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Hi @jerome,
I see that you are visiting as a new member to the AutoCAD forum. Welcome to the Autodesk Community!
You can certainly hatch boundaries that are not continuous lines. What version of AutoCAD are you using? When I do a hatch it works fine but it might be that I have LTGAPSELECTION turned on (available from 2017) although it seems to work fine in 2016 too.
Please select the Accept as Solution button if my post solves your issue or answers your question.
Hi @jerome,
I see that you are visiting as a new member to the AutoCAD forum. Welcome to the Autodesk Community!
You can certainly hatch boundaries that are not continuous lines. What version of AutoCAD are you using? When I do a hatch it works fine but it might be that I have LTGAPSELECTION turned on (available from 2017) although it seems to work fine in 2016 too.
Please select the Accept as Solution button if my post solves your issue or answers your question.
Accepted solution
Try:
A) The DASH pattern.
B) Assigning the Hidden [or whatever] linetype to an ANSI31 [or other] Hatch Pattern in the Properties palette or with CHPROP.
C) Hatching with ANSI31 [or other] on a Layer that has a Hidden [or whatever] linetype assigned.
The advantage of A), if that patterns looks right to you, is that with B) or C), you get irregularities in alignment of the dashes with irregular boundary shapes:
A pattern similar to DASH with different ratio between dash and gap sizes, and/or with the dashes aligned in both directions rather than staggered halfway from one line to the next, could easily be defined.
Kent Cooper, AIA 
Try:
A) The DASH pattern.
B) Assigning the Hidden [or whatever] linetype to an ANSI31 [or other] Hatch Pattern in the Properties palette or with CHPROP.
C) Hatching with ANSI31 [or other] on a Layer that has a Hidden [or whatever] linetype assigned.
The advantage of A), if that patterns looks right to you, is that with B) or C), you get irregularities in alignment of the dashes with irregular boundary shapes:
A pattern similar to DASH with different ratio between dash and gap sizes, and/or with the dashes aligned in both directions rather than staggered halfway from one line to the next, could easily be defined.
Kent Cooper, AIA
Thanks, Kent.
having [ANS131] on a hidden layer doesn't seem to work
(sorry for the huge .jpg)
I didn't think to use 'dash' at 45deg and this will work well for my purposes so, thanks again for another solution.
Thanks, Kent.
having [ANS131] on a hidden layer doesn't seem to work
(sorry for the huge .jpg)
I didn't think to use 'dash' at 45deg and this will work well for my purposes so, thanks again for another solution.
@Anonymous wrote:
....
having [ANS131] on a hidden layer doesn't seem to work
....
That may be a version-dependent difference.
Kent Cooper, AIA
@Anonymous wrote:
....
having [ANS131] on a hidden layer doesn't seem to work
....
That may be a version-dependent difference.
Kent Cooper, AIA
@john.vellek wrote:
.... @Kent1Cooper, which flavor of AutoCAD did you test in? I am curious why the hatch render is different in that vertical. ....
No vertical -- vanilla AutoCAD 2016. EDIT: But since I'm currently at a different location also with vanilla Acad2016, I tried it again, and it didn't work. I don't know what could be different about the setups that would explain that. Could the difference between Windows 7 [in which it worked] and Windows 10 [didn't] possibly be the reason?
Kent Cooper, AIA
@john.vellek wrote:
.... @Kent1Cooper, which flavor of AutoCAD did you test in? I am curious why the hatch render is different in that vertical. ....
No vertical -- vanilla AutoCAD 2016. EDIT: But since I'm currently at a different location also with vanilla Acad2016, I tried it again, and it didn't work. I don't know what could be different about the setups that would explain that. Could the difference between Windows 7 [in which it worked] and Windows 10 [didn't] possibly be the reason?
Kent Cooper, AIA
Accepted solution
@Kent1Cooper wrote:
.... I don't know what could be different about the setups that would explain that. ....
FOUND IT! There's a System Variable, called [obviously enough] HPLINETYPE, which if set to 1 or ON, will use non-continuous linetypes in Hatch Patterns. That's described as "legacy behavior" in Help, so I assume it just works that way all the time in older versions, but I don't know in which version the option was introduced.
In a Hatch Pattern that is not of continuous lines, the linetype appears to be applied onto each pen-down segment within the Hatch, separately, provided the scale of the Hatch relates to the linetype scale in such a way as to allow that.
Also, it works even with text- or shape-embedded non-continuous linetypes, not just those made of dashes/dots/gaps.
Kent Cooper, AIA
@Kent1Cooper wrote:
.... I don't know what could be different about the setups that would explain that. ....
FOUND IT! There's a System Variable, called [obviously enough] HPLINETYPE, which if set to 1 or ON, will use non-continuous linetypes in Hatch Patterns. That's described as "legacy behavior" in Help, so I assume it just works that way all the time in older versions, but I don't know in which version the option was introduced.
In a Hatch Pattern that is not of continuous lines, the linetype appears to be applied onto each pen-down segment within the Hatch, separately, provided the scale of the Hatch relates to the linetype scale in such a way as to allow that.
Also, it works even with text- or shape-embedded non-continuous linetypes, not just those made of dashes/dots/gaps.
Kent Cooper, AIA
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