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// SPDX-License-Identifier: GPL-2.0-or-later
/**
* Perspective line for 3D perspectives
*
* Authors:
* Maximilian Albert <Anhalter42@gmx.de>
*
* Copyright (C) 2007 authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include "perspective-line.h"
namespace Box3D {
PerspectiveLine::PerspectiveLine (Geom::Point const &pt, Proj::Axis const axis, Persp3D const *persp) :
Line (pt, persp->get_VP(axis).affine(), true)
{
g_assert (persp != nullptr);
if (!persp->get_VP(axis).is_finite()) {
Proj::Pt2 vp(persp->get_VP(axis));
this->set_direction(Geom::Point(vp[Proj::X], vp[Proj::Y]));
}
this->vp_dir = axis;
this->persp = persp;
}
} // namespace Box3D
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8 :
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