OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-08-29 14:00:49 +03:00
Code Activity

0027374: Visualization - optimize management of the scene bounding box

Browse Source 
OpenGl_View now caches bounding boxes per Z-layer (instead of bounding box of entire scene in Graphic3d_CView).
Redundant invalidation of cached scene bounding box is now avoided in case
when new presentation attributes are assigned to the graphic structure.

Add a new methods ConsiderZoomPersistenceObjects() and considerZoomPersistenceObjects() in the Graphic3d_CView, OpenGl_View and OpenGl_Layer classes.
Call ConsiderZoomPersistenceObjects() in the V3d_View::FitMinMax method.

std::numeric_limits<T>::lowest() fix
This commit is contained in:
duv
2016-05-25 17:00:59 +03:00
committed by bugmaster
parent 5ae6e53dec
commit 50d06d8fcf
13 changed files with 558 additions and 59 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
src/OpenGl/OpenGl_View.hxx
View File

@@ -231,6 +231,22 @@ public:
Standard_EXPORT virtual void SetZLayerSettings (const Graphic3d_ZLayerId theLayerId,
const Graphic3d_ZLayerSettings& theSettings) Standard_OVERRIDE;
//! Returns the maximum Z layer ID.
//! First layer ID is Graphic3d_ZLayerId_Default, last ID is ZLayerMax().
Standard_EXPORT virtual Standard_Integer ZLayerMax() const Standard_OVERRIDE;
//! Returns the bounding box of all structures displayed in the Z layer.
//! Never fails. If Z layer does not exist nothing happens.
Standard_EXPORT virtual void InvalidateZLayerBoundingBox (const Graphic3d_ZLayerId theLayerId) const Standard_OVERRIDE;
//! Returns the bounding box of all structures displayed in the Z layer.
//! Never fails. If Z layer does not exist the empty box is returned.
Standard_EXPORT virtual Graphic3d_BndBox4f ZLayerBoundingBox (const Graphic3d_ZLayerId theLayerId,
const Handle(Graphic3d_Camera)& theCamera,
const Standard_Integer theWindowWidth,
const Standard_Integer theWindowHeight,
const Standard_Boolean theToIgnoreInfiniteFlag) const Standard_OVERRIDE;
//! Returns pointer to an assigned framebuffer object.
Standard_EXPORT virtual Handle(Standard_Transient) FBO() const Standard_OVERRIDE;
@@ -528,6 +544,13 @@ private:
Standard_EXPORT virtual void changePriority (const Handle(Graphic3d_CStructure)& theCStructure,
const Standard_Integer theNewPriority) Standard_OVERRIDE;
//! Returns zoom-scale factor.
Standard_EXPORT virtual Standard_Real considerZoomPersistenceObjects (const Graphic3d_ZLayerId theLayerId,
const Handle(Graphic3d_Camera)& theCamera,
const Standard_Integer theWindowWidth,
const Standard_Integer theWindowHeight,
const Standard_Boolean theToIgnoreInfiniteFlag) const Standard_OVERRIDE;
private:
//! Copy content of Back buffer to the Front buffer.