tgsuarez/.block

## .block
license: mit

## README.md

      
    Raw
  

              README.md
            
          
    This is the code for Chapter 10, Figure 4 from D3.js in Action that shows the effect on the position of elements from changing to .size() function of d3.layout.grid().
forked from emeeks's block: Ch. 10, Fig. 4 - D3.js in Action

  
## index.html
<html>
<head>
  <title>D3 in Action Chapter 10 - Example 2</title>
  <meta charset="utf-8" />
<script src="http://d3js.org/colorbrewer.v1.min.js" type="text/JavaScript"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
</head>
<style>
  svg {
    height: 500px;
    width: 500px;
    border: 1px solid gray;
  }
</style>
<body>
  <div id="viz">
  <svg></svg>
</div>
</body>
  <footer>

<script>
  d3.json("tweets.json", function(error, data) {
      makeAGrid(data);
    })

  function makeAGrid(data) {
    var grid = d3.layout.grid();
    grid.size([400,400]);
    var griddedData = grid(data.tweets);

    d3.select("svg")
    .append("g")
    .attr("transform", "translate(50,50)")
    .selectAll("circle").data(griddedData)
    .enter()
    .append("circle")
    .attr("cx", function(d) {return d.x})
    .attr("cy", function(d) {return d.y})
    .attr("r", 20)
    .style("fill", "pink")

    var fakeTweets = []
    for (x = 0;x<12;x++) {
      var tweet = {id: x, content: "Fake Tweet #" + x};
      fakeTweets.push(tweet);
    }
      var doubledArray = data.tweets.concat(fakeTweets);

      var newGriddedData = grid(doubledArray);

    d3.select("g").selectAll("circle").data(newGriddedData)
    .enter()
    .append("circle")
    .attr("cx", 0)
    .attr("cy", 0)
    .attr("r", 20)
    .style("fill", "darkred");

    d3.select("g").selectAll("circle")
    .transition()
    .duration(1000)
    .attr("cx", function(d) {return d.x})
    .attr("cy", function(d) {return d.y})
    .each("end", resizeGrid1)

    function resizeGrid1() {
      grid.size([200,200])
      grid(doubledArray)

      d3.select("g").selectAll("circle")
        .transition()
        .duration(1000)
        .attr("cx", function(d) {return d.x})
        .attr("cy", function(d) {return d.y})
        .each("end", resizeGrid2)
    }

    function resizeGrid2() {
      grid.size([200,400])
      grid(doubledArray)

      d3.select("g").selectAll("circle")
        .transition()
        .duration(1000)
        .attr("cx", function(d) {return d.x})
        .attr("cy", function(d) {return d.y})
    }

  }

  d3.layout.grid = function() {
  var gridSize = [10,10];
  var gridColumns;
  var gridRows;
  var gridXScale = d3.scale.linear();
  var gridYScale = d3.scale.linear();

    function processGrid(data) {

      var rows = Math.ceil(Math.sqrt(data.length));
      var columns = Math.ceil(Math.sqrt(data.length));

      gridXScale.domain([1,columns]).range([0,gridSize[0]]);
      gridYScale.domain([1,rows]).range([0,gridSize[1]]);

      var x = 0;

        for (i = 1; i <= rows; i++) {
          for (j = 1; j <= columns; j++) {
            if (data[x]) {
              data[x].x = gridXScale(j);
              data[x].y = gridYScale(i);
              x++;
            }
            else {
              break;
            }
          }
        }

      return data;
    }

    processGrid.size = function(newSize) {
      	if (!arguments.length) return gridSize;

        gridSize = newSize;
        return this;
    }

    return processGrid;
  }
</script>
  </footer>

</html>

## tweets.json
{
"tweets": [
{"user": "Al", "content": "I really love seafood.", "timestamp": " Mon Dec 23 2013 21:30 GMT-0800 (PST)", "retweets": ["Raj","Pris","Roy"], "favorites": ["Sam"]},
{"user": "Al", "content": "I take that back, this doesn't taste so good.", "timestamp": "Mon Dec 23 2013 21:55 GMT-0800 (PST)", "retweets": ["Roy"], "favorites": []},
{"user": "Al", "content": "From now on, I'm only eating cheese sandwiches.", "timestamp": "Mon Dec 23 2013 22:22 GMT-0800 (PST)", "retweets": [], "favorites": ["Roy","Sam"]},
{"user": "Roy", "content": "Great workout!", "timestamp": " Mon Dec 23 2013 7:20 GMT-0800 (PST)", "retweets": [], "favorites": []},
{"user": "Roy", "content": "Spectacular oatmeal!", "timestamp": " Mon Dec 23 2013 7:23 GMT-0800 (PST)", "retweets": [], "favorites": []},
{"user": "Roy", "content": "Amazing traffic!", "timestamp": " Mon Dec 23 2013 7:47  GMT-0800 (PST)", "retweets": [], "favorites": []},
{"user": "Roy", "content": "Just got a ticket for texting and driving!", "timestamp": " Mon Dec 23 2013 8:05 GMT-0800 (PST)", "retweets": [], "favorites": ["Sam", "Sally", "Pris"]},
{"user": "Pris", "content": "Going to have some boiled eggs.", "timestamp": " Mon Dec 23 2013 18:23 GMT-0800 (PST)", "retweets": [], "favorites": ["Sally"]},
{"user": "Pris", "content": "Maybe practice some gymnastics.", "timestamp": " Mon Dec 23 2013 19:47  GMT-0800 (PST)", "retweets": [], "favorites": ["Sally"]},
{"user": "Sam", "content": "@Roy Let's get lunch", "timestamp": " Mon Dec 23 2013 11:05 GMT-0800 (PST)", "retweets": ["Pris"], "favorites": ["Sally", "Pris"]}
]
}
	<html>
	<head>
	<title>D3 in Action Chapter 10 - Example 2</title>
	<meta charset="utf-8" />
	<script src="http://d3js.org/colorbrewer.v1.min.js" type="text/JavaScript"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
	</head>
	<style>
	svg {
	height: 500px;
	width: 500px;
	border: 1px solid gray;
	}
	</style>
	<body>
	<div id="viz">
	<svg></svg>
	</div>
	</body>
	<footer>

