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- // 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_CAMERA_H
- #define EIGEN_CAMERA_H
- #include <Eigen/Geometry>
- #include <QObject>
- // #include <frame.h>
- class Frame
- {
- public:
- EIGEN_MAKE_ALIGNED_OPERATOR_NEW
-
- inline Frame(const Eigen::Vector3f& pos = Eigen::Vector3f::Zero(),
- const Eigen::Quaternionf& o = Eigen::Quaternionf())
- : orientation(o), position(pos)
- {}
- Frame lerp(float alpha, const Frame& other) const
- {
- return Frame((1.f-alpha)*position + alpha * other.position,
- orientation.slerp(alpha,other.orientation));
- }
- Eigen::Quaternionf orientation;
- Eigen::Vector3f position;
- };
- class Camera
- {
- public:
- EIGEN_MAKE_ALIGNED_OPERATOR_NEW
- Camera(void);
-
- Camera(const Camera& other);
-
- virtual ~Camera();
-
- Camera& operator=(const Camera& other);
-
- void setViewport(uint offsetx, uint offsety, uint width, uint height);
- void setViewport(uint width, uint height);
-
- inline uint vpX(void) const { return mVpX; }
- inline uint vpY(void) const { return mVpY; }
- inline uint vpWidth(void) const { return mVpWidth; }
- inline uint vpHeight(void) const { return mVpHeight; }
- inline float fovY(void) const { return mFovY; }
- void setFovY(float value);
-
- void setPosition(const Eigen::Vector3f& pos);
- inline const Eigen::Vector3f& position(void) const { return mFrame.position; }
- void setOrientation(const Eigen::Quaternionf& q);
- inline const Eigen::Quaternionf& orientation(void) const { return mFrame.orientation; }
- void setFrame(const Frame& f);
- const Frame& frame(void) const { return mFrame; }
-
- void setDirection(const Eigen::Vector3f& newDirection);
- Eigen::Vector3f direction(void) const;
- void setUp(const Eigen::Vector3f& vectorUp);
- Eigen::Vector3f up(void) const;
- Eigen::Vector3f right(void) const;
-
- void setTarget(const Eigen::Vector3f& target);
- inline const Eigen::Vector3f& target(void) { return mTarget; }
-
- const Eigen::Affine3f& viewMatrix(void) const;
- const Eigen::Matrix4f& projectionMatrix(void) const;
-
- void rotateAroundTarget(const Eigen::Quaternionf& q);
- void localRotate(const Eigen::Quaternionf& q);
- void zoom(float d);
-
- void localTranslate(const Eigen::Vector3f& t);
-
- /** Setup OpenGL matrices and viewport */
- void activateGL(void);
-
- Eigen::Vector3f unProject(const Eigen::Vector2f& uv, float depth, const Eigen::Matrix4f& invModelview) const;
- Eigen::Vector3f unProject(const Eigen::Vector2f& uv, float depth) const;
-
- protected:
- void updateViewMatrix(void) const;
- void updateProjectionMatrix(void) const;
- protected:
- uint mVpX, mVpY;
- uint mVpWidth, mVpHeight;
- Frame mFrame;
-
- mutable Eigen::Affine3f mViewMatrix;
- mutable Eigen::Matrix4f mProjectionMatrix;
- mutable bool mViewIsUptodate;
- mutable bool mProjIsUptodate;
- // used by rotateAroundTarget
- Eigen::Vector3f mTarget;
-
- float mFovY;
- float mNearDist;
- float mFarDist;
- };
- #endif // EIGEN_CAMERA_H
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