Skip to content
GitLab
Explore
Sign in
Register
Primary navigation
Search or go to…
Project
gmsh
Manage
Activity
Members
Labels
Plan
Issues
Issue boards
Milestones
Wiki
Code
Merge requests
Repository
Branches
Commits
Tags
Repository graph
Compare revisions
Snippets
Build
Pipelines
Jobs
Pipeline schedules
Artifacts
Deploy
Releases
Model registry
Operate
Environments
Monitor
Incidents
Analyze
Value stream analytics
Contributor analytics
CI/CD analytics
Repository analytics
Model experiments
Help
Help
Support
GitLab documentation
Compare GitLab plans
Community forum
Contribute to GitLab
Provide feedback
Terms and privacy
Keyboard shortcuts
?
Snippets
Groups
Projects
Show more breadcrumbs
Larry Price
gmsh
Commits
db9cd1f5
Commit
db9cd1f5
authored
16 years ago
by
Christophe Geuzaine
Browse files
Options
Downloads
Patches
Plain Diff
move tutorial in appendix + put "running" chapter at the begining
parent
a2cce52f
No related branches found
No related tags found
No related merge requests found
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
doc/texinfo/gmsh.texi
+407
-409
407 additions, 409 deletions
doc/texinfo/gmsh.texi
with
407 additions
and
409 deletions
doc/texinfo/gmsh.texi
+
407
−
409
View file @
db9cd1f5
...
...
@@ -106,26 +106,26 @@ for Gmsh @value{GMSH-VERSION} (@today{}).
@c =========================================================================
@menu
* Copying conditions:: Terms and conditions of use
.
* Copying conditions:: Terms and conditions of use
* Overview:: What is Gmsh?
* How to read this manual?:: Which parts of this manual should you read (if any)?
*
General tools:: Description of general commands and options.
* Ge
ometry module::
Description of
all Geometry commands.
*
Mesh
module::
Description of all
Mesh
commands
.
*
Solver
module:: Description of all
Solver
commands
.
*
Post-processing
module:: Description of all
Post-Processing
commands
.
*
Tutorial:: A step-by-step tutorial.
*
Running Gmsh
::
How to run Gmsh on your operating system.
*
File formats
::
Input and output file formats.
*
Running Gmsh on your system:: How can you run Gmsh on your machine?
* Ge
neral tools::
Description of
general commands and options
*
Geometry
module:: Description of all
Geometry
commands
*
Mesh
module::
Description of all
Mesh
commands
*
Solver
module::
Description of all
Solver
commands
*
Post-processing module:: Description of all Post-Processing commands
*
File formats
::
Input and output file formats
*
Tutorial
::
A step-by-step tutorial
* Options:: List of all available options
* Programming notes:: Notes for developers
* Random tips and tricks:: Tips and tricks to make your life easier
* Frequently asked questions:: The Gmsh FAQ
* Version history:: Changelog
* Copyright and credits:: Copyright information and list of contributors
* License:: Complete copy of the license
.
* Concept index:: Index of concepts
.
* Syntax index:: Index of reserved keywords in the Gmsh language
.
* License:: Complete copy of the license
* Concept index:: Index of concepts
* Syntax index:: Index of reserved keywords in the Gmsh language
@detailmenu
--- The Detailed Node Listing ---
...
...
@@ -144,6 +144,14 @@ How to read this reference manual?
* Syntactic rules::
Running Gmsh on your system
* Interactive mode::
* Non-interactive mode::
* Command-line options::
* Mouse actions::
* Keyboard shortcuts::
General tools
* Comments::
...
...
@@ -199,26 +207,6 @@ Post-processing module
* Post-processing plugins::
* Post-processing options::
Tutorial
* t1.geo::
* t2.geo::
* t3.geo::
* t4.geo::
* t5.geo::
* t6.geo::
* t7.geo::
* t8.geo::
* t9.geo::
Running Gmsh
* Interactive mode::
* Non-interactive mode::
* Command-line options::
* Mouse actions::
* Keyboard shortcuts::
File formats
* MSH ASCII file format::
...
...
@@ -232,6 +220,18 @@ Legacy formats
* POS ASCII file format::
* POS binary file format::
Tutorial
* t1.geo::
* t2.geo::
* t3.geo::
* t4.geo::
* t5.geo::
* t6.geo::
* t7.geo::
* t8.geo::
* t9.geo::
Options
* General options list::
...
