屌炸天的3D引擎OpenCASCADE的用法及案例(转载之处：)

What CASCADE？

Open CASCADE（简称OCC）平台是由法国Matra Datavision公司开发的CAD/CAE/CAM软件平台，可以说是世界上最重要的几何造型基础软件平台之一。开源OCC对象库是一个面向对象C++类库，用于快速开发设计领域的专业应用程序。

用它可以做很多三维模型，如下面两种。简单地说它可以开发三维CAD或者Solidworks等等软件，可以说强大无比。

OpenCASCADE的下载与安装

1.OpenCASCADE下载。

1）去官网下载：https://dev.opencascade.org/release

2）去CSDN下载：https://download.csdn.net/download/xipengbozai/18883824

3）下载你需要的版本，推荐下载安装版，比较省事：https://download.csdn.net/download/xipengbozai/18883824

2.OpenCASCADE安装。

1）匹配VS版本，我的是VS2017 64位版本，所以安装的是opencascade-7.4.0-vc14-64.exe

2）单机安装，选择下一步

3）然后安装full版本，也就是完全版，单击安装直到完成即可。

4）安装完的目录效果，opencascade-7.4.0是主目录，其他是附加库

OpenCASCADE的用法

1.建立项目工程，包含目录

2.添加库目录，如下所示

3.链接器-输入-附加依赖项输入如下项

TKBin.lib

TKBinL.lib

TKBinTObj.lib

TKBinXCAF.lib

TKBO.lib

TKBool.lib

TKBRep.lib

TKCAF.lib

TKCDF.lib

TKD3DHost.lib

TKDCAF.lib

TKDFBrowser.lib

TKDraw.lib

TKernel.lib

TKFeat.lib

TKFillet.lib

TKG2d.lib

TKG3d.lib

TKGeomAlgo.lib

TKGeomBase.lib

TKHLR.lib

TKIGES.lib

TKIVtk.lib

TKIVtkDraw.lib

TKLCAF.lib

TKMath.lib

TKMesh.lib

TKMeshVS.lib

TKOffset.lib

TKOpenGl.lib

TKPrim.lib

TKQADraw.lib

TKRWMesh.lib

TKService.lib

TKShapeView.lib

TKShHealing.lib

TKStd.lib

TKStdL.lib

TKSTEP.lib

TKSTEP209.lib

TKSTEPAttr.lib

TKSTEPBase.lib

TKSTL.lib

TKTInspector.lib

TKTInspectorAPI.lib

TKTObj.lib

TKTObjDRAW.lib

TKToolsDraw.lib

TKTopAlgo.lib

TKTopTest.lib

TKTreeModel.lib

TKV3d.lib

TKVCAF.lib

TKView.lib

TKViewerTest.lib

TKVInspector.lib

TKVRML.lib

TKXCAF.lib

TKXDEDRAW.lib

TKXDEIGES.lib

TKXDESTEP.lib

TKXMesh.lib

TKXml.lib

TKXmlL.lib

TKXmlTObj.lib

TKXmlXCAF.lib

TKXSBase.lib

TKXSDRAW.lib

4.添加头文件，一定要注意添加位置，#include <afxdisp.h>        // MFC 自动化类之后，#ifndef _AFX_NO_OLE_SUPPORT之前的中间。

