1 files changed, 1 insertions, 51 deletions
diff --git a/model.h b/model.h
index 3c95800..b219f8f 100644
--- a/model.h
+++ b/model.h
@@ -5,57 +5,7 @@
 
 #include <math.h>
 
-struct Point3d
-{
-    float x, y, z;
-
-    Point3d()
-        : x(0)
-        , y(0)
-        , z(0)
-    {
-    }
-
-    Point3d(float x_, float y_, float z_)
-        : x(x_)
-        , y(y_)
-        , z(z_)
-    {
-    }
-
-    Point3d operator-(const Point3d &p) const
-    {
-        return Point3d(x - p.x, y - p.y, z - p.z);
-    }
-
-    Point3d operator+(const Point3d &p) const
-    {
-        return Point3d(x + p.x, y + p.y, z + p.z);
-    }
-
-    Point3d normalize() const
-    {
-        float r = 1. / sqrt(x * x + y * y + z * z);
-        return Point3d(x * r, y * r, z * r);
-    }
-
-    Point3d operator*(float f) const
-    {
-        return Point3d(x * f, y * f, z * f);
-    }
-};
-
-inline float dot(const Point3d &a, const Point3d &b)
-{
-    return a.x * b.x + a.y * b.y + a.z * b.z;
-}
-
-inline Point3d cross(const Point3d &a, const Point3d &b)
-{
-    return Point3d(a.y * b.z - a.z * b.y,
-                   a.z * b.x - a.x * b.z,
-                   a.x * b.y - a.y * b.x);
-}
+#include "point3d.h"
 
 class Model
 {