hironow/README.md

## README.md

      
    Raw
  

              README.md
            
          
    Enter, exit and update by datasets. Using as a component (Angular, React, ...).
forked from hironow's block: D3 linepoints chart by datasets

  
## index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <title>Title</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.10.1/lodash.min.js"></script>
    <link rel="stylesheet" type="text/css" href="main.css">
  </head>
  <body>
    <div id="container"></div>
    <script src="main.js"></script>
  </body>
</html>

## main.css
#container {
  background-color: #EEE;
}

.data-tooltip {
  position: absolute;
  color: #fff;
  background-color: #333;
}

.data-tooltip-arrow {
  width: 0;
  height: 0;
  border-right: 5px solid transparent;
  border-left: 5px solid transparent;
  border-top: 10px solid #000;
  position: absolute;
  bottom: -10px;
}

.axis path,
.axis line {
  fill: none;
  stroke: #333;
  shape-rendering: crispEdges;
}

.axis text {
  font-family: sans-serif;
  font-size: 11px;
}

path.line {
  fill: none;
  stroke: #333;
  stroke-width: 2px;
}

text.label {
  fill: #333;
  stroke: none;
}

## main.js
var newDatasets = [
    {
        meta: {
            id: 1,
            name: 'A'
        },
        data: [
            {x: 10, y: 10},
            {x: 20, y: 20},
            {x: 30, y: 30},
            {x: 40, y: 40},
            {x: 50, y: 50}
        ]
    },
    {
        meta: {
            id: 3,
            name: 'C'
        },
        data: [
            {x: 100, y: 10},
            {x: 200, y: 20},
            {x: 300, y: 30},
            {x: 400, y: 40},
            {x: 500, y: 50}
        ]
    }
];

var firstDatasets = [
    {
        meta: {
            id: 1,
            name: 'A'
        },
        data: [
            {x: 10, y: 10},
            {x: 20, y: 20},
            {x: 30, y: 30},
            {x: 40, y: 40},
            {x: 50, y: 50}
        ]
    },
    {
        meta: {
            id: 2,
            name: 'B'
        },
        data: [
            {x: 10, y: 1},
            {x: 20, y: 2},
            {x: 30, y: 3},
            {x: 40, y: 4},
            {x: 50, y: 5}
        ]
    }
];

var __width = 500;
var __height = 500;
var _margin = {top: 50, right: 50, bottom: 50, left: 50};


var getId = function(dataset) { return dataset.meta.id; };
var getLabel = function(dataset) { return dataset.meta.name; };
var getData = function(dataset) { return dataset.data; };
var getLastData = function(dataset) { return dataset.data[dataset.data.length - 1]; };

var getX = function(data) { return data.x; };
var getY = function(data) { return data.y; };

var _width = __width - _margin.left - _margin.right;
var _height = __height - _margin.top - _margin.bottom;

var xScale = d3.scale.linear().range([0, _width]);
var yScale = d3.scale.linear().range([_height, 0]);

var line = d3.svg.line().interpolate('linear')
    .x(function(data) { return xScale(getX(data)); })
    .y(function(data) { return yScale(getY(data)); })

var dataTooltip = d3.select('#container')
    .append('div')
    .classed('data-tooltip', true);

var svg = d3.select('#container')
    .append('svg')
    .attr('width', __width)
    .attr('height', __height);

var g = svg.append('g')
    .attr('transform',
          'translate(' + _margin.left + ',' + _margin.top + ')');


render(firstDatasets);


function render(datasets) {
    var xs = _.chain(datasets).map(getData)
        .flatten().map(getX).value();
    var ys = _.chain(datasets).map(getData)
        .flatten().map(getY).value();

    xScale.domain(d3.extent(xs));
    yScale.domain(d3.extent(ys));

    var xAxis = d3.svg.axis().scale(xScale).orient('bottom');
    var yAxis = d3.svg.axis().scale(yScale).orient('left');

    if (g.selectAll('g.x.axis').empty()) {
        g.append('g')
            .classed('x axis', true)
            .attr('transform', 'translate(0,' + _height + ')')
            .call(xAxis);
    } else {
        g.selectAll('g.x.axis')
            .transition().duration(1000)
            .call(xAxis);
    }

    if (g.selectAll('g.y.axis').empty()) {
        g.append('g')
            .classed('y axis', true)
            .call(yAxis);
    } else {
        g.selectAll('g.y.axis')
            .transition().duration(1000)
            .call(yAxis);
    }


