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index.html
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<!DOCTYPE html>
<meta charset="utf-8">
<title>The Distillery</title>
<style>
body {
font-family: "Helvetica Neue", Helvetica, Arial;
background: #f0f0f0;
margin: 0;
padding: 0;
}
h3 {
margin: 0;
padding: 0;
}
a {
color: #004276;
}
.header {
padding: 15px 20px;
font-size: 14px;
line-height: 14px;
background: #f0f0f0;
border-top: solid 1px #ddd;
border-bottom: solid 1px #ccc;
width: 100%;
}
.header td {
padding: 0 10px;
vertical-align: top;
}
.branding {
font-family: Georgia;
color: rgb(220, 220, 220);
text-shadow: -1px -1px 0.5px rgba(0, 0, 0, 0.2), 1px 1px 0.5px rgba(255, 255, 255, 0.7);
font-size: 26px;
line-height: 47px;
width: 180px;
}
.description {
font-size: 12px;
color: #999;
}
.note {
color: #999;
}
.input {
width: 10px;
}
.files {
height: 26px;
padding: 8px 0px 8px 48px;
border: solid 1px rgba(0,0,0,0.15);
background: rgba(0, 0, 0, 0.05);
box-shadow: inset 0px 1px 8px rgba(0, 0, 0, 0.1);
border-radius: 4px;
line-height: 26px;
white-space: nowrap;
position: relative;
-webkit-transform: width 2s linear;
}
.files .note {
color: rgba(0, 0, 0, 0.5);
display: inline-block;
margin-right: 20px;
}
.action.load {
position: absolute;
left: 4px;
top: 4px;
height: 16px;
line-height: 12px;
font-size: 20px;
width: 16px;
display: block;
}
.action.load .icon {
display: block;
width: 12px;
height: 12px;
position: absolute;
top: 10px;
left: 12px;
opacity: 0.3;
background: url(assets/icon-plus.svg) no-repeat center center;
}
.file {
display: inline-block;
padding: 8px 30px 8px 10px;
margin-right: 6px;
background: rgba(0, 0, 0, 0.08);
border-radius: 3px;
border: solid 1px rgba(0, 0, 0, 0.1);
color: rgba(0, 0, 0, 0.8);
white-space: nowrap;
position: relative;
line-height: 13px;
top: -2px;
}
.file .close {
background: url(assets/icon-close.svg) no-repeat center center;
opacity: 0.2;
border-radius: 3px;
color: rgb(162, 162, 162);
cursor: pointer;
display: inline-block;
font-size: 10px;
font-weight: bold;
height: 10px;
line-height: 10px;
padding: 4px;
position: absolute;
right: 4px;
top: 6px;
text-align: center;
text-shadow: -1px -1px 0.5px rgba(0, 0, 0, 0.4), 1px 1px 0.5px rgba(255, 255, 255, 0.2);
width: 10px;
}
.file .close:hover {
opacity: 0.5;
}
.simplify {
border-right: solid 1px #ddd;
border-left: solid 1px #ddd;
position: relative;
}
.simplify .note {
position: absolute;
right: 10px;
top: 4px;
font-size: 12px;
color: rgba(0, 0, 0, 0.3)
}
.simplify p {
margin: 4px 0 2px;
color: rgba(0, 0, 0, 0.5);
}
.simplify input {
margin-top: 8px;
}
.output {
width: 140px;
}
.action.download {
display: block;
height: 26px;
width: 140px;
line-height: 26px;
padding: 8px 16px;
}
.option {
display: inline-block;
padding: 8px 10px 8px 0;
margin-right: 10px;
color: #666;
}
.action {
text-decoration: none;
text-align: center;
padding: 8px 10px;
color: rgba(0, 0, 0, 0.5);
border-radius: 4px;
cursor: pointer;
text-decoration: none;
background: #666;
background-image: -webkit-linear-gradient(bottom, rgb(243,243,243) 0%, rgb(238,238,238) 36%, rgb(250,250,250) 72%);
border: solid 1px rgba(0, 0, 0, 0.2);
/*border-top: solid 1px white;*/
border-bottom: solid 1px rgba(0,0,0,0.3);
box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.map-container {
position: absolute;
right: 34px;
left: 236px;
top: 100px;
bottom: 20px;
background: hsl(210, 50%, 70%);
