By James Philip I was asked recently to create a Flemish bond hatch pattern. My immediate response was that if you search the internet you will find one that already exists and I did. See Fig 1: - Fig 1 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. Below is an explanation of how I did it. The file that I found had brick sizes of 215 x 65 and 102.5 x 65 and a 10mm mortar thickness. To edit the.pat, you open it in Notepad. The file looks like this: -.HBFLEMET,Brickworkflemishbond Free patterns from 0,0,10,0,150,215,-122.5 0,0,75,0,150,215,-122.5 0,225,10,0,150,102.5,-235 0,225,75,0,150,102.5,-235 90,0,10,150,337.5,65,-85 90,215,10,150,337.5,65,-85 90,225,10,150,337.5,65,-85 90,327.5,10,150,337.5,65,-85 0,168.8,85,0,150,215,-122.5 0,168.8,150,0,150,215,-122.5 90,168.8,85,150,337.5,65,-85 90,46.3,85,150,337.5,65,-85 0,56.3,85,0,150,102.5,-235 0,56.3,150,0,150,102.5,-235 90,56.3,85,150,337.5,65,-85 90,158.8,85,150,337.5,65,-85 Each line of code represents a line in the hatch pattern.
Quick Tip: How to Make a Hatch Transparent. Send to Front, Send to Back or Transparent? Depending on what you want your final output to look like, you will want to choose accordingly. A transparent hatch is most readily experienced when using the Solid hatch pattern, although any pattern can be used.
To fully understand this I have illustrated each character set. See Fig 2 To understand and verify the offset distances you can create a dimensioned layout of the existing hatch pattern. See Fig 3 Fig 3 My new hatch pattern required brick sizes of 240 x 50 and 115 x 50 and a mortar thickness of 15mm. The resulting dimensioned layout is as follows. See Fig 4 Fig 4 The edited.pat file then looks like this.JP,Brickworkflemishbond 0,0,15,0,130,240,-145 0,0,65,0,130,240,-145 0,255,15,0,130,115,-270 0,255,65,0,130,115,-270 90,0,15,130,385,50,-80 90,240,15,130,385,50,-80 90,255,15,130,385,50,-80 90,370,15,130,385,50,-80 0,192.5,80,0,130,240,-145 0,192.5,130,0,130,240,-145 90,192.5,80,130,385,50,-80 90,47.5,80,130,385,50,-80 0,62.5,80,0,130,115,-270 0,62.5,130,0,130,115,-270 90,62.5,80,130,385,50,-80 90,177.5,80,130,385,50,-80 This should be saved to its own.pat file (e.g.
Flembond.pat) and placed in the support folder where the acad.pat and acadiso.pat are located. Do not edit these files (acad.pat or acadiso.pat) and add the code to them. Creating the patterns in separate files ensures that if the software is re-installed these files are not over written.
How to install hatch autocad to mac osx? AutoCAD for Mac OSX offers to install two libraries the 365 Hatch Pattern and the Wood and Stone Hatch Patterns. This too is easy to install just follow the instruction given below: Installing Wood and Stone Library: 1. First, you need to copy the Acad.
Pat file and browse “/Library/Application Support/Autodesk/roaming/AutoCAD 2011/R18.1/enu/Support/” 2. Locate the Acad. Pat file and rename it as Acad-pat. You need to copy the original arcade. Pat file into folders that you browse.
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Installing 365 Hatch Pattern Library: 1. Create a new folder under (/Library/Application Support/Autodesk/roaming/AutoCAD 2011/R18.1/enu/Support/Hatch” then save the 365 Hatch Pattern library in this folder. After setting up the hatch patterns, you can now use it by choosing it in the Custom Tab which can be seen in Hatch Pattern Dialog.