Thanaporn-sk/.block

## .block
license: none

## README.md

      
    Raw
  

              README.md
            
          
    Built with blockbuilder.org
forked from twlynch's block: Line chart with d3.brush

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

.zoom {
  cursor: move;
  fill: none;
  pointer-events: all;
}

.line {
    fill: none;
    stroke: steelblue;
    stroke-width: 1.5px;
	clip-path: url(#clip);
}

</style>
<svg width="720" height="420"></svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="http://d3js.org/queue.v1.min.js"></script>

<script>

queue()
    .defer(d3.csv, "sp500.csv", type)
    .await(ready);

var parseDate = d3.timeParse("%b %Y");

function ready(error, data) {

  if (error) throw error;

  var svg = d3.select("svg"),
    margin = {top: 30, right: 20, bottom: 150, left: 40},
    margin2 = {top: 320, right: 20, bottom: 30, left: 40},
    width = +svg.attr("width") - margin.left - margin.right,
    height = +svg.attr("height") - margin.top - margin.bottom,
    height2 = +svg.attr("height") - margin2.top - margin2.bottom;

	var x = d3.scaleTime().range([0, width]),
		x2 = d3.scaleTime().range([0, width]),
		y = d3.scaleLinear().range([height, 0]),
		y2 = d3.scaleLinear().range([height2, 0]);

	var xAxis = d3.axisBottom(x),
		xAxis2 = d3.axisBottom(x2),
		yAxis = d3.axisLeft(y);

	var line = d3.line()
		.x(function(d) { return x(d.date); })
		.y(function(d) { return y(d.price); });

	var line2 = d3.line()
		.x(function(d) { return x2(d.date); })
		.y(function(d) { return y2(d.price); });

	svg.append("defs").append("clipPath")
		.attr("id", "clip")
	  .append("rect")
		.attr("width", width)
		.attr("height", height);

	var focus = svg.append("g")
		.attr("class", "focus")
		.attr("transform", "translate(" + margin.left + "," + margin.top + ")");

	var context = svg.append("g")
		<!-- .attr("class", "context") -->
		.attr("transform", "translate(" + margin2.left + "," + margin2.top + ")");

	var leftHandle = 0,
		rightHandle = 1140

	var currentExtent = [0,0]

  var brush = d3.brushX()
    .extent([[leftHandle, 0], [rightHandle, height2]])
	.on("brush start", updateCurrentExtent)
    .on("brush end", brushed);

  var zoom = d3.zoom()
    .scaleExtent([1, Infinity])
    .translateExtent([[0, 0], [width, height]])
    .extent([[0, 0], [width, height]])
    .on("zoom", zoomed);

  x.domain(d3.extent(data, function(d) { return d.date; }));
  y.domain([0, d3.max(data, function(d) { return d.price; })]);
  x2.domain(x.domain());
  y2.domain(y.domain());

  focus.append("path")
      .datum(data)
      .attr("class", "line")
      .attr("d", line);

  focus.append("g")
      .attr("class", "axis axis--x")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis);

  focus.append("g")
      .attr("class", "axis axis--y")
      .call(yAxis);

  context.append("path")
      .datum(data)
      .attr("class", "line")
      .attr("d", line2);

  context.append("g")
      .attr("class", "axis axis--x")
      .attr("transform", "translate(0," + height2 + ")")
      .call(xAxis2);

  context.append("g")
      .attr("class", "brush")
	  .on("click", brushed)
	  .call(brush)
	  .call(brush.move, [new Date(2000,0,1),new Date(2001,0,1)].map(x));

  svg.append("rect")
      .attr("class", "zoom")
      .attr("width", width)
      .attr("height", height)
      .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
      //.call(zoom);

	function updateCurrentExtent() {
	currentExtent = d3.brushSelection(this);
	}


	function brushed() {
	  if (d3.event.sourceEvent && d3.event.sourceEvent.type === "zoom") return; // ignore brush-by-zoom
	  var s = d3.event.selection;

