CubitVector.cpp File Reference

#include <math.h>
#include "CubitVector.hpp"
#include <string>
#include <stdexcept>
#include "CubitPlane.hpp"
#include "GeometryDefines.h"
#include "CubitBox.hpp"

Go to the source code of this file.

Defines
#define	DETERM3(p1, q1, p2, q2, p3, q3)
Functions
CubitVector	vectorRotate (const double angle, const CubitVector &normalAxis, const CubitVector &referenceAxis)
Variables
const double	PI = 3.14159265358979323846
const double	TWO_PI = 2.0 * PI

---

Define Documentation

#define DETERM3	(		p1,
			q1,
			p2,
			q2,
			p3,
			q3
	)

Value:

((q3)*((p2)-(p1)) + \
                                    (q2)*((p1)-(p3)) + \
                                    (q1)*((p3)-(p2)))

---

Function Documentation

CubitVector vectorRotate	(	const double	angle,
		const CubitVector &	normalAxis,
		const CubitVector &	referenceAxis
	)

Definition at line 265 of file CubitVector.cpp.

{
    // A new coordinate system is created with the xy plane corresponding
    // to the plane normal to the normal axis, and the x axis corresponding to
    // the projection of the reference axis onto the normal plane.  The normal
    // plane is the tangent plane at the root point.  A unit vector is
    // constructed along the local x axis and then rotated by the given
    // ccw angle to form the new point.  The new point, then is a unit
    // distance from the global origin in the tangent plane.
  
  double x, y;
  
    // project a unit distance from root along reference axis
  
  CubitVector yAxis = normalAxis * referenceAxis;
  CubitVector xAxis = yAxis * normalAxis;
  yAxis.normalize();
  xAxis.normalize();
  
  x = cos(angle);
  y = sin(angle);
  
  xAxis *= x;
  yAxis *= y;
  return CubitVector(xAxis + yAxis);
}

---

Variable Documentation

const double PI = 3.14159265358979323846

Definition at line 19 of file CubitVector.cpp.

const double TWO_PI = 2.0 * PI

Definition at line 21 of file CubitVector.cpp.