A COMPUTER-IMPLEMENTED METHOD FOR DRAWING A POLYLINE IN A THREE-DIMENSIONAL SCENE

摘要

A computer-implemented method for drawing a polyline in a three-dimensional scene comprising the steps of:a) drawing a segment (S1) of said polyline in said three-dimensional scene, said segment having a starting point (P1) and an endpoint (P2);b) displaying, in the three-dimensional scene, a graphical tool (PST) representing a set of three orthogonal planes (PLA, PLB, PLC), one of said planes being orthogonal to the segment;c) selecting one of said planes; andd) drawing another segment of the polyline (S2), having a starting point coinciding with the endpoint of the segment drawn in step a) and lying in the plane (PLA) selected in step c);said steps a), c) and d) being carried out according to input commands provided by a user.;A computer program product, non-volatile computer-readable data-storage medium and Computer Aided Design or three-dimensional illustration authoring system for carrying out such a method.