vcglib/apps/test/extractors/extractor/Volume.h

91 lines
2.0 KiB
C++

#ifndef __VCGTEST_VOLUME
#define __VCGTEST_VOLUME
#include "ImplicitSphere.h"
#include "SphereUnion.h"
#include "SphereDifference.h"
class Volume
{
public:
Volume()
{
ImplicitSphere s1(vcg::Point3f(-5.0, 0.0, 0.0), 10.0);
ImplicitSphere s2(vcg::Point3f( 5.0, 5.0, 3.0), 7.0);
ImplicitSphere s3(vcg::Point3f( 1.0, 0.0, 10.0), 6.0);
SphereUnion sphere_union(s1, s2);
SphereDifference sphere_difference(sphere_union, s3);
_sphere_diff = sphere_difference;
}
float V(const int pi, const int pj, const int pk)
{
return _sphere_diff.V(pi, pj, pk);
}
void GetXIntercept(const vcg::Point3i &p1, const vcg::Point3i &p2, VertexPointer &v)
{
vcg::Point3f p, n;
float d;
if (_sphere_diff.DirectedDistance(p1, p2, p, n, d))
{
v->P() = p;
v->N() = n;
}
else
{
float f1 = V(p1.X(), p1.Y(), p1.Z());
float f2 = V(p2.X(), p2.Y(), p2.Z());
float u = (float) f1/(f1-f2);
v->P().X() = (float) p1.X()*(1-u) + u*p2.X();
v->P().Y() = (float) p1.Y();
v->P().Z() = (float) p1.Z();
}
}
void GetYIntercept(const vcg::Point3i &p1, const vcg::Point3i &p2, VertexPointer &v)
{
vcg::Point3f p, n;
float d;
if (_sphere_diff.DirectedDistance(p1, p2, p, n, d))
{
v->P() = p;
v->N() = n;
}
else
{
float f1 = V(p1.X(), p1.Y(), p1.Z());
float f2 = V(p2.X(), p2.Y(), p2.Z());
float u = (float) f1/(f1-f2);
v->P().X() = (float) p1.X();
v->P().Y() = (float) p1.Y()*(1-u) + u*p2.Y();
v->P().Z() = (float) p1.Z();
}
}
void GetZIntercept(const vcg::Point3i &p1, const vcg::Point3i &p2, VertexPointer &v)
{
vcg::Point3f p, n;
float d;
if (_sphere_diff.DirectedDistance(p1, p2, p, n, d))
{
v->P() = p;
v->N() = n;
}
else
{
float f1 = V(p1.X(), p1.Y(), p1.Z());
float f2 = V(p2.X(), p2.Y(), p2.Z());
float u = (float) f1/(f1-f2);
v->P().X() = (float) p1.X();
v->P().Y() = (float) p1.Y();
v->P().Z() = (float) p1.Z()*(1-u) + u*p2.Z();
}
}
private:
SphereDifference _sphere_diff;
};
#endif // __VCGTEST_VOLUME