From cca66b9ec4e494c1d919bff0f71a820d8afab1fa Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:24:48 +0200 Subject: Adding upstream version 1.2.2. Signed-off-by: Daniel Baumann --- src/perspective-line.cpp | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 src/perspective-line.cpp (limited to 'src/perspective-line.cpp') diff --git a/src/perspective-line.cpp b/src/perspective-line.cpp new file mode 100644 index 0000000..afa3278 --- /dev/null +++ b/src/perspective-line.cpp @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** + * Perspective line for 3D perspectives + * + * Authors: + * Maximilian Albert + * + * 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 : -- cgit v1.2.3