simple clip example

generalized + added GUI for clipping planes

make depend

mesh smooth normals

remove debug message

- moved the smooth normals stuff into a separate file
- added smooth normal support for surface meshes (very nice!)

removed the bool hacks

note to self

bgm fix

add an area constraint on the elements in the initial mesh to make
the refinement nicer

- Triangle now supports our background meshes

- fixed memory leak in Optimize_Netgen (forgot to free the volume
  vertices) + added missing 2nd order reset

- fixed a couple of typos in the docs

only use POLYGON_OFFSET_FILL when it's really necessary (when we draw
edges)

put missing GPL license block

fix copy/paste (we need to skip 2 more chars if the string is colored)

set a parameter for the max number of elements per bucket
(default=100, which seems to be a good memory vs. speed trade-off for
meshes up to 1/2 million elements)

- allow more than 2 elements per bucket for ST!
- add missing tensor simplex case

1.54.1

- fixed seg fault in Plugin(Triangulate)
- added BBox computation in plugins when the coordinates are changed

added paragraph about the cygwin memory limit

doc Delete Volume

Never, O Never define WIN32 when compiling netgen!

cleanup the rpm build/source directory after the build

finally correctly implemented smooth normals for discrete isos (and
custom range). really nice :-)

enhance smooth normals with discrete isos (not perfect, but better)

make tag in distrib-pre

start from the current source tree (possibly pre-compiled) to build the
rpm

force a buffer flush when we abort the parser due to too many errors

don't force a full clean for distrib-* rules: if we want a "make clean",
let's do it by hand

fix crash when saving options and all views have been removed

face -> quad. face

pretty print

document the optional second list in Layers

the famous "piece.geo" with an explicit volume definition (netgen test)

fixed old extrusion mesh generator (used the old 99999 volume hack!)

Removed the old test on ZonLayer: we actually WANT to use the automatic
volume if we set the layer number to 0. This is really pretty nice: we
can now get either automatic or manual numebring in all the extrusion
commands.

- All extrusion commands now return a list of 2 numbers (instead of 1):
  the first, as before, is the number of the "top" of the extruded region
  (i.e., a point for extrude point, a line for extrude line, ...), the
  second is the number of the "body" of the extruded region (i.e., a
  line for extrude point, a surface for extrude line, ...).

- "Extrude Surface" now always creates a new volume (automatically),
  EVEN WHEN THERE IS NO LAYERS SPECIFICATION. This makes it consistent
  with "Extrude Point" and "Extrude Line", which always create new
  curves and surfaces, respectively.

  Important Note: you will have to modify your old .geo files to avoid
  duplicate volume definitions if you use "Extrude Surface" without
  extruding the mesh (i.e., without the "Layers" command). These
  duplicate volumes would be harmless, but they would srew up your
  physical volume definitions later on...

  * Solution 1: use the new volumes (recommended). To do this, just
  remove your old extra volume definitions and let Gmsh create the
  extruded volumes for you. (To retrieve the volume number created by
  Gmsh, use "aa[] = Extrude Surface {...};;": the volume number is
  "aa[1]".)

  * Solution 2: keep the old volumes.

  a) clean way: retrieve the new volume number (aa[] = Extrude Surface
  {...};;) and delete the new volume with "Delete { Volume aa[1]; }"

  b) dirty (but handy) way: since, in order to create the new volumes
  with the less impact possible, Gmsh uses "low" numbers (actually,
  forcing "Geometry.OldNewreg=0") for the new volumes, just remove all
  "low number volumes". For example, if you have 4 "Extrude Surface" in
  your file, you can then just do "Delete{ Volume {1:4}; }"

Voila :-)