mirror of https://github.com/KLayout/klayout.git
147 lines
3.4 KiB
C++
147 lines
3.4 KiB
C++
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/*
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KLayout Layout Viewer
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Copyright (C) 2006-2023 Matthias Koefferlein
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef HDR_layD25Camera
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#define HDR_layD25Camera
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#include "layPluginCommon.h"
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#include <QMatrix4x4>
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#include <QVector3D>
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namespace lay
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{
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class LAY_PLUGIN_PUBLIC D25Camera
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{
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public:
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D25Camera ();
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virtual ~D25Camera ();
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/**
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* @brief Gets the position of the camera objective in the scene coordinate system
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*/
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QVector3D cam_position () const;
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/**
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* @brief Gets the direction the camera looks into in the scene coordinate system
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*/
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QVector3D cam_direction () const;
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/**
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* @brief Gets the perspective part of the transformation applied transform scene coordinates into the image plane
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* The full transformation for scene to image plane is cam_perspective * cam_trans.
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*/
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QMatrix4x4 cam_perspective () const;
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/**
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* @brief Gets the azimuth/elevation part of the transformation applied transform scene coordinates into the image plane
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* The full transformation for scene to image plane is cam_perspective * cam_trans.
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*/
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QMatrix4x4 cam_trans () const;
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/**
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* @brief Gets the distance of the objective in scene coordinates
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*/
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double cam_dist () const;
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/**
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* @brief Gets the field of view of the camera
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* The field of view is the objective opening angle.
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*/
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double cam_fov () const;
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/**
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* @brief Gets a flag indicating whether top view is enabled
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* In "top view" mode, the elevation is fixed to -90 degree.
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*/
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bool top_view () const
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{
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return m_top_view;
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}
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/**
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* @brief Sets a flag indicating whether top view is enabled
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*/
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void set_top_view (bool f)
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{
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m_top_view = f;
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camera_changed ();
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}
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/**
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* @brief Gets the elevation angle
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* A negative angle means the camera looks down, a positive angle means it looks up.
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*/
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double cam_elevation () const;
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/**
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* @brief Sets the elevation angle
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*/
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void set_cam_elevation (double e)
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{
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m_cam_elevation = e;
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camera_changed ();
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}
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/**
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* @brief Gets the azimuth angle
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* A positive angle means we look from the left. A negative means we look from the right.
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*/
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double cam_azimuth () const;
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/**
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* @brief Sets the azimuth angle
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*/
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void set_cam_azimuth (double a)
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{
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m_cam_azimuth = a;
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camera_changed ();
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}
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/**
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* @brief Resets the camera's orientation
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*/
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void camera_reset ();
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/**
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* @brief Resets the camera's orientation but does not call "camera_changed"
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*/
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void camera_init ();
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protected:
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virtual void camera_changed () { }
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virtual double aspect_ratio () const { return 1.0; }
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private:
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double m_cam_azimuth, m_cam_elevation;
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bool m_top_view;
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QVector3D m_displacement;
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double m_fov;
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};
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}
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#endif
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