@visactor/vgrammar-hierarchy
Version:
Layout of hierarchical data for VGrammar
8 lines • 337 B
JavaScript
export default function(parent, x0, y0, x1, y1) {
const nodes = parent.children;
let node, i = -1;
const n = nodes.length, k = parent.value && (y1 - y0) / parent.value;
for (;++i < n; ) node = nodes[i], node.x0 = x0, node.x1 = x1, node.y0 = y0, y0 += node.value * k,
node.y1 = y0;
}
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