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Add text to timeline (revisited) #136

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a31cc19
Add text to timeline
elaqqad Feb 18, 2023
0257926
Update front page image
elaqqad Feb 18, 2023
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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ Timelines Chart
[![NPM Downloads][npm-downloads-img]][npm-downloads-url]

<p align="center">
<a href="https://vasturiano.github.io/timelines-chart/example/categorical/"><img width="80%" src="https://gist.github.com/vasturiano/ded69192b8269a78d2d97e24211e64e0/raw/preview.png"></a>
<a href="https://vasturiano.github.io/timelines-chart/example/categorical/"><img width="80%" src="https://user-images.githubusercontent.com/9079737/219823159-5197f697-cc83-4ea3-8ae0-ed4db3fce3e5.png"></a>
</p>

A parallel timelines layout (swimlanes) for representing state of time-series over time.
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5 changes: 3 additions & 2 deletions example/random-data.js
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Expand Up @@ -36,11 +36,12 @@ function getRandomData(ordinal = false) {
end = new Date(runLength.getTime() + tDivide[1]*segMaxLength);

runLength = new Date(runLength.getTime() + segMaxLength);

const value = ordinal ? categoryLabels[Math.ceil(Math.random()*nCategories)] : Math.random()
return {
timeRange: [start, end],
val: ordinal ? categoryLabels[Math.ceil(Math.random()*nCategories)] : Math.random()
val: value,
//labelVal: is optional - only displayed in the labels
description : value
};
});

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1 change: 1 addition & 0 deletions src/index.d.ts
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Expand Up @@ -11,6 +11,7 @@ export interface Line {
export interface Segment {
timeRange: [TS, TS];
val: Val;
description : string;
}

export type TS = Date | number;
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117 changes: 63 additions & 54 deletions src/timelines.js
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Expand Up @@ -84,7 +84,8 @@ export default Kapsule({
timeRange: timeRange.map(d => new Date(d)),
val,
labelVal: labelVal !== undefined ? labelVal : val,
data: rawData[i].data[j].data[k]
data: rawData[i].data[j].data[k],
description: rawData[i].data[j].data[k].description
});
}
state.totalNLines++;
Expand Down Expand Up @@ -948,83 +949,94 @@ export default Kapsule({

function renderTimelines(maxElems) {

if (maxElems<0) maxElems=null;
if (maxElems < 0) maxElems = null;

const hoverEnlargeRatio = .4;

const dataFilter = (d, i) =>
(maxElems==null || i<maxElems) &&
(state.grpScale.domain().indexOf(d.group)+1 &&
d.timeRange[1]>=state.xScale.domain()[0] &&
d.timeRange[0]<=state.xScale.domain()[1] &&
state.yScale.domain().indexOf(d.group+'+&+'+d.label)+1);
(maxElems == null || i < maxElems) &&
(state.grpScale.domain().indexOf(d.group) + 1 &&
d.timeRange[1] >= state.xScale.domain()[0] &&
d.timeRange[0] <= state.xScale.domain()[1] &&
state.yScale.domain().indexOf(d.group + '+&+' + d.label) + 1);

state.lineHeight = state.graphH/state.nLines*0.8;
state.lineHeight = state.graphH / state.nLines * 0.8;

let timelines = state.graph.selectAll('rect.series-segment').data(
let timelines = state.graph.selectAll('g').data(
state.flatData.filter(dataFilter),
d => d.group + d.label + d.timeRange[0]
d => d.group + d.label + d.description + d.timeRange[0] + d.timeRange[1]
);

timelines.exit()
.transition().duration(state.transDuration)
.style('fill-opacity', 0)
.remove();

