topic Re: Custom Hatch Pattern in AutoCAD Forum

Custom Hatch Pattern

riosdesigns — Mon, 21 Sep 2015 21:08:47 GMT

I am trying to get a custom hatch pattern made. Can anyone help. Here is a pic of what I want it to look like.

Re: Custom Hatch Pattern

Anonymous — Mon, 21 Sep 2015 21:28:36 GMT

@riosdesigns wrote:
I am trying to get a custom hatch pattern made. Can anyone help. Here is a pic of what I want it to look like.

Would SuperHatch be of help?

Re: Custom Hatch Pattern

Patchy — Mon, 21 Sep 2015 21:50:58 GMT

The last time you asked, there was a link to get it.

http://forums.autodesk.com/t5/autocad-2013-2014-2015-2016/create-custom-hatch/m-p/5818434#M95828

Re: Custom Hatch Pattern

riosdesigns — Mon, 21 Sep 2015 23:41:23 GMT

The tiles are gereric. I am trying to get this exact look. Is there any way to do this?

Re: Custom Hatch Pattern

riosdesigns — Mon, 21 Sep 2015 23:43:09 GMT

I tried but the file got to big. It would be a lot easier to find a way to hatch this exact look. But thanks anyway.

Re: Custom Hatch Pattern

hugha — Tue, 22 Sep 2015 01:55:42 GMT

HatchKit.

Save as DXF.
Import to HatchKit
Delete redundant copies
Arrange pattern spacing.
Save to AutoCAD pattern format.

hth,

Hugh Adamson

www.hatchkit.com.au

Re: Custom Hatch Pattern

Kent1Cooper — Tue, 22 Sep 2015 14:07:59 GMT

That clearly comes from a Hatch pattern, because the angled elements extend to meet another at the same angle in exactly the same way that hatch elements do, and surely if you were just drawing it, the "curves" would be Arc objects instead of segmented into Lines, or if they were Lines they'd be more regular-polygonal about it [the irregularity of them suggests the compromises needed to make a Hatch pattern repeat correctly].

I could work it out, but do you have a drawing with it as a Hatch rather than in pieces? I think there are routines you can Search for that can extract a definition from a Hatch object. Or do you have contact with whoever drew it, to ask whether they can send you the pattern definition?

Re: Custom Hatch Pattern

riosdesigns — Tue, 22 Sep 2015 15:45:53 GMT

Hugh,

I will try this. Is the website trustworthy? Program is $70.00. Will it really work?

Re: Custom Hatch Pattern

riosdesigns — Tue, 22 Sep 2015 15:51:28 GMT

Kent,

It is an exploded and slightly modified hatch pattern. The hatch pattern is called "Spanish1". I have included it. The only difference are the tiles that have an upside down 'U' shape are flattened to give it more of a Pan Romano style look. This is what I am trying to achieve.

Thanks,

Gabriel

Re: Custom Hatch Pattern

hugha — Tue, 22 Sep 2015 16:13:14 GMT

Gabriel,
there is a free demonstration version that you are most welcome to download and try on our website.

I'm confident that our website is trustworthy and that HatchKit does really work - we have been improving and extending it since 1988.

Re: Custom Hatch Pattern

Kent1Cooper — Tue, 22 Sep 2015 17:22:40 GMT

@riosdesigns wrote:

.... The hatch pattern is called "Spanish1". I have included it. The only difference are the tiles that have an upside down 'U' shape are flattened to give it more of a Pan Romano style look. This is what I am trying to achieve.

....

A comparatively simple adjustment:

*spanish2,Spanish tile roofing [flat underlay tiles]
0,.25,.125,0,1,.125,-1.125,.125,-.625
0,.75,.625,0,1,.375,-1.625
0,.75,.75,0,1,.375,-.4166666667,.7916666666,-.4166666667
;; changed on-off-lengths in line above
0,1.5208333333,.875,0,1,.8333333333,-1.1666666667
;; changed starting X and on-off-lengths in line above
90,.25,.125,1,2,.125,-.875
90,.375,.125,1,2,.125,-.875
90,1.5,.125,1,2,.125,-.875
90,1.625,.125,1,2,.125,-.875
45,.375,.5,.7071067812,.7071067812,.1767767,-2.651650425
135,1.5,.5,.7071067812,-.7071067812,.1767767,-2.651650425
26.56505118,.5,.5,.4472135955,.894427191,.2795085,-1.956559477
26.56505118,.5,.625,.4472135955,.894427191,.2795085,-1.956559477
;; 26.56505118,.125,.75,.4472135955,.894427191,.2541,-1.981967977 deleted
;; 26.56505118,.125,.875,.4472135955,.894427191,.2795085,-1.956559477 deleted
63.43494882,.25,.25,.894427191,.4472135955,.2795085,-4.192627455
63.43494882,.375,.25,.894427191,.4472135955,.2795085,-4.192627455
116.56505118,1.5,.25,.894427191,-.4472135955,.2795085,-4.192627455
116.56505118,1.625,.25,.894427191,-.4472135955,.2795085,-4.192627455
153.43494882,1.375,.5,.4472135955,-.894427191,.2795085,-1.956559477
153.43494882,1.375,.625,.4472135955,-.894427191,.2795085,-1.956559477
;; 153.43494882,1.75,.75,.4472135955,-.894427191,.2541,-1.981967977 deleted
;; 153.43494882,1.75,.875,.4472135955,-.894427191,.2795085,-1.956559477 deleted
80.537677792,.25,.25,.9863939238,.1643989873,1.140518,-11.02500706
99.462322208,1.625,.25,.9863939238,-.1643989873,1.140518,-11.02500706

Re: Custom Hatch Pattern

Patchy — Tue, 22 Sep 2015 17:05:40 GMT

Superman Kent1Cooper.

Re: Custom Hatch Pattern

Kent1Cooper — Tue, 22 Sep 2015 17:29:49 GMT

Thank you, Patchy. It's a little unfortunate, I think, that the pattern is defined at an unrealistic size, so the OP needs to use it at a scale factor of 6 to get the size in their sample drawing. I would have defined it so that it could be used at a scale factor of 1, but maybe there is no "standard size" for that kind of thing. [I also changed some X-offset 2's to 0's in the 0-direction line specifications, because they didn't need to be 2's, but they could remain 2's without affecting the results.]

Re: Custom Hatch Pattern

riosdesigns — Tue, 22 Sep 2015 20:06:21 GMT

Kent,

Thank you so much. Stupid question, how do you install hatch pattern?

Re: Custom Hatch Pattern

Patchy — Tue, 22 Sep 2015 20:21:37 GMT

Kent as logged out, so here is how:

Copy and paste into a text file, then rename from .txt to .pat

Put the .pat file into a place autocad has a path (I use Support Folder in Autocad)

Re: Custom Hatch Pattern

riosdesigns — Tue, 22 Sep 2015 21:00:27 GMT

It Worked!! So happy! Thank you Patchy!!

Re: Custom Hatch Pattern

Kent1Cooper — Wed, 23 Sep 2015 15:57:52 GMT

To refine a little:

For future reference [already okay in this one], a .pat file for selection in the Custom list in the Hatch dialog box may contain only one pattern, and its file name must be the same as the pattern name. Alternatively, you could put the code into your ACAD.pat file -- just make sure the file ends with an empty line, not with the last line of code content.

You can eliminate those lines that start with semicolons [just my commentary].