Function commonLayout

src/chart/tree/treeLayout.ts:45–135

(seriesModel: TreeSeriesModel, api: ExtensionAPI)

}

function commonLayout(seriesModel: TreeSeriesModel, api: ExtensionAPI) {
    const refContainer = createBoxLayoutReference(seriesModel, api).refContainer;
    const layoutInfo = getLayoutRect(seriesModel.getBoxLayoutParams(), refContainer);
    seriesModel.layoutInfo = layoutInfo;
    const layout = seriesModel.get('layout');
    let width = 0;
    let height = 0;
    let separation = null;

    if (layout === 'radial') {
        width = 2 * Math.PI;
        height = Math.min(layoutInfo.height, layoutInfo.width) / 2;
        separation = sep(function (node1, node2) {
            return (node1.parentNode === node2.parentNode ? 1 : 2) / node1.depth;
        });
    }
    else {
        width = layoutInfo.width;
        height = layoutInfo.height;
        separation = sep();
    }

    const virtualRoot = seriesModel.getData().tree.root as TreeLayoutNode;
    const realRoot = virtualRoot.children[0];

    if (realRoot) {
        init(virtualRoot);
        eachAfter(realRoot, firstWalk, separation);
        virtualRoot.hierNode.modifier = -realRoot.hierNode.prelim;
        eachBefore(realRoot, secondWalk);

        let left = realRoot;
        let right = realRoot;
        let bottom = realRoot;
        eachBefore(realRoot, function (node: TreeLayoutNode) {
            const x = node.getLayout().x;
            if (x < left.getLayout().x) {
                left = node;
            }
            if (x > right.getLayout().x) {
                right = node;
            }
            if (node.depth > bottom.depth) {
                bottom = node;
            }
        });

        const delta = left === right ? 1 : separation(left, right) / 2;
        const tx = delta - left.getLayout().x;
        let kx = 0;
        let ky = 0;
        let coorX = 0;
        let coorY = 0;
        if (layout === 'radial') {
            kx = width / (right.getLayout().x + delta + tx);
            // here we use (node.depth - 1), bucause the real root's depth is 1
            ky = height / ((bottom.depth - 1) || 1);
            eachBefore(realRoot, function (node) {