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/////////////////////////////////////////////////////////////
// //
// Copyright (c) 2003-2011 by The University of Queensland //
// Earth Systems Science Computational Centre (ESSCC) //
// http://www.uq.edu.au/esscc //
// //
// Primary Business: Brisbane, Queensland, Australia //
// Licensed under the Open Software License version 3.0 //
// http://www.opensource.org/licenses/osl-3.0.php //
// //
/////////////////////////////////////////////////////////////
#include <boost/version.hpp>
#include <boost/python.hpp>
#include "Python/esys/lsm/geometry/MiscPy.h"
#include "Python/esys/lsm/geometry/SimpleSpherePy.h"
#include "Python/esys/lsm/util/BoundingBoxPy.h"
#include "Python/esys/lsm/util/Vec3Py.h"
namespace esys
{
namespace lsm
{
class SolidBoxPy : public BoundingBoxPy
{
public:
SolidBoxPy() : BoundingBoxPy()
{
}
SolidBoxPy(const Vec3Py &minPt, const Vec3Py &maxPt)
: BoundingBoxPy(minPt, maxPt)
{
}
SolidBoxPy(const SolidBoxPy &box)
: BoundingBoxPy(box.getMinPt(), box.getMaxPt())
{
}
SolidBoxPy(const BoundingBoxPy &box)
: BoundingBoxPy(box.getMinPt(), box.getMaxPt())
{
}
SolidBoxPy(const BoundingBox &box)
: BoundingBoxPy(box.getMinPt(), box.getMaxPt())
{
}
/**
* Arvo's algorithm for axis-aligned solid-box/solid-sphere intersection.
*/
bool intersectsWithSphere(const Vec3 ¢re, double radius) const
{
double distSqrd = 0.0;
for (int i = 0; i < 3; i++)
{
if (centre[i] < getMinPt()[i])
{
const double diff = centre[i] - getMinPt()[i];
distSqrd += diff*diff;
}
else if (centre[i] > getMaxPt()[i])
{
const double diff = centre[i] - getMaxPt()[i];
distSqrd += diff*diff;
}
}
return (distSqrd <= (radius*radius));
}
bool intersectsWithSpherePy(const Vec3Py ¢re, double radius) const
{
return intersectsWithSphere(centre, radius);
}
bool intersects(const SimpleSpherePy &p) const
{
return intersectsWithSphere(p.getPos(), p.getRad());
}
};
class HollowBoxPy : public BoundingBoxPy
{
public:
HollowBoxPy() : BoundingBoxPy()
{
}
HollowBoxPy(const Vec3Py &minPt, const Vec3Py &maxPt)
: BoundingBoxPy(minPt, maxPt)
{
}
HollowBoxPy(const HollowBoxPy &box)
: BoundingBoxPy(box.getMinPt(), box.getMaxPt())
{
}
HollowBoxPy(const BoundingBoxPy &box)
: BoundingBoxPy(box.getMinPt(), box.getMaxPt())
{
}
HollowBoxPy(const BoundingBox &box)
: BoundingBoxPy(box.getMinPt(), box.getMaxPt())
{
}
/**
* Arvo's algorithm for axis-aligned hollow-box/solid-sphere intersection.
*/
bool intersectsWithSphere(const Vec3 ¢re, double radius) const
{
double distSqrd = 0;
bool face = false;
for(int i = 0; i < 3; i++)
{
if(centre[i] < getMinPt()[i])
{
face = true;
const double diff = (centre[i] - getMinPt()[i]);
distSqrd += diff*diff;
}
else if (centre[i] > getMaxPt()[i])
{
face = true;
const double diff = centre[i] - getMaxPt()[i];
distSqrd += diff*diff;
}
else if ((centre[i] - getMinPt()[i]) <= radius )
{
face = true;
}
else if ((getMaxPt()[i] - centre[i]) <= radius)
{
face = true;
}
}
return (face && (distSqrd <= radius*radius));
}
bool intersectsWithSpherePy(const Vec3Py ¢re, double radius) const
{
return intersectsWithSphere(centre, radius);
}
bool intersects(const SimpleSpherePy &p) const
{
return intersectsWithSphere(p.getPos(), p.getRad());
}
};
void exportMisc()
{
// Check that Boost 1.34.0 or higher is being used.
// If so, disable auto-generation of C++ signatures for Epydoc
// (which stumbles over indentation in the auto-generated strings).
#if ((BOOST_VERSION / 100000 >= 1) \
&& (BOOST_VERSION / 100 % 1000 >= 34)) \
|| (BOOST_VERSION / 100000 >= 2)
boost::python::docstring_options no_autogen(true,false);
#endif
boost::python::class_<SolidBoxPy, boost::python::bases<BoundingBoxPy> >(
"SolidBox"
)
.def(boost::python::init<>())
.def(boost::python::init<const Vec3Py &, const Vec3Py &>())
.def(boost::python::init<const SolidBoxPy &>())
.def(boost::python::init<const BoundingBoxPy &>())
.def("intersects", &SolidBoxPy::intersects)
.def("intersects", &SolidBoxPy::intersectsWithSpherePy)
;
boost::python::class_<HollowBoxPy, boost::python::bases<BoundingBoxPy> >(
"HollowBox"
)
.def(boost::python::init<>())
.def(boost::python::init<const Vec3Py &, const Vec3Py &>())
.def(boost::python::init<const HollowBoxPy &>())
.def(boost::python::init<const BoundingBoxPy &>())
.def("intersects", &HollowBoxPy::intersects)
.def("intersects", &HollowBoxPy::intersectsWithSpherePy)
;
}
}
}
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