www.pudn.com > Gimcrack-v0.0051-Source.zip > triangle.cpp

#include "triangle.h" 
 
// TODO: Store points and normal + cached public ones 
 
GcTriangle::GcTriangle() 
{ 
} 
 
GcTriangle::GcTriangle( triType tA, triType tB, triType tC ) : a(tA), b(tB), c(tC) 
{ 
} 
 
GcVector3 GcTriangle::Normal() const 
{ 
	// Get 2 vectors from the triangle 
	GcVector3 Vector1 = c - a; 
	GcVector3 Vector2 = b - a; 
 
	// Use the cross product of our 2 vectors to calculate the normal 
	GcVector3 Normal = Vector1.CrossProduct(Vector2); 
 
	// Normalize the normal 
	Normal.Normalize(); 
 
	return Normal; 
}