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0027137: Visualization - handle shadow structures within V3d_View::Gravity()

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OpenGl_StructureShadow - copy bounding box from parent structure.
Prs3d_PresentationShadow::CalculateBoundBox() - do nothing.

V3d_View::Gravity() - skip presentations with transformation persistence flags.
Use cached presentation bounding box.
This commit is contained in:
kgv 2016-02-10 16:19:20 +03:00 committed by abv
parent 66dce5e76b
commit 770fa4d4cf
5 changed files with 33 additions and 22 deletions
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3
src/Graphic3d/Graphic3d_Structure.hxx
View File

@ -124,8 +124,7 @@ public:
Standard_EXPORT void Remove();
//! Computes axis-aligned bounding box of a structure.
//! Category: Methods to modify the class definition
Standard_EXPORT void CalculateBoundBox();
Standard_EXPORT virtual void CalculateBoundBox();
//! If <theToSet> is Standard_True then <me> is infinite and
//! the MinMaxValues method method return :

1
src/OpenGl/OpenGl_StructureShadow.cxx
View File

@ -33,6 +33,7 @@ OpenGl_StructureShadow::OpenGl_StructureShadow (const Handle(Graphic3d_Structure
ContainsFacet = myParent->ContainsFacet;
IsInfinite = myParent->IsInfinite;
Transformation = myParent->Transformation;
myBndBox = myParent->BoundingBox();
UpdateTransformation();
myInstancedStructure = const_cast<OpenGl_Structure*> (myParent->InstancedStructure());

9
src/Prs3d/Prs3d_PresentationShadow.cxx
View File

@ -30,3 +30,12 @@ Prs3d_PresentationShadow::Prs3d_PresentationShadow (const Handle(Graphic3d_Struc
{
//
}
//=======================================================================
//function : CalculateBoundBox
//purpose :
//=======================================================================
void Prs3d_PresentationShadow::CalculateBoundBox()
{
//
}

3
src/Prs3d/Prs3d_PresentationShadow.hxx
View File

@ -34,6 +34,9 @@ public:
//! Returns view affinity of the parent presentation
Standard_EXPORT inline const Handle(Graphic3d_ViewAffinity)& ParentAffinity() const { return myParentAffinity; }
//! Do nothing - axis-aligned bounding box should be initialized from parent structure.
Standard_EXPORT virtual void CalculateBoundBox() Standard_OVERRIDE;
private:
DEFINE_STANDARD_RTTIEXT(Prs3d_PresentationShadow,Prs3d_Presentation)

39
src/V3d/V3d_View.cxx
View File

@ -2190,21 +2190,31 @@ void V3d_View::Gravity (Standard_Real& theX,
{
const Handle(Graphic3d_Structure)& aStruct = aStructIter.Key();
if (!aStruct->IsVisible()
|| (hasSelection && !aStruct->IsHighlighted())
|| aStruct->IsEmpty())
|| aStruct->IsInfinite()
|| (hasSelection && !aStruct->IsHighlighted()))
{
continue;
}
Bnd_Box aBox = aStruct->MinMaxValues();
if (aBox.IsVoid() || aStruct->IsInfinite())
const Graphic3d_BndBox4f& aBox = aStruct->CStructure()->BoundingBox();
if (!aBox.IsValid())
{
continue;
}
// skip transformation-persistent objects
if (aStruct->TransformPersistence().Flags != Graphic3d_TMF_None)
{
continue;
}
// use camera projection to find gravity point
aBox.Get (Xmin, Ymin, Zmin,
Xmax, Ymax, Zmax);
Xmin = (Standard_Real )aBox.CornerMin().x();
Ymin = (Standard_Real )aBox.CornerMin().y();
Zmin = (Standard_Real )aBox.CornerMin().z();
Xmax = (Standard_Real )aBox.CornerMax().x();
Ymax = (Standard_Real )aBox.CornerMax().y();
Zmax = (Standard_Real )aBox.CornerMax().z();
gp_Pnt aPnts[THE_NB_BOUND_POINTS] =
{
gp_Pnt (Xmin, Ymin, Zmin), gp_Pnt (Xmin, Ymin, Zmax),
@ -2228,21 +2238,10 @@ void V3d_View::Gravity (Standard_Real& theX,
if (aNbPoints == 0)
{
for (Graphic3d_MapIteratorOfMapOfStructure aStructIter (aSetOfStructures);
aStructIter.More(); aStructIter.Next())
// fallback - just use bounding box of entire scene
Bnd_Box aBox = myView->MinMaxValues (Standard_True);
if (!aBox.IsVoid())
{
const Handle(Graphic3d_Structure)& aStruct = aStructIter.Key();
if (aStruct->IsEmpty())
{
continue;
}
Bnd_Box aBox = aStruct->MinMaxValues();
if (aBox.IsVoid() || aStruct->IsInfinite())
{
continue;
}
aBox.Get (Xmin, Ymin, Zmin,
Xmax, Ymax, Zmax);
gp_Pnt aPnts[THE_NB_BOUND_POINTS] =