background-image: -webkit-radial-gradient(center 0, 100% 100%, hsl(210, 50%, 70%) 20%, hsl(210, 50%, 63%) 100%);
/*background-image: -webkit-radial-gradient(center 0, 100% 100%, rgb(255, 251, 242) 20%, rgb(247, 241, 223) 100%);*/
box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}
.map-container .default-load {
opacity: 0.6;
position: absolute;
width: 100%;
top: 35%;
height: 50px;
color: white;
border-radius: 4px;
text-align: center;
padding: 20px;
line-height: 1.5em;
}
.map-controls {
position: absolute;
top: 100px;
left: 30px;
bottom: 20px;
width: 170px;
padding-right: 10px;
}
.map-controls p {
margin: 0 0 10px;
color: #999;
font-size: 13px;
line-height: 1.5em;
}
.map-controls a {
opacity: 0.5;
}
.map-controls h4 {
font-weight: normal;
text-transform: uppercase;
font-size: 11px;
color: #666;
margin: 10px 0 10px;
border-top: solid 1px #ddd;
padding-top: 10px;
}
.map-controls select {
width: 100%;
}
.map {
}
.map-background {
shape-rendering: crispEdges;
stroke: rgba(255, 255, 255, 0.8);
stroke-width: 1px;
fill: rgba(255, 255, 255, 0);
}
.map path {
fill: rgba(255, 255, 255, 0.1);
stroke: rgba(255, 255, 255, 0.7);
}
.map path:hover {
fill: rgba(255, 255, 255, 0.14);
}
.map path.graticule{
fill: none;
stroke: white;
stroke-opacity: 0.4;
stroke-dasharray: 2, 2;
}
.crosshairs text {
fill: white;
font-size: 10px;
}
</style>
<table class="header">
<tr>
<td class="branding">
<span>The Distillery</span><br>
</td>
<td class="input">
<div class="files">
<span class="note">Upload GeoJSON files</span>
<a class="action load"><span class="icon"></span></a>
<input type="file" class="file-input" multiple="multiple" style="visibility: hidden;position: absolute;"></input>
</div>
</td>
<td class="simplify">
<p>Simplify Geometry</p>
<span class="note"><span class="value">100</span> of points retained / <span class="size">0KB</span></span>
<input type="range" class=""></input>
</td>
<td class="output">
<a class="action download">Download TopoJSON</a>
</td>
</tr>
</table>
<div class="map-container">
<div class="default-load">
Drag GeoJSON files here, use the uploader above,<br>
or, if you’re feeling lazy, <a href="#" class="sample states">use a sample file</a>
</div>
</div>
<div class="map-controls">
<p>This is a simple GUI for <a href="https://github.com/mbostock/topojson">TopoJSON</a>. Fork me on <a href="https://github.com/shancarter/distillery">Github</a></p>
<h4>Projection</h4>
<select class="projection"></select>
<h4>Details</h4>
</div>
</div>
<script src="lib.js"></script>
<script src="javascripts/control-panel.js"></script>
<script>
window.URL = (window.URL || window.webkitURL);
var width = 500,
height = 500;
var format = d3.format(".1f"),
formatLatLon = d3.format(".2f"),
formatPercent = d3.format(".1%"),
formatSize = d3.format("s");
var projection = d3.geo.mercator();
var bounds = [[-180, 90],[180, -90]],
centroid = [0, 0];
var path = d3.geo.path()
.projection(projection);
var inputData,
files = [],
parsedFiles = [],
topology,
feature;
var argv = {
quantization: 1e4,
"simplify-proportion": 1
};
var mapContainer = d3.select(".map-container");
var mapControls = d3.select(".map-controls");
var svg = mapContainer.append("svg")
.attr("class", "map")
.attr("width", width)
.attr("height", height);
var map = svg.append("g")
.attr("transform", "translate(20, 20)");
var graticule = d3.geo.graticule();
var mapBackground = map.append("rect")
.attr("class", "map-background");
