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Website | Gallery: Fix expandable sankey data model #185

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Apr 24, 2023
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Website | Gallery: Fix expandable sankey data model #185

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328 changes: 100 additions & 228 deletions packages/website/src/examples/expandable-sankey/data.ts
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Original file line number Diff line number Diff line change
@@ -1,260 +1,132 @@
export type NodeDatum = {
export type Node = {
id: string;
label: string;
subgroups: string[];
value: number;
subgroups: Node[];
color?: string;
expandable?: boolean;
expanded?: boolean;
level?: number;
};

export type LinkDatum = {
source: string;
target: string;
value: number;
};

export type SankeyData = {
nodes: NodeDatum[];
links: LinkDatum[];
};
}
export type Link = { source: string; target: string; value: number }

export function getColor (n: NodeDatum): string | undefined {
const colorMap = Object.fromEntries([
['1', '#1acb9a'],
['3', '#6A9DFF'],
['4', '#8ee422'],
['5', '#a611a5'],
['6', '#f88080'],
])
return colorMap[n.id.charAt(0)]
export type Sankey = {
readonly nodes: Node[];
readonly links: Link[];
collapse: (n: Node) => void;
expand: (n: Node) => void;
}

const expenditureData = [
const categories = [
{
id: '',
label: 'Average Weekly Expenditure',
value: 414.6,
color: '#d4d4d4',
subgroups: ['1', '2', '3', '4', '5', '6', '7', '8', '9'],
},
{
id: '1',
label: 'Consumables',
color: '#1acb9a',
value: 83.3,
subgroups: ['1A', '1B', '1C'],
},
{
id: '1A',
label: 'Food',
value: 63.3,
subgroups: [],
},
{
id: '1B',
label: 'Drinks',
value: 17.2,
subgroups: ['1Ba', '1Bb'],
},
{
id: '1Ba',
label: 'Non-alcoholic',
value: 5.9,
subgroups: [],
},
{
id: '1Bb',
label: 'Alcoholic',
value: 11.3,
subgroups: [],
},
{
id: '1C',
label: 'Tobacco/narcotics',
value: 2.8,
subgroups: [],
},
subgroups: [
{ label: 'Food', value: 63.3 },
{
label: 'Drinks',
value: 17.2,
subgroups: [
{ label: 'Non-alcoholic', value: 5.9 },
{ label: 'Alcoholic', value: 11.3 },
],
},
{ label: 'Tobacco/narcotics', value: 2.8 },
],
},
{ label: 'Apparel', value: 14.5 },
{
id: '2',
label: 'Apparel',
value: 14.5,
subgroups: [],
},
{
id: '3',
label: 'Household expenses',
color: '#6A9DFF',
value: 131.4,
subgroups: ['3A', '3B', '3C', '3D', '3E'],
subgroups: [
{ label: 'Rent', value: 51.2 },
{
label: 'Utilities',
value: 34.3,
subgroups: [
{ label: 'Water', value: 9.9 },
{ label: 'Power', value: 23.2 },
{ label: 'Other', value: 1.2 },
],
},
{ label: 'Goods & Furninshings', value: 15.0 },
{ label: 'Repair', value: 10 },
{ label: 'Phone/Internet', value: 20.9 },
],
},
{
id: '3A',
label: 'Rent',
value: 51.2,
subgroups: [],
},
{
id: '3B',
label: 'Utilities',
value: 34.3,
subgroups: ['3B1', '3B2', '3B3'],
},
{
id: '3B1',
label: 'Water',
value: 9.9,
subgroups: [],
},
{
id: '3B2',
label: 'Power',
value: 23.2,
subgroups: [],
},
{
id: '3B3',
label: 'Other',
value: 1.2,
subgroups: [],
},
{
id: '3C',
label: 'Goods & Furninshings',
value: 15.0,
subgroups: [],
},
{
id: '3D',
label: 'Repair',
value: 10,
subgroups: [],
},
{
id: '3E',
label: 'Phone/Internet',
value: 20.9,
subgroups: [],
},
{
id: '4',
label: 'Transport',
color: '#8ee422',
value: 60.8,
subgroups: ['4A', '4B'],
},
{
id: '4A',
label: 'Personal transport',
value: 51.2,
subgroups: [],
},
{
id: '4B',
label: 'Public transport',
value: 9.6,
subgroups: [],
subgroups: [
{ label: 'Personal transport', value: 51.2 },
{ label: 'Public transport', value: 9.6 },
],
},
{
id: '5',
label: 'Individual expenses',
color: '#a611a5',
value: 37.0,
subgroups: ['5A', '5B', '5C'],
},
{
id: '5A',
label: 'Insurance',
value: 20.4,
subgroups: [],
},
{
id: '5B',
label: 'Healthcare',
value: 6.7,
subgroups: [],
subgroups: [
{ label: 'Insurance', value: 20.4 },
{ label: 'Healthcare', value: 6.7 },
{ label: 'Personal care', value: 9.9 },
],
},
{
id: '5C',
label: 'Personal care',
value: 9.9,
subgroups: [],
},
{
id: '6',
label: 'Recreation & Culture',
color: '#f88080',
value: 45.5,
subgroups: ['6A', '6B', '6C', '6D', '6E'],
},
{
id: '6A',
label: 'Electronics',
value: 5.0,
subgroups: [],
},
{
id: '6B',
label: 'Events & Activities',
value: 11.3,
subgroups: [],
},
{
id: '6C',
label: 'Pets',
value: 6.7,
subgroups: [],
},
{
id: '6D',
label: 'Hobbies',
value: 16.3,
subgroups: [],
},
{
id: '6E',
label: 'Other',
value: 6.2,
subgroups: [],
},
{
id: '7',
label: 'Education',
value: 8.3,
subgroups: [],
},
{
id: '8',
label: 'Restaurant & Hotels',
value: 18.8,
subgroups: [],
},
{
id: '9',
label: 'Miscellaneous',
value: 15.0,
subgroups: [],
},
subgroups: [
{ label: 'Electronics', value: 5.0 },
{ label: 'Events & Activities', value: 11.3 },
{ label: 'Pets', value: 6.7 },
{ label: 'Hobbies', value: 16.3 },
{ label: 'Other', value: 6.2 },
],
},
{ label: 'Education', value: 8.3 },
{ label: 'Restaurant & Hotels', value: 18.8 },
{ label: 'Miscellaneous', value: 15.0 },
]

