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  1. bug

    10 votes
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    3 comments  ·  General  ·  Admin →
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    nooj commented  · 

    btw, it's not the space.

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    nooj commented  · 

    it also crashes v3.8.0 on linux.

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  2. add measurement in 3d and 2d

    3 votes
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    1 comment  ·  General  ·  Admin →
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    nooj commented  · 

    uh, this is the same request as "Add a ruler tool to calculate distances between 2 points on surfaces in the 3D geometry view".

  3. Support of integration points in finite elements

    3 votes
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    2 comments  ·  General  ·  Admin →
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    nooj commented  · 

    to avoid the discontinuity issue, you have to solve the extrapolation to the nodes globally, not just element by element.

    it is probably most accurate for you to map stress/strain values to the nodes by using the solver which gave you the integration point values you are trying to interpolate in the first place. this is because the proper interpolation depends on the basis functions you are using in your computations, which is not something paraview knows about.

    this is the relevant equation one needs to solve for this problem:
    <basis functions>*<unknown nodal coefficients>
    = <continuous function whose values are known at gauss points>

    the nice thing is that the newton-raphson scheme for computing this uses a constant mass matrix! thus the matrix can be precomputed, and solving the linear system is very fast and takes about one iteration.

    i hope this helps you (or future readers) with your simulations. i felt the same way you did until i sat down and worked out a generic "nodal interpolation" code. it's really not as hard as it seems at first, and it can be reused to interpolate any calculated value.

  4. Allow frequently used filters to be added to the common filters toolbar

    20 votes
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    2 comments  ·  General  ·  Admin →

  5. Glyphs: Scale only the arrow length instead of the whole glyph size

    53 votes
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    7 comments  ·  General  ·  Admin →
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    nooj commented  · 

    i think this has actually been done, and should make its way into a release sooner or later.