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added a function to approximate a far plane value given a shot and the mesh bbox

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Marco Callieri 2006-12-18 15:26:24 +00:00
parent 5360cc0977
commit 02f23020fc
1 changed files with 32 additions and 0 deletions
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32
wrap/gl/shot.h
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@ -23,6 +23,9 @@
/****************************************************************************
History
$Log: not supported by cvs2svn $
Revision 1.10 2006/12/18 14:28:07 matteodelle
*** empty log message ***
Revision 1.9 2006/12/18 09:46:39 callieri
camera+shot revamp: changed field names to something with more sense, cleaning of various functions, correction of minor bugs/incongruences, removal of the infamous reference in shot.
@ -130,6 +133,35 @@ static void UnsetView()
glPopAttrib();
}
/// given a shot and the mesh bounding box, returns an approximate far plane distance
/// distance is always approximated by excess
static ScalarType GetFarPlane(vcg::Shot<ScalarType> & shot, vcg::Box3<ScalarType> bbox)
{
ScalarType farDist;
Point3<ScalarType> farcorner;
Point3<ScalarType> campos = shot.Extrinsics.tra;
if (abs(campos.X() - mainmodel->bbox.max.X()) > abs(campos.X() - bbox.min.X()))
farcorner.X() = mainmodel->bbox.max.X();
else
farcorner.X() = mainmodel->bbox.min.X();
if (abs(campos.Y() - mainmodel->bbox.max.Y()) > abs(campos.Y() - bbox.min.Y()))
farcorner.Y() = mainmodel->bbox.max.Y();
else
farcorner.Y() = mainmodel->bbox.min.Y();
if (abs(campos.Z() - mainmodel->bbox.max.Z()) > abs(campos.Z() - bbox.min.Z()))
farcorner.Z() = mainmodel->bbox.max.Z();
else
farcorner.Z() = mainmodel->bbox.min.Z();
farDist = (campos - farcorner).Norm();
return farDist;
}
static void SetSubView(vcg::Shot<ScalarType> & shot,
vcg::Point2<ScalarType> p1,
vcg::Point2<ScalarType> p2)