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 Creates a polygon with a right angle between the first and the last line segment. 
 To generate automatically right angles (or 45 degree): 
 
 
 If the conditions Snap mode=off and Ctrl keys=hold are not met, a warning box appears. You can suppress the warning until the next MapCAD start. 
 Complete digitization with a double-click to the last corner point (NOT back to the starting point). The last line segment is automatically generated with a right angle to the first line segment (by moving the first digitized node).  |