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itspradnya1-Visitor
1-Visitor
August 21, 2006
Question

Persistent tag for Vertex

  • August 21, 2006
  • 2 replies
  • 755 views
Hi,
Can we have unique identification for Vertex in ProE like we have Persistent Id for ProEdge / ProSurface etc?

What is the work around if we want to have a unique set of vertices obtained from a list of Edges which share common vertices?

Thanks in advance,

Regards,
Pradnya

    2 replies

    P
    pwilliams-313-Aquamarine
    13-Aquamarine
    August 21, 2006
    Pradnya,
    Are you trying to compile an array of uniqe vertices? In other words if
    you had a rectangle with edges A, B, C, D and vertices 1, 2, 3, 4. When
    you visit edges and vertices you would get an array like this:

    (1, 2), (2, 3), (3, 4), (4, 1)

    And you want:

    1, 2, 3, 4

    Is this correct?

    If so then you just have to do it programmatically. Pro/TOOLKIT does
    not contain a function that will give you a unique set of vertices.

    Patrick Williams
    Sr. Application Engineer
    Steelcase Inc.
    P
    pwilliams-313-Aquamarine
    13-Aquamarine
    August 21, 2006
    Pradnya,

    It depends on what you are looking for.



    1. If your program wants the endpoints then call this function
    twice with t=0 and t=1:

    a. ProEdgeXyzdataEval(edge, 0, xyzPoint, deriv1, deriv2,
    dir);
    b. ProEdgeXyzdataEval(edge, 1, xyzPoint, deriv1, deriv2,
    dir);

    2. If your program wants the points on the edge according to t then
    you need to call ProEdgeXyzdataEval from t=0 to t=1.0. Each iteration
    through the loop will increment t by some factor. You have to determine
    the factor yourself in the program.



    For more information on this look in the API Wizard under User's
    Guide->Geometry->Evaluating Geometry->Evaluating Faces, Edges, and
    Curves. Basically you are asking Pro what the point is at t=n for the
    specified edge. You can pass null for the derivatives and direction if
    you are not interested in them.



    Patrick Williams

    Sr. Application Engineer

    Steelcase Inc.
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