...
@@ -458,13 +458,13 @@ generate complex animations (see @ref{General tools}, and @ref{t8.geo});
run on low end machines and/or machines with no graphical
interface. Gmsh can be compiled with or without the GUI, and all
versions can be used either interactively or directly from the command
line (@pxref
{
Running Gmsh
}
);
line (@pxref
{
Running Gmsh
on your system
}
);
@item
configure your preferred options. Gmsh has a large number of
configuration options that can be set interactively using the GUI,
scattered inside command files, changed on the fly in scripts, set in
per-user configuration files, or specified on the command-line (see
@ref
{
Running Gmsh
}
and @ref
{
Options
}
);
@ref
{
Running Gmsh
on your system
}
and @ref
{
Options
}
);
@item
and do all the above on various platforms (Windows, Mac and Unix), for
free (@pxref
{
Copying conditions
}
), using simple script files and/or a
...
...
@@ -539,7 +539,7 @@ the distribution to see which problems we already know about.
@c How to read this manual?
@c =========================================================================
@node How to read this manual?,
General tools
, Overview, Top
@node How to read this manual?,
Running Gmsh on your system
, Overview, Top
@chapter How to read this reference manual?
Gmsh can be used at three levels:
...
...
@@ -554,12 +554,13 @@ as a stand-alone script-driven program;
as a library.
@end enumerate
You don't need to read the rest of this reference manual in order to use
Gmsh at the first level (i.e., interactively with the GUI). Just skip
the next chapters and have a quick look at @ref
{
Running Gmsh
}
, then go
play with the GUI and run the tutorials files (@pxref
{
Tutorial
}
) bundled
in the distribution. Screencasts that show how to use the GUI are
available here: @uref
{
http://www.geuz.org/gmsh/screencasts/
}
.
You can skip most of this reference manual if you only want to use Gmsh
at the first level (i.e., interactively with the GUI). Just read the
next chapter (@pxref
{
Running Gmsh on your system
}
) to learn how to
launch Gmsh on your system, then go play with the GUI and run the
tutorials files (@pxref
{
Tutorial
}
) bundled in the distribution.
Screencasts that show how to use the GUI are available here:
@uref
{
http://www.geuz.org/gmsh/screencasts/
}
.
The aim of the reference manual is to explain everything you need to use
Gmsh at the second level, i.e., using the built-in scripting language.
...
...
@@ -626,11 +627,231 @@ Three dots (@dots{}) indicate a possible (multiple) repetition of the
preceding rule.
@end enumerate
@c =========================================================================
@c Running Gmsh on your system
@c =========================================================================
@node Running Gmsh on your system, General tools, How to read this manual?, Top
@chapter Running Gmsh on your system
@cindex Operating system
@cindex Running Gmsh
@menu
* Interactive mode::
* Non-interactive mode::
* Command-line options::
* Mouse actions::
* Keyboard shortcuts::
@end menu
@c -------------------------------------------------------------------------
@c Interactive mode
@c -------------------------------------------------------------------------
@node Interactive mode, Non-interactive mode, Running Gmsh on your system, Running Gmsh on your system
@section Interactive mode
@cindex Interactive mode
To launch Gmsh in interactive mode, just double-click on the Gmsh icon,
or type
@example
> gmsh
@end example
@noindent at your shell prompt in a terminal. This will open
two windows: the graphic window (with a status bar at the bottom) and
the menu window (with a menu bar and some context-dependent buttons).
To open the first tutorial file (@pxref
{
Tutorial
}
), select the
`File->Open' menu, and choose @file
{
t1.geo
}
in the input field. When
using a terminal, you can specify the file name directly on the command
line, i.e.:
@example
> gmsh t1.geo
@end example
To perform the mesh generation, go to the mesh module (by selecting
`Mesh' in the module menu) and choose the dimension in the
context-dependent buttons (`1D' will mesh all the lines; `2D' will mesh
all the surfaces---as well as all the lines if `1D' was not called
before; `3D' will mesh all the volumes---and all the surfaces if `2D'
was not called before). To save the resulting mesh in the current mesh
format click on the `Save' button, or select the appropriate format and
file name with the `File->Save As' menu. The default mesh file name is
based on the name of the current active model, with an appended
extension depending on the mesh format@footnote
{
Nearly all the
interactive commands have shortcuts: see @ref
{
Keyboard shortcuts
}
, or
select `Help->Keyboard Shortcuts' in the menu. For example, to quickly
save a mesh, you can press @kbd
{
Ctrl+Shift+s
}
.
