Topic: Hatch boundary modified by lisp: how to update the hatch?

[roy_043]

I am playing around with True Rectangle by Gile:
http://www.theswamp.org/index.php?topic=29339.0
(Thank you Gile for that great reactor example!)

Basically Gile's code updates the coordinates of a rectangle after every user modification, making sure it stays a true rectangle. If the rectangle is a hatch boundary the hatch is not automatically updated (the rectangle can of course be the boundary of any number of hatches). The only solution I have come up with is to move the rectangle after the coordinates have been updated:

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<snip>
  (setvar 'cmdecho 0)
  (vl-cmdf "_.move" ent "" '(0 0 0) '(0 0 0))
  (setvar 'cmdecho 1)
<snip>

Without success I have also tried the following on individual hatches:

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(vla-evaluate (vlax-ename->vla-object (car (entsel))))

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(vla-update (vlax-ename->vla-object (car (entsel))))

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(vla-setpattern (vlax-ename->vla-object (car (entsel))) achatchpatterntypepredefined "ANSI32")
Is there a different way (not using vl-cmdf) to force all the hatches of which the rectangle is a boundary to update?

[Fred Tomke]

Hi, have you already tried (vla-update (vlax-get-acad-object)) or (vla-regen (vla-get-document oHatch) acActiveViewport) or (entmod (entget entHatch))?

Fred

[roy_043]

Fred, thanks for responding. The problem is that the hatches retain their original boundary data. The lisp modification of the rectangle doesn't trigger an update the way a normal command does. Even saving, closing and reopening doesn't help.

So your suggestions, sadly, don't work :

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(vla-update (vlax-get-acad-object))

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(vla-regen (vla-get-document (vlax-ename->vla-object (car (entsel)))) acallviewports)

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(entmod (entget (car (entsel))))

[Fred Tomke]

That's interesting, because I have a tool that appends or removes points from the polyline and automatically the hatch will be updated after (entmod lstNewList).

That's really bad. Then I have no other idea.
Fred

[roy_043]

... and automatically the hatch will be updated after (entmod lstNewList).

I Use Bricscad. Maybe AutoCAD behaves better!