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| t8_geometry (int dimension, const char *name, const char *attribute_name=NULL) |
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| virtual | ~ t8_geometry () |
| | The destructor. More...
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| virtual void | t8_geom_evaluate (t8_cmesh_t cmesh, t8_gloidx_t gtreeid, const double *ref_coords, double out_coords[3]) const =0 |
| | Map a point in the reference space $$[0,1]^dimension$$ to $$\mathbb R^3$$. More...
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| virtual void | t8_geom_evalute_jacobian (t8_cmesh_t cmesh, t8_gloidx_t gtreeid, const double *ref_coords, double *jacobian) const =0 |
| | Compute the jacobian of the t8_geom_evaluate map at a point in the reference space $$[0,1]^dimension$$. More...
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| virtual void | t8_geom_load_tree_data (t8_cmesh_t cmesh, t8_gloidx_t gtreeid)=0 |
| | Update a possible internal data buffer for per tree data. More...
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| int | t8_geom_get_dimension () const |
| | Get the dimension of this geometry. More...
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| const char * | t8_geom_get_name () const |
| | Get the name of this geometry. More...
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int | dimension |
| | The dimension of reference space for which this is a geometry.
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const char * | name |
| | The name of this geometry.
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◆ ~ t8_geometry()
The destructor.
It does nothing but has to be defined since we may want to delete geometry that is actually inherited and providing an implementation for the destructor ensures that the destructor of the child class will be executed.
◆ t8_geom_evaluate()
| virtual void t8_geometry::t8_geom_evaluate |
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t8_cmesh_t |
cmesh, |
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t8_gloidx_t |
gtreeid, |
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const double * |
ref_coords, |
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double |
out_coords[3] |
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pure virtual |
Map a point in the reference space $$[0,1]^dimension$$ to $$\mathbb R^3$$.
- Parameters
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| [in] | cmesh | The cmesh in which the point lies. |
| [in] | gtreeid | The global tree (of the cmesh) in which the reference point is. |
| [in] | ref_coords | Array of dimension many entries, specifying a point in [0,1]^dimension. |
| [out] | out_coords | The mapped coordinates in physical space of ref_coords. |
Implemented in t8_geometry_zero, t8_geometry_linear, and t8_geometry_analytic.
◆ t8_geom_evalute_jacobian()
| virtual void t8_geometry::t8_geom_evalute_jacobian |
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t8_cmesh_t |
cmesh, |
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t8_gloidx_t |
gtreeid, |
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const double * |
ref_coords, |
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double * |
jacobian |
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| const |
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pure virtual |
Compute the jacobian of the t8_geom_evaluate map at a point in the reference space $$[0,1]^dimension$$.
- Parameters
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| [in] | cmesh | The cmesh in which the point lies. |
| [in] | glreeid | The global tree (of the cmesh) in which the reference point is. |
| [in] | ref_coords | Array of dimension many entries, specifying a point in [0,1]^dimension. |
| [out] | jacobian | The jacobian at ref_coords. Array of size dimension x 3. Indices 3*i, 3*i+1, 3*i+2 correspond to the i-th column of the jacobian (Entry 3*i + j is del f_j/del x_i). |
Implemented in t8_geometry_zero, t8_geometry_linear, and t8_geometry_analytic.
◆ t8_geom_get_dimension()
| int t8_geometry::t8_geom_get_dimension |
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const |
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inline |
Get the dimension of this geometry.
- Returns
- The dimension.
◆ t8_geom_get_name()
| const char* t8_geometry::t8_geom_get_name |
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const |
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inline |
Get the name of this geometry.
- Returns
- The name.
◆ t8_geom_load_tree_data()
Update a possible internal data buffer for per tree data.
This function is called before the first coordinates in a new tree are evaluated. You can use it for example to load the vertex coordinates of the tree into an internal buffer (as is done in the linear geometry).
- Parameters
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| [in] | cmesh | The cmesh. |
| [in] | gtreeid | The global tree. |
Implemented in t8_geometry_zero, t8_geometry_analytic, and t8_geometry_w_vertices.
The documentation for this struct was generated from the following file:
