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Larry Price
gmsh
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0daed7c1
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0daed7c1
authored
19 years ago
by
Christophe Geuzaine
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$Id: FAQ,v 1.7
2
2006-03-
0
1
16:07:17
geuzaine Exp $
$Id: FAQ,v 1.7
3
2006-03-
1
1
02:19:32
geuzaine Exp $
This is the Gmsh FAQ
This is the Gmsh FAQ
...
@@ -57,8 +57,6 @@ You need a C and a C++ compiler (e.g. the GNU compilers gcc and g++)
...
@@ -57,8 +57,6 @@ You need a C and a C++ compiler (e.g. the GNU compilers gcc and g++)
as well as the GSL (version 1.2 or higher; freely available from
as well as the GSL (version 1.2 or higher; freely available from
http://sources.redhat.com/gsl/) and FLTK (version 1.1.x, configured
http://sources.redhat.com/gsl/) and FLTK (version 1.1.x, configured
with OpenGL support; freely available from http://www.fltk.org).
with OpenGL support; freely available from http://www.fltk.org).
You'll also need the jpeg library if you want to save jpeg images, and
the libpng and zlib libraries if you want to save png images.
* 2.4 How do I compile Gmsh?
* 2.4 How do I compile Gmsh?
...
@@ -244,15 +242,11 @@ panel. From the command line, you can also use '-order 2'.
...
@@ -244,15 +242,11 @@ panel. From the command line, you can also use '-order 2'.
* 5.10 Can I import an existing surface mesh in Gmsh and use it to
* 5.10 Can I import an existing surface mesh in Gmsh and use it to
build a 3D mesh?
build a 3D mesh?
Yes, see for example 'demos/sphere-discrete.geo'. Note that Gmsh
Yes, see for example 'demos/sphere-discrete.geo'. You can either use
does not currently modify the surface mesh that you provide in this
the surface mesh "as-is" (for example to build a 3D mesh from an
way, so this surface mesh has to be conform (without gaps, hanging
existing boundary mesh), or you can remesh the surfaces to respect
nodes, etc.) and must contain surface elements having the final
certain constraints (see the STL menu in the mesh module). This is
desired sizes.
still an experimental feature as of this writing (version 2.0).
Gmsh can also import discrete geometries in the form of STL
triangulations, and remesh these to respect certain constraints. This
is still an experimental feature as of this writing (version 1.64).
* 5.11 How do I define boundary conditions or material properties in
* 5.11 How do I define boundary conditions or material properties in
Gmsh?
Gmsh?
...
@@ -324,23 +318,21 @@ distribution in the 'utils/solvers' directory.
...
@@ -324,23 +318,21 @@ distribution in the 'utils/solvers' directory.
executable. What's wrong?
executable. What's wrong?
The solver executable (for example, 'getdp.exe') has to be in your
The solver executable (for example, 'getdp.exe') has to be in your
path. If not, simply go to the solver options (
for example,
path. If
it is
not, simply go to the solver options (
the second tab in
'
Solver
->GetDP->Options->Executable') to specify its location
.
the
Solver
dialog) and specify its location in the 'Executable' field
.
* 6.3 Can I launch Gmsh from my solver (instead of launching my solver
* 6.3 Can I launch Gmsh from my solver (instead of launching my solver
from Gmsh) in order to monitor a solution?
from Gmsh) in order to monitor a solution?
Sure. A simple C program showing how to do this is given in
Sure. The simplest (but rather crude) approach if to re-launch Gmsh
'utils/misc/callgmsh.c'.
everytime you want to visualize something (a simple C program showing
how to do this is given in 'utils/misc/callgmsh.c'). A better approach
* 6.4 Is it possible for Gmsh top listen to an external program not
is to modify your program so that it can communicate with Gmsh over a
launched from Gmsh?
socket (see question 6.1 above; you can skip the option file
creation). Then select 'Always listen to incoming connection requests'
Yes: just create a program as described in 6.1 above (you can skip the
in the solver option panel (or run gmsh with the '-listen' command
option file creation). Then select 'Always listen to incoming
line option) and Gmsh will always listen for your program on the
connection requests' in the solver option panel (or run gmsh with the
Solver.SocketName socket.
'-listen' command line option) and Gmsh will listen for the program on
the Solver.SocketName socket.
********************************************************************
********************************************************************
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