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