}
.
To create a new geometry or to modify an existing geometry, select
'Geometry' in the module menu, and follow the context-dependent buttons.
For example, to create a spline, select `Elementary', `Add', `New' and
`Spline'. You will then be asked to select a list of points, and to type
@kbd
{
e
}
to finish the selection (or @kbd
{
q
}
to abort it). Once the
interactive command is completed, a text string is automatically added
at the end of the current script file. You can edit the script file by
hand at any time by pressing the `Edit' button in the `Geometry' menu
and then reloading the model by pressing `Reload'. For example, it is
often faster to define variables and points directly in the script file,
and then use the GUI to define the lines, the surfaces and the volumes
interactively.
Several files can be loaded simultaneously in Gmsh. The first one
defines the active model and the others are `merged' into this
model. You can merge such files with the `File->Merge' menu, or by
directly specifying the names of the files on the command line. For
example, to merge the post-processing views contained in the files
@file
{
view1.pos
}
and @file
{
view5.msh
}
together with the geometry of the
first tutorial @file
{
t1.geo
}
, you can type the following command:
@example
> gmsh t1.geo view1.pos view5.msh
@end example
In the Post-Processing module (select `Post-Processing' in the module
menu), three buttons will appear, respectively labeled `A scalar map',
`Nodal scalar map' and `Element 1 vector'. In this example the views
contain several time steps: you can loop through them with the small
``remote-control'' icons at the bottom of the graphic window. A mouse
click on the view name will toggle the visibility of the selected view,
while a click on the arrow button on the right will provide access to
the view's options.
Note that all the options specified interactively can also be directly
specified in the script files. All available options, with their current
values, can be saved into a file by selecting `File->Save As->Gmsh
options', or simply viewed by pressing the `?' button in the status
bar. To save the current options as your default preferences for all
future Gmsh sessions, use the `File->Save Default Options' menu.
@c -------------------------------------------------------------------------
@c Non-interactive mode
@c -------------------------------------------------------------------------
@node Non-interactive mode, Command-line options, Interactive mode, Running Gmsh on your system
@section Non-interactive mode
@cindex Non-interactive mode
You can also run Gmsh non-interactively, in `batch' mode. There is no
GUI in batch mode and all operations are performed without user
interaction@footnote
{
If you compile Gmsh without the GUI, i.e., with
@code
{
./configure --disable-gui
}
, this is the only mode you have access
to.
}
. For example, to mesh the first tutorial in non-interactive mode,
just type:
@example
> gmsh t1.geo -2
@end example
To mesh the same example, but with the background mesh available in the file
@file
{
bgmesh.pos
}
, type:
@example
> gmsh t1.geo -2 -bgm bgmesh.pos
@end example
For the list of all command-line options, see @ref
{
Command-line options
}
.
@c -------------------------------------------------------------------------
@c Command-line options
@c -------------------------------------------------------------------------
@node Command-line options, Mouse actions, Non-interactive mode, Running Gmsh on your system
@section Command-line options
@cindex Command-line options
@cindex Options, command-line
@include command
_
line.texi
@c -------------------------------------------------------------------------
@c Mouse actions
@c -------------------------------------------------------------------------
@node Mouse actions, Keyboard shortcuts, Command-line options, Running Gmsh on your system
@section Mouse actions
@cindex Mouse, actions
@cindex Bindings, mouse
In the following, for a 2 button mouse, @kbd
{
Middle button
}
=
@kbd
{
Shift+Left button
}
. For a 1 button mouse, @kbd
{
Middle button
}
=
@kbd
{
Shift+Left button
}
and @kbd
{
Right button
}
= @kbd
{
Alt+Left button
}
.
