diff --git a/Common/gmsh.cpp b/Common/gmsh.cpp
index 4b28552f6c0f4693c58c567334b9562242b63b0d..19ce09c27ab6c802196b9edd2b5697a58ec4f1bc 100644
--- a/Common/gmsh.cpp
+++ b/Common/gmsh.cpp
@@ -2814,6 +2814,33 @@ GMSH_API void gmsh::model::mesh::getBasisFunctionsOrientationForElements(
return;
}
+GMSH_API int gmsh::model::mesh::getNumberOfOrientations(const int elementType,
+ const std::string & functionSpaceType)
+{
+ if(!_isInitialized()) { throw - 1; }
+
+ int basisOrder = 0;
+ std::string fsName = "";
+ int numComponents = 0;
+ if(!_getFunctionSpaceInfo(functionSpaceType, fsName, basisOrder,
+ numComponents)) {
+ Msg::Error("Unknown function space type '%s'", functionSpaceType.c_str());
+ throw 2;
+ }
+
+ if(fsName == "Lagrange" || fsName == "GradLagrange") { // Lagrange type
+ return 1;
+ }
+ else { // Hierarchical type
+ const int familyType = ElementType::getParentType(elementType);
+ const unsigned int numVertices = ElementType::getNumVertices(ElementType::getType(familyType, 1, false));
+ const std::size_t factorial[8] = {1, 1, 2, 6, 24, 120, 720, 5040};
+ return factorial[numVertices];
+ }
+
+ return 0;
+}
+
GMSH_API void
gmsh::model::mesh::preallocateBasisFunctionsOrientationForElements(
const int elementType, std::vector<int> &basisFunctionsOrientation,
diff --git a/api/gen.py b/api/gen.py
index 4af8b57bbc8566b1d6fd0c752ec698108181d969..7bd28efa181c12656652b47c2d550c0a492ff999 100644
--- a/api/gen.py
+++ b/api/gen.py
@@ -317,6 +317,9 @@ mesh.add('getBasisFunctions', doc, None, iint('elementType'), ivectordouble('loc
doc = '''Get the orientation index of the elements of type `elementType' in the entity of tag `tag'. The arguments have the same meaning as in `getBasisFunctions'. `basisFunctionsOrientation' is a vector giving for each element the orientation index in the values returned by `getBasisFunctions'. For Lagrange basis functions the call is superfluous as it will return a vector of zeros.'''
mesh.add('getBasisFunctionsOrientationForElements', doc, None, iint('elementType'), istring('functionSpaceType'), ovectorint('basisFunctionsOrientation'), iint('tag','-1'), isize('task', '0'), isize('numTasks', '1'))
+doc = '''Get the number of possible orientations for elements of type `elementType' and function space named `functionSpaceType'.'''
+mesh.add('getNumberOfOrientations', doc, oint, iint('elementType'), istring('functionSpaceType'))
+
doc = '''Preallocate data before calling `getBasisFunctionsOrientationForElements' with `numTasks' > 1. For C and C++ only.'''
mesh.add_special('preallocateBasisFunctionsOrientationForElements', doc, ['onlycc++'], None, iint('elementType'), ovectorint('basisFunctionsOrientation'), iint('tag', '-1'))
diff --git a/api/gmsh.h b/api/gmsh.h
index 8b4855ad8b703447bcce36a531358dcc54dd31b2..8f6280453e830387b3cc7ac93259f56b84abb909 100644
--- a/api/gmsh.h
+++ b/api/gmsh.h
@@ -953,6 +953,13 @@ namespace gmsh { // Top-level functions
const std::size_t task = 0,
const std::size_t numTasks = 1);
+ // gmsh::model::mesh::getNumberOfOrientations
+ //
+ // Get the number of possible orientations for elements of type `elementType'
+ // and function space named `functionSpaceType'.
+ GMSH_API int getNumberOfOrientations(const int elementType,
+ const std::string & functionSpaceType);
+
// gmsh::model::mesh::preallocateBasisFunctionsOrientationForElements
//
// Preallocate data before calling `getBasisFunctionsOrientationForElements'
diff --git a/api/gmsh.h_cwrap b/api/gmsh.h_cwrap
index 4653fec5f0f9fbc669983d1271a18cba79ef6649..d3d3887a268df9a3b9492a0d1c404e914a04ba1e 100644
--- a/api/gmsh.h_cwrap
+++ b/api/gmsh.h_cwrap
@@ -1444,6 +1444,17 @@ namespace gmsh { // Top-level functions
basisFunctionsOrientation.assign(api_basisFunctionsOrientation_, api_basisFunctionsOrientation_ + api_basisFunctionsOrientation_n_); gmshFree(api_basisFunctionsOrientation_);
}
+ // Get the number of possible orientations for elements of type `elementType'
+ // and function space named `functionSpaceType'.
+ inline int getNumberOfOrientations(const int elementType,
+ const std::string & functionSpaceType)
+ {
+ int ierr = 0;
+ int result_api_ = gmshModelMeshGetNumberOfOrientations(elementType, functionSpaceType.c_str(), &ierr);
+ if(ierr) throw ierr;
+ return result_api_;
+ }
+
// Preallocate data before calling `getBasisFunctionsOrientationForElements'
// with `numTasks' > 1. For C and C++ only.
inline void preallocateBasisFunctionsOrientationForElements(const int elementType,
diff --git a/api/gmsh.jl b/api/gmsh.jl
index 7dc02ae0c141964febaa0f613081f59a7c659432..d18a22f961645d23bf6b0665d512b850ac6ca371 100644
--- a/api/gmsh.jl
+++ b/api/gmsh.jl
@@ -1803,6 +1803,23 @@ function getBasisFunctionsOrientationForElements(elementType, functionSpaceType,
return basisFunctionsOrientation
end
+"""
+ gmsh.model.mesh.getNumberOfOrientations(elementType, functionSpaceType)
+
+Get the number of possible orientations for elements of type `elementType` and
+function space named `functionSpaceType`.
