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    • CommentAuthoroliverks
    • CommentTimeJul 13th 2010
     
    A nice feature enhancement would be the ability to export layers to FastCap and FastHenry.

    I think that this can be done with the Ruby scripts so maybe I will take a whack at it. If anyone else has already done this it would be great if you can share.

    Oliver
    • CommentAuthorMatthias
    • CommentTimeJul 13th 2010 edited
     

    Hi Oliver,

    is there any specification about the format required by these programs? I am not familiar with those myself.

    Best regards,

    Matthias

    • CommentAuthoroliverks
    • CommentTimeJul 14th 2010 edited
     
    Matthias,

    They are both open formats. See this link:

    http://www.fastfieldsolvers.com/links.htm

    FastCap has a particularly simple file format, but it would benefit from pre-tessellation.

    This would allow folks to model their GDSII files better.

    Oliver
    • CommentAuthorMatthias
    • CommentTimeJul 15th 2010
     

    Hi Oliver,

    I had a brief look into the documentation but I am not quite sure about the tesselation issue. There seems to be a tool that generates a mesh for a rectangular geometry and create .qui files that you can include, but I understand that it's more common to generate the mesh directly.

    Is there any more material I could look at? In particular I assume there are some guidelines how to choose the mesh density or the tesselation strategy for example.

    I have to admit that the topic is new to me.

    Best regards,

    Matthias

    • CommentAuthoroliverks
    • CommentTimeJul 16th 2010
     
    Matthias,

    A parameter to control the mesh density would be nice.

    I would think that breaking things into rectangles would work well for GDSII files.

    Oliver
    • CommentAuthorMatthias
    • CommentTimeJul 20th 2010
     

    Hi Oliver,

    I am trying to make myself familiar with FastCap and FastHenry. I wonder what to do with non-rectangular features - I assume that decomposing them into rectangles and triangles would be a good starting point.

    Best regards,

    Matthias

    • CommentAuthormhellman
    • CommentTimeJun 20th 2016
     
    I'm aware this comment is from a while ago ... I'm currently working on finding a program to breakdown these non-rectangular features into the FastCap .qui format. Did you find a way to do this or is this an unsolved problem?

    Mike
    • CommentAuthorMatthias
    • CommentTimeJun 23rd 2016
     

    Hi Mike,

    no sorry - I did not pursue this thread much further. Decomposition into parts is available but I don't know the requirements of FastCap. I understood this is tessellation and not just decomposition. I assume that a dumb trapezoid decomposition is not really helpful.

    Any inputs?

    Matthias