Generate conic spiral surfaces that resemble sea-shells.
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#include <vtkParametricConicSpiral.h>
Generate conic spiral surfaces that resemble sea-shells.
vtkParametricConicSpiral generates conic spiral surfaces. These can resemble sea shells, or may look like a torus "eating" its own tail.
For further information about this surface, please consult the technical description "Parametric surfaces" in http://www.vtk.org/documents.php in the "VTK Technical Documents" section in the VTk.org web pages.
- Thanks:
- Andrew Maclean a.mac.nosp@m.lean.nosp@m.@cas..nosp@m.edu..nosp@m.au for creating and contributing the class.
- Tests:
- vtkParametricConicSpiral (Tests)
Definition at line 40 of file vtkParametricConicSpiral.h.
vtkParametricConicSpiral::vtkParametricConicSpiral |
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vtkParametricConicSpiral::~vtkParametricConicSpiral |
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static int vtkParametricConicSpiral::IsTypeOf |
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const char * |
type | ) |
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virtual int vtkParametricConicSpiral::IsA |
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const char * |
type | ) |
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virtual vtkObjectBase* vtkParametricConicSpiral::NewInstanceInternal |
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const |
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void vtkParametricConicSpiral::PrintSelf |
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ostream & |
os, |
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vtkIndent |
indent |
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Construct a conic spiral surface with the following parameters: MinimumU = 0, MaximumU = 2Pi, MinimumV = 0, MaximumV = 2Pi, JoinU = 0, JoinV = 0, TwistU = 0, TwistV = 0, ClockwiseOrdering = 1, DerivativesAvailable = 1, A = 0.2, B = 1.0, C = 0.1, N = 2.
virtual int vtkParametricConicSpiral::GetDimension |
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virtual void vtkParametricConicSpiral::SetA |
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double |
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Set/Get the scale factor. Default = 0.2
virtual double vtkParametricConicSpiral::GetA |
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Set/Get the scale factor. Default = 0.2
virtual void vtkParametricConicSpiral::SetB |
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double |
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Set/Get the A function coefficient (see equation below). Default = 1.
virtual double vtkParametricConicSpiral::GetB |
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Set/Get the A function coefficient (see equation below). Default = 1.
virtual void vtkParametricConicSpiral::SetC |
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double |
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Set/Get the B function coefficient (see equation below). Default = 0.1.
virtual double vtkParametricConicSpiral::GetC |
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Set/Get the B function coefficient (see equation below). Default = 0.1.
virtual void vtkParametricConicSpiral::SetN |
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double |
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Set/Get the C function coefficient (see equation below). Default = 2.
virtual double vtkParametricConicSpiral::GetN |
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Set/Get the C function coefficient (see equation below). Default = 2.
virtual void vtkParametricConicSpiral::Evaluate |
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double |
uvw[3], |
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double |
Pt[3], |
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double |
Duvw[9] |
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A conic spiral surface. This function performs the mapping
, returning it as Pt. It also returns the partial derivatives Du and Dv.
. Then the normal is
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Implements vtkParametricFunction.
virtual double vtkParametricConicSpiral::EvaluateScalar |
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double |
uvw[3], |
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double |
Pt[3], |
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double |
Duvw[9] |
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Calculate a user defined scalar using one or all of uvw, Pt, Duvw. uvw are the parameters with Pt being the the cartesian point, Duvw are the derivatives of this point with respect to u, v and w. Pt, Duvw are obtained from Evaluate(). This function is only called if the ScalarMode has the value vtkParametricFunctionSource::SCALAR_FUNCTION_DEFINED If the user does not need to calculate a scalar, then the instantiated function should return zero.
Implements vtkParametricFunction.
double vtkParametricConicSpiral::A |
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double vtkParametricConicSpiral::B |
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double vtkParametricConicSpiral::C |
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double vtkParametricConicSpiral::N |
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The documentation for this class was generated from the following file: