abstract interface for implicit functions
virtual double EvaluateFunction(double x[3])=0
implicit function for a cone
#define vtkGetMacro(name, type)
double EvaluateFunction(double x, double y, double z)
#define vtkSetClampMacro(name, type, min, max)
virtual void EvaluateGradient(double x[3], double g[3])=0
GLint GLint GLint GLint GLint GLint y
#define vtkTypeMacro(thisClass, superclass)
GLint GLint GLint GLint GLint x
a simple class to control print indentation
void PrintSelf(ostream &os, vtkIndent indent)
#define VTKCOMMONDATAMODEL_EXPORT