vec4.cpp File Reference

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Detailed Description

Implementation of vector class.

#include "vec4.h"
#include <iostream>
#include <cstring>
#include <cmath>
#include "matrix4x4.h"

Include dependency graph for vec4.cpp:

Functions
Vec4	cross (Vec4 v1, Vec4 v2)
	Cross product operator.
float	dot (Vec4 v1, Vec4 v2)
	Calculates the dot product.

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Function Documentation

Vec4 cross (  Vec4  v1, Vec4  v2 )

Cross product operator. Calculates the normal vector to the plane described by the input vectors. Sets the fourth cell to zero as a cross product will never be a point. Parameters: v1  Input vector (3D). v2  Input vector (3D). Returns: vector to complete right hand frame (or whatever).

float dot (  Vec4  v1, Vec4  v2 )

Calculates the dot product. We're ignoring the fourth cell for the moment. However, if code is written carefully enough, then it may be included again.

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