Hatching - Boundary appears to not be closed.

[matt4]

Hi,

 

How can I find the area that's causing this problem when trying to hatch? Is there a quick way to check which two entites are not joined?

 

Thanks

 

Btw: The error I get is below..

[Lee Mac]

Perhaps use this to Close all Polylines?

 

[b][color=RED]([/color][/b][b][color=BLUE]defun[/color][/b] c:cls [b][color=RED]([/color][/b][b][color=BLUE]/[/color][/b] ss[b][color=RED])[/color][/b]
 [b][color=RED]([/color][/b][b][color=BLUE]vl-load-com[/color][/b][b][color=RED])[/color][/b]
 [b][color=RED]([/color][/b][b][color=BLUE]if[/color][/b] [b][color=RED]([/color][/b][b][color=BLUE]setq[/color][/b] ss [b][color=RED]([/color][/b][b][color=BLUE]ssget[/color][/b] [b][color=RED]([/color][/b][b][color=BLUE]list[/color][/b] [b][color=RED]([/color][/b][b][color=BLUE]cons[/color][/b] [b][color=#009900]0[/color][/b] [b][color=#ff00ff]"*POLYLINE"[/color][/b][b][color=RED])[/color][/b]
   [b][color=RED]([/color][/b][b][color=BLUE]if[/color][/b] [b][color=RED]([/color][/b][b][color=BLUE]getvar[/color][/b] [b][color=#ff00ff]"CTAB"[/color][/b][b][color=RED])[/color][/b][b][color=RED]([/color][/b][b][color=BLUE]cons[/color][/b] [b][color=#009900]410[/color][/b] [b][color=RED]([/color][/b][b][color=BLUE]getvar[/color][/b] [b][color=#ff00ff]"CTAB"[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b]
      [b][color=RED]([/color][/b][b][color=BLUE]cons[/color][/b] [b][color=#009900]67[/color][/b] [b][color=RED]([/color][/b][b][color=BLUE]-[/color][/b] [b][color=#009900]1[/color][/b] [b][color=RED]([/color][/b][b][color=BLUE]getvar[/color][/b] [b][color=#ff00ff]"TILEMODE"[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b]
   [b][color=RED]([/color][/b][b][color=BLUE]mapcar[/color][/b] [b][color=DARKRED]'[/color][/b][b][color=RED]([/color][/b][b][color=BLUE]lambda[/color][/b] [b][color=RED]([/color][/b]x[b][color=RED])[/color][/b] [b][color=RED]([/color][/b][b][color=BLUE]vla-put-Closed[/color][/b] x [b][color=Blue]:vlax-true[/color][color=RED])[/color][/b][b][color=RED])[/color][/b]
           [b][color=RED]([/color][/b][b][color=BLUE]mapcar[/color][/b] [b][color=DARKRED]'[/color][/b][b][color=BLUE]vlax-ename->vla-object[/color][/b]
                   [b][color=RED]([/color][/b][b][color=BLUE]vl-remove-if[/color][/b] [b][color=DARKRED]'[/color][/b][b][color=BLUE]listp[/color][/b] [b][color=RED]([/color][/b][b][color=BLUE]mapcar[/color][/b] [b][color=DARKRED]'[/color][/b][b][color=BLUE]cadr[/color][/b] [b][color=RED]([/color][/b][b][color=BLUE]ssnamex[/color][/b] ss[b][color=RED])[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b]
   [b][color=RED]([/color][/b][b][color=BLUE]princ[/color][/b] [b][color=#ff00ff]"\n<!> Nothing Selected <!>"[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b]
 [b][color=RED]([/color][/b][b][color=BLUE]princ[/color][/b][b][color=RED])[/color][/b][b][color=RED])[/color][/b]

[AlinOz]

I know this doesn't help you, but 2010 has a function which shows you where it is open by showing a red circle around the opening/s.

 

If you are trying to hatch inside a polyline, if you doubleclick the Polyline you will automatically be thrown into the PEDIT command. If the first option offered is Close, then the Pline is open... Choose to close it. That should solve it if that's the case.

 

Can you see all of the objects that would form the boundary in your current view? AutoCAD appears to only want to work with visible objects and tends to ignore those beyond the 'screen'.

 

If it isn't a Polyline and you can see all of the Objects, I'd recommend that you play with the HPGAPTOL variable as it suggests. Depending on how big the gap is, it can deal with it by adjusting that Variable...

 

Hope that's a starting point for you...

[GCarr78]

Hi,

 

How can I find the area that's causing this problem when trying to hatch? Is there a quick way to check which two entites are not joined?

 

Thanks

 

Btw: The error I get is below..

I find it easier when I'm drawing the any polyline I intend to close, when the last segmant comes up instead of snapping to the inital point of my polyline, I use the "Close" command... it automatically closes your polyline so that problem does not happen in the first place.

 

Try clicking on your polyline, look at the properties flyout and it should tell you somewhere whether it is closed or not, you can toggle between those settings and AutoCAD should be able to close it automatically for you.

[SuperCAD]

What's really going to tick you off is when you KNOW darn well that your boundary is closed, and you get that same error message.

[Lee Mac]

What's really going to tick you off is when you KNOW darn well that your boundary is closed, and you get that same error message.

 

So true...

[BIGAL]

Another problem is if its 3D points joined together then its not a planar answer hence no hatch. We often have to use flatten once we realise the problem.

 

It would be nice if the error message gave you more clues. Will check the 2010 option.