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  1. #1
    Join Date
    Jul 2019
    Posts
    3

    Default Need a help in catia surface

    Hello All,

    Capture.JPGCapture2.JPG


    Created a outer profile. How to create center axis passing through form all the profile.

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  2. #2
    Join Date
    Jul 2006
    Posts
    1,679

    Default

    Is each profile a circle?

  3. #3
    Join Date
    Jul 2019
    Posts
    3

    Default

    profile is not circle. its uneven profile. Example; the contour of bone at different plane.

  4. #4
    Join Date
    Jul 2019
    Posts
    26

    Default

    Circle or not - create a power copy. Fill each "circle" with Fill operation. Then plant a "Point on Surface" with the coordinates 0 - they should land more or less in the center of the circle as the circles appear to be very irregular. Then connect the points. If the spline becomes very twisted you can reduce the number of points.

    Przechwytywanie.jpg

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  5. #5
    Join Date
    Jul 2019
    Posts
    3

    Default

    Quote Originally Posted by Bouta View Post
    Circle or not - create a power copy. Fill each "circle" with Fill operation. Then plant a "Point on Surface" with the coordinates 0 - they should land more or less in the center of the circle as the circles appear to be very irregular. Then connect the points. If the spline becomes very twisted you can reduce the number of points.

    Przechwytywanie.jpg
    Thank you very much. It works !!!

  6. #6

    Default

    Bouta +1
    Great idea, it will take a bit of time, but it will work 100% sure

  7. #7
    Join Date
    Jul 2019
    Posts
    26

    Default

    Quote Originally Posted by costinruja View Post
    Alternatively, you can also make a powercopy using a point contructor formula. This approach will give you the exact center of gravity for each (irregular profile).

    centerofgravity(`Geometrical Set.1\Sketch.1` )

    Attachment 2269
    Attachment 2270
    This is a very elegant approach but I can't understand what does the "centerofgravity()" formula result in? Where do you put that formula? Do I need to pull out the X, Y and Z coordinates from the center of gravity formula accordingly? Can you put more screenshots? Thanks.

  8. #8
    Join Date
    Mar 2017
    Posts
    2

    Default

    The idea is that you can define geometries (point, line...) as parameters and assign them a formula. The output of this so called parameter is a geometrical entity (point, center of gravity in your case).

    Capture.jpg

    You can see in the box for formula definition the required inputs and outputs.

    Capture_2.jpg
    Last edited by costinruja; August 11th, 2019 at 08:34 PM.

 

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