Vector4& Vector4::Normalize(void)
{
float mag = ComputeMagnitude();
x /= mag;
y /= mag;
z /= mag;
w /= mag;
return *this;
}
/**
sets the vector to new components.
*/
void vectorNode::SetComponents(double p0, double p1, double p2)
{
pv_p[0] = p0;
pv_p[1] = p1;
pv_p[2] = p2;
// recompute magnitute and nullity
ComputeMagnitude();
pv_is_null = isNull();
}
/**
sets the vector to new components.
*/
void aVector::SetVector(double p0, double p1, double p2)
{
pv_p[0] = p0;
pv_p[1] = p1;
pv_p[2] = p2;
// recompute magnitute and nullity
ComputeMagnitude();
pv_is_null = isNullVector();
}
/**
this constructor builds the vector with the values passed
(the components in the stated order)
*/
vectorNode::vectorNode(double p0, double p1, double p2)
: pv_size(3)
{
pv_p = new double[pv_size];
pv_p[0] = p0;
pv_p[1] = p1;
pv_p[2] = p2;
ComputeMagnitude(); // compute and store vector mag
pv_is_null = isNull();
}
/**
this defines a default behaviour. the vector is set
to a unit vector with components (1,0,0).
note that the size is always 3.
*/
vectorNode::vectorNode()
: pv_size(3)
{
pv_p = new double[pv_size];
pv_p[0] = 1.0; // set default values
pv_p[1] = 0.0;
pv_p[2] = 0.0;
ComputeMagnitude(); // compute and store vector mag
pv_is_null = false;
}
/**
set the i-th component of the vector
*/
void aVector::SetAComp(int i, double p_val)
{
#ifdef CHECKBOUNDS_ON
CheckBounds(i);
#endif
pv_p[i] = p_val;
// recompute magnitude and nullity
ComputeMagnitude();
pv_is_null = isNullVector();
}
/**
this defines a default behaviour. the vector is set
to a unit vector with components (1,0,0).
note that the size is always 3.
*/
aVector::aVector()
: pv_size(3)
{
pv_p = new double[pv_size]; // allocate space
pv_p[0] = 1.0; // set default values
pv_p[1] = 0.0;
pv_p[2] = 0.0;
ComputeMagnitude(); // compute and store vector mag
pv_bln_true = TRUE;
pv_bln_false = FALSE;
pv_is_null = pv_bln_false;
}
/**
this constructor builds the vector with the values passed
(the components in the stated order)
*/
aVector::aVector(double p0, double p1, double p2)
: pv_size(3)
{
pv_p = new double[pv_size]; // allocate space
pv_p[0] = p0;
pv_p[1] = p1;
pv_p[2] = p2;
ComputeMagnitude(); // compute and store vector mag
pv_is_null = isNullVector();
pv_bln_true = TRUE;
pv_bln_false = FALSE;
}