Circle > Object - Object - Point (Draw Menu)

This command draws a circle which is tangent to two objects (line, circle, Construction Aid line, or Construction Aid circle) and runs through a given point.

If a circle is to be drawn while working in isometric or dimetric views, this must be done with the command Ellipse > Vector - Vector because the result on the page is not circular but elliptical.

Any line or circle in an existing object can be identified as the first reference object. This can also be a side of a rectangle or a leg of a circle segment.

The position at which the line is identified (the "ID point") does not affect the rest of the command. Because there are four possible results, choosing them based on the position of the ID points would be too complicated.

Any line or circle in an existing object can be identified as the second reference object. This can also be a side of a rectangle or a leg of a circle segment.

The point through which the circle should run can be entered by clicking the mouse anywhere in the drawing.

After identifying all three reference lines, all the possible circles are calculated (the graphic shows one possible set of results).

The desired circle can then be chosen with the help of a small dialog. Only one circle can be chosen at a time.

If all three reference lines are parallel to one another, then a circle can not be worked out and an error message appears. However the calculation is possible if only two of the reference lines are parallel.

The circle is assigned to the current layer. In addition, it contains a reference to the current pen.