Description of the example files of xd3d (directory Examples)
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Four 3d curves generated by src/various/create_examples.f
See comments inside the source code.

example.xyz:           example of .xyz file. 
example_cartesian.c3d: example of .c3d in cartesian coordinates. 
example_cyl.c3d:       example of .c3d in cylindrical coordinates. 
example_sph.c3d:       example of .c3d in spherical coordinates.

---

mesh3.avoir2D: simple 2d triangular mesh. Translation of mesh3.nopo
               usind nopo_avoir.
mesh3.nopo:    initial nopo file (from Modulef)

---
2d quadrangular mesh with 2 subdomains, and various associated fields.
No particular physical model behind this demo :)

quadsd.avoir2D: mesh
quadsd.depl   : displacement field (nodal vector field)
quadsd.eldata : piecewise constant field (element scalar field)
quadsd.mises  : Von Mises stress field (piecewise discontinuous field)

---
Reference elements for 3d-Q2 (27 nodes), 3d-Q1 (8 nodes) and 2d-Q2 (9 nodes)
 
ref27nodes.avoir3D
ref8nodes.avoir3D
ref9nodes.avoir2D

---
Spherical shell in 3d meshed with Q2 elements. Type "xd3d -nodepl
sphere" to see the undeformed configuration or choose "exageration =
0" from the menu. Type "xd3d sphere" to see the deformed configuration
(the .depl is automatically red if present). The deformed
configuration corresponds to an equilibrium state of the half-sphere
(choose 4/4 reconstitution to see the whole half-sphere) without any
external forces. It demonstrates the non-unicity of solutions in
nonlinear elasticity. You can do the experiment by inverting half of a
tennis ball.

sphere.avoir3D: mesh
sphere.depl   : displacement field

---
8 first eigenmodes of a tower. Choose them one after the other
(button "val"). To see them, select a non-zero exageration factor.
You can animate it very simply in the menu "bitmap/anim". Choose
"special eigenmode" mode. 

tower.avoir3D:  mesh
tower_001.mode: first eigenmode
tower_002.mode: second eigenmode
tower_003.mode: etc
tower_004.mode: .
tower_005.mode: .
tower_006.mode: .
tower_007.mode:
tower_008.mode:

Description of the example files of xgraphic (directory Examples/Xgraphic)
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sinus.g: guess what! Try "xgraphic sinus.g" or "xgraphic -ortho sinus.g"
solh010 -> solh140: try "xgraphic solh*"
