To set a custom angle in one or more points from a piece, select the point(s), and, in the Context bar, click on Set custom angle (°). Enter the values in the field next to the button, and press Enter, for validation.
The angle between two tangents or between a tangent and a line is fixed and maintained independently from the control point movement.
It is useful to create corners with complementary angles or 90° corners, even if a curve starts from that corner.
These points can be used between 2 curves or between a curve and a line. They cannot be used between 2 lines.