	  //console.log(x(new Date(2001,0,1))); // 1 year in terms of x

	  var p = currentExtent,
		  xYear = x2(new Date(2001,0,1)),
		  left,
		  right;

	  if (d3.event.selection && s[1] - s[0] >= xYear) {
		if (p[0] == s[0] && p[1] < s[1]) { // case where right handle is extended
		  if (s[1] >= width) {
		    left = width - xYear
			right = width
			s = [left, right];
		  }
		  else {
		    left = s[1] - xYear/2
			right = s[1] + xYear/2
			s = [left, right];
		  }
		}
		else if (p[1] == s[1] && p[0] > s[0]) { // case where left handle is extended
		  if (s[0] <= 0) {
		    s = [0, xYear];
		  }
		  else {
		    s = [s[0] - xYear/2, s[0] + xYear/2]
		  }
		}
	  }

	  if (!d3.event.selection){ // if no selection took place and the brush was just clicked
		var mouse = d3.mouse(this)[0];
		if (mouse < xYear/2) {
		  s = [0,xYear];
		} else if (mouse + xYear/2 > width) {
		  s = [width-xYear, width];
		}
		else {
		s = [d3.mouse(this)[0]-xYear/2, d3.mouse(this)[0]+xYear/2];
		}
	  }

	  x.domain(s.map(x2.invert, x2));
	  focus.select(".line").attr("d", line);
	  focus.select(".axis--x").call(xAxis);
	  svg.select(".zoom").call(zoom.transform, d3.zoomIdentity
												 .scale(width / (s[1] - s[0]))
												 .translate(-s[0], 0));
	}

	function zoomed() {
	  if (d3.event.sourceEvent && d3.event.sourceEvent.type === "brush") return; // ignore zoom-by-brush
	  var t = d3.event.transform;
	  x.domain(t.rescaleX(x2).domain());
	  focus.select(".line").attr("d", line);
	  focus.select(".axis--x").call(xAxis);
	  context.select(".brush").call(brush.move, x.range().map(t.invertX, t));
	}

}

function type(d) {
  d.date = parseDate(d.date);
  d.price = +d.price;
  return d;
}

