Hello everyone !

I mainly use 3D coordinates to draw lines arcs. At one moment, I noticed that some of the commands, "arc" for instance, can do errors... or at least, it does not give what was expected.

Via the typed command "arc", I set the 3 points, with the following script:

arc

1.3457,0.0184,0.05

1.3107,-0.3092,0.

1.1955,-0.618,-0.05

Logically, the extremities of the arcs should be located at 1.3457,0.0184,0.05 and 1.1955,-0.618,-0.05, but there are not. (error is mostly along Z axis). Note that it works perfectly with lines, and points.

Am I correct ? Is there a problem here ?

With the mouse, I can produce the correct arc, by re-ajusting the Z coordinate and changing view. The attached dwg allows seeing the problem the green arc is expected, and the white one is false...