Function getSourceNode

src/chart/tree/TreeView.ts:631–641

(virtualRoot: TreeNode, node: TreeNode)

}

function getSourceNode(virtualRoot: TreeNode, node: TreeNode): { source: TreeNode, sourceLayout: TreeNodeLayout } {
    let source = node.parentNode === virtualRoot ? node : node.parentNode || node;
    let sourceLayout;
    while (sourceLayout = source.getLayout(), sourceLayout == null) {
        source = source.parentNode === virtualRoot ? source : source.parentNode || source;
    }
    return {
        source,
        sourceLayout
    };
}

function removeNode(
    data: SeriesData,