← Home
CPP50121 Diploma of Surveying · Plot 4 of 10 · CPPSSI5053

Circular Curve Plotter — Live Geometry

200 m
90°

All five curve elements update live. TD (blue) = tangent distance. Arc (green) = arc length. LC (ochre) = long chord. E (red) = external secant. M = mid ordinate. The radius is always perpendicular to the tangent at PC and PT.

Source: CPPSSI5053 Study Guide