PAV dataviz

main.js

'use strict';

// Your source tile layer extent, expressed in local projection
var bbox = [700000, 6325197, 1060000, 6617738];

// Maximum resolution in meters per pixel (largest area side / tile size).
var maxResolution = 1406.25;

// Scale for each level
var scale = function(zoom) {
        return 1 / (maxResolution / Math.pow(2, zoom));
};

// Coordinate to grid transformation matrix
var transformation = new L.Transformation(1, -bbox[0], -1, bbox[3]);

// Official Spatial Reference from http://www.spatialreference.org/ref/epsg/2154/
var crs = L.CRS.proj4js('EPSG:2154',
                        '+proj=lcc +lat_1=49 +lat_2=44 +lat_0=46.5 +lon_0=3 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs',
                        transformation);
crs.scale = scale; // required by Leaflet 0.4

var map = L.map('map', {
	crs: crs,
	scale: scale,
	center:  new L.LatLng(44.8442, -0.5933), // Universal Lat/Lng
	zoom: 1,
	minZoom: 0,
	maxZoom: 18,
	attribution: '© <a href="http://metadata.lacub.fr/geosource/apps/search/?uuid=1f8a4be0-900e-4eab-9dcf-55cd9f0a1aed">La CUB</a>'
});

// // Location of tiles (see next paragraph)
new L.tileLayer(
      // 'https://{s}.tiles.mapbox.com/v3/{id}/{z}/{x}/{y}.png',
      'http://{s}.tile.osm.org/{z}/{x}/{y}.png',
      {
		id: 'edouard-lopez.ik52o4kd',
		continuousWorld: true,  // very important
	}
).addTo(map);


d3.json('scripts/emplacements-pav.geo.json', function (geojson) {
var geojson = {
    "type": "Feature",
    "properties": {
        "name": "Coors Field",
        "amenity": "Baseball Stadium",
        "popupContent": "This is where the Rockies play!"
    },
    "geometry": {
        "type": "Point",
        "coordinates": [-0.5933, 44.8442],
    }
};
	console.log(geojson);
	L.Proj.geoJson(geojson).addTo(map);
	// L.geoJson(geojson).addTo(map);
});

pav.geo.json

I ended preprocessing the data to convert them to WSG84 projection:

ogr2ogr -f GeoJSON \
    -t_srs EPSG:4326 \
    -lco COORDINATE_PRECISION=2 \
    -select "GID, IDENT, MDATE"  \
output.geo.json input.shp

I recommend too read this –french– article: Convertir un shapefile en GeoJSON pour Leaflet