Every architect and designer has been there. You find the perfect texture for your project—a intricate herringbone tile, a custom geometric lattice, or a specific parquet flooring. You have the design as a vector line drawing (DXF), but when you try to hatch it in AutoCAD or Revit, you hit a wall.
For simple patterns (like a stack of bricks or diagonal lines), manual conversion is possible. A user looks at the coordinates in the DXF and types the corresponding angle and offset values into a text file. This is impractical for complex organic shapes.
If you are dealing with basic geometric patterns like grids, bricks, or parallel lines, you can write or edit a PAT file manually using a text editor like Notepad. Deciphering PAT Code Syntax A standard PAT file header and line entry look like this:
Struggles with arcs and splines. Best for orthogonal line work (floor tiles, ceiling grids, gratings). dxf to pat
HatchKit is the industry standard for hatch pattern editing and conversion. It features a robust graphical interface where you can import DXF files, visually adjust the repeat grid, and export directly to clean PAT files compatible with AutoCAD and Revit. 2. Express Tools (SuperHatch)
AutoCAD has a built-in tool called SUPERHATCH (Express Tools). It is not a true DXF-to-PAT converter, but a workaround.
This comprehensive guide covers everything you need to know to successfully convert DXF data into custom hatch patterns. Understanding the Formats: DXF vs. PAT Every architect and designer has been there
A PAT file containing a complex logo can be 50kb or more. That is still significantly smaller than a 5mb DXF block.
HatchKit is a Windows-only third-party tool specifically designed for this task. It is the industry benchmark.
: Beyond the specialized tools, other software can also assist with DXF to PAT conversion. For instance, QCAD supports PAT files and may offer methods for creating them, while ABViewer is a versatile CAD tool that can work with drawings and potentially aid in the preparation of DXF files for conversion. For simple patterns (like a stack of bricks
Several free online utilities allow you to upload a clean DXF file and instantly download a PAT file. These are great for quick, simple linear patterns, but they often struggle with complex, dense interlocking designs. 4. Custom LISP Routines (e.g., Draw2Pat or CAD2Pat)
In AutoCAD, type OPTIONS , navigate to the Files tab, and expand Support File Search Path . Note the folder directory listed there.