jjelosua/README.md

## README.md

      
    Raw
  

              README.md
            
          
    Intro d3js

### Example23 - interactivity
Built with blockbuilder.org

  
## index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Intro d3js examples</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
    <style>
      body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
      rect:hover {
        cursor: pointer;
      }
      svg text {
        pointer-events: none;
      }
    </style>
  </head>
  <body>
    <h1>Intro d3js - example23</h1>
    <!--<p> previous paragraph</p>-->
    <script type="text/javascript">
    	//Width and height
      var w = 600;
      var h = 250;
      var offset = 10;
      //Define sort order flag
      var sortOrder = false;

      var dataset = [ 5, 10, 13, 19, 21, 25, 22, 18, 15, 13,
              11, 12, 15, 20, 18, 17, 16, 18, 23, 25 ];

      var xScale = d3.scale.ordinal()
              .domain(d3.range(dataset.length))
              .rangeRoundBands([0, w], 0.05);

      var yScale = d3.scale.linear()
              .domain([0, d3.max(dataset)])
              .range([h, 0]);

      //Create SVG element
      var svg = d3.select("body")
            .append("svg")
            .attr("width", w)
            .attr("height", h);

      //Create bars
      svg.selectAll("rect")
         .data(dataset)
         .enter()
         .append("rect")
         .attr("x", function(d, i) {
             return xScale(i);
         })
         .attr("y", function(d) {
             return yScale(d);
         })
         .attr("width", xScale.rangeBand())
         .attr("height", function(d) {
             return h - yScale(d);
         })
         .attr("fill", function(d) {
          return "rgb(0, 0, " + (d * 10) + ")";
         })
         .on("mouseover", function() {
             d3.select(this)
               .attr("fill", "orange");
         })
         .on("mouseout", function(d) {
           d3.select(this)
            .attr("fill", "rgb(0, 0, " + (d * 10) + ")");
         })
         .on("click", function() {
             sortBars();
         });

      //Create labels
      svg.selectAll("text")
         .data(dataset)
         .enter()
         .append("text")
         .text(function(d) {
             return d;
         })
         .attr("text-anchor", "middle")
         .attr("x", function(d, i) {
             return xScale(i) + xScale.rangeBand() / 2;
         })
         .attr("y", function(d) {
             return yScale(d) + offset;
         })
         .attr("font-family", "sans-serif")
         .attr("font-size", "10px")
         .attr("fill", "white");

      //Define sort function
      var sortBars = function() {

        //Flip value of sortOrder
        sortOrder = !sortOrder;

        svg.selectAll("rect")
            .sort(function(a, b) {
                if (sortOrder) {
                  return d3.ascending(a, b);
                } else {
                  return d3.descending(a, b);
                }
            })
            .transition()
            .delay(function(d, i) {
              return i * 50;
            })
            .duration(1000)
            .attr("x", function(d, i) {
              return xScale(i);
            });

        svg.selectAll("text")
            .sort(function(a, b) {
              if (sortOrder) {
                return d3.ascending(a, b);
              } else {
                return d3.descending(a, b);
              }
            })
            .transition()
            .delay(function(d, i) {
              return i * 50;
            })
            .duration(1000)
            .attr("x", function(d, i) {
              return xScale(i) + xScale.rangeBand() / 2;
            })
            .attr("y", function(d) {
                return yScale(d) + offset;
            });
      };
      </script>
  </body>
</html>

## thumbnail.png

      
    Raw
  

              thumbnail.png
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Intro d3js examples</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
	<style>
	body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
	rect:hover {
	cursor: pointer;
	}
	svg text {
	pointer-events: none;
	}
	</style>
	</head>
	<body>
	<h1>Intro d3js - example23</h1>
	<!--<p> previous paragraph</p>-->
	<script type="text/javascript">
	//Width and height
	var w = 600;
	var h = 250;
	var offset = 10;
	//Define sort order flag
	var sortOrder = false;

	var dataset = [ 5, 10, 13, 19, 21, 25, 22, 18, 15, 13,
	11, 12, 15, 20, 18, 17, 16, 18, 23, 25 ];

	var xScale = d3.scale.ordinal()
	.domain(d3.range(dataset.length))
	.rangeRoundBands([0, w], 0.05);

	var yScale = d3.scale.linear()
	.domain([0, d3.max(dataset)])
	.range([h, 0]);

	//Create SVG element
	var svg = d3.select("body")
	.append("svg")
	.attr("width", w)
	.attr("height", h);

	//Create bars
	svg.selectAll("rect")
	.data(dataset)
	.enter()
	.append("rect")
	.attr("x", function(d, i) {
	return xScale(i);
	})
	.attr("y", function(d) {
	return yScale(d);
	})
	.attr("width", xScale.rangeBand())
	.attr("height", function(d) {
	return h - yScale(d);
	})
	.attr("fill", function(d) {
	return "rgb(0, 0, " + (d * 10) + ")";
	})
	.on("mouseover", function() {
	d3.select(this)
	.attr("fill", "orange");
	})
	.on("mouseout", function(d) {
	d3.select(this)
	.attr("fill", "rgb(0, 0, " + (d * 10) + ")");
	})
	.on("click", function() {
	sortBars();
	});

	//Create labels
	svg.selectAll("text")
	.data(dataset)
	.enter()
	.append("text")
	.text(function(d) {
	return d;
	})
	.attr("text-anchor", "middle")
	.attr("x", function(d, i) {
	return xScale(i) + xScale.rangeBand() / 2;
	})
	.attr("y", function(d) {
	return yScale(d) + offset;
	})
	.attr("font-family", "sans-serif")
	.attr("font-size", "10px")
	.attr("fill", "white");

	//Define sort function
	var sortBars = function() {

	//Flip value of sortOrder
	sortOrder = !sortOrder;

	svg.selectAll("rect")
	.sort(function(a, b) {
	if (sortOrder) {
	return d3.ascending(a, b);
	} else {
	return d3.descending(a, b);
	}
	})
	.transition()
	.delay(function(d, i) {
	return i * 50;
	})
	.duration(1000)
	.attr("x", function(d, i) {
	return xScale(i);
	});

	svg.selectAll("text")
	.sort(function(a, b) {
	if (sortOrder) {
	return d3.ascending(a, b);
	} else {
	return d3.descending(a, b);
	}
	})
	.transition()
	.delay(function(d, i) {
	return i * 50;
	})
	.duration(1000)
	.attr("x", function(d, i) {
	return xScale(i) + xScale.rangeBand() / 2;
	})
	.attr("y", function(d) {
	return yScale(d) + offset;
	});
	};
	</script>
	</body>
	</html>