	<script>
	d3.json("tweets.json", function(error, data) {
	makeAGrid(data);
	})

	function makeAGrid(data) {
	var grid = d3.layout.grid();
	grid.size([400,400]);
	var griddedData = grid(data.tweets);

	d3.select("svg")
	.append("g")
	.attr("transform", "translate(50,50)")
	.selectAll("circle").data(griddedData)
	.enter()
	.append("circle")
	.attr("cx", function(d) {return d.x})
	.attr("cy", function(d) {return d.y})
	.attr("r", 20)
	.style("fill", "pink")

	var fakeTweets = []
	for (x = 0;x<12;x++) {
	var tweet = {id: x, content: "Fake Tweet #" + x};
	fakeTweets.push(tweet);
	}
	var doubledArray = data.tweets.concat(fakeTweets);

	var newGriddedData = grid(doubledArray);

	d3.select("g").selectAll("circle").data(newGriddedData)
	.enter()
	.append("circle")
	.attr("cx", 0)
	.attr("cy", 0)
	.attr("r", 20)
	.style("fill", "darkred");

	d3.select("g").selectAll("circle")
	.transition()
	.duration(1000)
	.attr("cx", function(d) {return d.x})
	.attr("cy", function(d) {return d.y})
	.each("end", resizeGrid1)

	function resizeGrid1() {
	grid.size([200,200])
	grid(doubledArray)

	d3.select("g").selectAll("circle")
	.transition()
	.duration(1000)
	.attr("cx", function(d) {return d.x})
	.attr("cy", function(d) {return d.y})
	.each("end", resizeGrid2)
	}

	function resizeGrid2() {
	grid.size([200,400])
	grid(doubledArray)

	d3.select("g").selectAll("circle")
	.transition()
	.duration(1000)
	.attr("cx", function(d) {return d.x})
	.attr("cy", function(d) {return d.y})
	}

	}

	d3.layout.grid = function() {
	var gridSize = [10,10];
	var gridColumns;
	var gridRows;
	var gridXScale = d3.scale.linear();
	var gridYScale = d3.scale.linear();

	function processGrid(data) {

	var rows = Math.ceil(Math.sqrt(data.length));
	var columns = Math.ceil(Math.sqrt(data.length));

	gridXScale.domain([1,columns]).range([0,gridSize[0]]);
	gridYScale.domain([1,rows]).range([0,gridSize[1]]);

	var x = 0;

	for (i = 1; i <= rows; i++) {
	for (j = 1; j <= columns; j++) {
	if (data[x]) {
	data[x].x = gridXScale(j);
	data[x].y = gridYScale(i);
	x++;
	}
	else {
	break;
	}
	}
	}

	return data;
	}

	processGrid.size = function(newSize) {
	if (!arguments.length) return gridSize;

	gridSize = newSize;
	return this;
	}

	return processGrid;
	}
	</script>
	</footer>

	</html>
	{
	"tweets": [
	{"user": "Al", "content": "I really love seafood.", "timestamp": " Mon Dec 23 2013 21:30 GMT-0800 (PST)", "retweets": ["Raj","Pris","Roy"], "favorites": ["Sam"]},
	{"user": "Al", "content": "I take that back, this doesn't taste so good.", "timestamp": "Mon Dec 23 2013 21:55 GMT-0800 (PST)", "retweets": ["Roy"], "favorites": []},
	{"user": "Al", "content": "From now on, I'm only eating cheese sandwiches.", "timestamp": "Mon Dec 23 2013 22:22 GMT-0800 (PST)", "retweets": [], "favorites": ["Roy","Sam"]},
	{"user": "Roy", "content": "Great workout!", "timestamp": " Mon Dec 23 2013 7:20 GMT-0800 (PST)", "retweets": [], "favorites": []},
	{"user": "Roy", "content": "Spectacular oatmeal!", "timestamp": " Mon Dec 23 2013 7:23 GMT-0800 (PST)", "retweets": [], "favorites": []},
	{"user": "Roy", "content": "Amazing traffic!", "timestamp": " Mon Dec 23 2013 7:47 GMT-0800 (PST)", "retweets": [], "favorites": []},
	{"user": "Roy", "content": "Just got a ticket for texting and driving!", "timestamp": " Mon Dec 23 2013 8:05 GMT-0800 (PST)", "retweets": [], "favorites": ["Sam", "Sally", "Pris"]},
	{"user": "Pris", "content": "Going to have some boiled eggs.", "timestamp": " Mon Dec 23 2013 18:23 GMT-0800 (PST)", "retweets": [], "favorites": ["Sally"]},
	{"user": "Pris", "content": "Maybe practice some gymnastics.", "timestamp": " Mon Dec 23 2013 19:47 GMT-0800 (PST)", "retweets": [], "favorites": ["Sally"]},
	{"user": "Sam", "content": "@Roy Let's get lunch", "timestamp": " Mon Dec 23 2013 11:05 GMT-0800 (PST)", "retweets": ["Pris"], "favorites": ["Sally", "Pris"]}
	]
	}