Line Definition

The different ways of defining a line, called line modes will, after selecting Insert > Line, appear as a toolbar:

• HORIZONTAL THROUGH A POINT

• VERTICAL THROUGH A POINT

• END POINTS

• PARALLEL TO A LINE, AT DISTANCE

• PERPENDICULAR TO A LINE, THROUGH A POINT

• AT ANGLE TO A LINE, THROUGH A POINT

• TANGENT TO ARC, THROUGH A POINT

• TANGENT TO ARC, PERPENDICULAR TO A LINE

• TANGENT TO ARC, PARALLEL TO A LINE

• TANGENT TO TWO ARCS

Since the initial system-proposed line mode is always "EXISTING LINE", this mode will appear in the toolbar. Whenever the user is requested to supply a line, the user can redefine the system-proposed line mode just by selecting "LINE"and choose one of these alternative from the toolbar.