From 15626bfe9098070808ca90160a8df8049f923e9b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Georges=20Dup=C3=A9ron?= <jahvascriptmaniac+github@free.fr>
Date: Wed, 18 Jan 2012 16:57:54 +0100
Subject: [PATCH] =?UTF-8?q?Suppression=20d'une=20fonction=202D=20qui=20n'?=
 =?UTF-8?q?=C3=A9tait=20plus=20utilis=C3=A9e.?=
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---
 geometry/vertex.cpp | 13 -------------
 geometry/vertex.hh  |  1 -
 2 files changed, 14 deletions(-)

diff --git a/geometry/vertex.cpp b/geometry/vertex.cpp
index 5ca7ce3..e46c526 100644
--- a/geometry/vertex.cpp
+++ b/geometry/vertex.cpp
@@ -10,19 +10,6 @@ Vertex::Vertex(float _x, float _y, float _z): x(_x), y(_y), z(_z) {
 
 float Vertex::norm() const { return std::sqrt(x*x + y*y + z*z); }
 
-// TODO : Ce code ne marche qu'en 2D !
-Vertex intersection(Vertex a, Vertex b, Vertex c, Vertex d) {
-	// Note : si les deux lignes sont parallèles, on risque fort
-	// d'avoir une division par zéro.
-	// http://en.wikipedia.org/wiki/Line-line_intersection
-	float denominator =  ((a.x-b.x)*(c.y-d.y) - (a.y-b.y)*(c.x-d.x));
-	return Vertex(
-		((a.x*b.y-a.y*b.x)*(c.x-d.x) - (a.x-b.x)*(c.x*d.y-c.y*d.x)) / denominator,
-		((a.x*b.y-a.y*b.x)*(c.y-d.y) - (a.y-b.y)*(c.x*d.y-c.y*d.x)) / denominator,
-		0
-	);
-}
-
 Vertex Vertex::projectOn(Vertex v) const {
 	// http://www.developpez.net/forums/d202580/applications/developpement-2d-3d-jeux/contribuez/faq-mat-quat-ajout-calculs-vectoriels/
 	float scalaire = (this->x)*(v.x) + (this->y)*(v.y) + (this->z)*(v.z);
diff --git a/geometry/vertex.hh b/geometry/vertex.hh
index 17f9e01..8bc2532 100644
--- a/geometry/vertex.hh
+++ b/geometry/vertex.hh
@@ -18,7 +18,6 @@ class Vertex {
 	float cosAngle(Vertex v) const; // cosinus de l'angle entre this et v.
 	float angle(Vertex v) const; // Angle entre this et v.
 	static Vertex fromSpherical(float r, float xAngle, float yAngle);
-	friend Vertex intersection(Vertex a, Vertex b, Vertex c, Vertex d); // Intersection entre (a,b) et (c,d).
 
 	public :
 	friend std::ostream& operator<<(std::ostream& os, const Vertex& v);