@kbd
{
Move the mouse
}
:
@itemize @bullet
@item
Highlight the entity under the mouse pointer and display its properties
in the status bar
@item
Resize a lasso zoom or a lasso selection/unselection started with
@kbd
{
Ctrl+Left button
}
@end itemize
@kbd
{
Left button
}
:
@itemize @bullet
@item
Rotate
@item
Select an entity
@item
Accept a lasso zoom or a lasso selection started with @kbd
{
Ctrl+Left
button
}
@end itemize
@kbd
{
Ctrl+Left button
}
: Start a lasso zoom or a lasso selection/unselection
@kbd
{
Middle button
}
:
@itemize @bullet
@item
Zoom
@item
Unselect an entity
@item
Accept a lasso zoom or a lasso unselection
@end itemize
@kbd
{
Ctrl+Middle button
}
: Orthogonalize display
@kbd
{
Right button
}
:
@itemize @bullet
@item
Pan
@item
Cancel a lasso zoom or a lasso selection/unselection
@item
Pop-up menu on post-processing view button
@end itemize
@kbd
{
Ctrl+Right button
}
: Reset to default viewpoint
@c -------------------------------------------------------------------------
@c Keyboard shortcuts
@c -------------------------------------------------------------------------
@node Keyboard shortcuts, , Mouse actions, Running Gmsh on your system
@section Keyboard shortcuts
@cindex Keyboard, shortcuts
@cindex Shortcuts, keyboard
@cindex Bindings, keyboard
(On Mac Ctrl is replaced by Cmd (the `Apple key') in the shortcuts
below.)
@include shortcuts.texi
@c =========================================================================
@c General tools
@c =========================================================================
@node General tools, Geometry module,
How to read this manual?
, Top
@node General tools, Geometry module,
Running Gmsh on your system
, Top
@chapter General tools
This chapter describes the general commands and options that can be used
...
...
@@ -1965,8 +2186,8 @@ The mesh module commands mostly permit to modify the characteristic
lengths and specify structured grid parameters. The actual mesh
``actions'' (i.e., ``mesh the lines'', ``mesh the surfaces'' and ``mesh
the volumes'') cannot be specified in the script files. They have to be
given either in the GUI or on the command line (see @ref
{
Running Gmsh
}
,
and @ref
{
Command-line options
}
).
given either in the GUI or on the command line (see @ref
{
Running Gmsh
on
your system
}
,
and @ref
{
Command-line options
}
).
@menu
* Characteristic lengths::
...
...
@@ -2322,7 +2543,7 @@ options}):
@c Post-processing module
@c =========================================================================
@node Post-processing module,
Tutorial
, Solver module, Top
@node Post-processing module,
File formats
, Solver module, Top
@chapter Post-processing module
@cindex Post-processing, module
...
...
@@ -2673,376 +2894,42 @@ The list of all post-processing and view options is given in
for some examples.
@c =========================================================================
@c
Tutorial
@c
File Formats
@c =========================================================================
@node
Tutorial, Running Gmsh
, Post-processing module, Top
@chapter
Tutorial
@node
File formats, Tutorial
, Post-processing module, Top
@chapter
File formats
@cindex Examples
@cindex Tutorial
@cindex File formats
The nine following examples introduce new features gradually, starting with
@file
{
t1.geo
}
. The files corresponding to these examples are available in
the @file
{
tutorial
}
directory of the Gmsh distribution.
This chapter describes Gmsh's native ``MSH'' file format, used to store
meshes and associated post-processing datasets. The MSH format exists in
two flavors: ASCII and binary. The format has a version number
(currently: 2.0) that is independent of Gmsh's main version number.
To learn how to run Gmsh on your computer, see @ref
{
Running
Gmsh
}
. Screencasts that show how to use the GUI are available on
@uref
{
http://www.geuz.org/gmsh/screencasts/
}
.
(Remember that for small post-processing datasets you can also use
human-readable ``parsed'' post-processing views, as described in
@ref
{
Post-processing commands
}
. Such ``parsed'' views do not require an
underlying mesh, and can therefore be easier to use in some
cases.)