var simplificationSlider = d3.select(".simplify input")
.attr("type", "range")
.attr("min", 10)
.attr("max", 1000)
.attr("step", 1)
.attr("value", argv["simplify-proportion"] * 1000)
.style("width", "100%")
.on("change", function() {
var value = argv["simplify-proportion"] = this.value / 1000;
d3.select(".simplify .value").text(formatPercent(value));
if (topology) simplify(), draw();
});
// Projection select
var availableProjections = ["mercator", "albersUsa", "equirectangular", "conicEqualArea", "conicConformal"];
var projectionSelect = mapControls.select(".projection")
.on("change", function() {
projection = (d3.geo[projectionSelect.node().value])();
path = d3.geo.path().projection(projection);
resetZoom();
draw();
});
var projections = projectionSelect.selectAll("option")
.data(availableProjections)
.enter().append("option")
.text(function(d) { return d; });
map.append("path")
.attr("class", "graticule")
// crosshairs
var crosshairs = map.append("g")
.attr("class", "crosshairs");
var latLonReadout = crosshairs.append("text");
map.on("mouseover", function() {
if (files.length) {
crosshairs.style("display", null)
map.on("mousemove", function() {
var mousePosition = d3.mouse(this),
latLon = projection.invert(mousePosition);
latLonReadout
.text(formatLatLon(latLon[0]) + ", " + formatLatLon(latLon[1]))
.attr("transform", "translate(" + (mousePosition[0] + 15) + "," + (mousePosition[1] + 15) + ")")
});
}
});
svg.on("mouseout", function() {
svg.on("mousemove", null);
crosshairs.style("display", "none")
})
// Download
// TODO add download geojson/topojson/svg select
var downloadButton = d3.select(".action.download")
downloadButton.on("mouseover", function() {
if (files.length) {
// Remove empty (or tiny) features.
// TODO Filter on draw? But that will require duplicating topology.
topojson.filter(simplified, {
"coordinate-system": options["coordinate-system"]
});
var url = window.URL.createObjectURL(new Blob([JSON.stringify(simplified)], { "type" : "application\/json" }));
// Restore non-filtered content.
processFiles();
downloadButton
.attr("download", files.map(function(f) { return f.name; }).join("-") + ".json")
.attr("href", url)
.on("mouseout", function(){
setTimeout(function() {
window.URL.revokeObjectURL(url);
}, 10);
});
}
});
function addJSON(j, filename) {
files.forEach(function(f, i) {
if (f.name === filename) {
throw "Filename already exists"
};
});
var file = {
name: filename
};
if (j.type === "Topology") {
// Is TopoJSON
// TODO convert to geojson and cache that result as a string into file.content
} else {
if (j.type === "FeatureCollection") {
file.json = j;
file.content = JSON.stringify(j);
} else if(j.type === "Feature") {
file.json = {
type: "FeatureCollection",
features: [j]
};
file.content = JSON.stringify(file.json);
}
}
files.push(file);
processFiles();
resetZoom();
draw();
}
function removeFile(name) {
var index;
files.forEach(function(f, i) {
if (f.name === name) { index = i; };
});
files.splice(index, 1);
processFiles();
draw();
}
function processFiles() {
options = {
"coordinate-system": "auto", // will be assigned by topojson.topology
"quantization": argv.quantization
};
var geoFeatures = {};
files.forEach(function(f) {
// Bring back original geojson
f.json = JSON.parse(f.content);
geoFeatures[f.name] = f.json;
});
// Convert and merge GeoJSON features into a TopoJSON topology.
topology = topojson.topology(geoFeatures, options);
// Pre-simplify.
