Hatch NET pattern issue

[rengised]

Hi, please help me, I ah hatching big area, but every time i change the click to set new origin to the intersection line it becomes like this (see attachment) some lines are missing.

[eldon]

I can't really see the boundaries of your hatch area from your picture.

 

For a more meaningful response, could you please post a drawing containing only the troublesome areas. Thank you.

[rengised]

Hello, thanks for the reply. Please attached cad file for your reference.

Paving Pattern.dwgFetching info...

[eldon]

I don't know what the official explanation would be, but I think that you have got AutoCAD confused.

 

I think that hatching was never originally intended to show actual tiles, but was intended to flood an area with a simulation of the appearance. So the dimensions of the hatch NET, for example, is curious and you have found that you need to apply an irrational scale factor of 188.97638. This gives AutoCAD a computational task.

 

Then there is the spacing of the edges of the Grass Roads. If one sets the length precision to 6, then one sees that the spacing and widths of the Grass roads is not exact (3599.999999). This also gives AutoCAD a computational task. So combined with the previous, AutoCAD forgets where it is occasionally, hence the gaps. The difference in length by 0.000001 is enough to have a line or not.

 

What I have done in the accompanying picture is to first of all make the dimensions of the Grass roads a multiple of 600.00000000. Then I used a hatch pattern that I wrote. It gives a tile of 1 by 1 dimension, so is easy to scale up to 600 by 600 tile. This then seems to work.

 

Hatch pattern

*TILE11, tile 1 by 1
0, 0, 0, 0, 1 
90, 0, 0, 0, 1
*

 

 

[rengised]

Hello, thank you for your reply. this is exactly what I want to show in our drawing. BTW how to add thos custom pattern in my Autocad? Sorry I am not that good in cutomizing pattern. Thank you in advance.

[eldon]

I would refer you to the official AutoCAD support site. Good luck.

[rengised]

hello, i tried save as the one you sent as (.pat) there is an error as per the screenshot

[eldon]

As you appear to be saving this as a stand-alone file, the file name has to match exactly the first word in the first line of the pattern definition. In this case, it would be TILE11.pat.

 

Try that and see if it solves the problem.