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0030232: Visualization, StdPrs_BndBox - support Bnd_OBB in addition to Bnd_Box

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This commit is contained in:
kgv 2018-10-11 16:05:32 +03:00 committed by apn
parent 5e30547b63
commit c3749171b7
3 changed files with 148 additions and 36 deletions
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12
src/Bnd/Bnd_OBB.hxx
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@ -22,6 +22,7 @@
#include <Standard_Boolean.hxx>
#include <Bnd_Box.hxx>
#include <gp_Ax3.hxx>
#include <gp_Dir.hxx>
#include <gp_Pnt.hxx>
#include <gp_XYZ.hxx>
@ -137,6 +138,14 @@ public:
myHDims[2] = theHZSize;
}
//! Returns the local coordinates system of this oriented box.
//! So that applying it to axis-aligned box ((-XHSize, -YHSize, -ZHSize), (XHSize, YHSize, ZHSize)) will produce this oriented box.
//! @code
//! gp_Trsf aLoc;
//! aLoc.SetTransformation (theOBB.Position(), gp::XOY());
//! @endcode
gp_Ax3 Position() const { return gp_Ax3 (myCenter, ZDirection(), XDirection()); }
//! Returns the center of OBB
const gp_XYZ& Center() const
{
@ -267,7 +276,8 @@ public:
//! (which it was created from) and theP.
Standard_EXPORT void Add(const gp_Pnt& theP);
protected:
protected:
void ProcessOnePoint(const gp_Pnt& theP)
{
myIsAABox = Standard_True;

54
src/StdPrs/StdPrs_BndBox.cxx
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@ -15,20 +15,7 @@
#include <StdPrs_BndBox.hxx>
#include <Aspect_TypeOfLine.hxx>
#include <Graphic3d_AspectLine3d.hxx>
#include <Graphic3d_ArrayOfPolylines.hxx>
#include <Prs3d_LineAspect.hxx>
#include <Quantity_Color.hxx>
namespace
{
static const Standard_Integer THE_INDICES[][3] =
{ { 0, 0, 0 }, { 1, 0, 0 }, { 1, 0, 1 }, { 0, 0, 1 },
{ 0, 1, 1 }, { 1, 1, 1 }, { 1, 1, 0 }, { 0, 1, 0 },
{ 0, 0, 0 }, { 0, 0, 1 }, { 1, 0, 1 }, { 1, 1, 1 },
{ 0, 1, 1 }, { 0, 1, 0 }, { 1, 1, 0 }, { 1, 0, 0 } };
}
//=======================================================================
//function : Add
@ -38,25 +25,30 @@ void StdPrs_BndBox::Add (const Handle(Prs3d_Presentation)& thePresentation,
const Bnd_Box& theBndBox,
const Handle(Prs3d_Drawer)& theDrawer)
{
if (theBndBox.IsVoid())
if (!theBndBox.IsVoid())
{
return;
}
Standard_Real X[2], Y[2], Z[2];
theBndBox.Get (X[0], Y[0], Z[0], X[1], Y[1], Z[1]);
Handle(Graphic3d_Group) aGroup = Prs3d_Root::CurrentGroup (thePresentation);
Quantity_Color aColor = theDrawer->LineAspect()->Aspect()->Color();
Standard_Real aWidth = theDrawer->LineAspect()->Aspect()->Width();
aGroup->SetGroupPrimitivesAspect (new Graphic3d_AspectLine3d (aColor, Aspect_TOL_DOTDASH, aWidth));
Handle(Graphic3d_ArrayOfPolylines) aPolyline = new Graphic3d_ArrayOfPolylines(16);
for(Standard_Integer aVertIter = 0; aVertIter < 16; ++aVertIter)
{
aPolyline->AddVertex (X[THE_INDICES[aVertIter][0]],
Y[THE_INDICES[aVertIter][1]],
Z[THE_INDICES[aVertIter][2]]);
aGroup->SetGroupPrimitivesAspect (new Graphic3d_AspectLine3d (theDrawer->LineAspect()->Aspect()->Color(),
Aspect_TOL_DOTDASH,
theDrawer->LineAspect()->Aspect()->Width()));
aGroup->AddPrimitiveArray (FillSegments (theBndBox));
}
}
//=======================================================================
//function : Add
//purpose :
//=======================================================================
void StdPrs_BndBox::Add (const Handle(Prs3d_Presentation)& thePresentation,
const Bnd_OBB& theBndBox,
const Handle(Prs3d_Drawer)& theDrawer)
{
if (!theBndBox.IsVoid())
{
Handle(Graphic3d_Group) aGroup = Prs3d_Root::CurrentGroup (thePresentation);
aGroup->SetGroupPrimitivesAspect (new Graphic3d_AspectLine3d (theDrawer->LineAspect()->Aspect()->Color(),
Aspect_TOL_DOTDASH,
theDrawer->LineAspect()->Aspect()->Width()));
aGroup->AddPrimitiveArray (FillSegments (theBndBox));
}
aGroup->AddPrimitiveArray (aPolyline);
}

