Published
Edited
Jul 8, 2021
test = {
let container = DOM.element('div', { style: `width:${width}px;height:${width/1.6}px` });
yield container;
let map = L.map(container).setView([35, 10], 2);
//initialize svg to add to map
// let PhilAreasLayer = L.geoJson({clickable:true}).addTo(map) // we have to make the svg layer clickable
L.svg({clickable:true}).addTo(map) // we have to make the svg layer clickable
//Create selection using D3
const overlay = d3.select(map.getPanes().overlayPane)
const svg = overlay.select('svg').attr("pointer-events", "auto")
// create a group that is hidden during zooming
const g = svg.append('g').attr('class', 'leaflet-zoom-hide')
// Use Leaflets projection API for drawing svg path (creates a stream of projected points)
const projectPoint = function(x, y) {
const point = map.latLngToLayerPoint(new L.LatLng(y, x))
this.stream.point(point.x, point.y)
}
// Use d3's custom geo transform method to implement the above
const projection = d3.geoTransform({point: projectPoint})
// creates geopath from projected points (SVG)
const pathCreator = d3.geoPath().projection(projection)
const areaPaths = g.selectAll('path')
.data(world.features)
.join('path')
//'red'
//getColor(VanAreas.features.properties.ID_1)
.attr('stroke', 'black')
.attr('fill', 'white')
.attr("z-index", 3000)
.attr('stroke-width', 2.5)
//.on("mouseover", mouseover )
let PhilAreasLayer2 = L.geoJson(capital, { //instantiates a new geoJson layer using built in geoJson handling
weight: 2, //Attributes of polygons including the weight of boundaries and colors of map.
color: "#432",
}).bindPopup(function (Layer) { //binds a popup when clicking on each polygon to access underlying data
return '<a href="https://globalreportingcentre.org/" target="_blank"><h1> Test Title </h1><img src="https://upload.wikimedia.org/wikipedia/commons/4/4a/100x100_logo.png" width=100 height=100 /></a>';
})
//only works with https
.addTo(map); //Adds the layer to the map.
//map.fitBounds(PhilAreasLayer.getBounds());
// Function to place svg based on zoom
const onZoom = () => areaPaths.attr('d', pathCreator)
// initialize positioning
onZoom()
// reset whenever map is moved
map.on('zoomend', onZoom)
map.fitBounds(PhilAreasLayer2.getBounds());
}
L = require('leaflet@1.2.0')
import {world} from "@zavenanarsh/philippines-map"
import {capital} from "@zavenanarsh/philippines-map"
d3 = require('d3@5')
a = html`<link href='${resolve('leaflet@1.2.0/dist/leaflet.css')}' rel='stylesheet' />`
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