I have a problem with d3.js. Markers display below the map instead on it.
Here's the code:
<!DOCTYPE html>
<meta charset="utf-8">
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="//d3js.org/d3.geo.projection.v0.min.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>
<script src="http://d3js.org/colorbrewer.v1.min.js"></script>
<script src="http://bl.ocks.org/emeeks/raw/f3105fda25ff785dc5ed/tile.js" type="text/javascript">
</script>
<script src="http://bl.ocks.org/emeeks/raw/f3105fda25ff785dc5ed/d3.quadtiles.js" type="text/javascript">
</script>
<script src="http://bl.ocks.org/emeeks/raw/f3105fda25ff785dc5ed/d3.geo.raster.js" type="text/javascript">
</script>
<script src="https://rawgit.com/emeeks/d3-carto-map/master/d3.carto.map.js" type="text/javascript">
</script>
<style>
.markerButton {
position: fixed;
top: 20px;
cursor: pointer;
z-index: 99;
}
body {
background: #fcfcfa;
}
.stroke {
fill: none;
stroke: #000;
stroke-width: 3px;
}
.fill {
fill: #fff;
}
.graticule {
fill: none;
stroke: #777;
stroke-width: .5px;
stroke-opacity: .5;
}
.land {
fill: #222;
}
.boundary {
fill: none;
stroke: #fff;
stroke-width: .5px;
}
</style>
<body onload="makeSomeMaps()">
<script>
var width = 960,
height = 500;
var projection = d3.geo.mollweide()
.scale(165)
.translate([width / 2, height / 2])
.precision(.1);
var path = d3.geo.path()
.projection(projection);
var graticule = d3.geo.graticule();
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
svg.append("defs").append("path")
.datum({type: "Sphere"})
.attr("id", "sphere")
.attr("d", path);
svg.append("use")
.attr("class", "stroke")
.attr("xlink:href", "#sphere");
svg.append("use")
.attr("class", "fill")
.attr("xlink:href", "#sphere");
svg.append("path")
.datum(graticule)
.attr("class", "graticule")
.attr("d", path);
d3.json("world-50m.json", function(error, world) {
if (error) throw error;
svg.insert("path", ".graticule")
.datum(topojson.feature(world, world.objects.land))
.attr("class", "land")
.attr("d", path);
svg.insert("path", ".graticule")
.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
.attr("class", "boundary")
.attr("d", path);
});
d3.select(self.frameElement).style("height", height + "px");
function circleMarker() {
var sizeScale = d3.scale.linear().domain([0,100,2000]).range([2,10,20]).clamp(true);
var randomDatapoint = "r" + Math.ceil(Math.random() * 7);
d3.selectAll("g.marker").selectAll("*").remove();
d3.selectAll("g.marker").append("circle")
.attr("class", "metro")
.attr("r", function(d) {return sizeScale(d[randomDatapoint])})
}
function makeSomeMaps() {
map = d3.carto.map();
d3.select("#map").call(map);
map.centerOn([-99,39],"latlong");
map.setScale(4);
map.refresh();
cityLayer = d3.carto.layer.csv();
cityLayer
.path("cities.csv")
.label("Metro Areas")
.cssClass("metro")
.renderMode("svg")
.x("x")
.y("y")
.clickableFeatures(true)
.on("load", function(){console.log(cityLayer.dataset())});
map.addCartoLayer(cityLayer);
}
</script>
<div id="map">
<button style="left: 340px;" class="markerButton" onclick="circleMarker();">Circle Marker</button>
</div>
</body>
</html>
Please find link to site live:
http://www.ewelinawoloszyn.com/mymap/d3_projection03.html
Perhaps it's something to do with map.centerOn?
Many thanks in advance for your help.
I suspect it's the asynchronous rendering nature of html/javascript. I had a similar issue in the past and I solved it by defining different layers/groups for the map and the markers. Something like:
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var map = svg.append("g");
var markers = svg.append("g");
and then append the map and the markers in these predefined layers. The markers will appear on top of the map because you define their layer after the map layer. In your case you should probably define a layer for each element (graticule layer etc.)
