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Diffstat (limited to 'extern/solid/src/convex/DT_Box.cpp')
| -rw-r--r-- | extern/solid/src/convex/DT_Box.cpp | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/extern/solid/src/convex/DT_Box.cpp b/extern/solid/src/convex/DT_Box.cpp deleted file mode 100644 index 0b46f566fe8..00000000000 --- a/extern/solid/src/convex/DT_Box.cpp +++ /dev/null @@ -1,112 +0,0 @@ -/* - * SOLID - Software Library for Interference Detection - * - * Copyright (C) 2001-2003 Dtecta. All rights reserved. - * - * This library may be distributed under the terms of the Q Public License - * (QPL) as defined by Trolltech AS of Norway and appearing in the file - * LICENSE.QPL included in the packaging of this file. - * - * This library may be distributed and/or modified under the terms of the - * GNU General Public License (GPL) version 2 as published by the Free Software - * Foundation and appearing in the file LICENSE.GPL included in the - * packaging of this file. - * - * This library is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE - * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * Commercial use or any other use of this library not covered by either - * the QPL or the GPL requires an additional license from Dtecta. - * Please contact info@dtecta.com for enquiries about the terms of commercial - * use of this library. - */ - -#include "DT_Box.h" - -MT_Scalar DT_Box::supportH(const MT_Vector3& v) const -{ - return v.absolute().dot(m_extent); -} - -MT_Point3 DT_Box::support(const MT_Vector3& v) const -{ - return MT_Point3(v[0] < MT_Scalar(0.0) ? -m_extent[0] : m_extent[0], - v[1] < MT_Scalar(0.0) ? -m_extent[1] : m_extent[1], - v[2] < MT_Scalar(0.0) ? -m_extent[2] : m_extent[2]); - -} - - -bool DT_Box::ray_cast(const MT_Point3& source, const MT_Point3& target, - MT_Scalar& param, MT_Vector3& normal) const -{ - T_Outcode source_bits = outcode(source); - T_Outcode target_bits = outcode(target); - - if ((source_bits & target_bits) == 0x0) - // None of the side planes separate the ray from the box. - { - MT_Scalar lambda_enter = MT_Scalar(0.0); - MT_Scalar lambda_exit = param; - MT_Vector3 r = target - source; - T_Outcode normal_bit = 0x0; // Indicates the axis that is returned as normal. - T_Outcode bit = 0x01; - int i; - for (i = 0; i != 3; ++i) - { - if (source_bits & bit) - // Point of intersection is entering - { - MT_Scalar lambda = (-source[i] - m_extent[i]) / r[i]; - if (lambda_enter < lambda) - { - lambda_enter = lambda; - normal_bit = bit; - } - } - else if (target_bits & bit) - // Point of intersection is exiting - { - MT_Scalar lambda = (-source[i] - m_extent[i]) / r[i]; - GEN_set_min(lambda_exit, lambda); - } - bit <<=1; - if (source_bits & bit) - // Point of intersection is entering - { - MT_Scalar lambda = (-source[i] + m_extent[i]) / r[i]; - if (lambda_enter < lambda) - { - lambda_enter = lambda; - normal_bit = bit; - } - } - else if (target_bits & bit) - // Point of intersection is exiting - { - MT_Scalar lambda = (-source[i] + m_extent[i]) / r[i]; - GEN_set_min(lambda_exit, lambda); - } - bit <<=1; - } - if (lambda_enter <= lambda_exit) - // The ray intersects the box - { - param = lambda_enter; - normal.setValue(normal_bit == 0x01 ? -MT_Scalar(1.0) : - normal_bit == 0x02 ? MT_Scalar(1.0) : - MT_Scalar(0.0), - normal_bit == 0x04 ? -MT_Scalar(1.0) : - normal_bit == 0x08 ? MT_Scalar(1.0) : - MT_Scalar(0.0), - normal_bit == 0x10 ? -MT_Scalar(1.0) : - normal_bit == 0x20 ? MT_Scalar(1.0) : - MT_Scalar(0.0)); - return true; - } - } - - return false; -} - - |