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0024019: Voxel_FastConverter: filling problem

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Added a new method filling the inner part of a shape with voxels. The advantages of using this method are:
- processing vertical faces
- correct processing of 'concave' shapes
Added QA command OCC24019 for issue 24019 and test case bugs/vis/bug24019
This commit is contained in:
Pawel
2013-07-04 14:29:08 +04:00
parent 9c9a29ea5c
commit 4bee43a928
5 changed files with 168 additions and 0 deletions
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11
src/Voxel/Voxel_FastConverter.cdl
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@@ -100,6 +100,17 @@ is
ithread : Integer from Standard = 1)
---Purpose: Fills-in volume of the shape by a value.
returns Boolean from Standard;
FillInVolume(me : in out;
inner : Byte from Standard;
shape : Shape from TopoDS;
ithread : Integer from Standard = 1)
---Purpose: Fills-in volume of the shape by a value.
-- Uses the topological information from the provided shape
-- to judge whether points are inside the shape or not
-- (only when processing vertical faces).
-- The inner value has to be positive.
returns Boolean from Standard;
---Category: Private area

98
src/Voxel/Voxel_FastConverter.cxx
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@@ -35,6 +35,7 @@
#include <ElSLib.hxx>
#include <Poly_Triangulation.hxx>
#include <IntAna2d_AnaIntersection.hxx>
#include <BRepClass3d_SolidClassifier.hxx>
// Printing the progress in stdout.
//#define CONV_DUMP
@@ -531,6 +532,103 @@ Standard_Boolean Voxel_FastConverter::FillInVolume(const Standard_Byte inner,
return Standard_True;
}
Standard_Boolean Voxel_FastConverter::FillInVolume(const Standard_Byte inner, const TopoDS_Shape & shape, const Standard_Integer ithread)
{
Voxel_DS* ds = (Voxel_DS*) myVoxels;
Standard_Integer ix, iy, iz, nbx = ds->GetNbX(), nby = ds->GetNbY(), nbz = ds->GetNbZ();
Standard_Boolean prev_surface, surface, volume, isOnVerticalSurface;
BRepClass3d_SolidClassifier solidClassifier(shape);
Standard_Real xc, yc, zc;
if (inner)
{
// Fill-in internal voxels by the value "inner"
for (ix = 0; ix < nbx; ix++)
{
for (iy = 0; iy < nby; iy++)
{
// Check existence of volume.
volume = Standard_False;
surface = Standard_False;
prev_surface = Standard_False;
isOnVerticalSurface = Standard_False;
for (iz = 0; iz < nbz; iz++)
{
surface = (myIsBool == 1) ?
((Voxel_BoolDS*)myVoxels)->Get(ix, iy, iz) == Standard_True :
((Voxel_ColorDS*)myVoxels)->Get(ix, iy, iz) > 0;
if (prev_surface && !surface)
{
if(isOnVerticalSurface)
{
isOnVerticalSurface = Standard_False;
((Voxel_BoolDS*)myVoxels)->GetCenter(ix, iy, iz, xc, yc, zc);
gp_Pnt P(xc, yc, zc);
solidClassifier.Perform(P, Precision::Confusion());
if(solidClassifier.State() == TopAbs_IN)
volume = Standard_True;
else
volume = Standard_False;
}
else
volume = !volume;
}
if(prev_surface && surface)
isOnVerticalSurface = Standard_True;
else
isOnVerticalSurface = Standard_False;
prev_surface = surface;
}
if (volume)
continue;
// Fill-in the volume.
volume = Standard_False;
surface = Standard_False;
prev_surface = Standard_False;
isOnVerticalSurface = Standard_False;
for (iz = 0; iz < nbz; iz++)
{
surface = (myIsBool == 1) ?
((Voxel_BoolDS*)myVoxels)->Get(ix, iy, iz) == Standard_True :
((Voxel_ColorDS*)myVoxels)->Get(ix, iy, iz) > 0;
if (prev_surface && !surface)
{
if(isOnVerticalSurface)
{
isOnVerticalSurface = Standard_False;
((Voxel_BoolDS*)myVoxels)->GetCenter(ix, iy, iz, xc, yc, zc);
gp_Pnt P(xc, yc, zc);
solidClassifier.Perform(P, Precision::Confusion());
if(solidClassifier.State() == TopAbs_IN)
volume = Standard_True;
else
volume = Standard_False;
}
else
volume = !volume;
}
if (volume && !surface)
{
(myIsBool == 1) ? ((Voxel_BoolDS*)myVoxels)->Set(ix, iy, iz, inner) :
((Voxel_ColorDS*)myVoxels)->Set(ix, iy, iz, inner);
}
if(prev_surface && surface)
isOnVerticalSurface = Standard_True;
else
isOnVerticalSurface = Standard_False;
prev_surface = surface;
}
}
}
}
return Standard_True;
}
void Voxel_FastConverter::GetBndBox(const gp_Pnt& p1,
const gp_Pnt& p2,
const gp_Pnt& p3,