addLayer(tiles);
geojsonLayer("dim_denue_2019", i, polygon, box);
});
});
});
map.on('click', e => {
if (turf.booleanWithin(turf.point([e.lngLat.lng, e.lngLat.lat]), polygon)) {
var features = map.queryRenderedFeatures(e.point,
{ layers: ['dim_denue2019'] }
);
if (features.length != 0) {
new mapboxgl.Popup()
.setLngLat(e.lngLat)
.setHTML(features[0].properties['denue_nombre'])
.addTo(map);
singlePolys.flat().forEach( p => {
if (turf.booleanWithin(turf.point([e.lngLat.lng, e.lngLat.lat]), p)) {
var features = map.queryRenderedFeatures(e.point,
{ layers: tileLayers }
);
if (features.length != 0) {
new mapboxgl.Popup()
.setLngLat(e.lngLat)
.setHTML(features[0].properties['denue_nombre'])
.addTo(map);
}
}
});
});
const changeCursor = event => {
console.log(event)
if (event.type === "mousenter") return map.getCanvas().style.cursor = 'pointer';
if (event.type === "mousleave") return map.getCanvas().style.cursor = '';
}
map.on('mouseenter', 'dim_denue2019-0', e => {
if (turf.booleanWithin(turf.point([e.lngLat.lng, e.lngLat.lat]), singlePolys.flat()[0])) {
map.getCanvas().style.cursor = 'pointer';
}
});
/*
// Change the cursor to a pointer when the mouse is over the denue layer.
map.on('mouseenter', 'dim_denue2019', e => {
if (turf.booleanWithin(turf.point([e.lngLat.lng, e.lngLat.lat]), polygon)) {
......@@ -88,4 +207,4 @@ map.on('mouseenter', 'dim_denue2019', e => {
// Change it back to a pointer when it leaves.
map.on('mouseleave', 'dim_denue2019', () => {
map.getCanvas().style.cursor = '';
});
\ No newline at end of file
});*/
\ No newline at end of file
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