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author | Narayan Kamath <narayan@google.com> | 2012-11-02 10:59:05 +0000 |
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committer | Xiaotao Duan <xiaotao@google.com> | 2012-11-07 14:17:48 -0800 |
commit | c981c48f5bc9aefeffc0bcb0cc3934c2fae179dd (patch) | |
tree | 54d1c7d66098154c1d7c5bd414394ef4cf255810 /demos/opengl/trackball.h | |
parent | 63f67d748682b46d58be31235a0a2d64d81b998c (diff) | |
download | eigen-kitkat-cts-release.tar.gz |
Initial import of eigen 3.1.1android-cts-4.4_r4android-cts-4.2_r2android-4.4_r1.2.0.1android-4.4_r1.2android-4.4_r1.1.0.1android-4.4_r1.1android-4.4_r1.0.1android-4.4_r1android-4.4_r0.9android-4.4_r0.8android-4.3_r2.3android-4.3_r2.2android-4.3_r2.1android-4.3_r2android-4.3_r1.1android-4.3_r1android-4.3_r0.9.1android-4.3_r0.9android-4.2.2_r1.2android-4.2.2_r1.1android-4.2.2_r1kitkat-releasekitkat-cts-releasejb-mr2.0-releasejb-mr2-releasejb-mr1.1-releasejb-mr1.1-dev
Added a README.android and a MODULE_LICENSE_MPL2 file.
Added empty Android.mk and CleanSpec.mk to optimize Android build.
Non MPL2 license code is disabled in ./Eigen/src/Core/util/NonMPL2.h.
Trying to include such files will lead to an error.
Change-Id: I0e148b7c3e83999bcc4dfaa5809d33bfac2aac32
Diffstat (limited to 'demos/opengl/trackball.h')
-rw-r--r-- | demos/opengl/trackball.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/demos/opengl/trackball.h b/demos/opengl/trackball.h new file mode 100644 index 000000000..1ea842f11 --- /dev/null +++ b/demos/opengl/trackball.h @@ -0,0 +1,42 @@ +// 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/. + +#ifndef EIGEN_TRACKBALL_H +#define EIGEN_TRACKBALL_H + +#include <Eigen/Geometry> + +class Camera; + +class Trackball +{ + public: + + enum Mode {Around, Local}; + + Trackball() : mpCamera(0) {} + + void start(Mode m = Around) { mMode = m; mLastPointOk = false; } + + void setCamera(Camera* pCam) { mpCamera = pCam; } + + void track(const Eigen::Vector2i& newPoint2D); + + protected: + + bool mapToSphere( const Eigen::Vector2i& p2, Eigen::Vector3f& v3); + + Camera* mpCamera; + Eigen::Vector3f mLastPoint3D; + Mode mMode; + bool mLastPointOk; + +}; + +#endif // EIGEN_TRACKBALL_H |