Updraw

Updraw is the 2D CAD tool you've always wanted for your mac! It allows you to draw familiar shapes and add constraints to solve for unknown distances and angles. Features: • Intuitive interface designed specifically for 2D CAD constraint solving • Familiar 2D geometry: points, lines, circles, arcs, and cubic splines • Global constraint solver calculations: distance, diameter, radius, coincident, parallel, perpendicular, angle, congruence, intersection, midpoint, symmetric, and tangent (line to arc, line to spline, circles and arcs) • Interactive and manual solver modes help to resolve constraint ambiguities • PDF and PNG image export