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Save the file by giving filename as filename.pat and save it to your AutoCAD 2009 support directory ( /program files/AutoCAD2009/Support). The optional dash pattern is for specifying dashed or dotted line type. The first field of the code is the inclination angle of the hatch line, origin-x and origin-y is the starting point of first hatch line, x-offset and y-offset defines spacing dimensions between the hatch lines. The syntax of the rest of the lines of the file will be Angle of line, origin-x, origin-y, x-offset, y-offset, The syntax of the first line of your hatch pattern file will be *filename, description

Creating the patterns in separate files ensures that if the software is re-installed these files are not over written.Steps for Creating a Custom AutoCAD 2009 Hatch Pattern File Flembond.pat) and placed in the support folder where the acad.pat and acadiso.pat are located.ĭo not edit these files (acad.pat or acadiso.pat) and add the code to them. This should be saved to its own *.pat file (e.g. The edited *.pat file then looks like this The resulting dimensioned layout is as follows. My new hatch pattern required brick sizes of 240 x 50 and 115 x 50 and a mortar thickness of 15mm. To understand and verify the offset distances you can create a dimensioned layout of the existing hatch pattern. To fully understand this I have illustrated each character set.

*HBFLEMET,Brickworkflemishbond Free patterns from Įach line of code represents a line in the hatch pattern. To edit the *.pat, you open it in Notepad. The file that I found had brick sizes of 215 x 65 and 102.5 x 65 and a 10mm mortar thickness. I was then told that they wanted specific brick sizes, so I replied that you can just edit the file to represent the brick size you require. My immediate response was that if you search the internet you will find one that already exists and I did. I was asked recently to create a Flemish bond hatch pattern.