    // bind dataset
    var datasetContainers = g.selectAll('g.dataset')
        .data(datasets, getId);

    // enter
    datasetContainers
        .enter().append('g')
            .classed('dataset', true)
            .attr('id', function(dataset) { return getId(dataset); })
        .on('mouseover', function(dataset) {
            var self = this;

            var gs = d3.selectAll('g.dataset');
            gs.filter(function() { return self.id !== this.id; })
                .transition().duration(1000)
                .style('opacity', 0.2);
        })
        .on('mouseout', function(dataset) {
            var self = this;

            var gs = d3.selectAll('g.dataset');
            gs.filter(function() { return self.id !== this.is; })
                .transition().duration(1000)
                .style('opacity', 1.0);
        })
        .style('opacity', 0.0)
        .transition().duration(1000)
        .style('opacity', 1.0);

    datasetContainers.selectAll('path.line')
        .data(function(dataset) { return [dataset]; })
        .enter().append('path')
            .classed('line', true)
            .attr('d', function(dataset) { return line(getData(dataset)); });

    datasetContainers.selectAll('circle.point')
        .data(function(dataset) { return getData(dataset); })
        .enter().append('circle')
            .classed('point', true)
            .attr('cx', function(data) { return xScale(getX(data)); })
            .attr('cy', function(data) { return yScale(getY(data)); })
            .attr('r', 4)
        .on('mouseover', function(data) {
            d3.select(this)
                .transition().duration(1000)
                .attr('r', 5)
                .style('stroke-width', '3px');

            var dataTooltipContainer = dataTooltip.data([data]);
            dataTooltipContainer.append('div')
                                .classed('x', true)
                                .html(getX);
            dataTooltipContainer.append('div')
                                .classed('y', true)
                                .html(getY);

            dataTooltipContainer.append('div')
                                .classed('data-tooltip-arrow', true);

            dataTooltip
                .transition().duration(1000)
                .style('left', (+d3.select(this).attr('cx') + _margin.left) + 'px')
                .style('top', (+d3.select(this).attr('cy') + _margin.top) + 'px')
                .style('opacity', 1)
                .style('display', 'block');
        })
        .on('mouseout', function(data) {
            d3.select(this)
                .transition().duration(1000)
                .attr('r', 4)
                .style('stroke-width', '2px');

            // hide tooltip
            dataTooltip
                .transition().duration(1000)
                .style('opacity', 0)
                .style('display', 'none');
            dataTooltip.selectAll('.x').remove();
            dataTooltip.selectAll('.y').remove();
            dataTooltip.selectAll('.data-tooltip-arrow').remove();
        });

    datasetContainers.selectAll('text.label')
        .data(function(dataset) { return [dataset]; })
        .enter().append('text')
            .classed('label', true)
            .attr('x', function(dataset) { return xScale(getX(getLastData(dataset))); })
            .attr('y', function(dataset) { return yScale(getY(getLastData(dataset))); })
            .text(getLabel);

    // exit
    datasetContainers
        .exit()
            .transition().duration(1000)
            .style('opacity', 0.0)
            .remove();

    // update
    datasetContainers
        .selectAll('path.line')
        .transition().duration(1000)
        .attr('d', function(dataset) { return line(getData(dataset)); });

    datasetContainers
        .selectAll('circle.point')
        .transition().duration(1000)
        .attr('cx', function(data) { return xScale(getX(data)); })
        .attr('cy', function(data) { return yScale(getY(data)); });

    datasetContainers
        .selectAll('text.label')
        .transition().duration(1000)
        .attr('x', function(dataset) { return xScale(getX(getLastData(dataset))); })
        .attr('y', function(dataset) { return yScale(getY(getLastData(dataset))); });
}
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8" />
	<title>Title</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.10.1/lodash.min.js"></script>
	<link rel="stylesheet" type="text/css" href="main.css">
	</head>
	<body>
	<div id="container"></div>
	<script src="main.js"></script>
	</body>
	</html>
	#container {
	background-color: #EEE;
	}

