Space-Project/dependencies/physx-4.1/include/geometry/PxPlaneGeometry.h

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//
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// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
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// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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//
// Copyright (c) 2008-2019 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef PX_PHYSICS_NX_PLANE_GEOMETRY
#define PX_PHYSICS_NX_PLANE_GEOMETRY
/** \addtogroup geomutils
@{
*/
#include "foundation/PxPlane.h"
#include "foundation/PxTransform.h"
#include "geometry/PxGeometry.h"
#include "foundation/PxFoundationConfig.h"
#if !PX_DOXYGEN
namespace physx
{
#endif
/**
\brief Class describing a plane geometry.
The plane geometry specifies the half-space volume x<=0. As with other geometry types,
when used in a PxShape the collision volume is obtained by transforming the halfspace
by the shape local pose and the actor global pose.
To generate a PxPlane from a PxTransform, transform PxPlane(1,0,0,0).
To generate a PxTransform from a PxPlane, use PxTransformFromPlaneEquation.
@see PxShape.setGeometry() PxShape.getPlaneGeometry() PxTransformFromPlaneEquation
*/
class PxPlaneGeometry : public PxGeometry
{
public:
PX_INLINE PxPlaneGeometry() : PxGeometry(PxGeometryType::ePLANE) {}
/**
\brief Returns true if the geometry is valid.
\return True if the current settings are valid
*/
PX_INLINE bool isValid() const;
};
PX_INLINE bool PxPlaneGeometry::isValid() const
{
if (mType != PxGeometryType::ePLANE)
return false;
return true;
}
/** \brief creates a transform from a plane equation, suitable for an actor transform for a PxPlaneGeometry
\param[in] plane the desired plane equation
\return a PxTransform which will transform the plane PxPlane(1,0,0,0) to the specified plane
*/
PX_FOUNDATION_API PxTransform PxTransformFromPlaneEquation(const PxPlane& plane);
/** \brief creates a plane equation from a transform, such as the actor transform for a PxPlaneGeometry
\param[in] transform the transform
\return the plane
*/
PX_INLINE PxPlane PxPlaneEquationFromTransform(const PxTransform& transform)
{
return transform.transform(PxPlane(1.f,0.f,0.f,0.f));
}
#if !PX_DOXYGEN
} // namespace physx
#endif
/** @} */
#endif