Patent ID: 9047709
Filing Date: 2015-06-02
Classification: G06T

Abstract:
1. A computer implemented method for providing a user interface to form an annotated angle from a plurality of points, each point specified by a user, comprising: receiving a first point specified by a user, the first point specifying a start point and a start direction, wherein the start direction is determined by a first preexisting line that the user specified the start point on; receiving a second point specified by the user, the second point specifying an end point and an end direction, wherein the end direction is determined by a second preexisting line that the user specified the end point on; calculating a vertex for the annotated angle based on the first point and the second point; generating a first line from the vertex to the start point and a second line from the vertex to the end point, wherein the first line and the second line are of equal length; receiving a third point specified by a user, the third point specifying a length from the vertex to the third point; generating a first extension line of the first line, in the same direction as the first line, wherein the length of the first line and first extension line is equal to the length from the vertex to the third point; generating a second extension line of the second line, in the same direction as the second line, wherein the length of the second line and second extension line is equal to the length from the vertex to the third point; and displaying the annotated angle on the user interface.