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Thread: Slope arrows

  1. #1
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    Default Slope arrows

    Slope arrows are pointing the direction we pick in stead of the direction the slope is on a surface.

    Any ideas how to make it work right.

  2. #2
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    Default Re: Slope arrows

    I assume you are talking about surface labels here. Anyway, here is how you do it:

    http://forums.augi.com/showthread.php?t=71842

  3. #3
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    Default Re: Slope arrows

    I have a problem putting in that value in the rotation angle. We get an invalid input.

    See the attached image.

    Am I missing something?
    Attached Images Attached Images

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    Default Re: Slope arrows

    It does not appear that you have defined the expression.

    1. Start by right clicking on "Expressions" and selecting "New..."
    2. Enter the name "Grade Check"
    3. Enter a description, if desired
    4. Enter "IF({General Segment Grade}<0,0,pi)" as the expression
    5. Pick "OK"
    6. Open up the label properties again
    7. For the direction arrow component you should be able to pick the new grade check expression in the rotation angle.

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    Default Re: Slope arrows

    This might help (look at the entry from 12/19/2007):

    http://fredbobchris.googlepages.com/...tblockoftheday

  6. #6
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    Default Re: Slope arrows

    I get an undefined property. How do I fix this?

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    Default Re: Slope arrows

    When I enter the IF statement, I get a parse error. I've tried different words, but nothing works. Any idease?

    Civil 3D 2012

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    Default Re: Slope arrows

    Yes understand that the label (arrow) direction is counter intuitive, and pick you label points accordingly.
    If you are using TWO point labels.
    (and that rotation value is an EXPRESSION created under the label style not input directly as the roation value in the style.
    So you must creat the expression, then use that expression in the style.

  9. #9
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    Default Re: Slope arrows

    Are you using the f(x) button in the Expression builder to 'enter' your IF statement?

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