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Toan Nguyen

Element normal in Hyperview

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Hi,

 

does anyone know how the element normal is calculated in Hyperview ???

 

I get the element normal from the Querry and use these values to create a user system.

 

However, it looks a bit different from the elemental system displayed when I used the system review.

 

Really wonder how it could be possible

 

image.thumb.png.e819308dd672421bd6a7e8361208d0b1.png

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In a warpage quad elem, if we split it into 2 trias, normal is mid ray of angle between 2 trias.

In calculation, take vector N1N3 x N2N4 

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Hi Tinh,

 

Seem like I get it correctly, still wonder why the elemental system displayed by system review tool does not have the z-direction same with the element normal

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The tool displays normal as vector N1N2N3, it is correct normal calculated by hypermesh, too. If you want to match, use N1N2N3

Some solvers could do N1N3 x N2N4

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