93 lines
No EOL
3.3 KiB
HTML
93 lines
No EOL
3.3 KiB
HTML
<script>
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var events = '<%= h @events.count%>';
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var data =
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<
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%= raw
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@
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events_time.to_json % >;
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var valueLabelWidth = 10; // space reserved for value labels (right)
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var barHeight = 24; // height of one bar
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var barLabelWidth = 100; // space reserved for bar labels
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var barLabelPadding = 8; // padding between bar and bar labels (left)
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var gridLabelHeight = 18; // space reserved for gridline labels
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var gridChartOffset = 3; // space between start of grid and first bar
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var maxBarWidth = 420; // width of the bar with the max value
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var color = d3.scale.category20();
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// accessor functions
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var barLabel = function (d) {
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return d['status'];
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};
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var barValue = function (d) {
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return d['value'] / events * 100;
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};
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var barValues = function (d) {
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return d['value'];
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};
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// scales
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var yScale = d3.scale.ordinal().domain(d3.range(0, data.length)).rangeBands([0, data.length * barHeight]);
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var y = function (d, i) {
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return yScale(i);
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};
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var yText = function (d, i) {
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return y(d, i) + yScale.rangeBand() / 2;
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};
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var yMax = d3.max(data, function (d) {
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return barValue(d) + 15;
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});
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var x = d3.scale.linear().domain([0, yMax]).range([0, maxBarWidth]);
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var width = maxBarWidth + barLabelWidth + valueLabelWidth;
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// svg container element
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var chart = d3.select('#events_time').append("svg")
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.attr('width', maxBarWidth + barLabelWidth + valueLabelWidth)
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.attr('height', gridLabelHeight + gridChartOffset + data.length * barHeight);
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// bar labels
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var labelsContainer = chart.append('g')
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.attr('transform', 'translate(' + (barLabelWidth - barLabelPadding) + ',' + (gridLabelHeight + gridChartOffset) + ')');
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labelsContainer.selectAll('text').data(data).enter().append('text')
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.attr('y', yText)
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.attr('stroke', 'none')
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.attr('fill', 'black')
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.attr("dy", ".35em") // vertical-align: middle
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.attr('text-anchor', 'end')
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.text(barLabel);
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// bars
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var barsContainer = chart.append('g')
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.attr('transform', 'translate(' + barLabelWidth + ',' + (gridLabelHeight + gridChartOffset) + ')');
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barsContainer.selectAll("rect").data(data).enter().append("rect")
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.attr('y', y)
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.attr('height', yScale.rangeBand())
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.attr('width', function (d) {
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return x(barValue(d));
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})
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.attr('stroke', 'white')
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.attr('fill', function (d) {
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return color(barValue(d));
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});
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// bar value labels
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barsContainer.selectAll("text").data(data).enter().append("text")
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.attr("x", 5)
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.attr("y", yText)
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.attr("dx", 3) // padding-left
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.attr("dy", ".35em") // vertical-align: middle
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.attr("text-anchor", "start") // text-align: right
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.attr("fill", "black")
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.attr("stroke", "none")
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.text(function (d) {
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return d3.round(barValues(d), 2) + " (" + d3.round(barValue(d), 0) + "%)";
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});
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// start line
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barsContainer.append("line")
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.attr("y1", -gridChartOffset)
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.attr("y2", yScale.rangeExtent()[1] + gridChartOffset)
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.style("stroke", "#000");
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</script> |