Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F84742793
MeshTri3.h
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Tue, Sep 24, 15:50
Size
3 KB
Mime Type
text/x-c++
Expires
Thu, Sep 26, 15:50 (1 d, 23 h)
Engine
blob
Format
Raw Data
Handle
21031279
Attached To
rGOOSEFEM GooseFEM
MeshTri3.h
View Options
/**
Generate simple meshes of 3-noded triangular elements in 2d (GooseFEM::Mesh::ElementType::Tri3).
\file MeshTri3.h
\copyright Copyright 2017. Tom de Geus. All rights reserved.
\license This project is released under the GNU Public License (GPLv3).
*/
#ifndef GOOSEFEM_MESHTRI3_H
#define GOOSEFEM_MESHTRI3_H
#include "config.h"
#include "Mesh.h"
namespace GooseFEM {
namespace Mesh {
/**
Simple meshes of and mesh operations for triangular elements of type ElementType::Tri3.
*/
namespace Tri3 {
/**
Regular grid of squares, with each square cut into two triangular elements.
*/
class Regular : public RegularBase2d<Regular> {
public:
/**
Constructor.
\param nelx Number of elements in x-direction.
\param nely Number of elements in y-direction.
\param h Edge-size (of the squares, and thus of two of three element-edges).
*/
Regular(size_t nelx, size_t nely, double h = 1.0);
private:
friend class RegularBase<Regular>;
friend class RegularBase2d<Regular>;
size_t nelx_impl() const;
size_t nely_impl() const;
ElementType getElementType_impl() const;
xt::xtensor<double, 2> coor_impl() const;
xt::xtensor<size_t, 2> conn_impl() const;
xt::xtensor<size_t, 1> nodesBottomEdge_impl() const;
xt::xtensor<size_t, 1> nodesTopEdge_impl() const;
xt::xtensor<size_t, 1> nodesLeftEdge_impl() const;
xt::xtensor<size_t, 1> nodesRightEdge_impl() const;
xt::xtensor<size_t, 1> nodesBottomOpenEdge_impl() const;
xt::xtensor<size_t, 1> nodesTopOpenEdge_impl() const;
xt::xtensor<size_t, 1> nodesLeftOpenEdge_impl() const;
xt::xtensor<size_t, 1> nodesRightOpenEdge_impl() const;
size_t nodesBottomLeftCorner_impl() const;
size_t nodesBottomRightCorner_impl() const;
size_t nodesTopLeftCorner_impl() const;
size_t nodesTopRightCorner_impl() const;
double m_h; ///< See h()
size_t m_nelx; ///< See nelx()
size_t m_nely; ///< See nely()
size_t m_nelem; ///< See nelem()
size_t m_nnode; ///< See nnode()
size_t m_nne; ///< See nne()
size_t m_ndim; ///< See ndim()
};
// read / set the orientation (-1/+1) of all triangles
/**
Read the orientation of a mesh of triangular elements of type ElementType::Tri3.
\param coor Nodal coordinates [nnode, ndim].
\param conn Connectivity [nelem, nne].
\return Orientation (-1 or +1) per element [nelem].
*/
inline xt::xtensor<int, 1> getOrientation(
const xt::xtensor<double, 2>& coor, const xt::xtensor<size_t, 2>& conn);
/**
Set the orientation of a mesh of triangular elements of type ElementType::Tri3.
\param coor Nodal coordinates [nnode, ndim].
\param conn Connectivity [nelem, nne].
\param orientation Target orientation (applied to all elements).
\return Connectivity (order of nodes-per-element may have changed) [nelem, nne].
*/
inline xt::xtensor<size_t, 2> setOrientation(
const xt::xtensor<double, 2>& coor, const xt::xtensor<size_t, 2>& conn, int orientation = -1);
/**
Set the orientation of a mesh of triangular elements of type ElementType::Tri3.
For efficiency this function reuses the output of getOrientation().
\param coor Nodal coordinates [nnode, ndim].
\param conn Connectivity [nelem, nne].
\param current Current orientation per element (output of getOrientation()) [nelem].
\param orientation Target orientation (applied to all elements).
\return Connectivity (order of nodes-per-element may have changed) [nelem, nne].
*/
inline xt::xtensor<size_t, 2> setOrientation(
const xt::xtensor<double, 2>& coor,
const xt::xtensor<size_t, 2>& conn,
const xt::xtensor<int, 1>& current,
int orientation = -1);
} // namespace Tri3
} // namespace Mesh
} // namespace GooseFEM
#include "MeshTri3.hpp"
#endif
Event Timeline
Log In to Comment