pbogden/README.md

## README.md

      
    Raw
  

              README.md
            
          
    Various homework assignments for Fall 2015

  
## index.html

<!DOCTYPE html>
<meta charset="utf-8">
<style>

.axis text {
  font: 12px sans-serif;
}
.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

.dot {
  stroke: #000;
}

</style>
<svg class="chart"></svg>
<body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<script>

var url = "http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_day.geojson";

var margin = {top: 50, right: 50, bottom: 50, left: 50},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var x = d3.scale.linear()
    .range([0, width]);

var y = d3.scale.linear()
    .range([height, 0]);

var color = d3.scale.category10();

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");

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

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

d3.json(url, function(error, data) {
    if (error) return console.log(error);

    var quakes = data.features;  // This is the array of earthquake objects

    // Accessors (defined here, rather than later as anonymous functions)
    var quakeLon = function(d) { return d.geometry.coordinates[0]; };
    var quakeLat = function(d) { return d.geometry.coordinates[1]; };
    var quakeBin = function(d) { return Math.floor( d.properties.mag ); };

    //set X input domain as the min/max longitude values
    x.domain(d3.extent(quakes, quakeLon));  // Notice how we're using an accessor

    //set Y input domain as the min/max latitude values
    y.domain(d3.extent(quakes, quakeLat));

    color.domain(d3.range(11));

    //append the x axis
    chart.append("g")
          .attr("class", "x axis")
          .attr("transform", "translate(0," + height + ")")
          .call(xAxis)
    .append("text")
          .attr("class", "label")
          .attr("x", width)
          .attr("y", -6)
          .style("text-anchor", "end")
          .text("Longitude");

    //append the y axis
    chart.append("g")
          .attr("class", "y axis")
          .call(yAxis)
    .append("text")
          .attr("class", "label")
          .attr("transform", "rotate(-90)")
          .attr("y", 6)
          .attr("dy", ".71em")
          .style("text-anchor", "end")
          .text("Latitude")

    //bind the data to the dots
    chart.selectAll(".dot")
        .data(quakes)  // Note: the array of earthquake objects is "data.features"
    .enter().append("circle")
        .attr("class", "dot")
        .attr("r", 3.5)
        .attr("cx", function(d) { return x( quakeLon(d) ); })
        .attr("cy", function(d) { return y( quakeLat(d) ); })
        .style("fill", function(d) { return color( quakeBin(d) ); });

    //LEGEND
    var legend = chart.selectAll(".legend")
        .data(color.domain())
    .enter().append("g")
        .attr("class", "legend")
        .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });

    legend.append("rect")
        .attr("x", width - 18)
        .attr("width", 18)
        .attr("height", 18)
        .style("fill", color);

    legend.append("text")
        .attr("x", width - 24)
        .attr("y", 9)
        .attr("dy", ".35em")
        .style("text-anchor", "end")
        .text(function(d) { return d; });

    //append title
    chart.append("text")
        .attr("text-anchor", "middle")
        .attr("x", width/2)
        .attr("y", -margin.top/2)
        .attr("dy", "+.75em")
        .text("All Earthquakes, Past Day");
});

</script>

	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	.axis text {
	font: 12px sans-serif;
	}
	.axis path,
	.axis line {
	fill: none;
	stroke: #000;
	shape-rendering: crispEdges;
	}

	.dot {
	stroke: #000;
	}

	</style>
	<svg class="chart"></svg>
	<body>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
	<script>

	var url = "http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_day.geojson";

	var margin = {top: 50, right: 50, bottom: 50, left: 50},
	width = 960 - margin.left - margin.right,
	height = 500 - margin.top - margin.bottom;

	var x = d3.scale.linear()
	.range([0, width]);

	var y = d3.scale.linear()
	.range([height, 0]);

	var color = d3.scale.category10();

	var xAxis = d3.svg.axis()
	.scale(x)
	.orient("bottom");

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

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

	d3.json(url, function(error, data) {
	if (error) return console.log(error);

	var quakes = data.features; // This is the array of earthquake objects

	// Accessors (defined here, rather than later as anonymous functions)
	var quakeLon = function(d) { return d.geometry.coordinates[0]; };
	var quakeLat = function(d) { return d.geometry.coordinates[1]; };
	var quakeBin = function(d) { return Math.floor( d.properties.mag ); };

	//set X input domain as the min/max longitude values
	x.domain(d3.extent(quakes, quakeLon)); // Notice how we're using an accessor

	//set Y input domain as the min/max latitude values
	y.domain(d3.extent(quakes, quakeLat));

	color.domain(d3.range(11));

	//append the x axis
	chart.append("g")
	.attr("class", "x axis")
	.attr("transform", "translate(0," + height + ")")
	.call(xAxis)
	.append("text")
	.attr("class", "label")
	.attr("x", width)
	.attr("y", -6)
	.style("text-anchor", "end")
	.text("Longitude");

	//append the y axis
	chart.append("g")
	.attr("class", "y axis")
	.call(yAxis)
	.append("text")
	.attr("class", "label")
	.attr("transform", "rotate(-90)")
	.attr("y", 6)
	.attr("dy", ".71em")
	.style("text-anchor", "end")
	.text("Latitude")

	//bind the data to the dots
	chart.selectAll(".dot")
	.data(quakes) // Note: the array of earthquake objects is "data.features"
	.enter().append("circle")
	.attr("class", "dot")
	.attr("r", 3.5)
	.attr("cx", function(d) { return x( quakeLon(d) ); })
	.attr("cy", function(d) { return y( quakeLat(d) ); })
	.style("fill", function(d) { return color( quakeBin(d) ); });

	//LEGEND
	var legend = chart.selectAll(".legend")
	.data(color.domain())
	.enter().append("g")
	.attr("class", "legend")
	.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });

	legend.append("rect")
	.attr("x", width - 18)
	.attr("width", 18)
	.attr("height", 18)
	.style("fill", color);

	legend.append("text")
	.attr("x", width - 24)
	.attr("y", 9)
	.attr("dy", ".35em")
	.style("text-anchor", "end")
	.text(function(d) { return d; });

	//append title
	chart.append("text")
	.attr("text-anchor", "middle")
	.attr("x", width/2)
	.attr("y", -margin.top/2)
	.attr("dy", "+.75em")
	.text("All Earthquakes, Past Day");
	});

	</script>