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[vis] add tooltips to big number trendline vis #2599

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merged 1 commit into from
Apr 12, 2017
Merged

[vis] add tooltips to big number trendline vis #2599

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9 changes: 9 additions & 0 deletions superset/assets/visualizations/big_number.css
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Original file line number Diff line number Diff line change
Expand Up @@ -28,3 +28,12 @@
stroke: black;
stroke-width: 1;
}
.line-tooltip {
position: absolute;
text-align: left;
padding: 10px;
background: #ffffff;
border: 1px solid #ccc;
border-radius: 2px;
pointer-events: none;
}
42 changes: 41 additions & 1 deletion superset/assets/visualizations/big_number.js
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Original file line number Diff line number Diff line change
Expand Up @@ -55,7 +55,7 @@ function bigNumberVis(slice, payload) {
.y(function (d) {
return scaleY(d[1]);
})
.interpolate('basis');
.interpolate('cardinal');

let y = height / 2;
let g = svg.append('g');
Expand Down Expand Up @@ -146,6 +146,46 @@ function bigNumberVis(slice, payload) {
g.selectAll('text')
.style('font-size', '10px');

// Define the div for the tooltip
const tooltipEl =
d3.select('body')
.append('div')
.attr('class', 'line-tooltip')
.attr('width', 200)
.attr('height', 200)
.style('opacity', 0);

const renderTooltip = (d) => {
const date = formatDate(d[0]);
const value = f(d[1]);
return `
<div>
<span style="float: left; margin-right: 20px;"><strong>${date}</strong></span>
<span style="float: right">${value}</span>
</div>
`;
};

// Add the scatterplot and trigger the mouse events for the tooltips
svg
.selectAll('dot')
.data(data)
.enter()
.append('circle')
.attr('r', 10)
.attr('cx', d => scaleX(d[0]))
.attr('cy', d => scaleY(d[1]))
.attr('fill-opacity', '0')
.on('mouseover', (d) => {
tooltipEl.html(renderTooltip(d))
.style('left', (d3.event.pageX) + 'px')
.style('top', (d3.event.pageY) + 'px');
tooltipEl.transition().duration(200).style('opacity', 0.9);
})
.on('mouseout', () => {
tooltipEl.transition().duration(500).style('opacity', 0);
});

div.on('mouseover', function () {
const el = d3.select(this);
el.selectAll('path')
Expand Down