</script>

## sp500.csv

          
            date
            price

            
              Jan 2000
              1394.46

            
              Feb 2000
              1366.42

            
              Mar 2000
              1498.58

            
              Apr 2000
              1452.43

            
              May 2000
              1420.6

            
              Jun 2000
              1454.6

            
              Jul 2000
              1430.83

            
              Aug 2000
              1517.68

            
              Sep 2000
              1436.51

            
              Oct 2000
              1429.4

            
              Nov 2000
              1314.95

            
              Dec 2000
              1320.28

            
              Jan 2001
              1366.01

            
              Feb 2001
              1239.94

            
              Mar 2001
              1160.33

            
              Apr 2001
              1249.46

            
              May 2001
              1255.82

            
              Jun 2001
              1224.38

            
              Jul 2001
              1211.23

            
              Aug 2001
              1133.58

            
              Sep 2001
              1040.94

            
              Oct 2001
              1059.78

            
              Nov 2001
              1139.45

            
              Dec 2001
              1148.08

            
              Jan 2002
              1130.2

            
              Feb 2002
              1106.73

            
              Mar 2002
              1147.39

            
              Apr 2002
              1076.92

            
              May 2002
              1067.14

            
              Jun 2002
              989.82

            
              Jul 2002
              911.62

            
              Aug 2002
              916.07

            
              Sep 2002
              815.28

            
              Oct 2002
              885.76

            
              Nov 2002
              936.31

            
              Dec 2002
              879.82

            
              Jan 2003
              855.7

            
              Feb 2003
              841.15

            
              Mar 2003
              848.18

            
              Apr 2003
              916.92

            
              May 2003
              963.59

            
              Jun 2003
              974.5

            
              Jul 2003
              990.31

            
              Aug 2003
              1008.01

            
              Sep 2003
              995.97

            
              Oct 2003
              1050.71

            
              Nov 2003
              1058.2

            
              Dec 2003
              1111.92

            
              Jan 2004
              1131.13

            
              Feb 2004
              1144.94

            
              Mar 2004
              1126.21

            
              Apr 2004
              1107.3

            
              May 2004
              1120.68

            
              Jun 2004
              1140.84

            
              Jul 2004
              1101.72

            
              Aug 2004
              1104.24

            
              Sep 2004
              1114.58

            
              Oct 2004
              1130.2

            
              Nov 2004
              1173.82

            
              Dec 2004
              1211.92

            
              Jan 2005
              1181.27

            
              Feb 2005
              1203.6

            
              Mar 2005
              1180.59

            
              Apr 2005
              1156.85

            
              May 2005
              1191.5

            
              Jun 2005
              1191.33

            
              Jul 2005
              1234.18

            
              Aug 2005
              1220.33

            
              Sep 2005
              1228.81

            
              Oct 2005
              1207.01

            
              Nov 2005
              1249.48

            
              Dec 2005
              1248.29

            
              Jan 2006
              1280.08

            
              Feb 2006
              1280.66

            
              Mar 2006
              1294.87

            
              Apr 2006
              1310.61

            
              May 2006
              1270.09

            
              Jun 2006
              1270.2

            
              Jul 2006
              1276.66

            
              Aug 2006
              1303.82

            
              Sep 2006
              1335.85

            
              Oct 2006
              1377.94

            
              Nov 2006
              1400.63

            
              Dec 2006
              1418.3

            
              Jan 2007
              1438.24

            
              Feb 2007
              1406.82

            
              Mar 2007
              1420.86

            
              Apr 2007
              1482.37

            
              May 2007
              1530.62

            
              Jun 2007
              1503.35

            
              Jul 2007
              1455.27

            
              Aug 2007
              1473.99

            
              Sep 2007
              1526.75

            
              Oct 2007
              1549.38

            
              Nov 2007
              1481.14

            
              Dec 2007
              1468.36

            
              Jan 2008
              1378.55

            
              Feb 2008
              1330.63

            
              Mar 2008
              1322.7

            
              Apr 2008
              1385.59

            
              May 2008
              1400.38

            
              Jun 2008
              1280

            
              Jul 2008
              1267.38

            
              Aug 2008
              1282.83

            
              Sep 2008
              1166.36

            
              Oct 2008
              968.75

            
              Nov 2008
              896.24

            
              Dec 2008
              903.25

            
              Jan 2009
              825.88

            
              Feb 2009
              735.09

            
              Mar 2009
              797.87

            
              Apr 2009
              872.81

            
              May 2009
              919.14

            
              Jun 2009
              919.32

            
              Jul 2009
              987.48

            
              Aug 2009
              1020.62

            
              Sep 2009
              1057.08

            
              Oct 2009
              1036.19

            
              Nov 2009
              1095.63

            
              Dec 2009
              1115.1

            
              Jan 2010
              1073.87

            
              Feb 2010
              1104.49

            
              Mar 2010
              1140.45
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	.zoom {
	cursor: move;
	fill: none;
	pointer-events: all;
	}

	.line {
	fill: none;
	stroke: steelblue;
	stroke-width: 1.5px;
	clip-path: url(#clip);
	}

	</style>
	<svg width="720" height="420"></svg>
	<script src="https://d3js.org/d3.v4.min.js"></script>
	<script src="http://d3js.org/queue.v1.min.js"></script>

	<script>

	queue()
	.defer(d3.csv, "sp500.csv", type)
	.await(ready);

	var parseDate = d3.timeParse("%b %Y");

	function ready(error, data) {

	if (error) throw error;

	var svg = d3.select("svg"),
	margin = {top: 30, right: 20, bottom: 150, left: 40},
	margin2 = {top: 320, right: 20, bottom: 30, left: 40},
	width = +svg.attr("width") - margin.left - margin.right,
	height = +svg.attr("height") - margin.top - margin.bottom,
	height2 = +svg.attr("height") - margin2.top - margin2.bottom;

	var x = d3.scaleTime().range([0, width]),
	x2 = d3.scaleTime().range([0, width]),
	y = d3.scaleLinear().range([height, 0]),
	y2 = d3.scaleLinear().range([height2, 0]);

	var xAxis = d3.axisBottom(x),
	xAxis2 = d3.axisBottom(x2),
	yAxis = d3.axisLeft(y);

	var line = d3.line()
	.x(function(d) { return x(d.date); })
	.y(function(d) { return y(d.price); });

