Stop manually recreating complex hatch patterns. Our online DWG to PAT converter allows you to upload any AutoCAD drawing file (DWG) and instantly export a standard .pat hatch pattern file ready for use in AutoCAD, BricsCAD, or DraftSight.
*MyPattern, Description 45, 0,0, 0,10
PAT files operate on a "seed" concept. The converter analyzes a bounded area of your DWG, identifies the vectors within that bounding box, and writes a script that repeats that block infinitely. If your DWG contains overlapping lines, open polylines, or tiny gaps, the PAT definition will fail inside AutoCAD (resulting in a "Hatch pattern not valid" error). dwg to pat file converter online