block by ajzeigert a61626a6ff19aa4e43fd

Basic example of loading geojson using leaflet

Full Screen

index.html

<!DOCTYPE html>
<html>
<head>
	<title>Pipeline test</title>
	<meta charset="UTF-8">
	<meta name="description" content="" />
	<meta name="keywords" content="" />
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script>
	<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
	<link rel="stylesheet" href="leaflet.css" />
	<script src="leaflet.js"></script>
	<script type="text/javascript" src="//maps.stamen.com/js/tile.stamen.js?v1.3.0"></script>
	<style>
		
		#map {
			width: 960px;
			height: 500px;
		}
/*
		
		svg {
			position: relative;
		}
*/
		
		.pipes {
			stroke-width: 2;
			fill: none;
			stroke-linejoin: "round";
		}
		
		.hp {
			stroke: #f03b20;
		}
		
		.t {
			stroke: #d9b410;
		}
		
		.streets {
			stroke-width: 1;
			stroke: #cbcbca;
			stroke-linejoin: "round";
		}
		
/*
		.pipes:hover {
			stroke: #d98410;
		}
*/
		
	</style>
</head>
<body>
	<div id="map"></div>
	<script>
		
		var undermap = new L.tileLayer("//tile.stamen.com/toner-lite/{z}/{x}/{y}.png");
		
		var map = new L.Map("map", { center: [34.05, -118.25], zoom: 10 })
			.addLayer(undermap);
		
		// Load
		var hp_pipes = [];
		
		$.ajax({
  		method: "GET",
  		url: "pipeline_hp.json",
  		dataType: "json",
			success: function(data){
				hp_pipes = L.geoJson(data, {
					style: function (feature) {
						return {color: "#f03b20"};
					}
//					onEachFeature: function (feature, layer) {
//						layer.bindPopup(feature.properties.description);
//					}
				}).addTo(map);
			}
		});
		
		var t_pipes = [];
		
		$.ajax({
  		method: "GET",
  		url: "pipeline_t.json",
  		dataType: "json",
			success: function(data){
				t_pipes = L.geoJson(data, {
					style: function (feature) {
						return {color: "#d9b410"};
					}
//					onEachFeature: function (feature, layer) {
//						layer.bindPopup(feature.properties.description);
//					}
				}).addTo(map);
			}
		});
		
		
//		var svg = d3.select(map.getPanes().overlayPane).append("svg"),
//				g = svg.append("g").attr("class", "leaflet-zoom-hide");
		
//		d3.json("pipeline_hp.json", function(error, collection) {
//			if (error) throw error;
//			
//			var transform = d3.geo.transform({point: projectPoint}),
//					path = d3.geo.path().projection(transform);
//			
//			var feature = g.selectAll("path")
//				.data(collection.features)
//				.enter().append("path")
//				.attr("class", "pipes hp")
//			
////			map.on("viewreset", reset);
////			reset();
//			
//			// Reposition the SVG to cover the features
////			function reset() {
////				var bounds = path.bounds(collection),
////						topLeft = bounds[0],
////						bottomRight = bounds[1];
////
////				svg.attr("width", bottomRight[0] - topLeft[0])
////					.attr("height", bottomRight[1] - topLeft[0])
////					.style("left", topLeft[0] + "px")
////					.style("top", topLeft[1] + "px");
////
////				g.attr("transform", "translate(" + -topLeft[0] + "," + -topLeft[1] + ")");
////
////				feature.attr("d", path);
////			}
////			
////			function projectPoint(x, y){
////				var point = map.latLngToLayerPoint(new L.LatLng(y, x));
////				this.stream.point(point.x, point.y);
////			}
//			
//		})
//		
//		var width = 800,
//				height = 600;
//		
//		var svg = d3.select("body")
//			.append("svg")
//			.attr("width", width)
//			.attr("height", height);
//		
//		var projection = d3.geo.mercator()
////		.rotate();
//
//		var path = d3.geo.path()
//			.projection(projection);
//		
//		// Load high-pressure pipeline
//		d3.json("pipeline_hp.json", function(error, data){
//			if (error) throw error;
//
//			projection
//				.scale(1)
//				.translate([0,0]);
//						
//			var b = path.bounds(data),
//					s = .95 / Math.max((b[1][0] - b[0][0]) / width, (b[1][1] - b[0][1]) / height),
//					t = [(width - s * (b[1][0] + b[0][0])) / 2, (height - s * (b[1][1] + b[0][1])) / 2];
//			
//			projection
//				.scale(s)
//				.translate(t);
//			
//			svg.append("path")
//				.datum(data)
//				.attr("class", "pipes hp")
//				.attr("d", path);
//			
//					
//			// Load transmission pipeline
//			d3.json("pipeline_t.json", function(error, data2){
//				if (error) throw error;
//
//				svg.append("path")
//					.datum(data2)
//					.attr("class", "pipes t")
//					.attr("d", path);
//
//			});
//
//		});

