get 2d poly line coordinates with bulge factor

Hi All

i am taking 2d polyline as input i want the coordinates of that polyline with bulge factor. later on how to draw a 3d poly line with that same points

Thanks in advance

I don't think 3Dpolylines can have a bulge factor, must be straight segments.

If understand well your issue, the code below will allow you to create a list with vertexes of polyline (no error protections), next use SUBST function to modify the Z coordinate with desired amount (this code should be based on length of vertexes list) and generate the 3D polyline from this list.

(setq PLineEntity    (car (entsel "Select polyline: "))   ;select polyline to list
     PLineAssocList (entget PLineEntity)                 ;get his associated list
     VertexesList   '())
(foreach SubList PLineAssocList                           ;parse polyline to list vertexes
(if (= (car SubList) 10)   ; code DXF 10 = vertex
 (setq VertexesList (append VertexesList                 ;store vertex coordinates
                            (list (cdr SubList))))
)
)

Regards,

In fact seems that the OP is looking for a VBA solution – the same is posted in AutoCAD Beginners' Area, also…

I don't think 3Dpolylines can have a bulge factor, must be straight segments.

You could in the old-school 2d ones.

Here is a routine in Autolsip that will convert any LINE, ARC or *POLYLINE to a 3DPOLY. -David

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