The following straight and curved line elements can be created in ARCHICAD using the different Line tools and geometry methods.
Double-clicking any of the Line type tools will open a dialog box in which you can adjust the settings of the given tool.
In each of these dialog boxes, the Uniform Settings for Line Tools checkbox allows you to apply the settings made in this dialog box to all line-type tools: Line, Arc/Circle, Spline, Polyline.
Favorites of any of the four Line-type tools (Line, Arc, Polyline, Spline) can be applied to any of the other Line-type elements.
For more information, see Line Tool Settings, Arc/Circle Tool Settings, Spline Tool Settings and Polyline Tool Settings.