Creating custom hatch pattern (.pat files)

[justin_yeung1 (justin yeung)]

Hi,

I just want to happily share in this community that I wrote a script for creating custom hatch patterns. I couldn’t find something similar so I decided to make one myself and hope it reaches whoever struggled similarly.

The script inputs any lines (not polylines nor curves) and outputs a .pat file that multiple CAD software read as hatch patterns.

More detailed descriptions, source code, instructions, and examples had been included in the GitHub link below.

Enjoy!

GitHub - Justin-Yeung/pat_writer: Grasshopper Script for Generating Custom Hatch...

[Tom_Newsom]

Looks great!

It still boggles my mind that the major CAD packages don’t have this functionality built in. Autocad still ships with the same acad.pat file since at least R14 (the earliest version I ever used), and the Help page for how to make your own patterns is still the same eldritch horror that it was back then.

[M_Thorez (Maxime Thorez)]

The AutoCAD help forum in general is a circle of hell on its own, also apparently the functionality isn’t available for AutoCAD LT

Personally I simply create a block of the pattern, then use the XCLIP command to fit it inside wherever I need to. Sadly, XCLIP is the one AutoCAD functionality that is not available in Rhino, despite being pretty much vital

[Japhy]

This has been a highly requested feature for a while now.

Rhino WIP Feature: Create Hatch patterns with Grasshopper

Note : This guide requires the Rhino 9 WIP. This is a work in progress meaning that it is meant for testing and should not be used for project critical production work. The Rhino 9 WIP is available to anyone that owns Rhino 8. This guide covers new Grasshopper hatch components to both create, edit and save hatch patterns. Rhino 9 also includes a new HatchPattern command in Rhino that can also work to create new hatch patterns. Basic Hatch Pattern Use The simplest of definitions to use Hatches…

[Tom_Newsom]

Unfortunately, Revit ignores Xclip boundaries in linked DWGs

[scottd (Scott Davidson)]

Custom Hatches can be handled in Rhino WIP two ways:

Rhino has a Hatch Pattern command that can create Hatches:

Rhino WIP Feature: Create New Hatch Pattern Command

Note : This guide requires the Rhino 9 WIP. This is a work in progress meaning that it is meant for testing and should not be used for project critical production work. The Rhino 9 WIP is available to anyone that owns Rhino 8. The new command HatchPattern is a command to create a new hatch pattern that is made up of a series of repeat tiles. [image] HatchPattern Command Options Start by creating a tile rectangle and the curves that make up the pattern. Add, Delete, Import - In this case us…

More control over exact hatch patterns can be done thru Grasshopper:

Rhino WIP Feature: Create Hatch patterns with Grasshopper

Note : This guide requires the Rhino 9 WIP. This is a work in progress meaning that it is meant for testing and should not be used for project critical production work. The Rhino 9 WIP is available to anyone that owns Rhino 8. This guide covers new Grasshopper hatch components to both create, edit and save hatch patterns. Rhino 9 also includes a new HatchPattern command in Rhino that can also work to create new hatch patterns. Basic Hatch Pattern Use The simplest of definitions to use Hatches…

Rhino 9 comes with 40 or so patterns. There are also many places to download PAT files to use:

Custom Hatch Patterns for Rhino [McNeel Wiki]

But none of these are like XClip. If a clipped drawing is wanted, then use the:

Rhino WIP Feature: Non-Rectangular Details

The Rhino 9 WIP now supports details with boundaries that can be made from any closed curve. This can be done with either the new SetDetailBorder command or by using the FromCurve option in the Detail command. [Non-Rectangular Details | New in Rhino 9 WIP] You can now have layouts with circular “zoomed in” details as shown below. [image] Model credit: Craig Maupin & Rhadiante Van de Voorde, Elemental Design Studio Not just circles Any closed curve can be used to define a detail…

[wim (Wim Dekeyser)]

Hi blu -

@blu_bluk

would it be possible for you to share a .gh for older Rhino versions (7)?

No. You’ll need Rhino 9 for this.
-wim