You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.4 KiB
52 lines
1.4 KiB
2 years ago
|
/*=========================================================================
|
||
|
|
|
||
|
|
Program: Visualization Toolkit
|
||
|
|
Module: $RCSfile: vtkCone.cxx,v $
|
||
|
|
|
||
|
|
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
|
||
|
|
All rights reserved.
|
||
|
|
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
|
||
|
|
|
||
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
||
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
||
|
|
PURPOSE. See the above copyright notice for more information.
|
||
|
|
|
||
|
|
=========================================================================*/
|
||
|
|
#include "vtkCone.h"
|
||
|
|
#include "vtkMath.h"
|
||
|
|
#include "vtkObjectFactory.h"
|
||
|
|
|
||
|
|
vtkCxxRevisionMacro(vtkCone, "$Revision: 1.26 $");
|
||
|
|
vtkStandardNewMacro(vtkCone);
|
||
|
|
|
||
|
|
// Construct cone with angle of 45 degrees.
|
||
|
|
vtkCone::vtkCone()
|
||
|
|
{
|
||
|
|
this->Angle = 45.0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Evaluate cone equation.
|
||
|
|
double vtkCone::EvaluateFunction(double x[3])
|
||
|
|
{
|
||
|
|
double tanTheta = (double)
|
||
|
|
tan((double)this->Angle*vtkMath::DegreesToRadians());
|
||
|
|
return x[1]*x[1] + x[2]*x[2] - x[0]*x[0]*tanTheta*tanTheta;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Evaluate cone normal.
|
||
|
|
void vtkCone::EvaluateGradient(double x[3], double g[3])
|
||
|
|
{
|
||
|
|
double tanTheta = (double)
|
||
|
|
tan((double)this->Angle*vtkMath::DegreesToRadians());
|
||
|
|
g[0] = -2.0*x[0]*tanTheta*tanTheta;
|
||
|
|
g[1] = 2.0*x[1];
|
||
|
|
g[2] = 2.0*x[2];
|
||
|
|
}
|
||
|
|
|
||
|
|
void vtkCone::PrintSelf(ostream& os, vtkIndent indent)
|
||
|
|
{
|
||
|
|
this->Superclass::PrintSelf(os,indent);
|
||
|
|
|
||
|
|
os << indent << "Angle: " << this->Angle << "\n";
|
||
|
|
}
|