mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-08-14 13:30:48 +03:00
af989e9d1d
- implemented interfaces for LOD at OpenGl, Graphic3d and MeshVS levels; - added LOD managers at Graphic3d and OpenGl levels; - simple mechanism of LOD switching is implemented in LOD manager; - distance to COG metric is temporarily used; - the metric could be redefined using custom LOD selectors; - LODs are added to MeshVS_Mesh in Compute method and are listed as its data sources; - added commands meshgenlod and meshlod to generate LODs for mesh and its topological representation and bind them to its OpenGl structures.
167 lines
8.9 KiB
C++
167 lines
8.9 KiB
C++
// Created on: 2003-10-10
|
|
// Created by: Alexander SOLOVYOV
|
|
// Copyright (c) 2003-2014 OPEN CASCADE SAS
|
|
//
|
|
// This file is part of Open CASCADE Technology software library.
|
|
//
|
|
// This library is free software; you can redistribute it and/or modify it under
|
|
// the terms of the GNU Lesser General Public License version 2.1 as published
|
|
// by the Free Software Foundation, with special exception defined in the file
|
|
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
|
// distribution for complete text of the license and disclaimer of any warranty.
|
|
//
|
|
// Alternatively, this file may be used under the terms of Open CASCADE
|
|
// commercial license or contractual agreement.
|
|
|
|
#ifndef _MeshVS_MeshPrsBuilder_HeaderFile
|
|
#define _MeshVS_MeshPrsBuilder_HeaderFile
|
|
|
|
#include <Standard.hxx>
|
|
#include <Standard_Type.hxx>
|
|
|
|
#include <MeshVS_PrsBuilder.hxx>
|
|
#include <MeshVS_DisplayModeFlags.hxx>
|
|
#include <Standard_Integer.hxx>
|
|
#include <MeshVS_BuilderPriority.hxx>
|
|
#include <TColStd_PackedMapOfInteger.hxx>
|
|
#include <Standard_Boolean.hxx>
|
|
#include <TColStd_Array1OfReal.hxx>
|
|
#include <Standard_Real.hxx>
|
|
#include <MeshVS_HArray1OfSequenceOfInteger.hxx>
|
|
class MeshVS_Mesh;
|
|
class MeshVS_DataSource;
|
|
class Prs3d_Presentation;
|
|
class Graphic3d_ArrayOfSegments;
|
|
class Graphic3d_ArrayOfTriangles;
|
|
class Graphic3d_ArrayOfPrimitives;
|
|
class Graphic3d_AspectFillArea3d;
|
|
class Graphic3d_AspectLine3d;
|
|
|
|
|
|
class MeshVS_MeshPrsBuilder;
|
|
DEFINE_STANDARD_HANDLE(MeshVS_MeshPrsBuilder, MeshVS_PrsBuilder)
|
|
|
|
//! This class provides methods to compute base mesh presentation
|
|
class MeshVS_MeshPrsBuilder : public MeshVS_PrsBuilder
|
|
{
|
|
public:
|
|
|
|
//! Creates builder with certain display mode flags, data source, ID and priority
|
|
Standard_EXPORT MeshVS_MeshPrsBuilder(const Handle(MeshVS_Mesh)& Parent,
|
|
const MeshVS_DisplayModeFlags& Flags = MeshVS_DMF_OCCMask,
|
|
const Handle(MeshVS_DataSource)& DS = 0,
|
|
const Standard_Integer Id = -1,
|
|
const MeshVS_BuilderPriority& Priority = MeshVS_BP_Mesh);
|
|
|
|
//! Builds base mesh presentation by calling the methods below
|
|
Standard_EXPORT virtual void Build (const Handle(Prs3d_Presentation)& Prs,
|
|
const TColStd_PackedMapOfInteger& IDs,
|
|
TColStd_PackedMapOfInteger& IDsToExclude,
|
|
const Standard_Boolean IsElement,
|
|
const Standard_Integer DisplayMode) const Standard_OVERRIDE;
|
|
|
|
//! Builds nodes presentation
|
|
Standard_EXPORT virtual void BuildNodes (const Handle(Prs3d_Presentation)& Prs,
|
|
const TColStd_PackedMapOfInteger& IDs,
|
|
TColStd_PackedMapOfInteger& IDsToExclude,
|
|
const Standard_Integer DisplayMode) const;
|
|
|
|
//! Builds elements presentation
|
|
Standard_EXPORT virtual void BuildElements (const Handle(Prs3d_Presentation)& Prs,
|
|
const TColStd_PackedMapOfInteger& IDs,
|
|
TColStd_PackedMapOfInteger& IDsToExclude,
|
|
const Standard_Integer DisplayMode) const;
|
|
|
|
//! Builds presentation of hilighted entity
|
|
Standard_EXPORT virtual void BuildHilightPrs (const Handle(Prs3d_Presentation)& Prs,
|
|
const TColStd_PackedMapOfInteger& IDs,
