Bentley Structural - Smart Solid element fails to extract correctly.

Using Structural 08.11.07.94.

Attached is a really simple example structural model that contains some 3 beams and  3 plates.

There are three types of plates.  One is a smart solid and fails to show when the extraction is performed while the others are ok.

It seem to be something to do with the element. Other smart solids can be created in the same file and they work.

Is there any way to work out why this element is failing, repair it or am I just missing something else?

TIA.

 

SmartSolid_Test.dgn
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  • Unfortunately this is one of the effects of working with SmartSolids (Parasolid elements) at large distances from the SWA - there is no single "cut-off point" that determines how far away a single solid can be before potential precision issues might creep in (modeling or creating drawings).  There are numerous factors involved such as the complexity of the solid's boundary, it's orientation, whether it has any features, how complex those features are, what type of editing is being done, the angle of drawings in relation to the solid, etc, etc.  

    For example, there may be no issues at all when creating a top view drawing of a rectangular solid, sitting orthogonal to the global ACS, at 1000Km from the SWA.  OTOH, generating an iso drawing from an egg shaped solid with multiple spline shaped features, sitting at a 39.5 degree angle along all three axes, might be more problematic at that same distance.

    Bear's suggestion to shift the GO and use Geo-referencing is typically considered a best practice, since it allows each individual file/model to reside in its optimal 3D space, while still allowing the composition model to tie all disciplines together correctly.



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  • Unfortunately this is one of the effects of working with SmartSolids (Parasolid elements) at large distances from the SWA - there is no single "cut-off point" that determines how far away a single solid can be before potential precision issues might creep in (modeling or creating drawings).  There are numerous factors involved such as the complexity of the solid's boundary, it's orientation, whether it has any features, how complex those features are, what type of editing is being done, the angle of drawings in relation to the solid, etc, etc.  

    For example, there may be no issues at all when creating a top view drawing of a rectangular solid, sitting orthogonal to the global ACS, at 1000Km from the SWA.  OTOH, generating an iso drawing from an egg shaped solid with multiple spline shaped features, sitting at a 39.5 degree angle along all three axes, might be more problematic at that same distance.

    Bear's suggestion to shift the GO and use Geo-referencing is typically considered a best practice, since it allows each individual file/model to reside in its optimal 3D space, while still allowing the composition model to tie all disciplines together correctly.



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