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Thread: Inverse Xref Clipping

  1. #1
    I could stop if I wanted to Merlin's Avatar
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    Question Inverse Xref Clipping

    Greetings!
    A quick query about x-ref clipping. I'm wanting to clip an xref BUT I want the inverse to remain.
    So when I make a clipping boundary I want the inside to disappear with the outside to remain. I used a workaround with this years ago with a polyline wrapping back around the outside with a marginally small gap between the returning lines to the outside. But this is slow and tedious drawing such a polyline.
    I think I heard that inverse clipping was available now. I'm currently using ver 2007 (because we had h-u-g-e problems with 2008 and 2009 makes the machine chug) Is it possible to do such a clip?
    John Mc

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    Default Re: Inverse Xref Clipping

    Not sure about 2007, in 2008:
    XCLIP
    select object
    New
    Invert clip - last option
    ...blah blah

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    Certifiable AUGI Addict irneb's Avatar
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    Default Re: Inverse Xref Clipping

    You're right ... it's only available from 2008 on. There's 2 approaches to do this in earlier versions:
    1. Make a copy of the XRef object @0,0. Then XClip one of them with a left-hand "C-like" closed polyline and the other with a right-hand. Basically making the 2 halfs of the surround.
    2. Make a convoluted closed polyline around the entire XRef and coming in doing the smaller "hole" before returning out to the bigger "border" close but not exactly on the line coming in.
    See attached for a simple example of the polylines in the 2 options.
    Attached Images Attached Images
    Knowledge is proportional to experience, but wisdom is inversely proportional to ego!
    My little bit of "wisdom": Hind-sight is useless, unless used to improve the next forethought!

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    I could stop if I wanted to Merlin's Avatar
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    Smile Re: Inverse Xref Clipping

    OK...Thanks for that, Gang

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    Default Re: Inverse Xref Clipping

    I'm a little new to the 2008 version. Is it possible clip an xref with an inverted clip AND a normal clip? I have an xref file that contains all of a jobsites embedded conduit, several hundred acres in size. I only want to see an area local to where I'm working but I would also like to use an inverted clip to clip out a piece that obstructs the area that I'm working on.

    Possible?

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    Default Re: Inverse Xref Clipping

    i dont think its possible to have two clips
    Christopher T. Cowgill, P.E.
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    Default Re: Inverse Xref Clipping

    You can do it with some work.

    Draw in the clip boundaries you want. Then draw two parallel lines very close to each other. Trim appropriately. XCLIP and Select Polyline as boundary.

    See attached.
    Attached Images Attached Images

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    Default Re: Inverse Xref Clipping

    There's 2 other options:
    • Place a wipeout over the internal "hole" you want to cut out; or
    • After doing the external xclip, create a block of the clipped xref, then xclip the block with the hole.
    Knowledge is proportional to experience, but wisdom is inversely proportional to ego!
    My little bit of "wisdom": Hind-sight is useless, unless used to improve the next forethought!

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