Related
I'm learning D3 and I'm trying to display data infomation on a scatterplot by hovering on the SVG circles. I take the data from a csv file (data is on the Solar System, with planet names, masses and radiuses) and all the circles show up correctly but when I try to console.log the data information (for instance the mass) on mouseover it does not log anything. The mouseover action is functioning OK but the console tells me that the value requested is "undefined".
Where did I mess up? This is my code:
<!DOCTYPE html>
<html lang="en">
<head>
<style type="text/css">
body{
background-color: black;
}
#chart{
background-color: black;
width: 800px;
height: 500px;
border: solid 1px white;
}
svg{
background-color: white;
}
.dot{
stroke: red;
stroke-width: 1px;
}
</style>
<script type="text/javascript" src="https://d3js.org/d3.v6.min.js"></script>
</head>
<body>
<div id="chart"></div>
<script type="text/javascript">
var width = 800;
var height = 500;
var circles;
var svg = d3.select('#chart')
.append('svg')
.attr('width', width + 'px')
.attr('height', height + 'px');
d3.csv('astro.csv').then(function(data){
xScale = d3.scaleLinear()
.domain([0,500])
.range([0, 800]);
circles = svg.selectAll('.dot')
.data(data)
.enter()
.append('circle')
.attr('class', '.dot')
.attr('cx', function(d){
return xScale(d.mass);
})
.attr('cy', 100)
.attr('r', 20)
.on('mouseover', function(d){
console.log(d.mass);
})
});
</script>
</body>
</html>
Since D3 V6, all mouse event handlers has an event passed as the first argument and data as the second. In the V5 or earlier, your code will work.
V6 or higher:
.on('mouseover', (event, d) => console.log(d.mass));
V5 or earlier:
.on('mouseover', d => console.log(d.mass));
I would like help to correct my code to click the marker circle element to pause or resume transition of this element along the line. My code moves marker along a line and I can pause and resume this transition using on click on button element but I would like to be able to click on the marker circle itself, not the button. I have used various references including :
http://www.nytimes.com/interactive/2013/09/25/sports/americas-cup-course.html
http://jsfiddle.net/meetamit/UJuWX/3/
http://jsfiddle.net/Y62Hq/2/
D3 tween - pause and resume controls
I would ultimately like to be able animate a marker along a geo path, pause and resume this at points along the path and click through on these points.
this is my code so far:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Need help</title>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://d3js.org/d3-array.v1.min.js"></script>
<script src="https://d3js.org/d3-geo.v1.min.js"></script>
<script src="https://d3js.org/d3-queue.v3.min.js"></script>
<style type="text/css">
body{
font-family:"Helvetica Neue", Helvetica, sans-serif;
color: red;
}
button {
position: absolute;
top: 15px;
left: 10px;
background: #004276;
padding-right: 26px;
border-radius: 2px;
cursor: pointer;
}
circle {
fill: steelblue;
stroke: pink;
stroke-width: 3px;
}
.point{
fill:green;
}
.line{
fill: none;
stroke: red;
stroke-width: 4;
stroke-dasharray: 4px,8px;
}
</style>
</head>
<body>
<button>Start</button>
<script>
var w = 960,
h = 500;
var duration = 10000;
var svg = d3.select("body").append("svg")
.attr("width", w)
.attr("height", h);
var line = d3.line()
.x(function(d){return (d)[0];})
.y(function(d){return (d)[1];});
var data =
[
[480, 200],
[580, 400],
[680, 100],
[780, 300],
[180, 300],
[280, 100],
[380, 400]
];
//path to animate
var linepath = svg.append("path")
.data([data])
.attr("d", line)
.attr('class', 'line')
.attr("d", function(d){
console.log(this);
return line(d)
});
var points = svg.selectAll("circle")
.data(data)
.enter()
.append("circle")
.attr("r", 7)
.attr("transform", function(d) { return "translate(" + (d) + ")"; })
.attr("class", "point");
var pauseValues = {
lastTime: 0,
currentTime: 0
};
var marker = svg.append("circle")
.attr("r", 19)
.attr("transform", "translate(" + (data[0]) + ")")
.on('click', function(d,i){
d3.select(this)
.style("fill", "orange")
.transition()
});
function transition() {
marker.transition()
.duration(duration - (duration * pauseValues.lastTime))
.attrTween("transform", translateAlong(linepath.node()))
.on("end", function(){
pauseValues = {
lastT: 0,
currentT: 0
};
transition()
});
}
function translateAlong(path) {
var l = path.getTotalLength();
return function(d, i, a) {
return function(t) {
t += pauseValues.lastTime;
var p = path.getPointAtLength(t * l);
pauseValues.currentTime = t;
return "translate(" + p.x + "," + p.y + ")";
};
};
}
d3.select('button').on('click',function(d,i){
var self = d3.select(this);
if (self.text() == "Pause"){
self.text('Start');
marker.transition()
.duration(0);
setTimeout(function(){
pauseValues.lastTime = pauseValues.currentTime;
}, 100);
}else{
self.text('Pause');
transition();
}
});
</script>
</body>
</html>
To check if the circle is moving in the click function use d3.active(), which...
