A Program of [ZU].

 What:        Static and dynamic Analysis for 2D-Frame (Version 2007)
 Where:       http://sicheng6699.googlepages.com/
 Description: With it you can calculate a Frame's forces (N,Q,M), Displacement and the eigenfrequency(eigenvalue) and the natural mode.
 Updated:     25/08/2007
 Contact:     sicheng6699(AT)gmail.com

Download:
 Code:     http://zhousicheng.googlepages.com/SD2007_code.rar  ( Germany, source file )
 Germany:  http://sicheng6699.googlepages.com/                 ( Germany, instruction and download )
 English:  http://zhousicheng.googlepages.com/SD2007_en.rar    ( very old version in English, sorry )

Screenshot: 

[http://zhousicheng.pic.googlepages.com/2007.05.21.struktur.jpg/2007.05.21.struktur-large.jpg] 

[http://zhousicheng.pic.googlepages.com/2007.05.21.M.Verlauf.jpg/2007.05.21.M.Verlauf-medium.jpg] [http://zhousicheng.pic.googlepages.com/2007.05.21.N.Verlauf.jpg/2007.05.21.N.Verlauf-medium.jpg] [http://zhousicheng.pic.googlepages.com/2007.05.21.V.Verlauf.jpg/2007.05.21.V.Verlauf-medium.jpg] [http://zhousicheng.pic.googlepages.com/2007.05.21.D.Verlauf.jpg/2007.05.21.D.Verlauf-medium.jpg]

Description:

I have used [Tcl/tk] for the [GUI], [Fortran] for the calculation, Lapack-library for the numeric algorithmus(linear equations,Eigenvalue).

I will keep working on it. 

I will be very glad to discuss it here.


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[ZU] 2007-09-02: 

Question 1 : IF I want to do someting with 3D-Framework, should I use [3dcanvas] ? oder [hoco an homogeneous coordinates package]? Someting like:

[http://zhousicheng.pic.googlepages.com/3D-Frame.jpg]

[RS]: You might evaluate those (I haven't tried them much), but for wireframes it's very easy to define a function that transforms {x y z} coordinates in 3D space to {x' y'}.. the trickiest problem in my experience was detection and covering of hidden surfaces.

[GS] 2007-09-03 You sould give a try to 3dcanvas (http://3dcanvas.tcl.tk/). This version written by [DRH] acts like a 2D canvas. See the man page at [http://3dcanvas.tcl.tk/cvstrac/getfile/canvas3d/doc/3dcanvas.html]. 
But you have to compile the package for the target platform and its depens on OpenGL.