PointVis

Geometry scratchpad for competitive programming.

Mode

Input

Paste raw judge input — optional leading n, then x y pairs. Commas, parentheses and brackets are ignored.

Analysis

Convex hullMonotone chain Closest pairSweep line Best-fit lineLeast squares + R²

Added Points 0

Display

Labels

Index base

Integer snapLock clicks to lattice points Show grid Shape measurementsLengths, slopes, areas on canvas

Copy points as

By M0stafa

0, 0 1× n = 0