... returns null if there is no such active transition on the specified node.
Like this:
.on('click', function(d, i) {
if (d3.active(this)) {
marker.transition();
setTimeout(function() {
pauseValues.lastTime = pauseValues.currentTime;
}, 100);
} else {
transition();
}
});
Here is your code with that change:
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://d3js.org/d3-array.v1.min.js"></script>
<script src="https://d3js.org/d3-geo.v1.min.js"></script>
<script src="https://d3js.org/d3-queue.v3.min.js"></script>
<style type="text/css">
body {
font-family: "Helvetica Neue", Helvetica, sans-serif;
color: red;
}
button {
position: absolute;
top: 15px;
left: 10px;
background: #004276;
padding-right: 26px;
border-radius: 2px;
cursor: pointer;
}
circle {
fill: steelblue;
stroke: pink;
stroke-width: 3px;
}
.point {
fill: green;
}
.line {
fill: none;
stroke: red;
stroke-width: 4;
stroke-dasharray: 4px, 8px;
}
</style>
<body>
<button>Start</button>
<script>
var w = 960,
h = 500;
var duration = 10000;
var svg = d3.select("body").append("svg")
.attr("width", w)
.attr("height", h);
var line = d3.line()
.x(function(d) {
return (d)[0];
})
.y(function(d) {
return (d)[1];
});
var data = [
[480, 200],
[580, 400],
[680, 100],
[780, 300],
[180, 300],
[280, 100],
[380, 400]
];
//path to animate
var linepath = svg.append("path")
.data([data])
.attr("d", line)
.attr('class', 'line')
.attr("d", function(d) {
return line(d)
});
var points = svg.selectAll("circle")
.data(data)
.enter()
.append("circle")
.attr("r", 7)
.attr("transform", function(d) {
return "translate(" + (d) + ")";
})
.attr("class", "point");
var pauseValues = {
lastTime: 0,
currentTime: 0
};
var marker = svg.append("circle")
.attr("r", 19)
.attr("transform", "translate(" + (data[0]) + ")")
.on('click', function(d, i) {
if (d3.active(this)) {
marker.transition();
setTimeout(function() {
pauseValues.lastTime = pauseValues.currentTime;
}, 100);
} else {
transition();
}
});
function transition() {
marker.transition()
.duration(duration - (duration * pauseValues.lastTime))
.attrTween("transform", translateAlong(linepath.node()))
.on("end", function() {
pauseValues = {
lastT: 0,
currentT: 0
};
transition()
});
}
function translateAlong(path) {
var l = path.getTotalLength();
return function(d, i, a) {
return function(t) {
t += pauseValues.lastTime;
var p = path.getPointAtLength(t * l);
pauseValues.currentTime = t;
return "translate(" + p.x + "," + p.y + ")";
};
};
}
d3.select('button').on('click', function(d, i) {
var self = d3.select(this);
if (self.text() == "Pause") {
self.text('Start');
marker.transition()
.duration(0);
setTimeout(function() {
pauseValues.lastTime = pauseValues.currentTime;
}, 100);
} else {
self.text('Pause');
transition();
}
});
</script>
</body>
I'm trying to add markers to d3.js map.Unfortunately I get error after clicking button ' circleMarker is not defined(…)'.
