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: DIMENS : Curve:Arcs/LinesShortcut
: NoneNormally curves are stored by DeskArtes as free-form curves in either B-spline or Bézier format. These curves may not actually be very free form since they may be made up from straight line and circular arc portions. This command extracts the circlular arcs and straight lines from a curve or curve set, cutting the curves into smaller pieces accordingly.
As parameters, the command requires:Tightening the first two tolerances results in a better approximation, but it increases the number of curve segments (arcs) produced. Choosing optimal parameter values depends greatly on the application.
After execution of the command, the approximated curve is displayed on top of the original, to enable visual checking of the result. Those arcs which were recogniced as exactly defined fillets are colored as red. The approximated arcs are colored with two shades of pink colors. Straight lines are colored with green.
You may use this command before writing curves into a DXF file. The system receiving the curve will then know which parts of the curves are standard geometry, and which is truly free form.
Arcs/Lines
should also generally be used before entering Curve Dimension mode, as you can then exactly select the straight-line end points as dimension points.