Updraw is the 2D CAD tool youve always wanted in your pocket It allows you to draw familiar shapes and add constraints to solve for unknown distances and angles. Features: Intuitive interface designed specifically for touch screens 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