VS:OffsetHandle
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Description
Creates a group of lines which represent the weighted medial axis of given polygon.
FUNCTION OffsetHandle(
h :HANDLE;
offsetDistance :REAL;
EdgeRestoration :BOOLEAN;
FilletSharpEdges :BOOLEAN) : HANDLE;
def vs.OffsetHandle(h, offsetDistance, EdgeRestoration, FilletSharpEdges): return HANDLE
Parameters
h HANDLE offsetDistance REAL EdgeRestoration BOOLEAN FilletSharpEdges BOOLEAN
Remarks
(Orso, 2014.03.25): The routine was introduced undocumented by VW11 (2006).
Warning:
- The parameter offsetDistance takes mm, unregarded unit's settings.
- If you pass a polygon/polyline it outputs a group containing a polygon/polyline, not a group of lines.
- Polyline holes are ignored
- Undo fails on this action: you should consider carefully if using this routine
- VW 2011, 2012, 2013
- the handle h doesn't set. Use LObject to grab the handle. This is dangerous, if the routine fails, LObject will be something else: store LObject before running the script and afterwards and compare. If they are different the routines succeeded.
- VW 2014
- the handle will set as expected, undo still fails
Example
PROCEDURE tryOffsetH;
VAR
prevLObj, sourcePoly, h : HANDLE;
temp_b : BOOLEAN;
BEGIN
sourcePoly := FSActLayer;
IF (sourcePoly <> NIL) THEN BEGIN
{ bug: h2 won't set with OffsetHandle until VW 2014 }
prevLObj := LObject; { store for later comparison }
h := OffsetHandle(sourcePoly, -10, TRUE, TRUE); { negative offset -10mm }
h := LObject;
IF (prevLObj <> NIL) & (prevLObj <> h) THEN BEGIN
Message('Type: ', GetType(h), ' - ', h);
ResetObject(h);
HUngroup(h);
SetDSelect(sourcePoly);
END;
END;
END;
Run(tryOffsetH);</code">
Version
Availability: from Vectorworks 2014
See Also
Similar calls:
Similar calls:
- [[VS:OffsetPoly]]
- [[VS:OffsetPolyN]]