|
|
const Standard_Boolean IsElement) const;
|
|
|
|
//! Add to array polygons or polylines representing volume
|
|
Standard_EXPORT static void AddVolumePrs (const Handle(MeshVS_HArray1OfSequenceOfInteger)& Topo,
|
|
const TColStd_Array1OfReal& Nodes,
|
|
const Standard_Integer NbNodes,
|
|
const Handle(Graphic3d_ArrayOfPrimitives)& Array,
|
|
const Standard_Boolean IsReflected,
|
|
const Standard_Boolean IsShrinked,
|
|
const Standard_Boolean IsSelect,
|
|
const Standard_Real ShrinkCoef);
|
|
|
|
//! Calculate how many polygons or polylines are necessary to draw passed topology
|
|
Standard_EXPORT static void HowManyPrimitives (const Handle(MeshVS_HArray1OfSequenceOfInteger)& Topo,
|
|
const Standard_Boolean AsPolygons,
|
|
const Standard_Boolean IsSelect,
|
|
const Standard_Integer NbNodes,
|
|
Standard_Integer& Vertices,
|
|
Standard_Integer& Bounds);
|
|
|
|
//! Add to array of polylines some lines representing link
|
|
Standard_EXPORT void AddLinkPrs (const TColStd_Array1OfReal& theCoords,
|
|
const Handle(Graphic3d_ArrayOfSegments)& theLines,
|
|
const Standard_Boolean IsShrinked,
|
|
const Standard_Real ShrinkCoef) const;
|
|
|
|
//! Add to array of segments representing face's wire
|
|
Standard_EXPORT void AddFaceWirePrs (const TColStd_Array1OfReal& theCoords,
|
|
const Standard_Integer theNbNodes,
|
|
const Handle(Graphic3d_ArrayOfSegments)& theLines,
|
|
const Standard_Boolean theIsShrinked,
|
|
const Standard_Real theShrinkingCoef) const;
|
|
|
|
//! Add to array of polygons a polygon representing face
|
|
Standard_EXPORT void AddFaceSolidPrs (const Handle(MeshVS_DataSource)& theDataSource,
|
|
const Standard_Integer ID,
|
|
const TColStd_Array1OfReal& theCoords,
|
|
const Standard_Integer theNbNodes,
|
|
const Standard_Integer theMaxNodes,
|
|
const Handle(Graphic3d_ArrayOfTriangles)& theTriangles,
|
|
const Standard_Boolean theIsReflected,
|
|
const Standard_Boolean theIsShrinked,
|
|
const Standard_Real theShrinkCoef,
|
|
const Standard_Boolean theIsMeshSmoothShading) const;
|
|
|
|
DEFINE_STANDARD_RTTIEXT(MeshVS_MeshPrsBuilder,MeshVS_PrsBuilder)
|
|
|
|
protected:
|
|
|
|
//! Add to array of polygons a polygon representing face
|
|
Standard_EXPORT void AddFaceSolidPrs (const Standard_Integer ID,
|
|
const TColStd_Array1OfReal& theCoords,
|
|
const Standard_Integer theNbNodes,
|
|
const Standard_Integer theMaxNodes,
|
|
const Handle(Graphic3d_ArrayOfTriangles)& theTriangles,
|
|
const Standard_Boolean theIsReflected,
|
|
const Standard_Boolean theIsShrinked,
|
|
const Standard_Real theShrinkCoef,
|
|
const Standard_Boolean theIsMeshSmoothShading) const;
|
|
|
|
//! Draw array of polygons and polylines in the certain order according to transparency
|
|
Standard_EXPORT void DrawArrays (const Handle(Prs3d_Presentation)& Prs,
|
|
const Handle(Graphic3d_ArrayOfPrimitives)& thePolygons,
|
|
const Handle(Graphic3d_ArrayOfPrimitives)& theLines,
|
|
const Handle(Graphic3d_ArrayOfPrimitives)& theLinkLines,
|
|
const Handle(Graphic3d_ArrayOfPrimitives)& theVolumesInShad,
|
|
const Standard_Boolean IsPolygonsEdgesOff,
|
|
const Standard_Boolean IsSelected,
|
|
const Handle(Graphic3d_AspectFillArea3d)& theFillAsp,
|
|
const Handle(Graphic3d_AspectLine3d)& theLineAsp) const;
|
|
|
|
//! Default calculation of center of face or link. This method if useful for shrink mode presentation
|
|
//! theCoords is array of nodes co-ordinates in the strict order X1, Y1, Z1, X2...
|
|
//! NbNodes is number of nodes an element consist of
|
|
//! xG, yG, zG are co-ordinates of center whose will be returned
|
|
Standard_EXPORT static void CalculateCenter (const TColStd_Array1OfReal& theCoords,
|
|
const Standard_Integer NbNodes,
|
|
Standard_Real& xG,
|
|
Standard_Real& yG,
|
|
Standard_Real& zG);
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#endif // _MeshVS_MeshPrsBuilder_HeaderFile
|