Here's my code:
<!DOCTYPE html>
<meta charset="utf-8">
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="//d3js.org/d3.geo.projection.v0.min.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>
<script src="http://d3js.org/colorbrewer.v1.min.js"></script>
<script src="http://bl.ocks.org/emeeks/raw/f3105fda25ff785dc5ed/tile.js" type="text/javascript">
</script>
<script src="http://bl.ocks.org/emeeks/raw/f3105fda25ff785dc5ed/d3.quadtiles.js" type="text/javascript">
</script>
<script src="http://bl.ocks.org/emeeks/raw/f3105fda25ff785dc5ed/d3.geo.raster.js" type="text/javascript">
</script>
<script src="https://rawgit.com/emeeks/d3-carto-map/master/d3.carto.map.js" type="text/javascript">
</script>
<style>
.markerButton {
position: fixed;
top: 20px;
cursor: pointer;
z-index: 99;
}
body {
background: #fcfcfa;
}
.stroke {
fill: none;
stroke: #000;
stroke-width: 3px;
}
.fill {
fill: #fff;
}
.graticule {
fill: none;
stroke: #777;
stroke-width: .5px;
stroke-opacity: .5;
}
.land {
fill: #222;
}
.boundary {
fill: none;
stroke: #fff;
stroke-width: .5px;
}
</style>
<body onload="makeSomeMaps()">
<script>
var width = 960,
height = 500;
var projection = d3.geo.mollweide()
.scale(165)
.translate([width / 2, height / 2])
.precision(.1);
var path = d3.geo.path()
.projection(projection);
var graticule = d3.geo.graticule();
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
svg.append("defs").append("path")
.datum({type: "Sphere"})
.attr("id", "sphere")
.attr("d", path);
svg.append("use")
.attr("class", "stroke")
.attr("xlink:href", "#sphere");
svg.append("use")
.attr("class", "fill")
.attr("xlink:href", "#sphere");
svg.append("path")
.datum(graticule)
.attr("class", "graticule")
.attr("d", path);
d3.json("world-50m.json", function(error, world) {
if (error) throw error;
svg.insert("path", ".graticule")
.datum(topojson.feature(world, world.objects.land))
.attr("class", "land")
.attr("d", path);
svg.insert("path", ".graticule")
.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
.attr("class", "boundary")
.attr("d", path);
});
d3.select(self.frameElement).style("height", height + "px");
function makeSomeMaps() {
map = d3.carto.map();
function circleMarker() {
var sizeScale = d3.scale.linear().domain([0,100,2000]).range([2,10,20]).clamp(true);
var randomDatapoint = "r" + Math.ceil(Math.random() * 7);
d3.selectAll("g.marker").selectAll("*").remove();
d3.selectAll("g.marker").append("circle")
.attr("class", "metro")
.attr("r", function(d) {return sizeScale(d[randomDatapoint])})
}
function makeSomeMaps() {
map = d3.carto.map();
d3.select("#map").call(map);
map.centerOn([-99,39],"latlong");
map.setScale(4);
map.refresh();
cityLayer = d3.carto.layer.csv();
cityLayer
.path("cities.csv")
.label("Metro Areas")
.cssClass("metro")
.renderMode("svg")
.x("x")
.y("y")
.clickableFeatures(true)
.on("load", function(){console.log(cityLayer.dataset())});
map.addCartoLayer(cityLayer);
}
}
</script>
<div id="map">
<button style="left: 340px;" class="markerButton" onclick="circleMarker();">Circle Marker</button>
</div>
</body>
</html>
I'm following example form here:
http://bl.ocks.org/emeeks/f8c0220c54ec8347ea95
Perhaps it doesn't work because I use different type of map than in example?
Any advice much appreciated.
Many thanks in advance.
I'm beginner in D3. I would like to know how to include in text letters like č,š,ž..