@menu
* t1.geo::
* t2.geo::
* t3.geo::
* t4.geo::
* t5.geo::
* t6.geo::
* t7.geo::
* t8.geo::
* t9.geo::
* MSH ASCII file format::
* MSH binary file format::
* Node ordering::
* Legacy formats::
@end menu
@c -------------------------------------------------------------------------
@c
t1.geo
@c
MSH ASCII file format
@c -------------------------------------------------------------------------
@node t1.geo, t2.geo, Tutorial, Tutorial
@section @file
{
t1.geo
}
@verbatiminclude ../../tutorial/t1.geo
@node MSH ASCII file format, MSH binary file format, File formats, File formats
@section MSH ASCII file format
@c -------------------------------------------------------------------------
@c t2.geo
@c -------------------------------------------------------------------------
@node t2.geo, t3.geo, t1.geo, Tutorial
@section @file
{
t2.geo
}
@verbatiminclude ../../tutorial/t2.geo
@c -------------------------------------------------------------------------
@c t3.geo
@c -------------------------------------------------------------------------
@node t3.geo, t4.geo, t2.geo, Tutorial
@section @file
{
t3.geo
}
@verbatiminclude ../../tutorial/t3.geo
@c -------------------------------------------------------------------------
@c t4.geo
@c -------------------------------------------------------------------------
@node t4.geo, t5.geo, t3.geo, Tutorial
@section @file
{
t4.geo
}
@verbatiminclude ../../tutorial/t4.geo
@c -------------------------------------------------------------------------
@c t5.geo
@c -------------------------------------------------------------------------
@node t5.geo, t6.geo, t4.geo, Tutorial
@section @file
{
t5.geo
}
@verbatiminclude ../../tutorial/t5.geo
@c -------------------------------------------------------------------------
@c t6.geo
@c -------------------------------------------------------------------------
@node t6.geo, t7.geo, t5.geo, Tutorial
@section @file
{
t6.geo
}
@verbatiminclude ../../tutorial/t6.geo
@c -------------------------------------------------------------------------
@c t7.geo
@c -------------------------------------------------------------------------
@node t7.geo, t8.geo, t6.geo, Tutorial
@section @file
{
t7.geo
}
@verbatiminclude ../../tutorial/t7.geo
@c -------------------------------------------------------------------------
@c t8.geo
@c -------------------------------------------------------------------------
@node t8.geo, t9.geo, t7.geo, Tutorial
@section @file
{
t8.geo
}
@verbatiminclude ../../tutorial/t8.geo
@c -------------------------------------------------------------------------
@c t9.geo
@c -------------------------------------------------------------------------
@node t9.geo, , t8.geo, Tutorial
@section @file
{
t9.geo
}
@verbatiminclude ../../tutorial/t9.geo
@c =========================================================================
@c Running Gmsh
@c =========================================================================
@node Running Gmsh, File formats, Tutorial, Top
@chapter Running Gmsh
@cindex Operating system
@cindex Running Gmsh
@menu
* Interactive mode::
* Non-interactive mode::
* Command-line options::
* Mouse actions::
* Keyboard shortcuts::
@end menu
@c -------------------------------------------------------------------------
@c Interactive mode
@c -------------------------------------------------------------------------
@node Interactive mode, Non-interactive mode, Running Gmsh, Running Gmsh
@section Interactive mode
@cindex Interactive mode
Gmsh's first operating mode is the `interactive graphical mode'. To launch
Gmsh in interactive mode, just click or double-click on the Gmsh icon
(Windows and Mac), or type
@example
> gmsh
@end example
@noindent at your shell prompt in a terminal (Unix). This will open
two windows: the graphic window (with a status bar at the bottom) and the
menu window (with a menu bar and some context-dependent buttons).
To open the first tutorial file (@pxref
{
Tutorial
}
), select the `File->Open'
menu, and choose @file
{
t1.geo
}
in the input field. When using a terminal,
you can also specify the file name directly on the command line, i.e.:
@example
> gmsh t1.geo
@end example
To perform the mesh generation, go to the mesh module (by selecting `Mesh'
in the module menu) and choose the required dimension in the
context-dependent buttons (`1D' will mesh all the lines; `2D' will mesh all
the surfaces---as well as all the lines if `1D' was not called before; `3D'
will mesh all the volumes---and all the surfaces if `2D' was not called
before). To save the resulting mesh in the current mesh format, choose
`Save' in the context-dependent buttons, or select the appropriate format
with the `File->Save As' menu. The default mesh file name is based on the
name of the first input file on the command line (or @file
{
untitled
}
if
there wasn't any input file given), with an appended extension depending on
the mesh format@footnote
{
Nearly all the interactive commands have shortcuts:
see @ref
{
Keyboard shortcuts
}
, or select `Help->Keyboard Shortcuts' in the
menu.
