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feat: display the tree for similarity
close #2905
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| import { createTree } from 'ml-tree-similarity'; | ||
| import { Spectrum1D } from 'nmr-load-save'; | ||
| import { CSSProperties, Fragment } from 'react'; | ||
|
|
||
| import { useChartData } from '../context/ChartContext'; | ||
| import { useScaleChecked } from '../context/ScaleContext'; | ||
| import { useFormatNumberByNucleus } from '../hooks/useFormatNumberByNucleus'; | ||
| import useSpectrum from '../hooks/useSpectrum'; | ||
|
|
||
| const circleSize = 3; | ||
| const marginTop = circleSize + 10; | ||
| const circleColor: CSSProperties['color'] = 'red'; | ||
| const lineColor: CSSProperties['color'] = 'black'; | ||
| const textColor: CSSProperties['color'] = 'red'; | ||
| const textPadding = circleSize + 2; | ||
| const textSize = 10; | ||
| const maxTreeLevels = 25; | ||
|
|
||
| export default function SimilarityTree() { | ||
| const { | ||
| height, | ||
| view: { | ||
| spectra: { activeTab, showSimilarityTree }, | ||
| }, | ||
| } = useChartData(); | ||
| const spectrum = useSpectrum(); | ||
| const format = useFormatNumberByNucleus(activeTab); | ||
| const { scaleX } = useScaleChecked(); | ||
| const scaleY = (value: number) => (height * value) / maxTreeLevels; | ||
| const treeHeadLength = height / maxTreeLevels; | ||
|
|
||
| if (!spectrum || !showSimilarityTree) return null; | ||
|
|
||
| const { | ||
| data: { x, re }, | ||
| } = spectrum as Spectrum1D; | ||
| const tree = createTree({ x, y: re }); | ||
| const data = mapTreeToArray(tree, 0); | ||
|
|
||
| return ( | ||
| <g className="similarity-tree" transform={`translate(0,${marginTop})`}> | ||
| <g className="tree-lines"> | ||
| {data.map(({ level, center, parentCenter, parentLevel }) => { | ||
| if (parentCenter === undefined) return null; | ||
|
|
||
| const startX = scaleX()(parentCenter); | ||
| const startY = scaleY(parentLevel); | ||
| const midY = startY + treeHeadLength / 2; | ||
| const endX = scaleX()(center); | ||
| const endY = scaleY(level); | ||
| const path = `M ${startX} ${startY} L ${startX} ${midY} L${endX} ${midY} L${endX} ${endY}`; | ||
|
|
||
| return <path key={path} d={path} fill="none" stroke={lineColor} />; | ||
| })} | ||
| </g> | ||
| <g className="tree-nodes"> | ||
| {data.map(({ level, center }) => { | ||
| const x = scaleX()(center); | ||
| const y = scaleY(level); | ||
| return ( | ||
| <Fragment key={`${level}${center}`}> | ||
| <circle cx={x} cy={y} r={circleSize} fill={circleColor} /> | ||
| <text | ||
| x={x + textPadding} | ||
| y={y} | ||
| textAnchor="start" | ||
| alignmentBaseline="middle" | ||
| fill={textColor} | ||
| fontSize={textSize} | ||
| > | ||
| {format(center)} | ||
| </text> | ||
| </Fragment> | ||
| ); | ||
| })} | ||
| </g> | ||
| </g> | ||
| ); | ||
| } | ||
|
|
||
| interface TreeItem { | ||
| center: number; | ||
| sum: number; | ||
| level: number; | ||
| parentCenter?: number; | ||
| parentLevel?: number; | ||
| } | ||
|
|
||
| function mapTreeToArray( | ||
| node: any, | ||
| level: number, | ||
| parentCenter = null, | ||
| parentLevel = -1, | ||
| ) { | ||
| if (!node) return []; | ||
|
|
||
| const { center, sum } = node; | ||
| const result: TreeItem[] = [{ center, sum, level }]; | ||
|
|
||
| for (const obj of result) { | ||
| if (parentCenter) { | ||
| obj.parentCenter = parentCenter; | ||
| obj.parentLevel = parentLevel; | ||
| } | ||
| } | ||
|
|
||
| const left = mapTreeToArray(node.left, level + 1, center, parentLevel + 1); | ||
| const right = mapTreeToArray(node.right, level + 1, center, parentLevel + 1); | ||
| return result.concat(left, right); | ||
| } |
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