#include <vtkPlanes.h>
Inheritance diagram for vtkPlanes:
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.
There are several methods to define the set of planes. The most general is to supply an instance of vtkPoints and an instance of vtkDataArray. (The points define a point on the plane, and the normals corresponding plane normals.) Two other specialized ways are to 1) supply six planes defining the view frustrum of a camera, and 2) provide a bounding box.
Definition at line 52 of file vtkPlanes.h.
Public Types | |
typedef vtkImplicitFunction | Superclass |
Public Member Functions | |
virtual const char * | GetClassName () |
virtual int | IsA (const char *type) |
void | PrintSelf (ostream &os, vtkIndent indent) |
void | EvaluateGradient (double x[3], double n[3]) |
void | SetFrustumPlanes (double planes[24]) |
int | GetNumberOfPlanes () |
vtkPlane * | GetPlane (int i) |
double | EvaluateFunction (double x[3]) |
double | EvaluateFunction (double x, double y, double z) |
virtual void | SetPoints (vtkPoints *) |
virtual vtkPoints * | GetPoints () |
void | SetNormals (vtkDataArray *normals) |
virtual vtkDataArray * | GetNormals () |
void | SetBounds (double bounds[6]) |
void | SetBounds (double xmin, double xmax, double ymin, double ymax, double zmin, double zmax) |
Static Public Member Functions | |
vtkPlanes * | New () |
int | IsTypeOf (const char *type) |
vtkPlanes * | SafeDownCast (vtkObject *o) |
Protected Member Functions | |
vtkPlanes () | |
~vtkPlanes () | |
Protected Attributes | |
vtkPoints * | Points |
vtkDataArray * | Normals |
vtkPlane * | Plane |
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Reimplemented from vtkImplicitFunction. Definition at line 56 of file vtkPlanes.h. |
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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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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 vtkTypeRevisionMacro found in vtkSetGet.h. Reimplemented from vtkImplicitFunction.
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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 vtkTypeRevisionMacro found in vtkSetGet.h. Reimplemented from vtkImplicitFunction.
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Reimplemented from vtkImplicitFunction.
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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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Evaluate plane equations. Return smallest absolute value. Implements vtkImplicitFunction.
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Evaluate plane equations. Return smallest absolute value. Reimplemented from vtkImplicitFunction. Definition at line 62 of file vtkPlanes.h. References vtkImplicitFunction::EvaluateFunction(). |
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Evaluate planes gradient. Implements vtkImplicitFunction.
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Specify a list of points defining points through which the planes pass. |
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Specify a list of points defining points through which the planes pass. |
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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 normal vectors for the planes. There is a one-to-one correspondence between plane points and plane normals. |
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An alternative method to specify six planes defined by the camera view frustrum. See vtkCamera::GetFrustumPlanes() documentation. |
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An alternative method to specify six planes defined by a bounding box. The bounding box is a six-vector defined as (xmin,xmax,ymin,ymax,zmin,zmax). It defines six planes orthogonal to the x-y-z coordinate axes. |
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An alternative method to specify six planes defined by a bounding box. The bounding box is a six-vector defined as (xmin,xmax,ymin,ymax,zmin,zmax). It defines six planes orthogonal to the x-y-z coordinate axes. |
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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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Definition at line 109 of file vtkPlanes.h. |
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Definition at line 110 of file vtkPlanes.h. |
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Definition at line 111 of file vtkPlanes.h. |