Sketcher CreateOctagon

Description
Draws an octagon inscribed in a construction geometry circle. When starting the tool, the mouse pointer changes to a white cross with a red hexagon icon. The coordinates of the pointer are shown beside it in blue in real time.



Usage

 * After pressing the button, click once to set the center, then move the mouse and click a second time to set one of the vertices.
 * Pressing or clicking the right mouse button cancels the function.