lineChartSVGResize.html
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<!DOCTYPE html>
<meta charset="utf-8">
<link href="../src/nv.d3.css" rel="stylesheet" type="text/css">
<style>
body {
overflow-y:scroll;
}
text {
font: 12px sans-serif;
}
svg {
display: block;
}
</style>
<body>
<div id="chartZoom">
<a href="#" id="zoomIn">Zoom In</a> <a href="#" id="zoomOut">Zoom Out</a>
</div>
<div id="chart1" class='with-transitions'>
<svg></svg>
</div>
<script src="../lib/d3.v3.js"></script>
<script src="../nv.d3.js"></script>
<script src="../src/tooltip.js"></script>
<script src="../src/utils.js"></script>
<script src="../src/models/legend.js"></script>
<script src="../src/models/axis.js"></script>
<script src="../src/models/scatter.js"></script>
<script src="../src/models/line.js"></script>
<script src="../src/models/lineChart.js"></script>
<script>
nv.addGraph(function() {
var chart = nv.models.lineChart();
var fitScreen = false;
var width = 600;
var height = 300;
var zoom = 1;
chart.useInteractiveGuideline(true);
chart.xAxis
.tickFormat(d3.format(',r'));
chart.yAxis
.axisLabel('Voltage (v)')
.tickFormat(d3.format(',.2f'));
d3.select('#chart1 svg')
.attr('perserveAspectRatio', 'xMinYMid')
.attr('width', width)
.attr('height', height)
.datum(sinAndCos());
setChartViewBox();
resizeChart();
// These resizes both do the same thing, and require recalculating the chart
//nv.utils.windowResize(chart.update);
//nv.utils.windowResize(function() { d3.select('#chart1 svg').call(chart) });
nv.utils.windowResize(resizeChart);
d3.select('#zoomIn').on('click', zoomIn);
d3.select('#zoomOut').on('click', zoomOut);
function setChartViewBox() {
var w = width * zoom,
h = height * zoom;
chart
.width(w)
.height(h);
d3.select('#chart1 svg')
.attr('viewBox', '0 0 ' + w + ' ' + h)
.transition().duration(500)
.call(chart);
}
function zoomOut() {
zoom += .25;
setChartViewBox();
}
function zoomIn() {
if (zoom <= .5) return;
zoom -= .25;
setChartViewBox();
}
// This resize simply sets the SVG's dimensions, without a need to recall the chart code
// Resizing because of the viewbox and perserveAspectRatio settings
// This scales the interior of the chart unlike the above
function resizeChart() {
var container = d3.select('#chart1');
var svg = container.select('svg');
if (fitScreen) {
// resize based on container's width AND HEIGHT
var windowSize = nv.utils.windowSize();
svg.attr("width", windowSize.width);
svg.attr("height", windowSize.height);
} else {
// resize based on container's width
var aspect = chart.width() / chart.height();
var targetWidth = parseInt(container.style('width'));
svg.attr("width", targetWidth);
svg.attr("height", Math.round(targetWidth / aspect));
}
};
return chart;
});
function sinAndCos() {
var sin = [],
cos = [];
for (var i = 0; i < 100; i++) {
sin.push({x: i, y: Math.sin(i/10) });
cos.push({x: i, y: .5 * Math.cos(i/10)});
}
return [
{
values: sin,
key: "Sine Wave",
color: "#ff7f0e"
},
{
values: cos,
key: "Cosine Wave",
color: "#2ca02c"
}
];
}
</script>