InsertLoopAt method of a Hatch

[tcorey]

Hello geniuses,

A hatch object has a method called InsertLoopAt (3). Does anyone have a reference  for this method? I can't figure out what it's asking for. I am giving it points and am getting a mismatch error.

[TerryDotson]

I've never used that, but I do remember that hatch creation code require operations somewhat in a particular order, more restrictive than you would think.   This being a generic AutoCAD .NET related item, you would be better off searching and posting in that forum.

https://forums.autodesk.com/t5/net/bd-p/152

[Jeff_M]

@tcorey Tim, I'm guessing you are asking about doing this in lisp. The ActiveX docs has an example of using this method here:

https://help.autodesk.com/view/OARX/2020/ENU/?guid=GUID-E35E3387-14E8-433D-B6A6-82E034A11BEE

I'm not sure why many of the lisp lines of code are commented out, but it should help.

[tcorey]

Thanks, @Jeff_M . I will try to figure it out from what you linked. My goal is to be able to select text objects and have them added as Islands in an existing Hatch.

[Jeff_M]

@tcorey Use the AppendInnerLoop method:

(setq hatch (vl-sel));;just a helper routine to entsel an object and convert to vla-object
(setq txt (vl-sel))
(setq innerLoop1 (vlax-make-safearray vlax-vbObject '(0 . 0)))
(vlax-safearray-put-element innerLoop1 0 txt)
(vla-AppendInnerLoop hatch innerLoop1)
(vla-Evaluate hatch)
(setq doc (vla-get-activedocument (vlax-get-acad-object)))
(vla-Regen doc :vlax-true)