Class NURBSControlVertex
See Also: Class NURBSObject, Class NURBSSurface, Class NURBSSet, Class NURBSPoint, Class NURBSCurve, Class NURBSFuseSurfaceCV, Class NURBSFuseCurveCV.
class NURBSControlVertex : public NURBSObject
Description:
This class is available in release 2.0 and later only.
This class represents a control vertex in a NURBS curve. Methods are available to get and set the point position, and get/set the weight.
All methods of this class are implemented by the system.
Methods:
Prototype:
NURBSControlVertex();
Remarks:
Constructor. The name is set to NULL, the points are set to 0.0f and the weight is set to 1.0.
Prototype:
~NURBSControlVertex();
Remarks:
Destructor.
Prototype:
void SetPosition(TimeValue t, Point3 pt);
Remarks:
Sets the position of the control vertex.
Parameters:
TimeValue t
The time to set the position.
Point3 pt
Specifies the position to set.
Prototype:
void SetPosition(TimeValue t, float x, float y, float z);
Remarks:
Sets the position of the control vertex.
Parameters:
TimeValue t
The time to set the position.
float x, float y, float z
Specifies the position to set.
Prototype:
void SetPosition(TimeValue t, double x, double y, double z);
Remarks:
Sets the position of the control vertex.
Parameters:
TimeValue t
The time to set the position.
double x, double y, double z
Specifies the position to set.
Prototype:
Point3 GetPosition(TimeValue t);
Remarks:
Returns the position of the control vertex.
Parameters:
TimeValue t
The time to get the position.
Prototype:
void GetPosition(TimeValue t, float& x, float& y, float& z);
Remarks:
Retrieves the position of the control vertex.
Parameters:
TimeValue t
The time to get the position.
float& x
The X coordinates is returned here.
float& y
The Y coordinates is returned here.
float& z
The Z coordinates is returned here.
Prototype:
void GetPosition(TimeValue t, double& x, double& y, double& z);
Remarks:
Retrieves the position of the control vertex.
Parameters:
TimeValue t
The time to get the position.
double& x
The X coordinates is returned here.
double& y
The Y coordinates is returned here.
double& z
The Z coordinates is returned here.
Prototype:
void SetWeight(TimeValue t, float wt);
Remarks:
Sets the weight of the control vertex.
Parameters:
TimeValue t
The time to set the weight.
float wt
Specifies the weight to set. This is a value greater than zero. Larger values cause the CV to have a greater effect, thus the curve or surface will try to pass closer to the CV.
Prototype:
void SetWeight(TimeValue t, double wt);
Remarks:
Sets the weight of the control vertex.
Parameters:
TimeValue t
The time to set the weight.
double wt
Specifies the weight to set. . This is a value greater than zero. Larger values cause the CV to have a greater effect, thus the curve or surface will try to pass closer to the CV.
Prototype:
void GetWeight(TimeValue t, float& wt);
Remarks:
Retrieves the weight of the control vertex.
Parameters:
TimeValue t
The time to get the weight.
float& wt
The weight is returned here.
Prototype:
double GetWeight(TimeValue t);
Remarks:
Returns the weight of the control vertex.
Parameters:
TimeValue t
The time to get the weight.
Prototype:
void GetWeight(TimeValue t, double& wt);
Remarks:
Retrieves the weight of the control vertex.
Parameters:
TimeValue t
The time to get the weight.
double& wt
The weight is returned here.
Operators:
Prototype:
NURBSControlVertex & operator=(const NURBSControlVertex& cv);
Remarks:
Assignment operator.
Parameters:
const NURBSControlVertex& cv
The control vertex to assign.
Prototype:
BOOL operator==(const NURBSControlVertex& cv);
Remarks:
Equality operator. Compares if the coordinates and weight are the same.
Parameters:
const NURBSControlVertex& cv
The control vertex to compare.
Return Value:
TRUE if the CVs are equal; otherwise FALSE.
Prototype:
BOOL operator!=(const NURBSControlVertex& cv);
Remarks:
Inequality operator. Compares if the coordinates or weight are not the same.
Parameters:
const NURBSControlVertex& cv
The control vertex to compare.
Return Value:
TRUE if the CVs are not equal; otherwise FALSE.