}
.
To create a new geometry or to modify an existing geometry, select
'Geometry' in the module menu, and follow the context-dependent buttons.
For example, to create a spline, select `Elementary', `Add', `New' and
`Spline'. You will then be asked to select a list of points, and to type
@kbd
{
e
}
to finish the selection (or @kbd
{
q
}
to abort it). Once the
interactive command is completed, a text string is automatically added
at the end of the current project file. You can edit this project file
by hand at any time by pressing the `Edit' button in the `Geometry' menu
and then reloading the project by pressing `Reload'. For example, it is
often faster to define variables and points directly in the project
file, and then use the GUI to define the lines, the surfaces and the
volumes interactively.
Several files can be loaded simultaneously in Gmsh. The first one
defines the project, while the others are appended (`merged') to this
project. You can merge such files with the `File->Merge' menu, or by
directly specifying the names of the files on the command line. For
example, to merge the post-processing views contained in the files
@file
{
view1.pos
}
and @file
{
view5.msh
}
together with the geometry of the
first tutorial @file
{
t1.geo
}
, you can type the following command:
@example
> gmsh t1.geo view1.pos view5.msh
@end example
In the Post-Processing module (select `Post-Processing' in the module
menu), three view buttons will appear, respectively labeled `A scalar
map', `Nodal scalar map' and `Element 1 vector'. These views contain
several time steps: you can loop through them with the small
``remote-control'' icons at the bottom of the graphic window. A mouse
click on the name will toggle the visibility of the selected view, while
a click on the arrow button on the right will provide access to the
view's options. If you want the modifications made to one view to affect
also all the other views, select the `Apply next changes to all views'
or `Force same options for all views' option in the
`Tools->Options->Post-processing' menu.
Note that all the options specified interactively can also be directly
specified in the script files. All available options, with their current
values, can be saved into a file by selecting `File->Save As->Gmsh
options', or simply viewed by pressing the `?' button in the status
bar. To save the current options as your default preferences for all
future Gmsh sessions, use the `Tools->Options->Save as defaults' button.
@c -------------------------------------------------------------------------
@c Non-interactive mode
@c -------------------------------------------------------------------------
@node Non-interactive mode, Command-line options, Interactive mode, Running Gmsh
@section Non-interactive mode
@cindex Non-interactive mode
Gmsh's second operating mode is the non-interactive (or `batch')
mode. In this mode, there is no GUI, and all operations are performed
without any user interaction@footnote
{
If you compile Gmsh without the
GUI, i.e., with @code
{
./configure --disable-gui
}
, this is the only mode
you have access to.
}
. For example, to mesh the first tutorial in
non-interactive mode, just type:
@example
> gmsh t1.geo -2
@end example
To mesh the same example, but with the background mesh available in the file
@file
{
bgmesh.pos
}
, type:
@example
> gmsh t1.geo -2 -bgm bgmesh.pos
@end example
For the list of all command-line options, see @ref
{
Command-line options
}
.
@c -------------------------------------------------------------------------
@c Command-line options
@c -------------------------------------------------------------------------
@node Command-line options, Mouse actions, Non-interactive mode, Running Gmsh
@section Command-line options
@cindex Command-line options
@cindex Options, command-line
@include command
_
line.texi
@c -------------------------------------------------------------------------
@c Mouse actions
@c -------------------------------------------------------------------------
@node Mouse actions, Keyboard shortcuts, Command-line options, Running Gmsh
@section Mouse actions
@cindex Mouse, actions
@cindex Bindings, mouse
In the following, for a 2 button mouse, @kbd
{
Middle button
}
=
@kbd
{
Shift+Left button
}
. For a 1 button mouse, @kbd
{
Middle button
}
=
@kbd
{
Shift+Left button
}
and @kbd
{
Right button
}
= @kbd
{
Alt+Left button
}
.