	</script>
</body>
</html>

leaflet.css

/* required styles */

.leaflet-pane,
.leaflet-tile,
.leaflet-marker-icon,
.leaflet-marker-shadow,
.leaflet-tile-container,
.leaflet-map-pane svg,
.leaflet-map-pane canvas,
.leaflet-zoom-box,
.leaflet-image-layer,
.leaflet-layer {
	position: absolute;
	left: 0;
	top: 0;
	}
.leaflet-container {
	overflow: hidden;
	-ms-touch-action: none;
	touch-action: none;
	}
.leaflet-tile,
.leaflet-marker-icon,
.leaflet-marker-shadow {
	-webkit-user-select: none;
	   -moz-user-select: none;
	        user-select: none;
	  -webkit-user-drag: none;
	}
/* Safari renders non-retina tile on retina better with this, but Chrome is worse */
.leaflet-safari .leaflet-tile {
	image-rendering: -webkit-optimize-contrast;
	}
/* hack that prevents hw layers "stretching" when loading new tiles */
.leaflet-safari .leaflet-tile-container {
	width: 1600px;
	height: 1600px;
	-webkit-transform-origin: 0 0;
	}
.leaflet-marker-icon,
.leaflet-marker-shadow {
	display: block;
	}
/* .leaflet-container svg: reset svg max-width decleration shipped in Joomla! (joomla.org) 3.x */
/* .leaflet-container img: map is broken in FF if you have max-width: 100% on tiles */
.leaflet-container .leaflet-overlay-pane svg,
.leaflet-container .leaflet-marker-pane img,
.leaflet-container .leaflet-tile-pane img,
.leaflet-container img.leaflet-image-layer {
	max-width: none !important;
	}
.leaflet-tile {
	filter: inherit;
	visibility: hidden;
	}
.leaflet-tile-loaded {
	visibility: inherit;
	}
.leaflet-zoom-box {
	width: 0;
	height: 0;
	-moz-box-sizing: border-box;
	     box-sizing: border-box;
	z-index: 800;
	}
/* workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=888319 */
.leaflet-overlay-pane svg {
	-moz-user-select: none;
	}

.leaflet-pane         { z-index: 400; }

.leaflet-tile-pane    { z-index: 200; }
.leaflet-overlay-pane { z-index: 400; }
.leaflet-shadow-pane  { z-index: 500; }
.leaflet-marker-pane  { z-index: 600; }
.leaflet-popup-pane   { z-index: 700; }

.leaflet-map-pane canvas { z-index: 100; }
.leaflet-map-pane svg    { z-index: 200; }

.leaflet-vml-shape {
	width: 1px;
	height: 1px;
	}
.lvml {
	behavior: url(#default#VML);
	display: inline-block;
	position: absolute;
	}


/* control positioning */

.leaflet-control {
	position: relative;
	z-index: 800;
	pointer-events: auto;
	}
.leaflet-top,
.leaflet-bottom {
	position: absolute;
	z-index: 1000;
	pointer-events: none;
	}
.leaflet-top {
	top: 0;
	}
.leaflet-right {
	right: 0;
	}
.leaflet-bottom {
	bottom: 0;
	}
.leaflet-left {
	left: 0;
	}
.leaflet-control {
	float: left;
	clear: both;
	}
.leaflet-right .leaflet-control {
	float: right;
	}
.leaflet-top .leaflet-control {
	margin-top: 10px;
	}
.leaflet-bottom .leaflet-control {
	margin-bottom: 10px;
	}
.leaflet-left .leaflet-control {
	margin-left: 10px;
	}
.leaflet-right .leaflet-control {
	margin-right: 10px;
	}