I included line with utf-8:
<meta charset="utf-8">
I also tried this in the head:
<script type="text/javascript" charset="utf-8" src="D3/d3.js"></script>
Letters like č,š or ž are shown like �. That is the same with letters from .text("Število...") and also with words from loaded file *.csv.
I tried change letter č with code
č
but no success.
What can I do? Please help.
Here is my code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" >
<title>Slo</title>
<script type="text/javascript" src="D3/d3.js"></script>
<style type="text/css">
.naslov {
fill: #505050;
font: 18px sans-serif;}
.podnaslov {
fill: #777;
font: 12px sans-serif;}
.besedilo {
fill: #777;
font: 8px sans-serif;}
.land {
fill: #ccc;
stroke: #fff;
stroke-linejoin: round;
stroke-linecap: round;
stroke-width: .5;}
</style>
</head>
<body>
<script type="text/javascript">
var w = 1000;
var h = 450;
var formatNumber = d3.format(",.0f");
var radius = d3.scale.sqrt()
.domain([0, 1e6])
.range([1, 90]);
//Projekcija
var projection = d3.geo.mercator()
.scale(11000)
.translate([-2480,10270]);
//Path generator
var path = d3.geo.path()
.projection(projection);
//Create SVG element
var svg = d3.select("body").append("svg")
.attr("width", w)
.attr("height", h)
//Napisi
var naslov = svg.append("text")
.text("PREBIVALSTVO V SLOVENIJI PO NASELJIH")
.attr("class", "naslov")
.attr("x",15).attr("y",30);
var podnaslov = svg.append("text")
.text("LETA 2002 in 2013")
.attr("class", "podnaslov")
.attr("x",15).attr("y",60);
var besedilo1 = svg.append("text")
.attr("class", "besedilo")
.text("Velikost kroga kaže na stevilo prebivalcev v naselju leta 2013.").attr("x",15).attr("dy",100);
var besedilo2 = svg.append("text")
.attr("class", "besedilo")
.text("Prikazani so podatki za naselja, ki so imela leta 2013 vec kot 1300 prebivalcev.").attr("x",15).attr("dy",112);
var besedilo3 = svg.append("text")
.attr("class", "besedilo")
.text("Zadrži miško na krogih in si oglej podatke.").attr("x",15).attr("dy",124);
//Load in GeoJSON data
d3.json("Obstara.geojson", function (data){
svg.selectAll("path")
.data(data.features)
.enter()
.append("path")
.attr("d", path)
.attr("class","land")
});
//Load mesta
d3.csv("Mesta_02_13.csv", function(error,podatki) {
if (error) return console.error(erorr);
svg.selectAll("circle")
.data(podatki)
.enter()
.append("circle")
.style("fill", function(d) {
if (d.trinajst-d.dva <= 0) {return "#9D5355"}
else { return "#006699"};})
.attr("cx", function(d) {return projection([d.lon, d.lat])[0];})
.attr("cy", function(d) {return projection([d.lon, d.lat])[1];})
.attr("r", function(d) { return radius(d.trinajst); })
.style("stroke","grey")
.style("stroke-width", '0.3px')
.style("opacity", 0.6)
.on("mouseover", function(){d3.select(this).style("fill", "aliceblue");})
.on("mouseout", function(){d3.select(this).style("fill", function(d) {
if (d.trinajst-d.dva <= 0) {return "#9D5355"}
else { return "#006699" };});})
.append("title")
.text(function(d) { return d.name + "\n2002: " + d.dva + "\n2013: " + d.trinajst; })
});
</script>
</body>
I loaded csv file where are also included names with č,š,ž letters:
name,lat,lon,dva,trinajst
Ljubljana,46.0605,14.5166,258873,274826
Maribor,46.5620,15.6482,93847,94809
Celje,46.2524,15.2765,37834,37490
Mengeš,46.1686,14.5731,5557,6202
...
As may others have the same problem:
First you need to change the encoding of the document and save it once in UTF-8 format, and then put your UTF-8 texts inside that document.
I a trying to make a map with D3 and TopoJSON for the Netherlands, including the provinces.
