m-entrup · February 10, 2016 12:14
diff --git a/index.html b/index.html
 <html>
 <meta name="description" content="D3byEX 8.7" />
 <meta charset="utf-8">
 <style>
 </style>
 <body>
    <script src="http://d3js.org/d3.v3.min.js"></script>
    <script>
        var width = 960, height = 600;

        var margins = { top: 10, left: 50, right: 50, bottom: 50, between: 50 };

        var bottomGraphHeight = 50;
        var topGraphHeight = height - (margins.top + margins.bottom + margins.between + bottomGraphHeight);
        var graphWidths = width - margins.left - margins.right;

        var svg = d3.select('body')
              .append('svg')
              .attr('width', width)
              .attr('height', height)
              .style('font', '10px sans-serif');

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

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

        var context = svg.append('g')
            .attr('class', 'context')
            .attr('transform', 'translate(' + margins.left + ',' +
                    (margins.top + topGraphHeight + margins.between) + ')');

        var xScaleTop = d3.time.scale().range([0, graphWidths]),
            xScaleBottom = d3.time.scale().range([0, graphWidths]),
            yScaleTop = d3.scale.linear().range([topGraphHeight, 0]),
            yScaleBottom = d3.scale.linear().range([bottomGraphHeight, 0]);

        var xAxisTop = d3.svg.axis().scale(xScaleTop).orient('bottom'),
            xAxisBottom = d3.svg.axis().scale(xScaleBottom).orient('bottom');
        var yAxisTop = d3.svg.axis().scale(yScaleTop).orient('left');

        var lineTop = d3.svg.line()
            .x(function (d) { return xScaleTop(d.date); })
            .y(function (d) { return yScaleTop(d.close); });

        var lineBottom = d3.svg.line()
            .x(function (d) { return xScaleBottom(d.date); })
            .y(function (d) { return yScaleBottom(d.close); });

        var brush = d3.svg.brush()
            .x(xScaleBottom)
            .on('brush', function brushed() {
                xScaleTop.domain(brush.empty() ? xScaleBottom.domain() : brush.extent());
                focus.select('.x.axis').call(xAxisTop);
                focus.select("#lineTop").attr("d", lineTop);
            });


        d3.tsv('https://gist.githubusercontent.com/d3byex/b6b753b6ef178fdb06a2/raw/0c13e82b6b59c3ba195d7f47c33e3fe00cc3f56f/aapl.tsv', function (error, data) {
            data.forEach(function (d) {
                d.date = d3.time.format('%d-%b-%y').parse(d.date);
                d.close = +d.close;
            });

            xScaleTop.domain(d3.extent(data, function (d) { return d.date; }));
            yScaleTop.domain(d3.extent(data, function (d) { return d.close; }));
            xScaleBottom.domain(d3.extent(data, function (d) { return d.date; }));
            yScaleBottom.domain(d3.extent(data, function (d) { return d.close; }));

            var topXAxisNodes = focus.append('g')
                .attr('class', 'x axis')
                .attr('transform', 'translate(' + 0 + ',' + (margins.top + topGraphHeight) + ')')
                .call(xAxisTop);
            styleAxisNodes(topXAxisNodes, 0);

            focus.append('path')
                .datum(data)
                .attr('id', 'lineTop')
                .attr('class', 'line')
                .attr('d', lineTop);

            var topYAxisNodes = focus.append('g')
                .call(yAxisTop);
            styleAxisNodes(topYAxisNodes);

            context.append('path')
                .datum(data)
                .attr('class', 'line')
                .attr('d', lineBottom);

            var bottomXAxisNodes = context.append('g')
                .attr('transform', 'translate(0,' + bottomGraphHeight + ')')
                .call(xAxisBottom);
            styleAxisNodes(bottomXAxisNodes, 0);

            context.append('g')
                .attr('class', 'x brush')
                .call(brush)
                .selectAll('rect')
                .attr('y', -6)
                .attr('height', bottomGraphHeight + 7);

            context.selectAll('.extent')
                .attr({
                    stroke: '#000',
                    'fill-opacity': 0.125,
                    'shape-rendering': 'crispEdges'
                });

            styleLines(svg);
        });

        function styleLines(svg) {
            svg.selectAll('path.line')
                .attr({
                    fill: 'none',
                    'stroke-width': 1.5,
                    stroke: 'steelblue',
                    'clip-path': 'url(#clip)'
                });
        }

        function styleAxisNodes(axisNodes, strokeWidth) {
            axisNodes.selectAll('.domain')
                .attr({
                    fill: 'none',
                    'stroke-width': strokeWidth,
                    stroke: 'black'
                });
            axisNodes.selectAll('.tick line')
                .attr({
                    fill: 'none',
                    'stroke-width': 1,
                    stroke: 'black'
                });
        }
    </script>
 </body>
 </html>
	<html>
	<meta name="description" content="D3byEX 8.7" />
	<meta charset="utf-8">
	<style>
	</style>
	<body>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	<script>
	var width = 960, height = 600;

	var margins = { top: 10, left: 50, right: 50, bottom: 50, between: 50 };

	var bottomGraphHeight = 50;
	var topGraphHeight = height - (margins.top + margins.bottom + margins.between + bottomGraphHeight);
	var graphWidths = width - margins.left - margins.right;

	var svg = d3.select('body')
	.append('svg')
	.attr('width', width)
	.attr('height', height)
	.style('font', '10px sans-serif');