	var line2 = d3.line()
	.x(function(d) { return x2(d.date); })
	.y(function(d) { return y2(d.price); });

	svg.append("defs").append("clipPath")
	.attr("id", "clip")
	.append("rect")
	.attr("width", width)
	.attr("height", height);

	var focus = svg.append("g")
	.attr("class", "focus")
	.attr("transform", "translate(" + margin.left + "," + margin.top + ")");

	var context = svg.append("g")
	<!-- .attr("class", "context") -->
	.attr("transform", "translate(" + margin2.left + "," + margin2.top + ")");

	var leftHandle = 0,
	rightHandle = 1140

	var currentExtent = [0,0]

	var brush = d3.brushX()
	.extent([[leftHandle, 0], [rightHandle, height2]])
	.on("brush start", updateCurrentExtent)
	.on("brush end", brushed);

	var zoom = d3.zoom()
	.scaleExtent([1, Infinity])
	.translateExtent([[0, 0], [width, height]])
	.extent([[0, 0], [width, height]])
	.on("zoom", zoomed);

	x.domain(d3.extent(data, function(d) { return d.date; }));
	y.domain([0, d3.max(data, function(d) { return d.price; })]);
	x2.domain(x.domain());
	y2.domain(y.domain());

	focus.append("path")
	.datum(data)
	.attr("class", "line")
	.attr("d", line);

	focus.append("g")
	.attr("class", "axis axis--x")
	.attr("transform", "translate(0," + height + ")")
	.call(xAxis);

	focus.append("g")
	.attr("class", "axis axis--y")
	.call(yAxis);

	context.append("path")
	.datum(data)
	.attr("class", "line")
	.attr("d", line2);

	context.append("g")
	.attr("class", "axis axis--x")
	.attr("transform", "translate(0," + height2 + ")")
	.call(xAxis2);

	context.append("g")
	.attr("class", "brush")
	.on("click", brushed)
	.call(brush)
	.call(brush.move, [new Date(2000,0,1),new Date(2001,0,1)].map(x));

	svg.append("rect")
	.attr("class", "zoom")
	.attr("width", width)
	.attr("height", height)
	.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
	//.call(zoom);

	function updateCurrentExtent() {
	currentExtent = d3.brushSelection(this);
	}


	function brushed() {
	if (d3.event.sourceEvent && d3.event.sourceEvent.type === "zoom") return; // ignore brush-by-zoom
	var s = d3.event.selection;

	//console.log(x(new Date(2001,0,1))); // 1 year in terms of x

	var p = currentExtent,
	xYear = x2(new Date(2001,0,1)),
	left,
	right;

	if (d3.event.selection && s[1] - s[0] >= xYear) {
	if (p[0] == s[0] && p[1] < s[1]) { // case where right handle is extended
	if (s[1] >= width) {
	left = width - xYear
	right = width
	s = [left, right];
	}
	else {
	left = s[1] - xYear/2
	right = s[1] + xYear/2
	s = [left, right];
	}
	}
	else if (p[1] == s[1] && p[0] > s[0]) { // case where left handle is extended
	if (s[0] <= 0) {
	s = [0, xYear];
	}
	else {
	s = [s[0] - xYear/2, s[0] + xYear/2]
	}
	}
	}

	if (!d3.event.selection){ // if no selection took place and the brush was just clicked
	var mouse = d3.mouse(this)[0];
	if (mouse < xYear/2) {
	s = [0,xYear];
	} else if (mouse + xYear/2 > width) {
	s = [width-xYear, width];
	}
	else {
	s = [d3.mouse(this)[0]-xYear/2, d3.mouse(this)[0]+xYear/2];
	}
	}

	x.domain(s.map(x2.invert, x2));
	focus.select(".line").attr("d", line);
	focus.select(".axis--x").call(xAxis);
	svg.select(".zoom").call(zoom.transform, d3.zoomIdentity
	.scale(width / (s[1] - s[0]))
	.translate(-s[0], 0));
	}

	function zoomed() {
	if (d3.event.sourceEvent && d3.event.sourceEvent.type === "brush") return; // ignore zoom-by-brush
	var t = d3.event.transform;
	x.domain(t.rescaleX(x2).domain());
	focus.select(".line").attr("d", line);
	focus.select(".axis--x").call(xAxis);
	context.select(".brush").call(brush.move, x.range().map(t.invertX, t));
	}