This is the code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>D3 Test</title>
<script type="text/javascript" src="http://localhost/webserver/d3/d3.js"></script>
<script type="text/javascript" src="http://localhost/webserver/topojson/topojson.js"></script>
<style type="text/css">
div.bar {
display: inline-block;
width: 20px;
height: 75px;
background-color: teal;
margin-right: 2px;
}
.pumpkin {
fill: rgba(128, 0, 128, 0.75);
stroke: yellow;
stroke-width: 5;
}
.apple {
fill: rgba(0, 255, 0, 0.55);
stroke: green;
stroke-width: 15;
}
.orange {
fill: rgba(255, 255, 0, 0.55);
stroke: orange;
stroke-width: 10;
}
.subunit { fill: #cdc; }
.subunit-label {
fill: #777;
fill-opacity: .25;
font-size: 30px;
font-weight: 300;
text-anchor: middle;}
.provincie {fill: none; }
.Utrecht {fill: #ddd; }
.Zuid-Holland {fill: #dde; }
.Noord-Holland {fill: #dee; }
.Drenthe {fill: #aae; }
.Gelderland {fill: #eee; }
.Friesland {fill: #ddc; }
.Groningen {fill: #dcc; }
.Limburg {fill: #ccc; }
.Noord-Brabant {fill: #ddb; }
.Overijssel {fill: #dbb; }
.Zeeland {fill: #bbb; }
</style>
</head>
<body>
<script type="text/javascript">
var width = 960, height = 860;
var projection = d3.geo.albers()
.center([6, 49.40])
.rotate([0, -1.9])
.parallels([50, 60])
.scale(11000)
.translate([width / 2, height / 2]);
var path = d3.geo.path()
.projection(projection);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
d3.json("http://localhost/webserver/data/nl.json", function(error, nl) {
svg.selectAll(".subunit")
.data(topojson.object(nl, nl.objects.subunits).geometries)
.enter().append("path")
.attr("class", function(d) { return "subunit " + d.id; })
.attr("d", path);
svg.selectAll(".subunit-label")
.data(topojson.object(nl, nl.objects.subunits).geometries)
.enter().append("text")
.attr("x", -20)
.attr("y", -50)
.attr("class", function(d) { return "subunit-label " + d.id; })
.attr("transform", function(d) { return "translate(" + path.centroid(d) + ")"; })
.attr("dy", ".35em")
.text(function(d) { return d.properties.name; });
svg.selectAll(".provincie")
.data(topojson.object(nl, nl.objects.provincies).geometries)
.enter().append("path")
.attr("class", function(d) { return "provincie " + d.properties.name; })
.attr("d", path);
svg.append("path")
.datum(topojson.object(nl, nl.objects.places))
.attr("d", path)
.attr("class", "place");
svg.selectAll(".place-label")
.data(topojson.object(nl, nl.objects.places).geometries)
.enter().append("text")
.attr("class", "place-label")
.attr("transform", function(d) { return "translate(" + projection(d.coordinates) + ")"; })
.attr("dy", ".35em").text(function(d) { return d.properties.name; });
svg.selectAll(".place-label")
.attr("x", function(d) { return d.coordinates[0] > -1 ? 10 : -10; })
.style("text-anchor", function(d) { return d.coordinates[0] > -1 ? "start" : "end"; });
});
</script>
</body>
</html>
The result is the map of the Netherlands, however it doesn't contain the provinces (with colors and borders).
I get the following error:
Uncaught TypeError: Cannot read property 'type' of undefined topojson.js:187
This is line 186 and 187:
function geometry(o) {
var t = o.type, g = t === "GeometryCollection" ? {type: t, geometries: o.geometries.map(geometry)}
It looks like you are referencing an object that doesn't exist in your topology.
Is it possible your TopoJSON file uses the English spelling of "provinces" rather than the Dutch "provincies"? If it did, then nl.objects.provincies would be null, and you'd either need to refer to nl.objects.provinces in your code, or edit the TopoJSON file to use the Dutch spelling "provincies" instead.
Can you post the contents of nl.json so we can take a look (say, on dropbox)?