114
src/StdPrs/StdPrs_BndBox.hxx
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@ -16,10 +16,12 @@
#ifndef _StdPrs_BndBox_H__
#define _StdPrs_BndBox_H__
#include <Prs3d_Root.hxx>
#include <Bnd_OBB.hxx>
#include <Graphic3d_ArrayOfSegments.hxx>
#include <Graphic3d_ArrayOfTriangles.hxx>
#include <Prs3d_Drawer.hxx>
#include <Prs3d_Presentation.hxx>
#include <Bnd_Box.hxx>
#include <Prs3d_Root.hxx>
//! Tool for computing bounding box presentation.
class StdPrs_BndBox : public Prs3d_Root
@ -33,6 +35,114 @@ public:
Standard_EXPORT static void Add (const Handle(Prs3d_Presentation)& thePresentation,
const Bnd_Box& theBndBox,
const Handle(Prs3d_Drawer)& theDrawer);
//! Computes presentation of a bounding box.
//! @param thePresentation [in] the presentation.
//! @param theBndBox [in] the bounding box.
//! @param theDrawer [in] the drawer.
Standard_EXPORT static void Add (const Handle(Prs3d_Presentation)& thePresentation,
const Bnd_OBB& theBndBox,
const Handle(Prs3d_Drawer)& theDrawer);
public:
//! Create primitive array with line segments for displaying a box.
//! @param theBox [in] the box to add
static Handle(Graphic3d_ArrayOfSegments) FillSegments (const Bnd_OBB& theBox)
{
if (theBox.IsVoid())
{
return Handle(Graphic3d_ArrayOfSegments)();
}
Handle(Graphic3d_ArrayOfSegments) aSegs = new Graphic3d_ArrayOfSegments (8, 12 * 2);
FillSegments (aSegs, theBox);
return aSegs;
}
//! Create primitive array with line segments for displaying a box.
//! @param theBox [in] the box to add
static Handle(Graphic3d_ArrayOfSegments) FillSegments (const Bnd_Box& theBox)
{
if (theBox.IsVoid())
{
return Handle(Graphic3d_ArrayOfSegments)();
}
Handle(Graphic3d_ArrayOfSegments) aSegs = new Graphic3d_ArrayOfSegments (8, 12 * 2);
FillSegments (aSegs, theBox);
return aSegs;
}
//! Create primitive array with line segments for displaying a box.
//! @param theSegments [in] [out] primitive array to be filled;
//! should be at least 8 nodes and 24 edges in size
//! @param theBox [in] the box to add
static void FillSegments (const Handle(Graphic3d_ArrayOfSegments)& theSegments, const Bnd_OBB& theBox)
{
if (!theBox.IsVoid())
{
gp_Pnt aXYZ[8];
theBox.GetVertex (aXYZ);
fillSegments (theSegments, aXYZ);
}
}
//! Create primitive array with line segments for displaying a box.
//! @param theSegments [in] [out] primitive array to be filled;
//! should be at least 8 nodes and 24 edges in size
//! @param theBox [in] the box to add
static void FillSegments (const Handle(Graphic3d_ArrayOfSegments)& theSegments, const Bnd_Box& theBox)
{
if (!theBox.IsVoid())
{
const gp_Pnt aMin = theBox.CornerMin();
const gp_Pnt aMax = theBox.CornerMax();
const gp_Pnt aXYZ[8] =
{
gp_Pnt (aMin.X(), aMin.Y(), aMin.Z()),
gp_Pnt (aMax.X(), aMin.Y(), aMin.Z()),
gp_Pnt (aMin.X(), aMax.Y(), aMin.Z()),
gp_Pnt (aMax.X(), aMax.Y(), aMin.Z()),
gp_Pnt (aMin.X(), aMin.Y(), aMax.Z()),
gp_Pnt (aMax.X(), aMin.Y(), aMax.Z()),
gp_Pnt (aMin.X(), aMax.Y(), aMax.Z()),
gp_Pnt (aMax.X(), aMax.Y(), aMax.Z()),
};
fillSegments (theSegments, aXYZ);
}
}
public:
//! Create primitive array with line segments for displaying a box.
//! @param theSegments [in] [out] primitive array to be filled;
//! should be at least 8 nodes and 24 edges in size
//! @param theBox [in] the box to add
static void fillSegments (const Handle(Graphic3d_ArrayOfSegments)& theSegments, const gp_Pnt* theBox)
{
const Standard_Integer aFrom = theSegments->VertexNumber();
for (int aVertIter = 0; aVertIter < 8; ++aVertIter)
{
theSegments->AddVertex (theBox[aVertIter]);
}
theSegments->AddEdges (aFrom + 1, aFrom + 2);
theSegments->AddEdges (aFrom + 3, aFrom + 4);
theSegments->AddEdges (aFrom + 5, aFrom + 6);
theSegments->AddEdges (aFrom + 7, aFrom + 8);
//
theSegments->AddEdges (aFrom + 1, aFrom + 3);
theSegments->AddEdges (aFrom + 2, aFrom + 4);
theSegments->AddEdges (aFrom + 5, aFrom + 7);
theSegments->AddEdges (aFrom + 6, aFrom + 8);
//
theSegments->AddEdges (aFrom + 1, aFrom + 5);
theSegments->AddEdges (aFrom + 2, aFrom + 6);
theSegments->AddEdges (aFrom + 3, aFrom + 7);
theSegments->AddEdges (aFrom + 4, aFrom + 8);
}
};
#endif // _StdPrs_BndBox_H__