Mercurial Mercurial > periplus / file revision
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | comparison | raw | help
Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
toolkit/javascript/d3/examples/mercator/mercator.html
author Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
Fri, 18 Apr 2014 14:31:58 +0200
changeset 51 79833eaa394a
parent 47 c0b4a8b5a012
permissions -rw-r--r--
set up second level for navigation

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>Mercator Projection</title>
    <script type="text/javascript" src="../../d3.js"></script>
    <script type="text/javascript" src="../../d3.geo.js"></script>
    <script type="text/javascript" src="../../lib/jquery/jquery.min.js"></script>
    <script type="text/javascript" src="../../lib/jquery-ui/jquery-ui.min.js"></script>
    <style type="text/css">

@import url("../../lib/jquery-ui/jquery-ui.css");

body, .ui-widget {
  font: 14px Helvetica Neue;
}

svg {
  width: 960px;
  height: 500px;
  border: solid 1px #ccc;
  background: #eee;
}

line {
  stroke: brown;
  stroke-dasharray: 4,2;
}

path {
  fill: #ccc;
  stroke: #fff;
}

div {
  width: 960px;
}

    </style>
  </head>
  <body>
    <h3>Mercator Projection</h3>
    <script type="text/javascript">

// Our projection.
var xy = d3.geo.mercator(),
    path = d3.geo.path().projection(xy);

var states = d3.select("body")
  .append("svg:svg")
  .append("svg:g")
    .attr("id", "states");

var equator = d3.select("svg")
  .append("svg:line")
    .attr("x1", "0%")
    .attr("x2", "100%");

d3.json("../data/world-countries.json", function(collection) {

  states
    .selectAll("path")
      .data(collection.features)
    .enter().append("svg:path")
      .attr("d", path)
    .append("svg:title")
      .text(function(d) { return d.properties.name; });

  equator
      .attr("y1", xy([0, 0])[1])
      .attr("y2", xy([0, 0])[1])
});

function refresh() {
  states
    .selectAll("path")
      .attr("d", path);

  equator
      .attr("y1", xy([0, 0])[1])
      .attr("y2", xy([0, 0])[1])

  d3.select("#scale span")
      .text(xy.scale());
  d3.select("#translate-x span")
      .text(xy.translate()[0]);
  d3.select("#translate-y span")
      .text(xy.translate()[1]);
}

    </script><p>
    <div id="scale">scale: <span>500</span></div><p>
    <div id="translate-x">translate.x: <span>480</span></div>
    <div id="translate-y">translate.y: <span>250</span></div>
    <script type="text/javascript">

$("#scale").slider({
  min: 0,
  max: 3000,
  value: 500,
  slide: function(event, ui) {
    xy.scale(ui.value);
    refresh();
  }
});

$("#translate-x").slider({
  min: -2000,
  max: 2000,
  value: 480,
  slide: function(event, ui) {
    var translate = xy.translate();
    translate[0] = ui.value;
    xy.translate(translate);
    refresh();
  }
});

$("#translate-y").slider({
  min: -2000,
  max: 2000,
  value: 250,
  slide: function(event, ui) {
    var translate = xy.translate();
    translate[1] = ui.value;
    xy.translate(translate);
    refresh();
  }
});

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