diff options
Diffstat (limited to 'extern/solid/src/convex/DT_Cone.cpp')
| -rwxr-xr-x | extern/solid/src/convex/DT_Cone.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/extern/solid/src/convex/DT_Cone.cpp b/extern/solid/src/convex/DT_Cone.cpp new file mode 100755 index 00000000000..1dd6a7ddbbe --- /dev/null +++ b/extern/solid/src/convex/DT_Cone.cpp @@ -0,0 +1,48 @@ +/* + * 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_Cone.h" + +MT_Point3 DT_Cone::support(const MT_Vector3& v) const +{ + MT_Scalar v_len = v.length(); + + if (v[1] > v_len * sinAngle) + { + return MT_Point3(MT_Scalar(0.0), halfHeight, MT_Scalar(0.0)); + } + else + { + MT_Scalar s = MT_sqrt(v[0] * v[0] + v[2] * v[2]); + if (s != MT_Scalar(0.0)) + { + MT_Scalar d = bottomRadius / s; + return MT_Point3(v[0] * d, -halfHeight, v[2] * d); + } + else + { + return MT_Point3(bottomRadius, -halfHeight, MT_Scalar(0.0)); + } + } +} + |