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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Img3D/View/Camera.h
//! @brief Defines class Camera.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#ifndef BORNAGAIN_IMG3D_VIEW_CAMERA_H
#define BORNAGAIN_IMG3D_VIEW_CAMERA_H
#include "Img3D/Type/CameraParams.h"
#include "Img3D/Type/FloatVector3D.h"
#include <QColor>
#include <QMatrix4x4>
#include <QObject>
#include <QQuaternion>
namespace Img3D {
class Canvas;
class Camera : public QObject {
Q_OBJECT
public:
Camera();
void lookAt(const CameraParams&); //!< camera position for 3D object
void lookAt3DAxes(const CameraParams&); //!< camera position for 3D axes
const CameraParams& getPos() const { return pos; }
const CameraParams& getPos3DAxes() const { return pos3DAxes; }
void set();
void setAspectRatio(float);
void zoomBy(float);
void endTransform(bool keep);
const QMatrix4x4& matModel() const { return m_mat_model; }
const QMatrix4x4& matProj() const { return m_mat_proj; }
const QMatrix4x4& matAxes() const { return m_mat_model3DAxes; }
const F3 lightPosRotated() const { return lightPosRotated1; }
// Flying Camera implementation (similar to Blender's camera system)
void horizontalTurn(float theta);
void verticalTurn(float theta);
signals:
void updated(Camera const&);
private:
// camera setup
CameraParams pos;
CameraParams pos3DAxes;
float zoom;
float vertAngle, nearPlane, farPlane;
// light
F3 lightPos1, lightPosRotated1;
// transformation
QQuaternion addRot; // rotation, additional rotation
QMatrix4x4 m_mat_model;
QMatrix4x4 m_mat_proj;
QMatrix4x4 m_mat_model3DAxes;
};
} // namespace Img3D
#endif // BORNAGAIN_IMG3D_VIEW_CAMERA_H
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