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# Re: FEMM 3.0 Beta Tested.

- To: femm@egroups.com
- Subject: Re: FEMM 3.0 Beta Tested.
- From: Sebastia Jardi Estadella <sje@tinet.org>
- Date: Thu, 27 Apr 2000 13:23:11 -0700
- References: <68.2ef25e2.2638b4df@aol.com>

    Dear Dave:

    I have tested the FEMM 3.0 Beta and this is my opinion:

    FEMM EDITOR:
    EDIT
    - CUT:
    KO. Where are the PASTE option?
    This CUT are equal to DELETE?
    If this CUT are equal to DELETE, I think that the
    label DELETE is more descriptive of its function.

    - SCALE:
    OK. Very well implemented.

    - MIRROR:
    OK. But it can be more ease to use if we can especificated
    the points of the axis of symmetry clicking on the grid
    points.

    - COPY: NUMBER OF COPIES.
    OK. Very useful for me. Thanks.

    EDIT TOOLBAR:
    OK. Very useful, but:
    The Scissors icon for CUT-PASTE are correct, but can
    induce to confusion if you use it for DELETE. My
    suggestion is, use the drawing of an eraser.
    For copy icon, can be more intuitive if you use the same
    icon used for move but with the to rectangles with
    continuous lines.
    For mirror icon, can be more close to function if you
    draw two white, black or blue triangles, but both in the
    same colour, indicating symmetry.

    OPERATION
    - GROUP:
    OK. Very useful.

    - OPEN SELECTED:
    How it works?
    Do you have examples?

    PROPERTIES
    - CIRCUITS:
    How it works?
    Do you have examples?

    PROPERTIES FOR SELECTED BLOCK
    - LET TRIANGLE CHOOSE MESH SIZE.
    OK. Very useful to reduce the number of nodes.

    - MAGNETIZATION DIRECTION.
    OK. More useful for me here. Thanks.

    - THE ARROW OF MAGNETIZATION DIRECTION.
    OK. Very useful for me. Thanks.

    FEMM VIEWER
    - DENSITY PLOT IN GRAYSCALE.
    OK. This option reduce the memory needed?

    New ideas to implement in FEMM:

    - Strings to define groups, can be more intuitive than numbers.

    - Copy to clipboard as BITMAP for FEMM VIEWER can useful for
    reduce the memory needed for high resolution simulations
    in wordprocessors.

    - Click in a block or group to obtain the Magneto Motive Force
    by Surface integration.

    - Automatic block or group displacement for obtaining the answers
    in different positions without handling hundreds of simulation
    files.

    Thank you for your answer in Magnet Models.
    Congratulations for your job. Thank you very much.
    If you think that I can help you to develop FEMM, please contact me.

    Sebastia Jardi Estadella
    mailto:sje@tinet.org
    http://www.tinet.org/~sje/index_sp.htm

    dcm3c@aol.com wrote:

    > All--
    >
    > If anyone is interested in helping test out a new version of the program,
    > I've put up a new tester/beta version of the program in the files section of
    > egroups:
    >
    > http://www.egroups.com/files/femm/
    >
    > it's the file ``setup.exe''
    >
    > If you download it, make sure _not_ to install it over top of your 2.1
    > version. Another important note--it reads in files with the 2.1 file format,
    > but when it writes back to disk (upon calling the mesher or solver), it
    > writes the files back to disk in a new 3.0 format, which the 2.1 version
    > doesn't understand. Therefore, if you are looking at the performance of the
    > new beta version on some geometry that you have created with the 2.1 version,
    > save it to disk with a different filename before you do anything else. The
    > reason for the new file format is so that it is more human-readable and more
    > easily extensible in terms of adding in new features in the future.
    >
    > There are a bunch of changes from the 2.1 version. Most of them are
    > relatively small--to fix things that annoy me with the 2.1 version. The
    > biggest change is to harmonic problems--you can now specify connectivities
    > between different parts of the solution domain and fix net currents in parts
    > via the new "Circuit" property. To me, this was a real shortcoming in the
    > 2.1 version. There's also a new notion of lumping together groups of
    > entities into a parts, so that it is easier to look at the effects of changes
    > in geometry and orientation (like looking at the fields of a rotating machine
    > at different rotor orientations).
    >
    > Unfortunately, I haven't gotten around to updating the manual to reflect all
    > of the changes yet....
    >
    > Anyhow, I'd be very interested in any comments about this new version.
    >
    > Dave.
    > --
    > http://members.aol.com/dcm3c
    >
    > ------------------------------------------------------------------------
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- References:
  - femm 3.0 beta version available
    - From: dcm3c@aol.com

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