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

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

	var context = svg.append('g')
	.attr('class', 'context')
	.attr('transform', 'translate(' + margins.left + ',' +
	(margins.top + topGraphHeight + margins.between) + ')');

	var xScaleTop = d3.time.scale().range([0, graphWidths]),
	xScaleBottom = d3.time.scale().range([0, graphWidths]),
	yScaleTop = d3.scale.linear().range([topGraphHeight, 0]),
	yScaleBottom = d3.scale.linear().range([bottomGraphHeight, 0]);

	var xAxisTop = d3.svg.axis().scale(xScaleTop).orient('bottom'),
	xAxisBottom = d3.svg.axis().scale(xScaleBottom).orient('bottom');
	var yAxisTop = d3.svg.axis().scale(yScaleTop).orient('left');

	var lineTop = d3.svg.line()
	.x(function (d) { return xScaleTop(d.date); })
	.y(function (d) { return yScaleTop(d.close); });

	var lineBottom = d3.svg.line()
	.x(function (d) { return xScaleBottom(d.date); })
	.y(function (d) { return yScaleBottom(d.close); });

	var brush = d3.svg.brush()
	.x(xScaleBottom)
	.on('brush', function brushed() {
	xScaleTop.domain(brush.empty() ? xScaleBottom.domain() : brush.extent());
	focus.select('.x.axis').call(xAxisTop);
	focus.select("#lineTop").attr("d", lineTop);
	});


	d3.tsv('https://gist.githubusercontent.com/d3byex/b6b753b6ef178fdb06a2/raw/0c13e82b6b59c3ba195d7f47c33e3fe00cc3f56f/aapl.tsv', function (error, data) {
	data.forEach(function (d) {
	d.date = d3.time.format('%d-%b-%y').parse(d.date);
	d.close = +d.close;
	});

	xScaleTop.domain(d3.extent(data, function (d) { return d.date; }));
	yScaleTop.domain(d3.extent(data, function (d) { return d.close; }));
	xScaleBottom.domain(d3.extent(data, function (d) { return d.date; }));
	yScaleBottom.domain(d3.extent(data, function (d) { return d.close; }));

	var topXAxisNodes = focus.append('g')
	.attr('class', 'x axis')
	.attr('transform', 'translate(' + 0 + ',' + (margins.top + topGraphHeight) + ')')
	.call(xAxisTop);
	styleAxisNodes(topXAxisNodes, 0);

	focus.append('path')
	.datum(data)
	.attr('id', 'lineTop')
	.attr('class', 'line')
	.attr('d', lineTop);

	var topYAxisNodes = focus.append('g')
	.call(yAxisTop);
	styleAxisNodes(topYAxisNodes);

	context.append('path')
	.datum(data)
	.attr('class', 'line')
	.attr('d', lineBottom);

	var bottomXAxisNodes = context.append('g')
	.attr('transform', 'translate(0,' + bottomGraphHeight + ')')
	.call(xAxisBottom);
	styleAxisNodes(bottomXAxisNodes, 0);

	context.append('g')
	.attr('class', 'x brush')
	.call(brush)
	.selectAll('rect')
	.attr('y', -6)
	.attr('height', bottomGraphHeight + 7);

	context.selectAll('.extent')
	.attr({
	stroke: '#000',
	'fill-opacity': 0.125,
	'shape-rendering': 'crispEdges'
	});

	styleLines(svg);
	});

	function styleLines(svg) {
	svg.selectAll('path.line')
	.attr({
	fill: 'none',
	'stroke-width': 1.5,
	stroke: 'steelblue',
	'clip-path': 'url(#clip)'
	});
	}

	function styleAxisNodes(axisNodes, strokeWidth) {
	axisNodes.selectAll('.domain')
	.attr({
	fill: 'none',
	'stroke-width': strokeWidth,
	stroke: 'black'
	});
	axisNodes.selectAll('.tick line')
	.attr({
	fill: 'none',
	'stroke-width': 1,
	stroke: 'black'
	});
	}
	</script>
	</body>
	</html>