#include <vtkPlanes.h>
Inheritance diagram for vtkPlanes:
Public Methods | |
virtual const char * | GetClassName () |
virtual int | IsA (const char *type) |
void | PrintSelf (ostream &os, vtkIndent indent) |
float | EvaluateFunction (float x[3]) |
float | EvaluateFunction (float x, float y, float z) |
void | EvaluateGradient (float x[3], float n[3]) |
virtual void | SetPoints (vtkPoints *) |
virtual vtkPoints * | GetPoints () |
virtual void | SetNormals (vtkNormals *) |
virtual vtkNormals * | GetNormals () |
void | SetFrustumPlanes (float aspect, vtkCamera *camera) |
int | GetNumberOfPlanes () |
vtkPlane * | GetPlane (int i) |
Static Public Methods | |
vtkPlanes * | New () |
int | IsTypeOf (const char *type) |
vtkPlanes * | SafeDownCast (vtkObject *o) |
Protected Methods | |
vtkPlanes () | |
~vtkPlanes () | |
vtkPlanes (const vtkPlanes &) | |
void | operator= (const vtkPlanes &) |
Protected Attributes | |
vtkPoints * | Points |
vtkNormals * | Normals |
vtkPlane * | Plane |
vtkPlanes computes the implicit function and function gradient for a set of planes. The planes must define a convex space.
The function value is the closest first order distance of a point to the convex region defined by the planes. The function gradient is the plane normal at the function value. Note that the normals must point outside of the convex region. Thus, a negative function value means that a point is inside the convex region.
To define the planes you must create two objects: a subclass of vtkPoints (e.g., vtkPoints) and a subclass of vtkNormals (e.g., vtkNormals). The points define a point on the plane, and the normals specify plane normals.
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Evaluate plane equations. Return smallest absolute value. Implements vtkImplicitFunction. |
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Evaluate planes gradient. Implements vtkImplicitFunction. |
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Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImplicitFunction. |
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Return the number of planes in the set of planes. |
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Create and return a pointer to a vtkPlane object at the ith position. It is your responsibility to delete the vtkPlane when done with it. Asking for a plane outside the allowable range returns NULL. |
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Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImplicitFunction. |
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Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImplicitFunction. |
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Create an object with Debug turned off, modified time initialized to zero, and reference counting on. Reimplemented from vtkObject. |
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Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes. Reimplemented from vtkImplicitFunction. |
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Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImplicitFunction. |
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Specify the planes via a camera frustum definition. |
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Specify a list of normal vectors for the planes. There is a one-to-one correspondence between plane points and plane normals. |
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Specify a list of points defining points through which the planes pass. |