topic Re: Hatch Pattern in Civil 3D Forum

Hatch Pattern

sanetdikkumbura1950 — Tue, 22 Apr 2025 06:56:05 GMT

I want hatch my pipe network this hatch pattern. where can I find this hatch pattern?

Re: Hatch Pattern

ianjchap — Tue, 22 Apr 2025 07:15:46 GMT

Hi @sanetdikkumbura1950,

Thats probably a linetype rather than a hatch.

Change your centerline line type to dashed, then in the plan tab tick the 'specify width' and the linetype will extend to the outer line of the pipe width.

Re: Hatch Pattern

sanetdikkumbura1950 — Tue, 22 Apr 2025 07:32:17 GMT

Thank you for the reply. I was hoping for a hatch pattern (solid and spaces).

Re: Hatch Pattern

mjung — Tue, 22 Apr 2025 15:38:46 GMT

Our pipe style utilizes a custom hatch pattern to mimic what you have shown in your example.

It's just a simple pattern definition that has been added to our ACAD.pat file:

*SDPIPE, Pipe Hatch
0, 0,0, 0,.05, .85,-.75

Re: Hatch Pattern

ianjchap — Thu, 24 Apr 2025 08:20:53 GMT

Hi @mjung,

Is this a Custom pattern? How would I insert this into a style?

Re: Hatch Pattern

mjung — Thu, 24 Apr 2025 16:19:25 GMT

Hi Ian,

Yes, it is a custom pattern that would need to be added to the acad.pat file or configure CAD to find a custom one.

Once the hatch is available configure your Pipe Style as shown in this image.

Re: Hatch Pattern

ianjchap — Fri, 25 Apr 2025 07:57:36 GMT

Is the Hatch Pattern created by you, or available somwhere?

Re: Hatch Pattern

mjung — Fri, 25 Apr 2025 15:26:38 GMT

You will need to open your Acad.pat file with a text editor and insert the following code:

*SDPIPE, Pipe Hatch
0, 0,0, 0,.05, .85,-.75

Or create a text file called sdpipe.pat with the code above and load it.

This article has more info: How to install custom hatch patterns in AutoCAD