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Thread: Custom Hatch Pattern - Where did I go wrong??

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    Default Custom Hatch Pattern - Where did I go wrong??

    Hey there! I'm working on a custom hatch pattern for a co-worker who is working with a client who wants all the floor patterns to appears identical to how they'll be installed. Unfortunately, the patterns are all of irregularly sized tiles, so I've been writing a lot of the .pat files myself. I'm not expert by any means, but I'm not too shabby with a little trial-and-error for the orthogonal patterns.

    Anyway, I'm trying to write a pattern for a uniquely sized tile to be arranged in a chevron pattern (see design intent image), but I cannot for the life of me figure out where I'm going wrong with the hatch pattern. Would someone be willing to take a look at the .pat file and see where I'm off? As you can see from one of the images below, things just don't quite line up from left to right. My assumption is that it has something to do with the the fact that the module of the tile is so wonky, but I can't figure out how to solve the issue.

    A solution and (more importantly...) how you got there would be greatly appreciated! Thank you!
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    I could stop if I wanted to hugh.69031's Avatar
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    Default Re: Custom Hatch Pattern - Where did I go wrong??

    Hi Brad,

    try this

    ;-------------------------------------------------------------------------------
    ; Written by HatchKitCS Trial
    ; HatchKitCS Trial (c)1990-2016 Cadro Pty Ltd
    ; www.hatchkit.com.au/
    ;-------------------------------------------------------------------------------
    ;%VERSION=3.0
    ;%UNITS=INCH
    *3-75 X 21_CHEVRON_HATCHKIT
    ;%TYPE=MODEL
    135,0,0,126.75,-0.75,21,-189
    45,0,0,126.75,0.75,21,-189
    90,0,0,0,14.8492424049


    The tile repetitions do not immediately line up so a longer repetition interval is required.

    HatchKit calculated the above offsets and repetition distances from a template I drew in it as follows:

    • Add lines from 0,0 to 21,0 and from 0,0 to 0,21
    • Set arrangement vectors to 21,-21 and 3.75,3.75
    • Rotate the above through 45 degrees
    • Add a layer
    • Adjust layer blue arrangement to (polar) 21<45
    • Add infinite line through 0,0


    Save to Revit format file.

    hth,
    Hugh Adamson
    Last edited by hugh.69031; 2017-07-12 at 05:36 AM.

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