@antv/layout/lib/util/common.js

graph layout algorithm

/**
 * Return the layout result for a graph with zero or one node.
 * @param graph original graph
 * @param center the layout center
 * @returns layout result
 */
function applySingleNodeLayout(model, center, dimensions = 2) {
    const n = model.nodeCount();
    if (n === 1) {
        const first = model.firstNode();
        first.x = center[0];
        first.y = center[1];
        if (dimensions === 3) {
            first.z = center[2] || 0;
        }
    }
}

export { applySingleNodeLayout };
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