const newSegments = timelines.enter().append('rect')
const newSegments = timelines.enter().append('g')
.attr('class', 'series-segment')
.attr('rx', 1)
.attr('ry', 1)
.attr('x', state.graphW/2)
.attr('y', state.graphH/2)
.attr('width', 0)
.attr('height', 0)
.attr("transform", d =>
"translate(" + state.xScale(d.timeRange[0]) + "," + (state.yScale(d.group + '+&+' + d.label) - state.lineHeight / 2) + ")")
.style('fill', d => state.zColorScale(d.val))
.style('fill-opacity', 0)
.style('fill-opacity', 1)
.on('mouseover.groupTooltip', state.groupTooltip.show)
.on('mouseout.groupTooltip', state.groupTooltip.hide)
.on('mouseover.lineTooltip', state.lineTooltip.show)
.on('mouseout.lineTooltip', state.lineTooltip.hide)
.on('mouseover.segmentTooltip', state.segmentTooltip.show)
.on('mouseout.segmentTooltip', state.segmentTooltip.hide);
const segment = newSegments.append("svg")
.attr('class', 'svgband')
.attr('width', d => d3Max([1, state.xScale(d.timeRange[1]) - state.xScale(d.timeRange[0])]))
.attr('height', state.lineHeight)
.style('fill-opacity', .8)
.attr('x', 0)
.attr('y', 0);
segment.append("rect")
.attr('class', 'rectband')
.attr('rx', 1)
.attr('ry', 1)
.attr('x', 0)
.attr('y', 0);
const fontSize = d3Min([20, state.lineHeight*0.8]);
segment.append("text")
.text(d => d.description)
.style("fill", "black")
.style("font-size", fontSize)
.style("font-weight", "bold")
.style("font-family", "sans-serif")
.attr('x', '50%')
.attr('y', '50%')
.attr('dominant-baseline', 'middle')
.attr('text-anchor', 'middle');

newSegments
.on('mouseover', function() {
.on('mouseover', function () {
if ('disableHover' in state && state.disableHover)
return;

MoveToFront()(this);

const hoverEnlarge = state.lineHeight*hoverEnlargeRatio;
const hoverEnlarge = state.lineHeight * hoverEnlargeRatio;

d3Select(this)
.transition().duration(70)
.attr('x', function (d) {
return state.xScale(d.timeRange[0])-hoverEnlarge/2;
})
.attr('width', function (d) {
return d3Max([1, state.xScale(d.timeRange[1])-state.xScale(d.timeRange[0])])+hoverEnlarge;
})
.attr('y', function (d) {
return state.yScale(d.group+'+&+'+d.label)-(state.lineHeight+hoverEnlarge)/2;
})
.attr('height', state.lineHeight+hoverEnlarge)
.style('fill-opacity', 1);
.attr('height', state.lineHeight + hoverEnlarge)
.style('fill-opacity', 1)
.attr("transform", d =>
"translate(" + (state.xScale(d.timeRange[0]) - hoverEnlarge / 2) + "," +
(state.yScale(d.group + '+&+' + d.label) - (state.lineHeight + hoverEnlarge)/2) + ")");
d3Select(this).selectAll('.rectband, .svgband')
.attr('height', state.lineHeight + hoverEnlarge)
.style('fill-opacity', 1)
})
.on('mouseout', function() {
.on('mouseout', function () {
d3Select(this)
.transition().duration(250)
.attr('x', function (d) {
return state.xScale(d.timeRange[0]);
})
.attr('width', function (d) {
return d3Max([1, state.xScale(d.timeRange[1])-state.xScale(d.timeRange[0])]);
})
.attr('y', function (d) {
return state.yScale(d.group+'+&+'+d.label)-state.lineHeight/2;
})
.attr('height', state.lineHeight)
.style('fill-opacity', .8);
.style('fill-opacity', .8)
.attr("transform", d => "translate(" + state.xScale(d.timeRange[0]) + "," + (state.yScale(d.group + '+&+' + d.label) - state.lineHeight / 2) + ")")
d3Select(this).selectAll('.rectband, .svgband')
.attr('height', state.lineHeight)
.style('fill-opacity', 0.8)
})
.on('click', function (ev, s) {
if (state.onSegmentClick)
Expand All @@ -1033,18 +1045,15 @@ export default Kapsule({

timelines = timelines.merge(newSegments);

timelines.transition().duration(state.transDuration)
.attr('x', function (d) {
return state.xScale(d.timeRange[0]);
})
.attr('width', function (d) {
return d3Max([1, state.xScale(d.timeRange[1])-state.xScale(d.timeRange[0])]);
})
.attr('y', function (d) {
return state.yScale(d.group+'+&+'+d.label)-state.lineHeight/2;
})
timelines.transition()
.duration(state.transDuration)
.attr('height', state.lineHeight)
.style('fill-opacity', .8)
.attr("transform", d => "translate(" + state.xScale(d.timeRange[0]) + "," + (state.yScale(d.group + '+&+' + d.label) - state.lineHeight / 2) + ")");

timelines.selectAll('.rectband, .svgband')
.attr('width', d => d3Max([1, state.xScale(d.timeRange[1]) - state.xScale(d.timeRange[0])]))
.attr('height', state.lineHeight)
.style('fill', d => state.zColorScale(d.val))
.style('fill-opacity', .8);
}
}
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