	.data-tooltip {
	position: absolute;
	color: #fff;
	background-color: #333;
	}

	.data-tooltip-arrow {
	width: 0;
	height: 0;
	border-right: 5px solid transparent;
	border-left: 5px solid transparent;
	border-top: 10px solid #000;
	position: absolute;
	bottom: -10px;
	}

	.axis path,
	.axis line {
	fill: none;
	stroke: #333;
	shape-rendering: crispEdges;
	}

	.axis text {
	font-family: sans-serif;
	font-size: 11px;
	}

	path.line {
	fill: none;
	stroke: #333;
	stroke-width: 2px;
	}

	text.label {
	fill: #333;
	stroke: none;
	}
	var newDatasets = [
	{
	meta: {
	id: 1,
	name: 'A'
	},
	data: [
	{x: 10, y: 10},
	{x: 20, y: 20},
	{x: 30, y: 30},
	{x: 40, y: 40},
	{x: 50, y: 50}
	]
	},
	{
	meta: {
	id: 3,
	name: 'C'
	},
	data: [
	{x: 100, y: 10},
	{x: 200, y: 20},
	{x: 300, y: 30},
	{x: 400, y: 40},
	{x: 500, y: 50}
	]
	}
	];

	var firstDatasets = [
	{
	meta: {
	id: 1,
	name: 'A'
	},
	data: [
	{x: 10, y: 10},
	{x: 20, y: 20},
	{x: 30, y: 30},
	{x: 40, y: 40},
	{x: 50, y: 50}
	]
	},
	{
	meta: {
	id: 2,
	name: 'B'
	},
	data: [
	{x: 10, y: 1},
	{x: 20, y: 2},
	{x: 30, y: 3},
	{x: 40, y: 4},
	{x: 50, y: 5}
	]
	}
	];

	var __width = 500;
	var __height = 500;
	var _margin = {top: 50, right: 50, bottom: 50, left: 50};


	var getId = function(dataset) { return dataset.meta.id; };
	var getLabel = function(dataset) { return dataset.meta.name; };
	var getData = function(dataset) { return dataset.data; };
	var getLastData = function(dataset) { return dataset.data[dataset.data.length - 1]; };

	var getX = function(data) { return data.x; };
	var getY = function(data) { return data.y; };

	var _width = __width - _margin.left - _margin.right;
	var _height = __height - _margin.top - _margin.bottom;

	var xScale = d3.scale.linear().range([0, _width]);
	var yScale = d3.scale.linear().range([_height, 0]);

	var line = d3.svg.line().interpolate('linear')
	.x(function(data) { return xScale(getX(data)); })
	.y(function(data) { return yScale(getY(data)); })

	var dataTooltip = d3.select('#container')
	.append('div')
	.classed('data-tooltip', true);

	var svg = d3.select('#container')
	.append('svg')
	.attr('width', __width)
	.attr('height', __height);

	var g = svg.append('g')
	.attr('transform',
	'translate(' + _margin.left + ',' + _margin.top + ')');


	render(firstDatasets);


	function render(datasets) {
	var xs = _.chain(datasets).map(getData)
	.flatten().map(getX).value();
	var ys = _.chain(datasets).map(getData)
	.flatten().map(getY).value();

	xScale.domain(d3.extent(xs));
	yScale.domain(d3.extent(ys));

	var xAxis = d3.svg.axis().scale(xScale).orient('bottom');
	var yAxis = d3.svg.axis().scale(yScale).orient('left');

	if (g.selectAll('g.x.axis').empty()) {
	g.append('g')
	.classed('x axis', true)
	.attr('transform', 'translate(0,' + _height + ')')
	.call(xAxis);
	} else {
	g.selectAll('g.x.axis')
	.transition().duration(1000)
	.call(xAxis);
	}

	if (g.selectAll('g.y.axis').empty()) {
	g.append('g')
	.classed('y axis', true)
	.call(yAxis);
	} else {
	g.selectAll('g.y.axis')
	.transition().duration(1000)
	.call(yAxis);
	}


