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feat(sankey): add support for label on Sankey diagram
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Raphaël Benitte
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Aug 22, 2017
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| Original file line number | Diff line number | Diff line change |
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@@ -61,6 +61,9 @@ export const defaultTheme = { | |
| padding: '3px 5px', | ||
| }, | ||
| }, | ||
| sankey: { | ||
| label: {}, | ||
| }, | ||
| } | ||
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| export default { | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| /* | ||
| * This file is part of the nivo project. | ||
| * | ||
| * Copyright 2016-present, Raphaël Benitte. | ||
| * | ||
| * For the full copyright and license information, please view the LICENSE | ||
| * file that was distributed with this source code. | ||
| */ | ||
| import React from 'react' | ||
| import PropTypes from 'prop-types' | ||
| import { cloneDeep } from 'lodash' | ||
| import pure from 'recompose/pure' | ||
| import { TransitionMotion, spring } from 'react-motion' | ||
| import { extractRGB } from '../../../lib/colorUtils' | ||
| import { motionPropTypes } from '../../../props' | ||
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| const SankeyLabels = ({ | ||
| nodes, | ||
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| width, | ||
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| labelPosition, | ||
| labelPadding, | ||
| labelOrientation, | ||
| getLabelTextColor, | ||
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| theme, | ||
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| // motion | ||
| animate, | ||
| motionDamping, | ||
| motionStiffness, | ||
| }) => { | ||
| const labelRotation = labelOrientation === 'vertical' ? -90 : 0 | ||
| const labels = nodes.map(node => { | ||
| let x | ||
| let textAnchor | ||
| if (node.x < width / 2) { | ||
| if (labelPosition === 'inside') { | ||
| x = node.x1 + labelPadding | ||
| textAnchor = labelOrientation === 'vertical' ? 'middle' : 'start' | ||
| } else { | ||
| x = node.x - labelPadding | ||
| textAnchor = labelOrientation === 'vertical' ? 'middle' : 'end' | ||
| } | ||
| } else { | ||
| if (labelPosition === 'inside') { | ||
| x = node.x - labelPadding | ||
| textAnchor = labelOrientation === 'vertical' ? 'middle' : 'end' | ||
| } else { | ||
| x = node.x1 + labelPadding | ||
| textAnchor = labelOrientation === 'vertical' ? 'middle' : 'start' | ||
| } | ||
| } | ||
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| return { | ||
| id: node.id, | ||
| x, | ||
| y: node.y + node.height / 2, | ||
| textAnchor, | ||
| color: getLabelTextColor(node), | ||
| } | ||
| }) | ||
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| if (!animate) { | ||
| return ( | ||
| <g> | ||
| {labels.map(label => { | ||
| return ( | ||
| <text | ||
| key={label.id} | ||
| alignmentBaseline="central" | ||
| textAnchor={label.textAnchor} | ||
| transform={`translate(${label.x}, ${label.y}) rotate(${labelRotation})`} | ||
| style={{ ...theme.sankey.label, fill: label.color }} | ||
| > | ||
| {label.id} | ||
| </text> | ||
| ) | ||
| })} | ||
| </g> | ||
| ) | ||
| } | ||
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| const springProps = { | ||
| damping: motionDamping, | ||
| stiffness: motionStiffness, | ||
| } | ||
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| return ( | ||
| <TransitionMotion | ||
| styles={labels.map(label => { | ||
| return { | ||
| key: label.id, | ||
| data: label, | ||
| style: { | ||
| x: spring(label.x, springProps), | ||
| y: spring(label.y, springProps), | ||
| rotation: spring(labelRotation, springProps), | ||
| ...extractRGB(label.color, springProps), | ||
| }, | ||
| } | ||
| })} | ||
| > | ||
| {interpolatedStyles => | ||
| <g> | ||
| {interpolatedStyles.map(({ key, style, data }) => { | ||
| const { colorR, colorG, colorB } = style | ||
| const color = `rgb(${Math.round(colorR)},${Math.round(colorG)},${Math.round( | ||
| colorB | ||
| )})` | ||
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| return ( | ||
| <text | ||
| key={key} | ||
| transform={`translate(${style.x}, ${style.y}) rotate(${style.rotation})`} | ||
| alignmentBaseline="central" | ||
| textAnchor={data.textAnchor} | ||
| style={{ ...theme.sankey.label, fill: color }} | ||
| > | ||
| {data.id} | ||
| </text> | ||
| ) | ||
| })} | ||
| </g>} | ||
| </TransitionMotion> | ||
| ) | ||
| } | ||
|
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| SankeyLabels.propTypes = { | ||
| nodes: PropTypes.arrayOf( | ||
| PropTypes.shape({ | ||
| id: PropTypes.oneOfType([PropTypes.string, PropTypes.number]).isRequired, | ||
| x1: PropTypes.number.isRequired, | ||
| x: PropTypes.number.isRequired, | ||
| y: PropTypes.number.isRequired, | ||
| width: PropTypes.number.isRequired, | ||
| height: PropTypes.number.isRequired, | ||
| }) | ||
| ).isRequired, | ||
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| width: PropTypes.number.isRequired, | ||
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| labelPosition: PropTypes.oneOf(['inside', 'outside']).isRequired, | ||
| labelPadding: PropTypes.number.isRequired, | ||
| labelOrientation: PropTypes.oneOf(['horizontal', 'vertical']).isRequired, | ||
| getLabelTextColor: PropTypes.func.isRequired, | ||
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| theme: PropTypes.shape({ | ||
| sankey: PropTypes.shape({ | ||
| label: PropTypes.object.isRequired, | ||
| }).isRequired, | ||
| }).isRequired, | ||
|
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| ...motionPropTypes, | ||
| } | ||
|
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| export default pure(SankeyLabels) |
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