OOPSE/libmdtools/Vector3d.cpp

#include "Vector3d.hpp"
#include "Mat3x3d.hpp"

Vector3d& Vector3d::operator*= ( const Mat3x3d & m){
  Vector3d temp;

  temp = *this;
  x = temp.x*m.element[0][0] + temp.y*m.element[1][0] + temp.z* m.element[2][0];
  y = temp.x*m.element[0][1] + temp.y*m.element[1][1] + temp.z* m.element[2][1];
  z = temp.x*m.element[0][2] + temp.y*m.element[1][2] + temp.z* m.element[2][2];

  return *this;
}

Mat3x3d outProduct(const Vector3d& v1, const Vector3d& v2){
  Mat3x3d m;
  
  m.element[0][0] = v1.x * v2.x;
  m.element[0][1] = v1.x * v2.y;
  m.element[0][2] = v1.x * v2.z;

  m.element[1][0] = v1.y * v2.x;
  m.element[1][1] = v1.y * v2.y;
  m.element[1][2] = v1.y * v2.z;

  m.element[2][0] = v1.z * v2.x;
  m.element[2][1] = v1.z * v2.y;
  m.element[2][2] = v1.z * v2.z;

  return m;
}
Revision:	1254
Committed:	Wed Jun 9 16:16:33 2004 UTC (21 years, 4 months ago) by tim
File size:	788 byte(s)
Log Message:	1. adding some useful math classes(Mat3x3d, Vector3d, Quaternion, Euler3) these classes use anonymous union and struct to support double[3], double[3][3] and double[4] 2. adding roll constraint algorithm
#	User	Rev	Content
1	tim	1254	#include "Vector3d.hpp"
2			#include "Mat3x3d.hpp"
3
4			Vector3d& Vector3d::operator*= ( const Mat3x3d & m){
5			Vector3d temp;
6
7			temp = *this;
8			x = temp.xm.element[0][0] + temp.ym.element[1][0] + temp.z* m.element[2][0];
9			y = temp.xm.element[0][1] + temp.ym.element[1][1] + temp.z* m.element[2][1];
10			z = temp.xm.element[0][2] + temp.ym.element[1][2] + temp.z* m.element[2][2];
11
12			return *this;
13			}
14
15			Mat3x3d outProduct(const Vector3d& v1, const Vector3d& v2){
16			Mat3x3d m;
17
18			m.element[0][0] = v1.x * v2.x;
19			m.element[0][1] = v1.x * v2.y;
20			m.element[0][2] = v1.x * v2.z;
21
22			m.element[1][0] = v1.y * v2.x;
23			m.element[1][1] = v1.y * v2.y;
24			m.element[1][2] = v1.y * v2.z;
25
26			m.element[2][0] = v1.z * v2.x;
27			m.element[2][1] = v1.z * v2.y;
28			m.element[2][2] = v1.z * v2.z;
29
30			return m;
31			}