	// bind dataset
	var datasetContainers = g.selectAll('g.dataset')
	.data(datasets, getId);

	// enter
	datasetContainers
	.enter().append('g')
	.classed('dataset', true)
	.attr('id', function(dataset) { return getId(dataset); })
	.on('mouseover', function(dataset) {
	var self = this;

	var gs = d3.selectAll('g.dataset');
	gs.filter(function() { return self.id !== this.id; })
	.transition().duration(1000)
	.style('opacity', 0.2);
	})
	.on('mouseout', function(dataset) {
	var self = this;

	var gs = d3.selectAll('g.dataset');
	gs.filter(function() { return self.id !== this.is; })
	.transition().duration(1000)
	.style('opacity', 1.0);
	})
	.style('opacity', 0.0)
	.transition().duration(1000)
	.style('opacity', 1.0);

	datasetContainers.selectAll('path.line')
	.data(function(dataset) { return [dataset]; })
	.enter().append('path')
	.classed('line', true)
	.attr('d', function(dataset) { return line(getData(dataset)); });

	datasetContainers.selectAll('circle.point')
	.data(function(dataset) { return getData(dataset); })
	.enter().append('circle')
	.classed('point', true)
	.attr('cx', function(data) { return xScale(getX(data)); })
	.attr('cy', function(data) { return yScale(getY(data)); })
	.attr('r', 4)
	.on('mouseover', function(data) {
	d3.select(this)
	.transition().duration(1000)
	.attr('r', 5)
	.style('stroke-width', '3px');

	var dataTooltipContainer = dataTooltip.data([data]);
	dataTooltipContainer.append('div')
	.classed('x', true)
	.html(getX);
	dataTooltipContainer.append('div')
	.classed('y', true)
	.html(getY);

	dataTooltipContainer.append('div')
	.classed('data-tooltip-arrow', true);

	dataTooltip
	.transition().duration(1000)
	.style('left', (+d3.select(this).attr('cx') + _margin.left) + 'px')
	.style('top', (+d3.select(this).attr('cy') + _margin.top) + 'px')
	.style('opacity', 1)
	.style('display', 'block');
	})
	.on('mouseout', function(data) {
	d3.select(this)
	.transition().duration(1000)
	.attr('r', 4)
	.style('stroke-width', '2px');

	// hide tooltip
	dataTooltip
	.transition().duration(1000)
	.style('opacity', 0)
	.style('display', 'none');
	dataTooltip.selectAll('.x').remove();
	dataTooltip.selectAll('.y').remove();
	dataTooltip.selectAll('.data-tooltip-arrow').remove();
	});

	datasetContainers.selectAll('text.label')
	.data(function(dataset) { return [dataset]; })
	.enter().append('text')
	.classed('label', true)
	.attr('x', function(dataset) { return xScale(getX(getLastData(dataset))); })
	.attr('y', function(dataset) { return yScale(getY(getLastData(dataset))); })
	.text(getLabel);

	// exit
	datasetContainers
	.exit()
	.transition().duration(1000)
	.style('opacity', 0.0)
	.remove();

	// update
	datasetContainers
	.selectAll('path.line')
	.transition().duration(1000)
	.attr('d', function(dataset) { return line(getData(dataset)); });

	datasetContainers
	.selectAll('circle.point')
	.transition().duration(1000)
	.attr('cx', function(data) { return xScale(getX(data)); })
	.attr('cy', function(data) { return yScale(getY(data)); });

	datasetContainers
	.selectAll('text.label')
	.transition().duration(1000)
	.attr('x', function(dataset) { return xScale(getX(getLastData(dataset))); })
	.attr('y', function(dataset) { return yScale(getY(getLastData(dataset))); });
	}