Z Interpolation
#########################################
-.. |HYDROSolver| image:: /../_static/HYDROSolver.png
+.. |HYDROSolver| image:: ../_static/HYDROSolver.png
:align: middle
:width: 16pt
:height: 16pt
-.. |genereInterpolz| image:: /../_static/genereInterpolz.png
+.. |genereInterpolz| image:: ../_static/genereInterpolz.png
:align: middle
-
-.. |Bottom| image:: /../_static/Bottom.png
+
+.. |Bottom| image:: ../_static/Bottom.png
:align: middle
-.. |Capture_meshZ| image:: /../_static/Capture_meshZ.png
+.. |Capture_meshZ| image:: ../_static/Capture_meshZ.png
:align: middle
-.. |occ_view_scaling| image:: /../_static/occ_view_scaling.png
+.. |occ_view_scaling| image:: ../_static/occ_view_scaling.png
:align: middle
:width: 16pt
:height: 16pt
-The mesh generated in the previous step does not contain any information on the altitude.
-To supply the TELEMAC code with this data, a field containing the Z-coordinate of the nodes must be added to the mesh.
+The mesh generated in the previous step does not contain any information on the altitude.
+To supply the TELEMAC code with this data, a field containing the Z-coordinate of the nodes must be added to the mesh.
-The method for calculating the Z coordinate was described zone by zone in the calculation case set-up section of the HYDRO module.
+The method for calculating the Z coordinate was described zone by zone in the calculation case set-up section of the HYDRO module.
Calculation of the Z interpolation at the mesh nodes
====================================================
The altitude field is constituted by means of the following Python script that must be generated and then run.
-In the script, the regions of the HYDRO calculation case are associated to the corrresponding nodes group of the mesh.
+In the script, the regions of the HYDRO calculation case are associated to the corrresponding faces group of the mesh.
A specific command in HYDROSOLVER module helps to build this association.
The HYDROSOLVER module is activated with a selection in the module list (combo box) or its icon in the toolbar: |HYDROSolver|.
The interpolation of point clouds can be done in two ways, depending on whether the clouds are denser than the mesh, or vice versa.
For very dense point clouds, it suffices to take the altitude of the closest point in the cloud.
-If the mesh is denser than the cloud, it is better to use linearised interpolation, obtained by previous triangulation of the point cloud.
-This last method is more accurate but slightly more costly, computationally.
+If the mesh is denser than the cloud, it is better to use linearised interpolation, obtained by previous triangulation of the point cloud.
+This last method is more accurate but slightly more costly, computationally.
-The region names must be selected in correspondance of their group nodes (representing the same geometric face),
-and, for the other node groups, the selection should be *None*.
+The region names must be selected in correspondance of their group of faces (representing the same geometric face),
+and, for the other groups, the selection should be *None*.
|genereInterpolz|
-The script produces several files, whose names are derived from the original file name of the mesh, with different suffixes,
-which are stored in the original file's directory:
+The script produces several files, whose names are derived from the original file name of the mesh, with different suffixes,
+which are stored in the original file's directory:
+
+ * garonne_1.med: original file (z coordinate = 0)
+ * garonne_1.xyz: xyz file (ASCII) of the altitudes at the nodes *(optional)*
+ * garonne_1F.med: calculated value of the Z coordinate and “BOTTOM” field with the Z-value at each node
- * garonne_1.med: original file (z coordinate = 0)
- * garonne_1.xyz: xyz file (ASCII) of the altitudes at the nodes
- * garonne_1Z.med: intermediate step of the script
- * garonne_1F.med: calculated value of the Z coordinate and “BOTTOM” field with the Z-value at each node
+**Remark** : The Z coordinate on mesh nodes is not used by TELEMAC, but is useful for visual control in SMESH.
-To run the script, the HYDRO module for the study must be active. If resuming work on a study that was previously saved,
-the HYDRO module must be activated before running the script
-(simply select HYDRO at least once in order for the data stored in the study file to be read).
+To run the script, the HYDRO module for the study must be active. If resuming work on a study that was previously saved,
+the HYDRO module must be activated before running the script
+(simply select HYDRO at least once in order for the data stored in the study file to be read).
The script is executed manually with the File / Load Script... menu command.
-The script blocks the graphic interface during execution.
-It displays an execution trace in the Python console that is displayed by default in the GEOM and SMESH modules.
+The script blocks the graphic interface during execution.
+It displays an execution trace in the Python console that is displayed by default in the GEOM and SMESH modules.
It is also possible to edit the following script:
-The script needs to be copied and modified as needed for the region names used in the calculation case and for the named groups of mesh nodes.
+The script needs to be copied and modified as needed for the region names used in the calculation case and for the named groups of mesh faces.
.. literalinclude:: ../interpolZ.py
:lines: 1-
Visualisation with the MED module
---------------------------------
-The MED module offers a simple field view of a MED mesh.
+The MED module offers a simple field view of a MED mesh.
The MED module must first be activated, then use the *File/Add Data Source* menu or the equivalent icon and find the *garonne_1F.med* file.
Expanding the *garonne_1F.med* object in the study tree will reveal the *HYDRO_Garonne_1* mesh and the *BOTTOM* field.
Select the field and click on the *scalar map* icon.
-The field is displayed in 3D view. The 3D-view context menu contains the *Representation / Surface with Edges* command
+The field is displayed in 3D view. The 3D-view context menu contains the *Representation / Surface with Edges* command
|Bottom|
underneath the first instance in the study tree. If it is not visible, use the *Refresh* command in the study tree context menu
to update the file list.
-The second mesh is displayed in the SMESH module using the *show* command. For a better relief view, the Z scale needs to be modified
+The second mesh is displayed in the SMESH module using the *show* command. For a better relief view, the Z scale needs to be modified
with the 3D view icon |occ_view_scaling| . In this case, scaling the Z-axis by a factor of 3 is sufficient.
*Remember*: objects are manipulated in 3D view using the <CTRL> key and the mouse buttons or the mouse wheel for zooming.
.. only:: html
- :ref:`ref_exempleInondation`
+ :ref:`ref_english_exempleInondation`
