Hofmann GR1D

Hofmann GR1D lays out a grid of equal circles and lets you draw contours by clicking one dot, choosing a target, and reviewing the common-tangent candidates before committing, then completing each form with arcs that follow a directional flow until the contour closes. Set the layout with the Cols, Rows, and Radius Ratio sliders, pick a default color, and toggle Show Dots to keep or hide the underlying construction points. Undo or Clear as you go, hit Surprise Me to generate a contour automatically, and open Help for the staged prompts. Export at preset sizes such as 512×512 as PNG or SVG, with an Include Dots toggle to keep or drop the grid in the output.