don't index Eigen

1 files changed, 0 insertions, 59 deletions

diff --git a/eigen/demos/opengl/trackball.cpp b/eigen/demos/opengl/trackball.cpp
deleted file mode 100644
index 7c2da8e..0000000
--- a/eigen/demos/opengl/trackball.cpp
+++ /dev/null
@@ -1,59 +0,0 @@
-// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra.
-//
-// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
-//
-// 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 "trackball.h"
-#include "camera.h"
-
-using namespace Eigen;
-
-void Trackball::track(const Vector2i& point2D)
-{
-  if (mpCamera==0)
-    return;
-  Vector3f newPoint3D;
-  bool newPointOk = mapToSphere(point2D, newPoint3D);
-
-  if (mLastPointOk && newPointOk)
-  {
-    Vector3f axis = mLastPoint3D.cross(newPoint3D).normalized();
-    float cos_angle = mLastPoint3D.dot(newPoint3D);
-    if ( std::abs(cos_angle) < 1.0 )
-    {
-      float angle = 2. * acos(cos_angle);
-      if (mMode==Around)
-        mpCamera->rotateAroundTarget(Quaternionf(AngleAxisf(angle, axis)));
-      else
-        mpCamera->localRotate(Quaternionf(AngleAxisf(-angle, axis)));
-    }
-  }
-
-  mLastPoint3D = newPoint3D;
-  mLastPointOk = newPointOk;
-}
-
-bool Trackball::mapToSphere(const Vector2i& p2, Vector3f& v3)
-{
-  if ((p2.x() >= 0) && (p2.x() <= int(mpCamera->vpWidth())) &&
-      (p2.y() >= 0) && (p2.y() <= int(mpCamera->vpHeight())) )
-  {
-    double x  = (double)(p2.x() - 0.5*mpCamera->vpWidth())  / (double)mpCamera->vpWidth();
-    double y  = (double)(0.5*mpCamera->vpHeight() - p2.y()) / (double)mpCamera->vpHeight();
-    double sinx         = sin(M_PI * x * 0.5);
-    double siny         = sin(M_PI * y * 0.5);
-    double sinx2siny2   = sinx * sinx + siny * siny;
-
-    v3.x() = sinx;
-    v3.y() = siny;
-    v3.z() = sinx2siny2 < 1.0 ? sqrt(1.0 - sinx2siny2) : 0.0;
-
-    return true;
-  }
-  else
-    return false;
-}