#include </usr1/tp517/Tumble/trunk/src/tumble/cell.h>
Inheritance diagram for GhostTriangle:
Public Member Functions | |
| GhostTriangle (const BezierTriangle &bt) | |
| Create a GhostTriangle as a copy of a BezierTriangle. | |
| GhostTriangle () | |
| Create an empty GhostTriangle. | |
| virtual | ~GhostTriangle () |
| void | set_cp (int i, Point2D p) |
| Set the value at a ControlPoint. | |
| Point2D | get_cp (int i) const |
| Get the value at a ControlPoint. | |
| void | jacobian_matrix (double u, double v, Point2D &pdu, Point2D &pdv) const |
| Calculate the jacobian at a point. | |
| double | jacobian (double alpha, double beta) const |
| Get the Jacobian determinate at a point. | |
| LinearData | dataeval (double u, double v) const |
| Interpolate data at point (u,v). | |
| Point2D | eval (double u, double v) const |
| Interpolate geometry at point (u,v). | |
| void | print () const |
| Print info. | |
| void | print_mathematica () const |
| Print info in mathematica format. | |
Public Attributes | |
| Point2D | cp [6] |
| LinearData | dp [6] |
Private Member Functions | |
| GhostTriangle (const GhostTriangle &) | |
| GhostTriangle & | operator= (const GhostTriangle &) |
Friends | |
| std::ostream & | operator<< (std::ostream &stream, const GhostTriangle &t) |
When doing reinterpolation there is a point where we would like to have a pair of triangles as they looked before a modification and a pair of triangles as they look after the modification. The problem is that BezierTriangles are strongly tied in with the CellComplex. They have no real control over thier data points, they only have pointers. Thus, it is impossible to have the two sets of triangles described above because once the modification takes place, all the old data is gone.
Hence the need for a GhostTriangle. It acts as a snapshot copy of a BezierTriangle. Hence it is like a 'ghost' image of a dead triangle. The main difference between a GhostTriangle and BezierTriangle is that a GhostTriangle holds all the actual data, not just pointers to it.
Thus when it comes time for reinterpolation, we can save the images of the triangles before the modification in GhostTriangles, and then destroy them later, without having to mess with the complexity of the CellComplex.
Both GhostTiangles and BezierTriangles inherit from a CurvedTriangle which provides the NewtonFind method, as, both types of triangles rely on this important method.
Definition at line 827 of file cell.h.
| GhostTriangle::GhostTriangle | ( | const BezierTriangle & | bt | ) |
Create a GhostTriangle as a copy of a BezierTriangle.
Definition at line 2209 of file cell.C.
References cp, dp, BezierTriangle::get_cp(), and BezierTriangle::get_dp().
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| GhostTriangle::GhostTriangle | ( | ) |
| virtual GhostTriangle::~GhostTriangle | ( | ) | [inline, virtual] |
| GhostTriangle::GhostTriangle | ( | const GhostTriangle & | ) | [private] |
| void GhostTriangle::set_cp | ( | int | i, | |
| Point2D | p | |||
| ) |
| Point2D GhostTriangle::get_cp | ( | int | i | ) | const |
| void GhostTriangle::jacobian_matrix | ( | double | u, | |
| double | v, | |||
| Point2D & | pdu, | |||
| Point2D & | pdv | |||
| ) | const [virtual] |
Calculate the jacobian at a point.
This is the same a BezierTriangle::jacobian_matrix(double, double, Point2D&, Point2D &)
| u | The first param | |
| v | The second param | |
| [out] | pdu | A vector representing the partial derivative with respect to u |
| [out] | pdv | A vector representing the partial derivative with respect to v |
Implements CurvedTriangle.
Definition at line 2258 of file cell.C.
References cp.
Referenced by jacobian().
| double GhostTriangle::jacobian | ( | double | u, | |
| double | v | |||
| ) | const |
Get the Jacobian determinate at a point.
This is the same as BezierTriangle::jacobian(double, double)
| u | The first param | |
| v | The second param |
Definition at line 2242 of file cell.C.
References Point2D::cross(), and jacobian_matrix().
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| LinearData GhostTriangle::dataeval | ( | double | u, | |
| double | v | |||
| ) | const |
Interpolate data at point (u,v).
This is the same as BezierTriangle::dataeval(double,double)
| u | The first param | |
| v | The second param |
Definition at line 2301 of file cell.C.
References dp.
Referenced by BezierMesh::interpolant_error().
| Point2D GhostTriangle::eval | ( | double | u, | |
| double | v | |||
| ) | const [virtual] |
Interpolate geometry at point (u,v).
This is the same as BezierTriangle::eval(double,double)
| u | The first param | |
| v | The second param |
Implements CurvedTriangle.
Definition at line 2280 of file cell.C.
References cp.
| void GhostTriangle::print_mathematica | ( | ) | const |
Print info in mathematica format.
Definition at line 2321 of file cell.C.
References cp, Point2D::x(), and Point2D::y().
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| GhostTriangle& GhostTriangle::operator= | ( | const GhostTriangle & | ) | [private] |
| std::ostream& operator<< | ( | std::ostream & | stream, | |
| const GhostTriangle & | t | |||
| ) | [friend] |
Array of actual geometric data, not pointers
Definition at line 830 of file cell.h.
Referenced by eval(), get_cp(), GhostTriangle(), jacobian_matrix(), operator<<(), print_mathematica(), and set_cp().
Array of actual functional data, not pointers
Definition at line 831 of file cell.h.
Referenced by dataeval(), GhostTriangle(), and operator<<().
1.5.2