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Hello guys, need some advice on creating a custom hatch pattern consisting on circles.
Now I know one way of making custom hatch through making a notepad file and saving as .pat file and then importing in Autocad. But all the examples I saw online show pattern for only lines and not circles. Does anybody know how to make such a pattern?
I have also read it could be done using Autolisp but I'm not much familiar with it. Though I'm ready to learn if it is the better option.
Looking forward to your valuable suggestions.
Thanks.
Hello guys, need some advice on creating a custom hatch pattern consisting on circles.
Now I know one way of making custom hatch through making a notepad file and saving as .pat file and then importing in Autocad. But all the examples I saw online show pattern for only lines and not circles. Does anybody know how to make such a pattern?
I have also read it could be done using Autolisp but I'm not much familiar with it. Though I'm ready to learn if it is the better option.
Looking forward to your valuable suggestions.
Thanks.
It can't be of true circles as a Hatch pattern -- they consist only of lines and line segments. But if a 24-sided polygon is "circular" enough for your purposes, it's likely that the open-centered pattern in CirclesTriGrid.pat, available >here<, could be re-written with proportions between radius and spacing like what you're after. Since those proportions are different in your two diagrams, each would need to be its own pattern definition -- if you can work with the same proportion between "circle" radius and spacing, you can just use the same pattern at different scale factors.
Kent Cooper, AIA 
It can't be of true circles as a Hatch pattern -- they consist only of lines and line segments. But if a 24-sided polygon is "circular" enough for your purposes, it's likely that the open-centered pattern in CirclesTriGrid.pat, available >here<, could be re-written with proportions between radius and spacing like what you're after. Since those proportions are different in your two diagrams, each would need to be its own pattern definition -- if you can work with the same proportion between "circle" radius and spacing, you can just use the same pattern at different scale factors.
Kent Cooper, AIA
@tilakpatel531 wrote:
…. I am going to use these patterns frequently in a lot of different drawings and so I need a pattern file which I can apply just like any other default pattern. Is it possible to use the custom pattern through Superhatch in different files?
I don't think [but you can confirm easily enough -- I don't have AutoCAD up at the moment] that SuperHatch remembers options or stores what would be the equivalent of "pattern names" or files that could be used again in different drawings, but you would need to make all the choices again in each. You would at least be able to make a drawing of a repeatable rectangular portion of the pattern you want, of Circle(s) and Arc(s), and store that as a drawing that you could bring in as a Block in different drawings to use in SuperHatch. But if "the custom pattern" refers to any of the CirclesTriGrid patterns [or a similar one with different proportions], and that's circular enough for you, then you don't need SuperHatch.
Kent Cooper, AIA
@tilakpatel531 wrote:
…. I am going to use these patterns frequently in a lot of different drawings and so I need a pattern file which I can apply just like any other default pattern. Is it possible to use the custom pattern through Superhatch in different files?
I don't think [but you can confirm easily enough -- I don't have AutoCAD up at the moment] that SuperHatch remembers options or stores what would be the equivalent of "pattern names" or files that could be used again in different drawings, but you would need to make all the choices again in each. You would at least be able to make a drawing of a repeatable rectangular portion of the pattern you want, of Circle(s) and Arc(s), and store that as a drawing that you could bring in as a Block in different drawings to use in SuperHatch. But if "the custom pattern" refers to any of the CirclesTriGrid patterns [or a similar one with different proportions], and that's circular enough for you, then you don't need SuperHatch.
Kent Cooper, AIA
Accepted solution
@tilakpatel531 wrote:
.... I also found this awesome Autolisp tool .... Does anyone know how to use it? I'm particularly looking to edit the size of the square window inside which we draw the pattern.
There are pretty detailed instructions right on the page in your link.
If that requires a square piece to work with, it will never work with your triangular pattern -- no distance is going to meet a horizontal circle spacing and a vertical row spacing, because of the non-orthogonal angle.
But a Block of a rectangular portion between circle centers, like just the yellow parts in this:
works pretty well in SuperHatch.
Kent Cooper, AIA
@tilakpatel531 wrote:
.... I also found this awesome Autolisp tool .... Does anyone know how to use it? I'm particularly looking to edit the size of the square window inside which we draw the pattern.
There are pretty detailed instructions right on the page in your link.
If that requires a square piece to work with, it will never work with your triangular pattern -- no distance is going to meet a horizontal circle spacing and a vertical row spacing, because of the non-orthogonal angle.
But a Block of a rectangular portion between circle centers, like just the yellow parts in this:
works pretty well in SuperHatch.
Kent Cooper, AIA
@Kent1Cooper @R_Tweed thanks to both of you. i combined both of your tricks and the end result is perfect.
since it is a repetitive pattern, instead of making one single instance, we can make something more than "one" to fill the square. thanks to everyone for your inputs and time. gotta love this community!
@Kent1Cooper @R_Tweed thanks to both of you. i combined both of your tricks and the end result is perfect.
since it is a repetitive pattern, instead of making one single instance, we can make something more than "one" to fill the square. thanks to everyone for your inputs and time. gotta love this community!
I do notice, however, that in order to make an actually square piece, you have had to change the spacing between the circles in the diagonal directions compared to the spacing in the horizontal direction, which also means that it's not an equilateral-triangle arrangement [the diagonal angle between centers is not 60 degrees]. Obviously if that works for you, go for it, but it is different from your original images.
Kent Cooper, AIA
I do notice, however, that in order to make an actually square piece, you have had to change the spacing between the circles in the diagonal directions compared to the spacing in the horizontal direction, which also means that it's not an equilateral-triangle arrangement [the diagonal angle between centers is not 60 degrees]. Obviously if that works for you, go for it, but it is different from your original images.
Kent Cooper, AIA
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