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0027816: Visualization - provide an API for overriding clipping planes list

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Graphic3d_SequenceOfHClipPlane now inherits Standard_Transient.
PrsMgr_PresentableObject, Graphic3d_Structure, Graphic3d_CStructure,
V3d_View, OpenGl_View now manages the plane list by Handle.
The getters ::GetClipPlanes() has been removed,
setters taking non-handle ::SetClipPlanes() has been marked deprecated.

OpenGl_Structure::Render() and SelectMgr_ViewerSelector::checkOverlap()
now disable global (view) clipping planes for objects
with flags Graphic3d_TMF_TriedronPers and Graphic3d_TMF_2d
or with new flag Graphic3d_SequenceOfHClipPlane::ToOverrideGlobal().

OpenGl_Clipping now implements interface for managing clipping planes
without copying the sequences.
The filtering of duplicates is no more performed by OpenGl_Clipping
- application is responsible to not do this.
OpenGl_Clipping tries avoiding unnecessary allocations for managing
list of active planes.

MFC sample has been updated to use V3d_View::ClipPlanes() method.
This commit is contained in:
kgv
2016-09-14 13:44:47 +03:00
committed by bugmaster
parent ef444297f5
commit 3202bf1e9e
27 changed files with 691 additions and 606 deletions
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13
src/SelectMgr/SelectMgr_RectangularFrustum.cxx
View File

@@ -399,6 +399,7 @@ Handle(SelectMgr_BaseFrustum) SelectMgr_RectangularFrustum::ScaleAndTransform (c
cacheVertexProjections (aRes.get());
aRes->myViewClipRange = myViewClipRange;
aRes->myIsViewClipEnabled = myIsViewClipEnabled;
aRes->myMousePos = myMousePos;
return aRes;
@@ -716,16 +717,17 @@ Standard_Boolean SelectMgr_RectangularFrustum::IsClipped (const Graphic3d_Sequen
// function : SetViewClipping
// purpose :
// =======================================================================
void SelectMgr_RectangularFrustum::SetViewClipping (const Graphic3d_SequenceOfHClipPlane& thePlanes)
void SelectMgr_RectangularFrustum::SetViewClipping (const Handle(Graphic3d_SequenceOfHClipPlane)& thePlanes)
{
if (thePlanes.Size() == 0)
if (thePlanes.IsNull()
|| thePlanes->IsEmpty())
{
myViewClipRange.Clear();
return;
}
Standard_Real aMaxDepth, aMinDepth;
computeClippingRange (thePlanes, aMinDepth, aMaxDepth);
computeClippingRange (*thePlanes, aMinDepth, aMaxDepth);
myViewClipRange.Set (aMinDepth, aMaxDepth);
}
@@ -735,8 +737,11 @@ void SelectMgr_RectangularFrustum::SetViewClipping (const Graphic3d_SequenceOfHC
// =======================================================================
Standard_Boolean SelectMgr_RectangularFrustum::isViewClippingOk (const Standard_Real theDepth) const
{
if (!myViewClipRange.IsValid())
if (!myViewClipRange.IsValid()
|| !myIsViewClipEnabled)
{
return Standard_True;
}
return myViewClipRange.MaxDepth() > theDepth
&& myViewClipRange.MinDepth() < theDepth;