const getNode = (id: string): NodeDatum => expenditureData.find((d) => d.id === id)

export const sankeyData: SankeyData = {
nodes: expenditureData.map(d => ({
...d,
level: d.id.length,
expandable: d.subgroups.length !== 0,
expanded: false,
})),
links: expenditureData.flatMap((d) =>
d.subgroups.map((id) => ({
source: d.id,
target: id,
value: getNode(id).value,
}))
),
}
const getNodes = (n: Node): Node[] => n.subgroups?.map((child, i) => ({
...child,
id: [n.id, i].join(''),
color: child.color ?? n.color,
expanded: false,
expandable: child.subgroups?.length > 0,
}))

export const sourceNode = {
...sankeyData.nodes[0],
expandable: false,
}
const getLinks = (n: Node): Link[] => n.subgroups.map(target => ({
source: n.id,
target: target.id,
value: target.value,
}))

const generate = (n: Node): Node => ({ ...n, subgroups: getNodes(n) })

export function getChildren (n: NodeDatum): NodeDatum[] {
return sankeyData.nodes.filter(d => n.subgroups?.includes(d.id))
export const root: Node = generate({
id: 'root',
label: 'Average Weekly Expenditure',
value: 414.7,
expanded: true,
expandable: true,
subgroups: categories as Node[],
})

export const sankeyData: Sankey = {
nodes: [root, ...root.subgroups],
links: getLinks(root),
expand: function (n: Node): void {
n.subgroups = getNodes(n)
this.nodes = this.nodes.concat(n.subgroups)
this.links = this.links.concat(getLinks(n))
},
collapse: function (n: Node): void {
this.nodes = this.nodes.filter(d => d.id === n.id || !d.id.startsWith(n.id))
this.links = this.links.filter(d => !d.source.id.startsWith(n.id))
},
}
5 changes: 2 additions & 3 deletions packages/website/src/examples/expandable-sankey/expandable-sankey.component.html
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Original file line number Diff line number Diff line change
@@ -1,14 +1,13 @@
<vis-single-container [data]="data" [height]="'60vh'">
<vis-single-container #vis [data]="data" [height]="'60vh'">
<vis-sankey
labelFit="wrap"
labelVerticalAlign="middle"
subLabelPlacement="inline"
[nodeCursor]="nodeCursor"
[events]="events"
[labelForceWordBreak]="false"
[labelMaxWidth]="150"
[linkColor]="linkColor"
[nodeColor]="nodeColor"
[nodeCursor]="nodeCursor"
[nodeIcon]="nodeIcon"
[nodePadding]="20"
[subLabel]="subLabel"
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