A two dimensional vector unit whose elements are stored as floats.
Fields
Field Name |
Type |
Description
|
x |
float |
The x value of the vector.
|
y |
float |
The y value of the vector.
|
Functions
Return Type |
Function Name |
Parameters |
Description
|
float |
GetElement |
uint64 alIdx |
Gets the value at the given index. (Indices 0 and 1 are equal to x and y, 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 and 1 are equal to x and y, 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 and y coordinates by that factor.
cVector2f vBaseVector(2.0, 5.0);
float fNormFactor = vBaseVector.Normalize();
cVector2f vNormalizedVector(vBaseVector.x / fNormFactor,
vBaseVector.y / fNormFactor);