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31 lines
1012 B
31 lines
1012 B
/**
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* Assign or only return the result for the graph who has no nodes or only one node.
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* @param graph original graph
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* @param assign whether assign result to original graph
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* @param center the layout center
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* @returns
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*/
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export const handleSingleNodeGraph = (graph, assign, center) => {
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const nodes = graph.getAllNodes();
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const edges = graph.getAllEdges();
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if (!(nodes === null || nodes === void 0 ? void 0 : nodes.length)) {
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const result = { nodes: [], edges };
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return result;
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}
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if (nodes.length === 1) {
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if (assign) {
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graph.mergeNodeData(nodes[0].id, {
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x: center[0],
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y: center[1],
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});
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}
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const result = {
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nodes: [
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Object.assign(Object.assign({}, nodes[0]), { data: Object.assign(Object.assign({}, nodes[0].data), { x: center[0], y: center[1] }) }),
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],
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edges,
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};
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return result;
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}
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};
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//# sourceMappingURL=common.js.map
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