public void RotateRightFlat(float deg, float dir)
{
Matrix3D rotMat = Rotate(m_zaxis, deg * dir);
m_target = rotMat.Transform(m_target);
m_right = rotMat.Transform(m_right);
m_up = rotMat.Transform(m_up);
/*m_target = m_lookat - m_eye; // The "look-at" unit vector.
* m_target.Normalize();
* m_right = Vector3d.cross(m_target, m_up);*/
UpdateView();
}
void Rotate(Matrix3D rotmat)
{
for (int c = 0; c < m_lstpoints.Count; c++)
{
Point3d p = (Point3d)m_lstpoints[c];
Point3d p1 = rotmat.Transform(p);
p.x = p1.x;
p.y = p1.y;
p.z = p1.z;
}
}
private void TransformRange(Matrix3D tMat, int startidx, int endidx)
{
for (int c = startidx; c < endidx; c++)
{
Point3d p3 = tMat.Transform(m_lstpoints[c]);
m_lstpoints[c].x = p3.x;
m_lstpoints[c].y = p3.y;
m_lstpoints[c].z = p3.z;
}
// Update(); // not necessary
m_listid = -1; // regenerate the list id
}
// rotate eye deg degrees arround rotAxis pivoting at target (m_lookat)
protected Matrix3D Rotate(Vector3d rotAxis, float deg)
{
float rad = deg2rad * deg;
float c = (float)Math.Cos(rad);
float s = (float)Math.Sin(rad);
float t = 1.0f - c;
float x = rotAxis.x;
float y = rotAxis.y;
float z = rotAxis.z;
Matrix3D rotMat = new Matrix3D(new float [] {
t *x *x + c, t *x *y - s *z, t *x *z + s *y, 0,
t *x *y + s *z, t *y *y + c, t *y *z - s *x, 0,
t *x *z - s *y, t *y *z + s *x, t *z *z + c, 0,
0, 0, 0, 1
});
m_eye = rotMat.Transform(m_eye - m_lookat);
m_eye = m_eye + m_lookat;
return(rotMat);
}
public void Rotate(float x, float y, float z)
{
Point3d center = CalcCenter();
Translate((float)-center.x, (float)-center.y, (float)-center.z);
Matrix3D rotmat = new Matrix3D();
rotmat.Identity();
rotmat.Rotate(x, y, z);
for (int c = 0; c < m_lstpoints.Count; c++)
{
Point3d p = (Point3d)m_lstpoints[c];
Point3d p1 = rotmat.Transform(p);
p.x = p1.x;
p.y = p1.y;
p.z = p1.z;
}
Translate((float)center.x, (float)center.y, (float)center.z);
}
public void Rotate(float x, float y, float z)
{
Point3d center = CalcCenter();
Translate((float)-center.x, (float)-center.y, (float)-center.z);
Matrix3D rotmat = new Matrix3D();
rotmat.Identity();
rotmat.Rotate(x, y, z);
for(int c = 0; c< m_lstpoints.Count;c++)
{
Point3d p = (Point3d)m_lstpoints[c];
Point3d p1 = rotmat.Transform(p);
p.x = p1.x;
p.y = p1.y;
p.z = p1.z;
}
Translate((float)center.x, (float)center.y, (float)center.z);
}
// rotate eye deg degrees arround rotAxis pivoting at target (m_lookat)
protected Matrix3D Rotate(Vector3d rotAxis, float deg)
{
float rad = deg2rad * deg;
float c = (float)Math.Cos(rad);
float s = (float)Math.Sin(rad);
float t = 1.0f - c;
float x = rotAxis.x;
float y = rotAxis.y;
float z = rotAxis.z;
Matrix3D rotMat= new Matrix3D(new float [] {
t*x*x+c, t*x*y-s*z, t*x*z+s*y, 0,
t*x*y+s*z, t*y*y+c, t*y*z-s*x, 0,
t*x*z-s*y, t*y*z+s*x, t*z*z+c, 0,
0,0,0,1
});
m_eye = rotMat.Transform(m_eye - m_lookat);
m_eye = m_eye + m_lookat;
return rotMat;
}
private void TransformRange(Matrix3D tMat, int startidx, int endidx)
{
for (int c = startidx; c < endidx; c++)
{
Point3d p3 = tMat.Transform(m_lstpoints[c]);
m_lstpoints[c].x = p3.x;
m_lstpoints[c].y = p3.y;
m_lstpoints[c].z = p3.z;
}
// Update(); // not necessary
m_listid = -1; // regenerate the list id
}
void Rotate(Matrix3D rotmat)
{
for (int c = 0; c < m_lstpoints.Count; c++)
{
Point3d p = (Point3d)m_lstpoints[c];
Point3d p1 = rotmat.Transform(p);
p.x = p1.x;
p.y = p1.y;
p.z = p1.z;
}
}
