// This file is part of libigl, a simple c++ geometry processing library.
// 
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
// 
// This Source Code Form is subject to the terms of the Mozilla Public License 
// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
// obtain one at http://mozilla.org/MPL/2.0/.
#include "Camera.h"
#include "canonical_quaternions.h"
#include <algorithm>

igl::Camera::Camera():
  zoom(1.0),
  angle(45)
{
  using namespace igl;
  using namespace std;
  // Defaults
  // canonical (X,Y) view
  copy(XY_PLANE_QUAT_D,XY_PLANE_QUAT_D+4,rotation);
  pan[0] = 0.0;
  pan[1] = 0.0;
  pan[2] = 0.0;
}

igl::Camera::Camera(const Camera & that):
  zoom(that.zoom),
  angle(that.angle)
{
  pan[0] = that.pan[0];
  pan[1] = that.pan[1];
  pan[2] = that.pan[2];
  for(int i = 0; i<4; i++)
  {
    rotation[i] = that.rotation[i];
  }
}