@kbd
{
Move the mouse
}
:
@itemize @bullet
@item
Highlight the entity under the mouse pointer and display its properties
in the status bar
@item
Resize a lasso zoom or a lasso selection/unselection started with
@kbd
{
Ctrl+Left button
}
@end itemize
@kbd
{
Left button
}
:
@itemize @bullet
@item
Rotate
@item
Select an entity
@item
Accept a lasso zoom or a lasso selection started with @kbd
{
Ctrl+Left
button
}
@end itemize
@kbd
{
Ctrl+Left button
}
: Start a lasso zoom or a lasso selection/unselection
@kbd
{
Middle button
}
:
@itemize @bullet
@item
Zoom
@item
Unselect an entity
@item
Accept a lasso zoom or a lasso unselection
@end itemize
@kbd
{
Ctrl+Middle button
}
: Orthogonalize display
@kbd
{
Right button
}
:
@itemize @bullet
@item
Pan
@item
Cancel a lasso zoom or a lasso selection/unselection
@item
Pop-up menu on post-processing view button
@end itemize
@kbd
{
Ctrl+Right button
}
: Reset to default viewpoint
@c -------------------------------------------------------------------------
@c Keyboard shortcuts
@c -------------------------------------------------------------------------
@node Keyboard shortcuts, , Mouse actions, Running Gmsh
@section Keyboard shortcuts
@cindex Keyboard, shortcuts
@cindex Shortcuts, keyboard
@cindex Bindings, keyboard
(On Mac Ctrl is replaced by Cmd (the `Apple key') in the shortcuts
below.)
@include shortcuts.texi
@c =========================================================================
@c File Formats
@c =========================================================================
@node File formats, Options, Running Gmsh, Top
@chapter File formats
@cindex File formats
This chapter describes Gmsh's native ``MSH'' file format, used to store
meshes and associated post-processing datasets. The MSH format exists in
two flavors: ASCII and binary. The format has a version number
(currently: 2.0) that is independent of Gmsh's main version number.
(Remember that for small post-processing datasets you can also use
human-readable ``parsed'' post-processing views, as described in
@ref
{
Post-processing commands
}
. Such ``parsed'' views do not require an
underlying mesh, and can therefore be easier to use in some
cases.)
@menu
* MSH ASCII file format::
* MSH binary file format::
* Node ordering::
* Legacy formats::
@end menu
@c -------------------------------------------------------------------------
@c MSH ASCII file format
@c -------------------------------------------------------------------------
@node MSH ASCII file format, MSH binary file format, File formats, File formats
@section MSH ASCII file format
@cindex Mesh, file format
@cindex File format, mesh
@cindex MSH file
@cindex Mesh, file format
@cindex File format, mesh
@cindex MSH file
The MSH ASCII file format contains one mandatory section giving
information about the file (@code
{$
MeshFormat
}
)
, followed by several
...
...
@@ -3976,11 +3863,122 @@ precision numbers containing all the @var{scalar-point-value} lists, put one
after each other in order to form a long array of doubles. The principle is
the same for all other kinds of values.
@c
=========================================================================
@c Tutorial
@c
=========================================================================
@node Tutorial, Options, File formats, Top
@appendix Tutorial
@cindex Examples
@cindex Tutorial
The nine following examples introduce new features gradually, starting with
@file
{
t
1
.geo
}
. The files corresponding to these examples are available in
the @file
{
tutorial
}
directory of the Gmsh distribution.
To learn how to run Gmsh on your computer, see @ref
{
Running Gmsh on your
system
}
. Screencasts that show how to use the GUI are available on
@uref
{
http:
//
www.geuz.org
/
gmsh
/
screencasts
/
}
.
@menu
*
t
1
.geo::
*
t
2
.geo::
*
t
3
.geo::
*
t
4
.geo::
*
t
5
.geo::
*
t
6
.geo::
*
t
7
.geo::
*
t
8
.geo::
*
t
9
.geo::
@end menu
@c
-------------------------------------------------------------------------
@c t
1
.geo
@c
-------------------------------------------------------------------------
@node t
1
.geo, t
2
.geo, Tutorial, Tutorial
@section @file
{
t
1
.geo
}
@verbatiminclude ..
/
..