	}

	function type(d) {
	d.date = parseDate(d.date);
	d.price = +d.price;
	return d;
	}

	</script>
	date	price
	Jan 2000	1394.46
	Feb 2000	1366.42
	Mar 2000	1498.58
	Apr 2000	1452.43
	May 2000	1420.6
	Jun 2000	1454.6
	Jul 2000	1430.83
	Aug 2000	1517.68
	Sep 2000	1436.51
	Oct 2000	1429.4
	Nov 2000	1314.95
	Dec 2000	1320.28
	Jan 2001	1366.01
	Feb 2001	1239.94
	Mar 2001	1160.33
	Apr 2001	1249.46
	May 2001	1255.82
	Jun 2001	1224.38
	Jul 2001	1211.23
	Aug 2001	1133.58
	Sep 2001	1040.94
	Oct 2001	1059.78
	Nov 2001	1139.45
	Dec 2001	1148.08
	Jan 2002	1130.2
	Feb 2002	1106.73
	Mar 2002	1147.39
	Apr 2002	1076.92
	May 2002	1067.14
	Jun 2002	989.82
	Jul 2002	911.62
	Aug 2002	916.07
	Sep 2002	815.28
	Oct 2002	885.76
	Nov 2002	936.31
	Dec 2002	879.82
	Jan 2003	855.7
	Feb 2003	841.15
	Mar 2003	848.18
	Apr 2003	916.92
	May 2003	963.59
	Jun 2003	974.5
	Jul 2003	990.31
	Aug 2003	1008.01
	Sep 2003	995.97
	Oct 2003	1050.71
	Nov 2003	1058.2
	Dec 2003	1111.92
	Jan 2004	1131.13
	Feb 2004	1144.94
	Mar 2004	1126.21
	Apr 2004	1107.3
	May 2004	1120.68
	Jun 2004	1140.84
	Jul 2004	1101.72
	Aug 2004	1104.24
	Sep 2004	1114.58
	Oct 2004	1130.2
	Nov 2004	1173.82
	Dec 2004	1211.92
	Jan 2005	1181.27
	Feb 2005	1203.6
	Mar 2005	1180.59
	Apr 2005	1156.85
	May 2005	1191.5
	Jun 2005	1191.33
	Jul 2005	1234.18
	Aug 2005	1220.33
	Sep 2005	1228.81
	Oct 2005	1207.01
	Nov 2005	1249.48
	Dec 2005	1248.29
	Jan 2006	1280.08
	Feb 2006	1280.66
	Mar 2006	1294.87
	Apr 2006	1310.61
	May 2006	1270.09
	Jun 2006	1270.2
	Jul 2006	1276.66
	Aug 2006	1303.82
	Sep 2006	1335.85
	Oct 2006	1377.94
	Nov 2006	1400.63
	Dec 2006	1418.3
	Jan 2007	1438.24
	Feb 2007	1406.82
	Mar 2007	1420.86
	Apr 2007	1482.37
	May 2007	1530.62
	Jun 2007	1503.35
	Jul 2007	1455.27
	Aug 2007	1473.99
	Sep 2007	1526.75
	Oct 2007	1549.38
	Nov 2007	1481.14
	Dec 2007	1468.36
	Jan 2008	1378.55
	Feb 2008	1330.63
	Mar 2008	1322.7
	Apr 2008	1385.59
	May 2008	1400.38
	Jun 2008	1280
	Jul 2008	1267.38
	Aug 2008	1282.83
	Sep 2008	1166.36
	Oct 2008	968.75
	Nov 2008	896.24
	Dec 2008	903.25
	Jan 2009	825.88
	Feb 2009	735.09
	Mar 2009	797.87
	Apr 2009	872.81
	May 2009	919.14
	Jun 2009	919.32
	Jul 2009	987.48
	Aug 2009	1020.62
	Sep 2009	1057.08
	Oct 2009	1036.19
	Nov 2009	1095.63
	Dec 2009	1115.1
	Jan 2010	1073.87
	Feb 2010	1104.49
	Mar 2010	1140.45