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43 lines
1.5 KiB
43 lines
1.5 KiB
1 year ago
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_SNAP_TO_CANONICAL_VIEW_QUAT_H
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#define IGL_SNAP_TO_CANONICAL_VIEW_QUAT_H
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#include "igl_inline.h"
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#include <Eigen/Geometry>
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// A Quaternion, q, is defined here as an arrays of four scalars (x,y,z,w),
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// such that q = x*i + y*j + z*k + w
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namespace igl
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{
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/// Snap the quaternion q to the nearest canonical view quaternion
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///
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/// @param[in] q quaternion to be snapped (also see Outputs)
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/// @param[in] threshold (optional) threshold:
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/// 1.0 --> snap any input
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/// 0.5 --> snap inputs somewhat close to canonical views
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/// 0.0 --> snap no input
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/// @param[out] q quaternion possibly set to nearest canonical view
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/// @return true only if q was snapped to the nearest canonical view
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template <typename Scalarq, typename Scalars>
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IGL_INLINE bool snap_to_canonical_view_quat(
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const Eigen::Quaternion<Scalarq> & q,
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const double threshold,
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Eigen::Quaternion<Scalars> & s);
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/// \overload
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template <typename Q_type>
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IGL_INLINE bool snap_to_canonical_view_quat(
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const Q_type* q,
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const Q_type threshold,
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Q_type* s);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "snap_to_canonical_view_quat.cpp"
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#endif
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#endif
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