+
+Return an integer value.
+"""
+function getNumberOfOrientations(elementType, functionSpaceType)
+ ierr = Ref{Cint}()
+ api__result__ = ccall((:gmshModelMeshGetNumberOfOrientations, gmsh.lib), Cint,
+ (Cint, Ptr{Cchar}, Ptr{Cint}),
+ elementType, functionSpaceType, ierr)
+ ierr[] != 0 && error("gmshModelMeshGetNumberOfOrientations returned non-zero error code: $(ierr[])")
+ return api__result__
+end
+
"""
gmsh.model.mesh.getEdgeNumber(edgeNodes)
diff --git a/api/gmsh.py b/api/gmsh.py
index 52d33510e02ec09af7790c0327d2a437fd73b9d6..c74dcf90d0c6ab135c1f8fb9524aa5cd3690a012 100644
--- a/api/gmsh.py
+++ b/api/gmsh.py
@@ -2330,6 +2330,27 @@ class model:
ierr.value)
return _ovectorint(api_basisFunctionsOrientation_, api_basisFunctionsOrientation_n_.value)
+ @staticmethod
+ def getNumberOfOrientations(elementType, functionSpaceType):
+ """
+ gmsh.model.mesh.getNumberOfOrientations(elementType, functionSpaceType)
+
+ Get the number of possible orientations for elements of type `elementType'
+ and function space named `functionSpaceType'.
+
+ Return an integer value.
+ """
+ ierr = c_int()
+ api__result__ = lib.gmshModelMeshGetNumberOfOrientations(
+ c_int(elementType),
+ c_char_p(functionSpaceType.encode()),
+ byref(ierr))
+ if ierr.value != 0:
+ raise ValueError(
+ "gmshModelMeshGetNumberOfOrientations returned non-zero error code: ",
+ ierr.value)
+ return api__result__
+
@staticmethod
def getEdgeNumber(edgeNodes):
"""
diff --git a/api/gmshc.cpp b/api/gmshc.cpp
index 005283731c61dddb1518419740c0cc3115957cdc..2db6cd2ee5ccd31feb9a329d934072b34c8c2aec 100644
--- a/api/gmshc.cpp
+++ b/api/gmshc.cpp
@@ -1230,6 +1230,19 @@ GMSH_API void gmshModelMeshGetBasisFunctionsOrientationForElements(const int ele
}
}
+GMSH_API int gmshModelMeshGetNumberOfOrientations(const int elementType, const char * functionSpaceType, int * ierr)
+{
+ int result_api_ = 0;
+ if(ierr) *ierr = 0;
+ try {
+ result_api_ = gmsh::model::mesh::getNumberOfOrientations(elementType, functionSpaceType);
+ }
+ catch(int api_ierr_){
+ if(ierr) *ierr = api_ierr_;
+ }
+ return result_api_;
+}
+
GMSH_API void gmshModelMeshPreallocateBasisFunctionsOrientationForElements(const int elementType, int ** basisFunctionsOrientation, size_t * basisFunctionsOrientation_n, const int tag, int * ierr)
{
if(ierr) *ierr = 0;
diff --git a/api/gmshc.h b/api/gmshc.h
index 185caece3bb86752c1bae91779cc9813daf5060a..41ddb6e583927e9d1f9f3d6520124ec2bb9ddacd 100644
--- a/api/gmshc.h
+++ b/api/gmshc.h
@@ -832,6 +832,12 @@ GMSH_API void gmshModelMeshGetBasisFunctionsOrientationForElements(const int ele
const size_t numTasks,
int * ierr);
+/* Get the number of possible orientations for elements of type `elementType'
+ * and function space named `functionSpaceType'. */
+GMSH_API int gmshModelMeshGetNumberOfOrientations(const int elementType,
+ const char * functionSpaceType,
+ int * ierr);
+
/* Preallocate data before calling `getBasisFunctionsOrientationForElements'
* with `numTasks' > 1. For C and C++ only. */
GMSH_API void gmshModelMeshPreallocateBasisFunctionsOrientationForElements(const int elementType,
diff --git a/doc/texinfo/api.texi b/doc/texinfo/api.texi
index 821a04731914fa361ede1190458225ac55e035a7..522b6729230b640276898e0ff2921f1cb6384d56 100644
--- a/doc/texinfo/api.texi
+++ b/doc/texinfo/api.texi
@@ -1464,6 +1464,19 @@ as it will return a vector of zeros.
-
@end table
+@item gmsh/model/mesh/getNumberOfOrientations
+Get the number of possible orientations for elements of type @code{elementType}
+and function space named @code{functionSpaceType}.
+
+@table @asis
+@item Input:
+@code{elementType}, @code{functionSpaceType}
+@item Output:
+-
+@item Return:
+integer value
+@end table
+
@item gmsh/model/mesh/preallocateBasisFunctionsOrientationForElements
Preallocate data before calling @code{getBasisFunctionsOrientationForElements}
with @code{numTasks} > 1. For C and C++ only.