A four dimensional vector unit which stores its elements as floats.
Constructors
| Constructor |
Description
|
cVector4f(float, float, float, float) |
Creates a cVector4f with the given element data.
|
Fields
| Field Name |
Type |
Description
|
| w |
float |
The x value of the vector.
|
| x |
float |
The y value of the vector.
|
| y |
float |
The z value of the vector.
|
| z |
float |
The w value of the vector.
|
Functions
| Return Type |
Function Name |
Parameters |
Description
|
float |
GetElement |
uint64 alIdx |
Gets the value at the given index. (Indices 0, 1, 2, and 3 are equal to x, y, z, and w respectively.)
|
float |
Length |
|
Returns the length of this vector.
|
float |
Normalize |
|
Returns the normalization factor for this vector. (See Remarks.)
|
void |
SetElement |
uint64 alIdx,
float |
Sets the value at the given index to the given value. (Indices 0, 1, 2, and 3 are equal to x, y, z, and w respectively.)
|
float |
SqrLength |
|
Returns the length-squared of this vector.
|
A normalized vector is a vector whose length is equal to one, otherwise known as a unit vector. To convert a vector into a unit vector, get the normalization factor by calling the Normalize function, then divide each of the vector's x, y, z, and w coordinates by that factor.
cVector4f vBaseVector(2.0, 5.0, 3.0, 4.0);
float fNormFactor = vBaseVector.Normalize();
cVector3f vNormalizedVector(vBaseVector.x / fNormFactor,
vBaseVector.y / fNormFactor,
vBaseVector.z / fNormFactor,
vBaseVector.w / fNormFactor);
References
See all references...