Space Stations

Space station orbit data in Two-Element Format. Data collected at 1:40am PDT August 8, 2015.

<!DOCTYPE html>
<meta charset="utf-8">
<title>Space Stations</title>
<style>
svg {
  font: 8px sans-serif;
}

.foreground path {
  fill: none;
  stroke: #222;
  stroke-opacity: 0.4;
  pointer-events: none;
  stroke-width: 1px;
}
 
.axis .title {
  font-size: 8px;
  font-weight: bold;
  text-transform: uppercase;
  transform: rotate(-12deg) translate(-5px,-6px);
}

.axis line,
.axis path {
  fill: none;
  stroke: #000;
  stroke-width: 1px;
}

.brush .extent {
  fill-opacity: .3;
  stroke: #fff;
  stroke-width: 1px;
}

pre {
  width: 900px;
  margin: 10px 30px;
  tab-size: 25;
  font-size: 12px;
  overflow: auto;
}
</style>
<body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<script>

var margin = {top: 50, right: 80, bottom: 20, left: 100},
    width = 960 - margin.left - margin.right,
    height = 340 - margin.top - margin.bottom;

var dimensions = [
  {
    key: "name",
    description: "Name",
    type: types["String"]
  },
  {
    key: "satelliteNumber",
    description: "SatelliteNumber",
    type: types["String"]
  },
  {
    key: "classification",
    description: "Classification",
    type: types["String"]
  },
  {
    key: "launchNumber",
    description: "Launch Number",
    type: types["Number"]
  },
  {
    key: "launchPiece",
    description: "Launch Piece",
    type: types["String"]
  },
  {
    key: "epochYear",
    description: "Epoch Year",
    type: types["String"]
  },
  {
    key: "epochDay",
    description: "Epoch Day",
    type: types["Number"],
    domain: [0,360]
  },
  {
    key: "inclination",
    description: "inclination",
    type: types["Number"],
    domain: [0,90]
  },
  {
    key: "rightAscension",
    description: "Right Ascension",
    type: types["Number"],
    domain: [0,360]
  },
  {
    key: "eccentricity",
    description: "Eccentricity",
    type: types["Number"],
    domain: [0,0.002]
  },
  {
    key: "perigee",
    description: "Perigee",
    type: types["Number"],
    domain: [0,360]
  },
  {
    key: "meanAnomaly",
    description: "Mean Anomaly",
    type: types["Number"],
    domain: [0,360]
  },
  {
    key: "meanMotion",
    description: "Mean Motion",
    type: types["Number"]
  },
  {
    key: "firstDerivMeanMotion",
    description: "First Deriv Mean Motion",
    type: types["Number"]
  }
];

var x = d3.scale.ordinal()
    .domain(dimensions.map(function(dim) { return dim.key; }))
    .rangePoints([0, width]);

var line = d3.svg.line()
    .defined(function(d) { return !isNaN(d[1]); });

var yAxis = d3.svg.axis()
    .orient("left");

var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

var output = d3.select("body").append("pre");

var foreground = svg.append("g")
  .attr("class", "foreground");

var axes = svg.selectAll(".axis")
    .data(dimensions)
  .enter().append("g")
    .attr("class", "axis")
    .attr("transform", function(d) { return "translate(" + x(d.key) + ")"; });

d3.csv("stations.csv", function(error, data) {
  if (error) throw error;

data.forEach(function(d) {
    dimensions.forEach(function(p) {
      d[p.key] = p.type.coerce(d[p.key]);
    });
  });

// type/dimension default setting happens here
  dimensions.forEach(function(dim) {
    if (!("domain" in dim)) {
      // detect domain using dimension type's extent function
      dim.domain = d3.functor(dim.type.extent)(data.map(function(d) { return d[dim.key]; }));

// TODO - this line only works because the data encodes data with integers
      // Sorting/comparing should be defined at the type/dimension level
      dim.domain.sort(function(a,b) {
        return a - b;
      });
    }
    if (!("scale" in dim)) {
      // use type's default scale for dimension
      dim.scale = dim.type.defaultScale.copy();
    }
    dim.scale.domain(dim.domain);
  });

foreground.selectAll("path")
      .data(data)
    .enter().append("path")
      .attr("d", draw)
      .style("stroke", function(d) { return "#6ac"; });

axes.append("g")
      .attr("class", "axis")
      .each(function(d) {
        var renderAxis = "axis" in d
          ? d.axis.scale(d.scale)  // custom axis
          : yAxis.scale(d.scale);  // default axis
        d3.select(this).call(renderAxis);
      })
    .append("text")
      .attr("class", "title")
      .attr("text-anchor", "start")
      .text(function(d) { return "description" in d ? d.description : d.key; });

// Add and store a brush for each axis.
  axes.append("g")
      .attr("class", "brush")
      .each(function(d) {
        d3.select(this).call(d.brush = d3.svg.brush()
          .y(d.scale)
          .on("brushstart", brushstart)
          .on("brush", brush));
      })
    .selectAll("rect")
      .attr("x", -8)
      .attr("width", 16);

output.text(d3.tsv.format(data));

function draw(d) {
    return line(dimensions.map(function(dim) {
      return [x(dim.key), dim.scale(d[dim.key])];
    }));
  }

function brushstart() {
    d3.event.sourceEvent.stopPropagation();
  }

// Handles a brush event, toggling the display of foreground lines.
  function brush() {
    var actives = dimensions.filter(function(p) { return !p.brush.empty(); }),
        extents = actives.map(function(p) { return p.brush.extent(); });

var selected = [];

d3.selectAll(".foreground path").style("display", function(d) {
      if (actives.every(function(dim, i) {
          // test if point is within extents for each active brush
          return dim.type.within(d[dim.key], extents[i], dim);
        })) {
        selected.push(d);
        return null;
      }
      return "none";
    });

output.text(d3.tsv.format(selected));
  }
});

</script>

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js