topojson.presimplify(topology, {
"coordinate-system": options["coordinate-system"]
});
simplify();
}
function resetZoom() {
if (files.length) {
var projectionName = projectionSelect.node().value;
var feature = files[files.length - 1].feature;
projection
.scale(1)
.translate([0, 0]);
if (projectionName === "albersUsa") {
bounds = [[-130, 50], [-60, 23]];
} else {
bounds = d3.geo.bounds(feature);
}
var b = path.bounds(feature),
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];
if (projectionName === "conicEqualArea") {
projection
.rotate([-(bounds[0][0] + bounds[1][0]) / 2, 0])
.center([0, (bounds[0][1] + bounds[1][1]) / 2])
.translate([width / 2, height / 2])
.scale(s);
} else if(projectionName === "conicConformal") {
projection
.rotate([-(bounds[0][0] + bounds[1][0]) / 2, 0])
.center([0, (bounds[0][1] + bounds[1][1]) / 2])
// TODO .parallels([29.5, 45.5])
.translate([width / 2, height / 2])
.scale(s);
} else {
projection
.scale(s)
.translate(t);
}
graticule.extent(bounds)
d3.select(".graticule")
.datum(graticule)
.attr("d", path)
}
}
function draw() {
var fileContainer = d3.select(".files").selectAll(".file")
.data(files, function(d) { return d.name; });
var newFile = fileContainer.enter().insert("div", ".action")
.attr("class", "file");
newFile.append("span")
.text(function(d){ return d.name; });
newFile.append("a").attr("class", "close")
.on("click", function(d) {
removeFile(d.name);
});
fileContainer.exit().remove();
d3.select(".files .note").style("display", files.length ? "none" : null );
d3.select(".default-load").style("display", files.length ? "none" : null );
d3.select(".graticule").style("display", files.length ? null : "none" );
var f = map.selectAll(".file")
.data(files, function(d) { return d.name; });
f.enter().append("g").attr("class", "file");
f.exit().remove();
f.each(function(d) {
var g = d3.select(this);
var feature = g.selectAll("path")
.data(function(d) { return d.feature.features; }); // TODO assumes feature is a FeatureCollection
feature.enter()
.append("path")
.append("title")
.text(function(d) { return d.id; });
feature.exit().remove();
feature.attr("d", function(d) {
return path(d);
});
})
}
//
// Events
//
// Update simplified topology.
function simplify() {
// processFiles();
// Simplify (as a deep copy).
simplified = {
type: "Topology",
transform: topology.transform,
objects: topology.objects,
arcs: topojson.resimplify(topology, {
"coordinate-system": options["coordinate-system"],
"retain-proportion": +argv["simplify-proportion"]
}).arcs
};
d3.select(".simplify .size").text(formatSize(d3.round(JSON.stringify(simplified).length, -3)) + "B");
files.forEach(function(f) {
f.feature = topojson.feature(simplified, simplified.objects[f.name]);
});
}
// Window resize
window.onresize = function() {
resize();
draw();
};
function resize() {
var bbox = mapContainer.node().getBoundingClientRect();
width = bbox.width - 40;
height = bbox.height - 40;
svg.attr("width", bbox.width).attr("height", bbox.height);
mapBackground.attr("width", width).attr("height", height);
resetZoom();
}
resize();
//
// File Inputs
//
// File chooser
var fileInput = d3.select(".file-input").on("change", function(evt) {
handleFiles(this.files)
});
d3.select(".action.load").on("click", function() {
fileInput.node().click();
})
// Drag and drop
var dropTarget = document;
dropTarget.addEventListener("dragenter", dropKill, false);
dropTarget.addEventListener("dragexit", dropKill, false);
dropTarget.addEventListener("dragover", dropKill, false);
dropTarget.addEventListener("drop", drop, false);
function dropKill(evt) {
evt.stopPropagation();
evt.preventDefault();
}
function drop(evt) {
evt.stopPropagation();
evt.preventDefault();
var files = evt.dataTransfer.files;
if (files.length > 0) handleFiles(files);
}
function handleFiles(files) {
Array.prototype.slice.call(files).forEach(function(file) {
var fileName = file.name.split(".")[0],
reader = new FileReader();
reader.onload = function(evt) {
addJSON(JSON.parse(evt.target.result), fileName);
}
reader.readAsText(file);
});
}
//
// Sample data
//
d3.select(".sample.states").on("click", function(){
d3.event.preventDefault();
d3.json("samples/geojson/states.json", function(error, json) {
addJSON(json, "states");
})
});
</script>