mirror of https://github.com/KLayout/klayout.git
114 lines
1.9 KiB
C++
114 lines
1.9 KiB
C++
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/*
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KLayout Layout Viewer
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Copyright (C) 2006-2020 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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#include "layD25Camera.h"
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#include <QWidget>
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#include "math.h"
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namespace lay
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{
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D25Camera::D25Camera ()
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{
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init ();
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}
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D25Camera::~D25Camera ()
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{
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// .. nothing yet ..
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}
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void
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D25Camera::init ()
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{
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m_fov = 90.0;
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m_cam_azimuth = m_cam_elevation = 0.0;
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m_top_view = false;
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}
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void
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D25Camera::camera_reset ()
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{
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init ();
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camera_changed ();
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}
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double
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D25Camera::cam_fov () const
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{
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return m_fov; // @@@
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}
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double
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D25Camera::cam_dist () const
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{
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return 4.0; // @@@
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}
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QVector3D
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D25Camera::cam_direction () const
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{
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return cam_trans ().inverted ().map (QVector3D (0, 0, -1));
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}
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QVector3D
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D25Camera::cam_position () const
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{
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return cam_direction () * -cam_dist ();
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}
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double
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D25Camera::cam_azimuth () const
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{
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return m_cam_azimuth;
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}
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double
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D25Camera::cam_elevation () const
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{
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return m_top_view ? -90.0 : m_cam_elevation;
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}
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QMatrix4x4
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D25Camera::cam_perspective () const
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{
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QMatrix4x4 t;
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t.perspective (cam_fov (), aspect_ratio (), 0.1f, 10000.0f);
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t.translate (QVector3D (0.0, 0.0, -cam_dist ()));
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return t;
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}
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QMatrix4x4
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D25Camera::cam_trans () const
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{
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QMatrix4x4 t;
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t.rotate (-cam_elevation (), 1.0, 0.0, 0.0);
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t.rotate (cam_azimuth (), 0.0, 1.0, 0.0);
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return t;
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}
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}
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