Function createGraphFromNodeEdge

src/chart/helper/createGraphFromNodeEdge.ts:35–111

(
    nodes: OptionSourceDataOriginal<OptionDataValue, OptionDataItemObject<OptionDataValue>>,
    edges: OptionSourceDataOriginal<OptionDataValue, GraphEdgeItemObject<OptionDataValue>>,
    seriesModel: SeriesModel,
    directed: boolean,
    beforeLink: (nodeData: SeriesData, edgeData: SeriesData) => void
)

import { convertOptionIdName } from '../../util/model';

export default function createGraphFromNodeEdge(
    nodes: OptionSourceDataOriginal<OptionDataValue, OptionDataItemObject<OptionDataValue>>,
    edges: OptionSourceDataOriginal<OptionDataValue, GraphEdgeItemObject<OptionDataValue>>,
    seriesModel: SeriesModel,
    directed: boolean,
    beforeLink: (nodeData: SeriesData, edgeData: SeriesData) => void
): Graph {
    // ??? TODO
    // support dataset?
    const graph = new Graph(directed);
    for (let i = 0; i < nodes.length; i++) {
        graph.addNode(zrUtil.retrieve(
            // Id, name, dataIndex
            nodes[i].id, nodes[i].name, i
        ), i);
    }

    const linkNameList = [];
    const validEdges = [];
    let linkCount = 0;
    for (let i = 0; i < edges.length; i++) {
        const link = edges[i];
        const source = link.source;
        const target = link.target;
        // addEdge may fail when source or target not exists
        if (graph.addEdge(source, target, linkCount)) {
            validEdges.push(link);
            linkNameList.push(zrUtil.retrieve(
                convertOptionIdName(link.id, null),
                source + ' > ' + target
            ));
            linkCount++;
        }
    }

    const coordSys = seriesModel.get('coordinateSystem');
    let nodeData;
    if (coordSys === 'cartesian2d' || coordSys === 'polar' || coordSys === 'matrix') {
        nodeData = createSeriesData(nodes, seriesModel);
    }
    else {
        const coordSysCtor = CoordinateSystem.get(coordSys);
        const coordDimensions = coordSysCtor
            ? (coordSysCtor.dimensions || []) : [];
        // FIXME: Some geo do not need `value` dimenson, whereas `calendar` needs
        // `value` dimension, but graph need `value` dimension. It's better to
        // uniform this behavior.
        if (zrUtil.indexOf(coordDimensions, 'value') < 0) {
            coordDimensions.concat(['value']);
        }

        const { dimensions } = prepareSeriesDataSchema(nodes, {
            coordDimensions: coordDimensions,
            encodeDefine: seriesModel.getEncode()
        });
        nodeData = new SeriesData(dimensions, seriesModel);
        nodeData.initData(nodes);
    }