/* zoom and fade animations */

.leaflet-fade-anim .leaflet-tile {
	will-change: opacity;
	}
.leaflet-fade-anim .leaflet-popup {
	opacity: 0;
	-webkit-transition: opacity 0.2s linear;
	   -moz-transition: opacity 0.2s linear;
	     -o-transition: opacity 0.2s linear;
	        transition: opacity 0.2s linear;
	}
.leaflet-fade-anim .leaflet-map-pane .leaflet-popup {
	opacity: 1;
	}
.leaflet-zoom-animated {
	-webkit-transform-origin: 0 0;
	    -ms-transform-origin: 0 0;
	        transform-origin: 0 0;
	}
.leaflet-zoom-anim .leaflet-zoom-animated {
	will-change: transform;
	}
.leaflet-zoom-anim .leaflet-zoom-animated {
	-webkit-transition: -webkit-transform 0.25s cubic-bezier(0,0,0.25,1);
	   -moz-transition:    -moz-transform 0.25s cubic-bezier(0,0,0.25,1);
	     -o-transition:      -o-transform 0.25s cubic-bezier(0,0,0.25,1);
	        transition:         transform 0.25s cubic-bezier(0,0,0.25,1);
	}
.leaflet-zoom-anim .leaflet-tile,
.leaflet-pan-anim .leaflet-tile {
	-webkit-transition: none;
	   -moz-transition: none;
	     -o-transition: none;
	        transition: none;
	}

.leaflet-zoom-anim .leaflet-zoom-hide {
	visibility: hidden;
	}


/* cursors */

.leaflet-interactive {
	cursor: pointer;
	}
.leaflet-grab {
	cursor: -webkit-grab;
	cursor:    -moz-grab;
	}
.leaflet-crosshair,
.leaflet-crosshair .leaflet-interactive {
	cursor: crosshair;
	}
.leaflet-popup-pane,
.leaflet-control {
	cursor: auto;
	}
.leaflet-dragging .leaflet-grab,
.leaflet-dragging .leaflet-grab .leaflet-interactive,
.leaflet-dragging .leaflet-marker-draggable {
	cursor: move;
	cursor: -webkit-grabbing;
	cursor:    -moz-grabbing;
	}


/* visual tweaks */

.leaflet-container {
	background: #ddd;
	outline: 0;
	}
.leaflet-container a {
	color: #0078A8;
	}
.leaflet-container a.leaflet-active {
	outline: 2px solid orange;
	}
.leaflet-zoom-box {
	border: 2px dotted #38f;
	background: rgba(255,255,255,0.5);
	}


/* general typography */
.leaflet-container {
	font: 12px/1.5 "Helvetica Neue", Arial, Helvetica, sans-serif;
	}


/* general toolbar styles */

.leaflet-bar {
	box-shadow: 0 1px 5px rgba(0,0,0,0.65);
	border-radius: 4px;
	}
.leaflet-bar a,
.leaflet-bar a:hover {
	background-color: #fff;
	border-bottom: 1px solid #ccc;
	width: 26px;
	height: 26px;
	line-height: 26px;
	display: block;
	text-align: center;
	text-decoration: none;
	color: black;
	}
.leaflet-bar a,
.leaflet-control-layers-toggle {
	background-position: 50% 50%;
	background-repeat: no-repeat;
	display: block;
	}
.leaflet-bar a:hover {
	background-color: #f4f4f4;
	}
.leaflet-bar a:first-child {
	border-top-left-radius: 4px;
	border-top-right-radius: 4px;
	}
.leaflet-bar a:last-child {
	border-bottom-left-radius: 4px;
	border-bottom-right-radius: 4px;
	border-bottom: none;
	}
.leaflet-bar a.leaflet-disabled {
	cursor: default;
	background-color: #f4f4f4;
	color: #bbb;
	}

.leaflet-touch .leaflet-bar a {
	width: 30px;
	height: 30px;
	line-height: 30px;
	}


/* zoom control */

.leaflet-control-zoom-in,
.leaflet-control-zoom-out {
	font: bold 18px 'Lucida Console', Monaco, monospace;
	text-indent: 1px;
	}
.leaflet-control-zoom-out {
	font-size: 20px;
	}

.leaflet-touch .leaflet-control-zoom-in {
	font-size: 22px;
	}
.leaflet-touch .leaflet-control-zoom-out {
	font-size: 24px;
	}


/* layers control */

.leaflet-control-layers {
	box-shadow: 0 1px 5px rgba(0,0,0,0.4);
	background: #fff;
	border-radius: 5px;
	}
.leaflet-control-layers-toggle {
	background-image: url(images/layers.png);
	width: 36px;
	height: 36px;
	}
.leaflet-retina .leaflet-control-layers-toggle {
	background-image: url(images/layers-2x.png);
	background-size: 26px 26px;
	}
.leaflet-touch .leaflet-control-layers-toggle {
	width: 44px;
	height: 44px;
	}
.leaflet-control-layers .leaflet-control-layers-list,
.leaflet-control-layers-expanded .leaflet-control-layers-toggle {
	display: none;
	}
.leaflet-control-layers-expanded .leaflet-control-layers-list {
	display: block;
	position: relative;
	}
.leaflet-control-layers-expanded {
	padding: 6px 10px 6px 6px;
	color: #333;
	background: #fff;
	}
.leaflet-control-layers-scrollbar {
	overflow-y: scroll;
	padding-right: 5px;
	}
.leaflet-control-layers-selector {
	margin-top: 2px;
	position: relative;
	top: 1px;
	}
.leaflet-control-layers label {
	display: block;
	}
.leaflet-control-layers-separator {
	height: 0;
	border-top: 1px solid #ddd;
	margin: 5px -10px 5px -6px;
	}


