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How to use
Drag the cloud to rotate it. Pick a preset, then move the scale epsilon slider (or let it grow): balls of radius epsilon/2 appear around the points, pairs within epsilon are joined and triangles fill in. The coloured thick loops are the longest H1 features. The barcode and the persistence diagram show the same bars: long (far from the diagonal) means real, short means noise; raise Significance to grey out more. The Betti curves count pieces and loops at each scale, and the stability sweep perturbs every point and compares the barcodes.