more occ work

occ work

start opencascade integration

added getNumPrimaryVertices (num vertices for a first-order element)

- routines added for finding all or some of an elements neighbours
- many miscellaneous changes and some reorganization

finish Mesh>Edit>Delete

more mesh edit work

small optim

much faster element deletion algorithm

more work on mesh editing

start work on mesh>edit feature (delete elements, etc.)

Only 2D elements have been tested

use for_each like Real Men(tm) do

prepare for extrusion

new GModel::writeGEO (only implemented for gmshModel for now; goal is to be able
to implement this for other derived model types (like OCC) later, too)

- patch from gabriele bellussi
- added GUI hooks for new mesh editing/reparam stuff (for jacob)
- more work on fourieModel

- stores sorted order of vertex addresses
- added Equal, Less, and Hash function objects for MFace and MFace*

- added Equal, Less, and Hash function objects for MEdge and MEdge*

use MVertex::distance + better check in writePOS

fix namespace clashes with CGNS headers (patch from sguzik@utias.utoronto.ca)

- second order nodes on geometry by default
- better min/max range computation for cut planes
- more work on fourierModel

force orientation of mesh to match the orientation of the geometry

keep existing vertex numbers when reading meshes (when it makes sense)

fix missing SIGN in NR

read vertex indices separated by blanks or commas in vrml (both seem to be correct)

- added CROD in BDF
- also accept small "e" and "d" in BDF floating point numbers

small fix for neg phys

also for unv

make negative physical entities behave like they're supposed to

implement revert() for all element types and use that in setVolumePositive()

- setParameter in MVertex
- revert() for quad
- minor cleanups in I/O code
- start work on overlap mesh in fourierModel