/* attribution and scale controls */

.leaflet-container .leaflet-control-attribution {
	background: #fff;
	background: rgba(255, 255, 255, 0.7);
	margin: 0;
	}
.leaflet-control-attribution,
.leaflet-control-scale-line {
	padding: 0 5px;
	color: #333;
	}
.leaflet-control-attribution a {
	text-decoration: none;
	}
.leaflet-control-attribution a:hover {
	text-decoration: underline;
	}
.leaflet-container .leaflet-control-attribution,
.leaflet-container .leaflet-control-scale {
	font-size: 11px;
	}
.leaflet-left .leaflet-control-scale {
	margin-left: 5px;
	}
.leaflet-bottom .leaflet-control-scale {
	margin-bottom: 5px;
	}
.leaflet-control-scale-line {
	border: 2px solid #777;
	border-top: none;
	line-height: 1.1;
	padding: 2px 5px 1px;
	font-size: 11px;
	white-space: nowrap;
	overflow: hidden;
	-moz-box-sizing: border-box;
	     box-sizing: border-box;

	background: #fff;
	background: rgba(255, 255, 255, 0.5);
	}
.leaflet-control-scale-line:not(:first-child) {
	border-top: 2px solid #777;
	border-bottom: none;
	margin-top: -2px;
	}
.leaflet-control-scale-line:not(:first-child):not(:last-child) {
	border-bottom: 2px solid #777;
	}

.leaflet-touch .leaflet-control-attribution,
.leaflet-touch .leaflet-control-layers,
.leaflet-touch .leaflet-bar {
	box-shadow: none;
	}
.leaflet-touch .leaflet-control-layers,
.leaflet-touch .leaflet-bar {
	border: 2px solid rgba(0,0,0,0.2);
	background-clip: padding-box;
	}


/* popup */

.leaflet-popup {
	position: absolute;
	text-align: center;
	}
.leaflet-popup-content-wrapper {
	padding: 1px;
	text-align: left;
	border-radius: 12px;
	}
.leaflet-popup-content {
	margin: 13px 19px;
	line-height: 1.4;
	}
.leaflet-popup-content p {
	margin: 18px 0;
	}
.leaflet-popup-tip-container {
	margin: 0 auto;
	width: 40px;
	height: 20px;
	position: relative;
	overflow: hidden;
	}
.leaflet-popup-tip {
	width: 17px;
	height: 17px;
	padding: 1px;

	margin: -10px auto 0;

	-webkit-transform: rotate(45deg);
	   -moz-transform: rotate(45deg);
	    -ms-transform: rotate(45deg);
	     -o-transform: rotate(45deg);
	        transform: rotate(45deg);
	}
.leaflet-popup-content-wrapper,
.leaflet-popup-tip {
	background: white;
	color: #333;
	box-shadow: 0 3px 14px rgba(0,0,0,0.4);
	}
.leaflet-container a.leaflet-popup-close-button {
	position: absolute;
	top: 0;
	right: 0;
	padding: 4px 4px 0 0;
	border: none;
	text-align: center;
	width: 18px;
	height: 14px;
	font: 16px/14px Tahoma, Verdana, sans-serif;
	color: #c3c3c3;
	text-decoration: none;
	font-weight: bold;
	background: transparent;
	}
.leaflet-container a.leaflet-popup-close-button:hover {
	color: #999;
	}
.leaflet-popup-scrolled {
	overflow: auto;
	border-bottom: 1px solid #ddd;
	border-top: 1px solid #ddd;
	}

.leaflet-oldie .leaflet-popup-content-wrapper {
	zoom: 1;
	}
.leaflet-oldie .leaflet-popup-tip {
	width: 24px;
	margin: 0 auto;

	-ms-filter: "progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678)";
	filter: progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678);
	}
.leaflet-oldie .leaflet-popup-tip-container {
	margin-top: -1px;
	}

.leaflet-oldie .leaflet-control-zoom,
.leaflet-oldie .leaflet-control-layers,
.leaflet-oldie .leaflet-popup-content-wrapper,
.leaflet-oldie .leaflet-popup-tip {
	border: 1px solid #999;
	}


/* div icon */

.leaflet-div-icon {
	background: #fff;
	border: 1px solid #666;
	}