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CHASEONHO18-Opal
18-Opal
Nov 6, 2019 10:27 AM UTC
Solved

Ask to share ideas to collect holes

Hello,

 

I am configuring an algorithm to collect holes from a solid model.
If ProSurfacedataGet returns 2, it is determined to be a hole.

Q56.png
In the case of the slot, there is no sense of how to deal with it.

The argument we use to identify the hole is a solid model, surface.

 

Can anyone share a good idea to identify the hole in the case of a slot?

 

Thanks.

 

Warm Regards,

SeonHo Cha

sully7Answer
14-Alexandrite
Nov 6, 2019 4:18 PM UTC

One method we've used in the past (its a bit cumbersome, but it works) is to use:

  • ProSolidSurfaceVisit - to loop through the surfaces on the PRT, followed by
  • ProSurfaceContourVisit - to loop through the contours on the surface, followed by
  • ProContourEdgeVisit - to find all edges in the contour

If you loop through all of these items, you can use the appropriate data methods (such as ProContourdataGet and ProEdgeDataGet) to help determine what kind of edges you have. From there, its pretty easy to determine what a "slot" is by comparing # of edges in the contour, + the types, lengths, and radii of the edges.

 

One nice thing about this method too, as opposed to using ProHole methods (etc), is that it usually works pretty well on imported or non-native geometry as well. 

 

Hope this helps!

 

James Sullivan

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6 replies

sully714-AlexandriteAnswer
14-Alexandrite
Nov 6, 2019 4:18 PM UTC

One method we've used in the past (its a bit cumbersome, but it works) is to use:

  • ProSolidSurfaceVisit - to loop through the surfaces on the PRT, followed by
  • ProSurfaceContourVisit - to loop through the contours on the surface, followed by
  • ProContourEdgeVisit - to find all edges in the contour

If you loop through all of these items, you can use the appropriate data methods (such as ProContourdataGet and ProEdgeDataGet) to help determine what kind of edges you have. From there, its pretty easy to determine what a "slot" is by comparing # of edges in the contour, + the types, lengths, and radii of the edges.

 

One nice thing about this method too, as opposed to using ProHole methods (etc), is that it usually works pretty well on imported or non-native geometry as well. 

 

Hope this helps!

 

James Sullivan

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    CHASEONHO18-OpalAuthor
    18-Opal
    Nov 7, 2019 2:03 AM UTC

    @sully7 ,Thanks a lot.

    I'll test and apply it.//

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    RPN
    RPN18-Opal
    18-Opal
    Nov 17, 2019 9:45 PM UTC

    You may give this a try as well:

     

    ProSurfaceSameSrfsFind (ProSolid solid,
    ProSurface surface,
    ProSurface **r_surf_arr,
    int *r_size);

    Purpose: Finds and returns an array of surfaces that are the same as the
    input surface. For example, in the case of a cylinder, Creo Parametric
    creates two half-cylindrical surfaces. If you input one half, the
    other half is returned by this function.

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