Be less verbose (especially since Msg can cause race conditions in this code

- new DecomposeInSimplex plugin
- new "Combine Views" command in the parser
- cleaned up View::tranform and View::smooth (+small bug fix for SLs)
- better check for transparency sorting
- make depend
- new View.AlphaChannel option to change the transparency
  globally for a given view (instead of having to change the colormap
  by hand every time)

With all the above, we can now generate very nice (and correct)
transparent iso-surfaces:

Merge "../tutorial/view3.pos";

minIso = 0;
maxIso = 2;
nbIso = 7;

Plugin(CutMap).iView = 0;

For i In {1:nbIso}
  Plugin(CutMap).A = (maxIso-minIso)/nbIso * i;
  Plugin(CutMap).Run;
EndFor

Delete View[0];
Combine Views;

For i In {1:nbIso}
  Delete View[0];
EndFor

Plugin(DecomposeInSimplex).iView = 0;
Plugin(DecomposeInSimplex).Run;

View[0].AlphaChannel = 0.6;

Set View.ShowTime=2 to show the time value even if the view contains a single
time step..

print info in all cases

Fix name

Cleaned up the whole Include/Merge/Open mess (removed the ugly
yyin/yyname tables in the parser, made the Merge routine reentrant
+ uniformized all the INFO/STATUS messages).

This should fix a nasty side effect from this morning's
commit (wrong yynames when doing multiple merges in the same
file).

Make Merge/Save/Print/Open behave like Include, i.e., open the file in the
same directory as the main project file (if the path is relative).

Make Skin a little bit more efficient by allocating/copying the values
only if the face is not found in the tree

displacement with other field animation example

One last fix to build the non gui version on OS X

Trying to fix compilation problems on old DEC stations (missing
vsnprintf and snprintf functions).
)

tag 1.48

forgot fclose

check if the file exists before trying to merge it

Oops, copy/paste mistake

Say if the plugin is executed in-place or if it creates new views

Correctly update View.Index when a view is deleted from the list

Generalization to all kinds of elements and field types

The new levelset stuff is too powerful ;-)

- don't cut the timestep in the levelset view if the timestep is
  used to get the field value. I think this makes it less confusing
  (and matches the behaviour of JF's old 'iField' option).

- rename the 'TimeStep' option to 'dTimeStep', also to avoid
  confusing people about which view the time step refers to.

typos, comments

To avoid surprising results, don't try to plot values of different types
on the levelset if the value view (w) is the same as the levelset view (v)

small makefile for the levelset benchmark

main() should return zero after a successful run

Generalization of the levelset plugin, take II.

One can now compute cuts/maps of abritrary views (any dimension, any kind of
element, any kind of field) + one can plot any other view on the resulting
cut/map.

Scalar prism drawing was wrong for timestep != 0

Do *not* copy the Recombine attributes when duplicating a surface

Forgot these

Big Levelset rewrite (+ cleanup of all other plugins).

Not finished yet, but I need to commit this now so that I can use it
with the boss tomorrow at work.

This version should compile and have all the old features working,
plus some extras (levelsets of scalar/vector/tensor 1D, 2D and
3D simplectic views).

JF: 'Plugin(XX).Save' is now deprecated. Use 'Save View[XX] "filename"'
instead.

Add help for LINKER variable

--enable-z + fix potential problem if libpng is not available

Generalize SphericalRaise to accept a TimeStep argument + fix the time
step selection warning.