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157 lines
4.0 KiB
157 lines
4.0 KiB
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title></title>
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<style>
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.axis path {
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stroke-width:1;
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fill:none;
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stroke: #333;
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shape-rendering: crispEdges;
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}
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.x.axis text {
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text-anchor: end !important;
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font-size: 10px;
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transform: rotate( -65deg );
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}
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g.dots {
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stroke: #00ffd2;
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fill: #006bff;
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}
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g.dots text {
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display:none;
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fill: red;
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stroke: red;
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text-anchor: middle;
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}
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</style>
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</head>
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<body>
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<div id="viz-wrapper"></div>
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<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
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<script type="text/javascript">
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var height = 800,
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width = 500;
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var padding = 50;
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var defaultCircleRadius = 2;
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var zoom = d3.behavior.zoom().scaleExtent([1,10]).on('zoom', zoomed);
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function zoomed(){
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viz.attr('transform', 'translate(' + d3.event.translate + ')' + 'scale(' + d3.event.scale + ')');
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}
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function dragStart(d){
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d3.event.sourceEvent.stopPropagation();
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d3.select(this).select('circle').style('fill', 'red');
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}
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function drag(d){
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var dx = d3.event.x;
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var dy = d3.event.y;
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d3.select(this).attr('transform', 'translate(' + dx + ',' + dy + ')');
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var date = xScale.invert(d3.event.x);
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d.DATE = dateParser(date);
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var temp = yScale.invert(d3.event.y);
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d.TMAX = temp.toString();
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}
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function dragEnd(d){
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}
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var drag = d3.behavior.drag()
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.on('dragstart', dragStart)
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.on('drag', drag)
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.on('dragend', dragEnd);
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var svg = d3.select('#viz-wrapper')
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.append('svg')
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.attr('height', height + padding * 2)
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.attr('width', width + padding * 2)
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.call(zoom);
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var viz = svg.append('g')
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.attr('id', 'viz')
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.attr('transform', 'translate(' + padding + ', ' + padding + ')');
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var yScale = d3.scale.linear();
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var xScale = d3.time.scale();
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var rScale = d3.scale.linear();
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yScale.range([height,0]);
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xScale.range([0, width]);
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rScale.range([5,50]);
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var dateParser = d3.time.format("%Y%m%d");
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var solveForR = function(TMAX){
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var area = Math.abs(TMAX);
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var r = Math.sqrt(area, Math.PI);
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return r;
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}
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var xAxis = d3.svg.axis();
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xAxis.scale(xScale);
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xAxis.orient('bottom');
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xAxis.ticks(8);
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var yAxis = d3.svg.axis();
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yAxis.scale(yScale);
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yAxis.orient('left');
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yAxis.ticks(20);
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d3.csv('data/climate.csv', function(error, data){
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var yDomain = d3.extent(data, function(element){
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return parseInt(element.TMAX) * 1.1;
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});
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var xMin = d3.min(data, function(element){
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var time = dateParser.parse(element.DATE);
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time.setMonth(time.getMonth() - 1);
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return time
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});
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var xMax = d3.max(data, function(element){
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var time = dateParser.parse(element.DATE);
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time.setMonth(time.getMonth() + 1);
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return time
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});
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var xDomain = [xMin, xMax];
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yScale.domain(yDomain);
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xScale.domain(xDomain);
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var rDomain = d3.extent(data, function(element){
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return solveForR(parseInt(element.TMAX));
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});
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rScale.domain(rDomain);
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viz.append('g').attr('class', 'x axis').attr('transform', 'translate(0,'+height+')').call(xAxis);
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viz.append('g').attr('class', 'y axis').call(yAxis);
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var dotsGroup = viz.selectAll('g.dots').data(data).enter().append('g').attr('class', 'dots');
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dotsGroup.attr('transform', function(d){
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var x = xScale(dateParser.parse(d.DATE));
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var y = yScale(d.TMAX);
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return 'translate(' + x + ',' + y + ')';
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});
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dotsGroup.append('circle').attr('r', defaultCircleRadius);
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dotsGroup.append('text').text(function(d){
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return d.TMAX;
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});
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dotsGroup.on("mouseenter", function(d, i){
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var dot = d3.select(this);
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var radius = solveForR(parseInt(d.TMAX));
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dot.select('text').style('display', 'block');
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dot.select('circle').attr('r', rScale(radius));
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});
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dotsGroup.on("mouseleave", function(d, i){
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d3.selectAll('.dots circle').attr('r', defaultCircleRadius);
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d3.selectAll('.dots text').style('display', 'none');
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});
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dotsGroup.call(drag);
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});
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</script>
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</body>
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</html>
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