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add the possibility to specify the cell size

This commit is contained in:
Massimiliano Corsini 2012-09-19 09:05:40 +00:00
parent a95c0efa2e
commit 47adc093b2
1 changed files with 16 additions and 6 deletions
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14
vcg/space/index/index2D/spatial_hashing_2D.h
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@ -432,7 +432,7 @@ namespace vcg{
/// Insert a mesh in the grid. /// Insert a mesh in the grid.
template <class OBJITER> template <class OBJITER>
void SetByPointers(const OBJITER & _oBegin, const OBJITER & _oEnd, void SetByPointers(const OBJITER & _oBegin, const OBJITER & _oEnd,
bool subdivideBox=false,const Box2x &_bbox=Box2x() ) Point2i & cellsize=Point2i(-1,-1), bool subdivideBox=false,const Box2x &_bbox=Box2x() )
{ {
OBJITER i; OBJITER i;
Box2x b; Box2x b;
@ -454,11 +454,21 @@ namespace vcg{
bbox.Offset(bbox.Diag()/100.0) ; bbox.Offset(bbox.Diag()/100.0) ;
} }
if (cellsize[0] < 0 && cellsize[1] < 0)
{
// cell size estimation
dim = bbox.max - bbox.min; dim = bbox.max - bbox.min;
BestDim2D( _size, dim, siz ); BestDim2D( _size, dim, siz );
// find voxel size
voxel[0] = dim[0]/siz[0]; voxel[0] = dim[0]/siz[0];
voxel[1] = dim[1]/siz[1]; voxel[1] = dim[1]/siz[1];
}
else
{
// cell size assignment
voxel[0] = cellsize[0];
voxel[1] = cellsize[1];
}
cell_size=voxel.Norm(); cell_size=voxel.Norm();
for(i = _oBegin; i!= _oEnd; ++i) for(i = _oBegin; i!= _oEnd; ++i)