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This paragraph will be re-written according to the user feedback.
-
-- Object overlap or lines that are very close will lead to an ugly mesh or one that is too fine.
-- Avoid using too many points in the splines, when they are not necessary.
+- Object overlap or lines that are very close will lead to an ugly mesh or one that is too fine.
+
+- Avoid using too many points in the splines, when they are not necessary.
-Anything that will lead to unnecessary complexity of the partitioning when the case is created
and prevent the use of the automatic mode for grouping zones into regions should be avoided.
-
-- Change of coordinate system: it is best to define a local reference point as early as possible. See tutorial.
+
+- Change of coordinate system: it is best to define a local reference point as early as possible. See tutorial.
- The two coordinate systems appear, but it is preferable for the transition from one to the other to be made simply
- (the coordinates of the new origin are rounded).
+ (the coordinates of the new origin are rounded).
- Consistency of the imported data coordinate systems should be maintained:
for example, put everything into Lambert 93 coordinates before import.
- Avoid the use of acute angles at domain limits: risk of creating over-constrained triangles,
- which means detecting them and inverting the diagonals.
-
-
-- traiter les nuages de points trop volumineux avant de les importer dans SALOME-HYDRO, par exemple en utilisant
- l'outil *cloudCompare* pour faire une décimation du nuage selon la courbure de celui-ci.
-
-- enregistrer très régulièrement l'étude, en la renommant de façon à conserver des étapes successives.
- Cela peut s'avérer très utile en cas d'erreur intempestive...
-
-- ne pas utiliser de caractères spéciaux (espaces, accents...) dans les noms des objets.
-
-- donner des noms significatifs aux différents objets (ils sont vite très nombreux dans une étude réaliste),
- aini qu'aux hypothèses de maillage.
-
-- il est important de bien choisir où commence une ligne fermée de type spline :
- Ce premier point reste présent jusqu'au maillage, et peut poser une contrainte inutile si il est mal placé.
- Dans le dessin d'un lit mineur, on fait généralement un contour fermé débortdant du domaine d'étude. Il est judicieux
- de mettre ce premier point hors du domaine.
-
-- dans la construction d'un domaine d'étude contenant un fleuve, il faut veiller à couper celui-ci perpendiculairement
- à son axe, pour pouvoir définir des conditions aux limites correctes.
-
-
-- Use of the spline type or polyline type?
+ which means detecting them and inverting the diagonals.
+
+- Save regularly the study and renaming it to preserve successive steps.
+ This can be useful in case of error.
+
+- Do not use special characters (spaces, accents...) in the names of the objects.
+
+- Give meaningful names to the different objects (a lot in a complex study),
+ as well as meshing hypotheses.
+
+- It is important to choose well where a closed line of spline type starts:
+ This first point remains until meshing, and can add an unnecessary constraint if it is misplaced.
+ During the drawing riverbed, most of the time, a closed contour bigger than the study area is used.
+ It is wise to put this first point out of the study area.
+
+- In the case of river study, pay attention to cut the river perpendicularly to the hydraulic axe
+ to be able to define the boundary conditions properly.
+
+- Use of the spline type or polyline type?
* *spline*: a single smooth line that has a continuous derivative, passing through all the points.
This type of line is preferred for all curved lines, the control points will not be reused in the mesh,
- which provides greater flexibility in controlling the mesh refinement.
+ which provides greater flexibility in controlling the mesh refinement.
* *polyline*: a single continuous line, composed of straight segments.
This type of line must be used for the artificial objects composed of straight segments and whenever
- broken lines are needed. The points are kept in the mesh.
+ broken lines are needed. The points are kept in the mesh.
+ * The two types of lines can be combined: see the section on handling polylines.
- * Les deux types de lignes peuvent être combinés : voir le chapitre sur la manipulation de polylignes.
-
.. only:: html
- :ref:`ref_notionsPrealables`
+ :ref:`ref_english_notionsPrealables`