/
tutorial
/
t
1
.geo
@c
-------------------------------------------------------------------------
@c t
2
.geo
@c
-------------------------------------------------------------------------
@node t
2
.geo, t
3
.geo, t
1
.geo, Tutorial
@section @file
{
t
2
.geo
}
@verbatiminclude ..
/
..
/
tutorial
/
t
2
.geo
@c
-------------------------------------------------------------------------
@c t
3
.geo
@c
-------------------------------------------------------------------------
@node t
3
.geo, t
4
.geo, t
2
.geo, Tutorial
@section @file
{
t
3
.geo
}
@verbatiminclude ..
/
..
/
tutorial
/
t
3
.geo
@c
-------------------------------------------------------------------------
@c t
4
.geo
@c
-------------------------------------------------------------------------
@node t
4
.geo, t
5
.geo, t
3
.geo, Tutorial
@section @file
{
t
4
.geo
}
@verbatiminclude ..
/
..
/
tutorial
/
t
4
.geo
@c
-------------------------------------------------------------------------
@c t
5
.geo
@c
-------------------------------------------------------------------------
@node t
5
.geo, t
6
.geo, t
4
.geo, Tutorial
@section @file
{
t
5
.geo
}
@verbatiminclude ..
/
..
/
tutorial
/
t
5
.geo
@c
-------------------------------------------------------------------------
@c t
6
.geo
@c
-------------------------------------------------------------------------
@node t
6
.geo, t
7
.geo, t
5
.geo, Tutorial
@section @file
{
t
6
.geo
}
@verbatiminclude ..
/
..
/
tutorial
/
t
6
.geo
@c
-------------------------------------------------------------------------
@c t
7
.geo
@c
-------------------------------------------------------------------------
@node t
7
.geo, t
8
.geo, t
6
.geo, Tutorial
@section @file
{
t
7
.geo
}
@verbatiminclude ..
/
..
/
tutorial
/
t
7
.geo
@c
-------------------------------------------------------------------------
@c t
8
.geo
@c
-------------------------------------------------------------------------
@node t
8
.geo, t
9
.geo, t
7
.geo, Tutorial
@section @file
{
t
8
.geo
}
@verbatiminclude ..
/
..
/
tutorial
/
t
8
.geo
@c
-------------------------------------------------------------------------
@c t
9
.geo
@c
-------------------------------------------------------------------------
@node t
9
.geo, , t
8
.geo, Tutorial
@section @file
{
t
9
.geo
}
@verbatiminclude ..
/
..
/
tutorial
/
t
9
.geo
@c
=========================================================================
@c Options
@c
=========================================================================
@node Options, Programming notes,
File formats
, Top
@node Options, Programming notes,
Tutorial
, Top
@appendix Options
This appendix lists all the available options. Gmsh's default behavior
...
...
@@ -3989,8 +3987,8 @@ is to save some of these options in a per-user ``session resource'' file
permits for example to automatically remember the size and location of
the windows or which fonts to use. Other options can be saved in a
per
-
user ``option'' file
(
@code
{
General.OptionsFileName
}
)
, automatically
loaded by Gmsh every time it starts up, by using the
`Tools
-
>Options
-
>Save as default
s' menu.
loaded by Gmsh every time it starts up, by using the
`File
-
>Save Default
Option
s' menu.
@c All the included files are generated automatically with `gmsh
-
doc'
...
...
@@ -4199,10 +4197,10 @@ your @code{.emacs} file: @code{(setq auto-mode-alist (append '(("\\.geo$"
Define common geometrical objects and options in separate files, reusable in
all your problem definition structures.
@item
Save your preferred options with `
Tools->Options
->Save
as d
efault
s'. To
reset
the default options, erase the @code
{
General.OptionsFileName
}
(usually
@file
{
.gmsh-options
}
in your home directory) or use the
`Restore default
options' button in `Tools->Options->General->Output'.
Save your preferred options with `
File
->Save
D
efault
Options'. To reset
the default options, erase the @code
{
General.OptionsFileName
}
(usually
@file
{
.gmsh-options
}
in your home directory) or use the
`Restore default
options' button in `Tools->Options->General->Output'.
@item
In the GUI:
...
...
This diff is collapsed.
Click to expand it.
Preview
0%
Loading
Try again
or
attach a new file
.
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Save comment
Cancel
Please
register
or
sign in
to comment