| To draw polylines and curves, you must first choose Plan > Create polylines menu item or select the Create
							polylines tool.
				 
						 Create
								polylines tool
 You may create a new polyline by clicking in the plan at the start point of the new polyline, then at each point of the polyline until you
						double-click at its end point or press Escape key. If the final double-click is located on the start point, the path of the polyline is
						closed, resulting in the creation of a polygon. If you press Ctrl key (or alt key under Mac OS X) while drawing the first segment,
						a curve will be created if the polyline counts at leat 3 points.Polylines and curves appear only in the plan and have no
						representation in the 3D view.
 
						
							|  |  
							| Various polylines, curves and polygons |  To end the drawing of polylines, choose Plan > Select  or select the Select tool (or an other tool).
				 
						 Select tool
 |