include <BRepTools.hxx>

include <Standard_DefineHandle.hxx>

include <DsgPrs_LengthPresentation.hxx>

include <GCPnts_TangentialDeflection.hxx>

include <Geom_Axis2Placement.hxx>

include <Geom_CartesianPoint.hxx>

include <Geom_Line.hxx>

include <Geom_Surface.hxx>

include <BRepAdaptor_Surface.hxx>

include <GeomAbs_CurveType.hxx>

include <GeomAdaptor_Curve.hxx>

include <GeomTools_Curve2dSet.hxx>

include <gp_Vec.hxx>

include <Graphic3d_NameOfMaterial.hxx>

include <MMgt_TShared.hxx>

include <OSD_Environment.hxx>

include <Precision.hxx>

include <Prs3d_IsoAspect.hxx>

include <Prs3d_LineAspect.hxx>

include <Prs3d_Projector.hxx>

include <Prs3d_Text.hxx>

include <Quantity_Factor.hxx>

include <Quantity_Length.hxx>

include <Quantity_NameOfColor.hxx>

include <Quantity_PhysicalQuantity.hxx>

include <Quantity_PlaneAngle.hxx>

include <Quantity_TypeOfColor.hxx>

include <SelectMgr_EntityOwner.hxx>

include <SelectMgr_SelectableObject.hxx>

include <SelectMgr_Selection.hxx>

include <SelectMgr_SelectionManager.hxx>

include <SelectMgr_ListOfFilter.hxx>

include <SelectMgr_Filter.hxx>

include <StdSelect_EdgeFilter.hxx>

include <StdSelect_ShapeTypeFilter.hxx>

include <Standard_Boolean.hxx>

include <Standard_CString.hxx>

include <Standard_ErrorHandler.hxx>

include <Standard_Integer.hxx>

include <Standard_IStream.hxx>

include <Standard_Macro.hxx>

include <Standard_NotImplemented.hxx>

include <Standard_OStream.hxx>

include <Standard_Real.hxx>

include <StdPrs_Curve.hxx>

include <StdPrs_Point.hxx>

include <StdPrs_PoleCurve.hxx>

include <TCollection_AsciiString.hxx>

include <TColgp_Array1OfPnt2d.hxx>

include <TColgp_HArray1OfPnt2d.hxx>

include <TCollection_AsciiString.hxx>

include <TColStd_HSequenceOfTransient.hxx>

include <TColStd_MapIteratorOfMapOfTransient.hxx>

include <TColStd_MapOfTransient.hxx>

include <TopExp_Explorer.hxx>

include <TopoDS.hxx>

include <TopoDS_Compound.hxx>

include <TopoDS_Shape.hxx>

include <TopoDS_Solid.hxx>

include <TopoDS_Vertex.hxx>

include <TopExp.hxx>

include <TopTools_HSequenceOfShape.hxx>

include <UnitsAPI.hxx>

include <V3d_View.hxx>

include <V3d_Viewer.hxx>

include <WNT_Window.hxx>

include <Prs3d_PointAspect.hxx>

include <AIS_Point.hxx>

include <AIS_InteractiveContext.hxx>

include <AIS_Shape.hxx>

include <BRep_Tool.hxx>

include <BRepAlgoAPI_Fuse.hxx>

include <BRepBuilderAPI_MakeEdge.hxx>

include <BRepBuilderAPI_MakeFace.hxx>

include <BRepBuilderAPI_MakeWire.hxx>

include <BRepBuilderAPI_MakeVertex.hxx>

include <BRepBuilderAPI_Transform.hxx>

include <BRepPrimAPI_MakeCone.hxx>

include <BRepPrimAPI_MakeRevol.hxx>

include <BRepFilletAPI_MakeFillet.hxx>

include <BRepBuilderAPI_Copy.hxx>

include <BRepBuilderAPI_MakePolygon.hxx>

include <BRepLib.hxx>

include <BRepOffsetAPI_MakeThickSolid.hxx>

include <BRepOffsetAPI_ThruSections.hxx>

include <BRepPrimAPI_MakeCylinder.hxx>

include <BRepPrimAPI_MakePrism.hxx>

include <BRepPrimAPI_MakeTorus.hxx>

include <BRepAlgoAPI_Section.hxx>

include <BRepPrimAPI_MakeSphere.hxx>

include <BRepFeat_SplitShape.hxx>

include <TColgp_HArray1OfPnt.hxx>

include <GeomAPI_Interpolate.hxx>

include <GC_MakeArcOfCircle.hxx>

include <GC_MakeSegment.hxx>

include <GC_MakeCircle.hxx>

include <GCE2d_MakeSegment.hxx>

include <gp.hxx>

include <gp_Ax1.hxx>

include <gp_Ax2.hxx>

include <gp_Ax2d.hxx>

include <gp_Dir.hxx>

include <gp_Dir2d.hxx>

include <gp_Pnt.hxx>

include <gp_Pnt2d.hxx>

include <gp_Trsf.hxx>

include <gp_Vec.hxx>

include <Geom_CylindricalSurface.hxx>

include <Geom_Plane.hxx>

include <Geom_Surface.hxx>

include <Geom_TrimmedCurve.hxx>

include <Geom2d_Ellipse.hxx>

include <Geom2d_TrimmedCurve.hxx>

include <TopExp_Explorer.hxx>

include <TopoDS.hxx>

include <TopoDS_Edge.hxx>

include <TopoDS_Face.hxx>

include <TopoDS_Wire.hxx>

include <TopoDS_Shape.hxx>

include <TopoDS_Compound.hxx>

include <GCPnts_AbscissaPoint.hxx>

include <BRepAdaptor_Curve.hxx>

include <GeomLib.hxx>

include <GeomConvert_CompCurveToBSplineCurve.hxx>

include <TopTools_ListOfShape.hxx>

include <TopTools_ListIteratorOfListOfShape.hxx>

include <TopTools_DataMapOfShapeInteger.hxx>

include <TopTools_DataMapOfShapeReal.hxx>

include <TopTools_IndexedDataMapOfShapeAddress.hxx>

include <V3d_PositionalLight.hxx>

include <V3d_DirectionalLight.hxx>

include <V3d_AmbientLight.hxx>

include <IGESControl_Controller.hxx>

include <IGESControl_Writer.hxx>

include <Interface_Static.hxx>

include <OpenGl_GraphicDriver.hxx>

include <Graphic3d_GraphicDriver.hxx>

OpenCASCADE开发案例

1.建立MFC工程

2.stdafx.h头文件中包含OpenCASCADE头文件

// stdafx.h : 标准系统包含文件的包含文件，

// 或是经常使用但不常更改的

// 特定于项目的包含文件

pragma once

ifndef VC_EXTRALEAN

define VC_EXTRALEAN // 从 Windows 头中排除极少使用的资料

endif

include "targetver.h"

define _ATL_CSTRING_EXPLICIT_CONSTRUCTORS // 某些 CString 构造函数将是显式的

// 关闭 MFC 对某些常见但经常可放心忽略的警告消息的隐藏

define _AFX_ALL_WARNINGS

include <afxwin.h> // MFC 核心组件和标准组件

include <afxext.h> // MFC 扩展

include <afxdisp.h> // MFC 自动化类

include <BRepTools.hxx>

include <Standard_DefineHandle.hxx>

include <DsgPrs_LengthPresentation.hxx>

include <GCPnts_TangentialDeflection.hxx>

include <Geom_Axis2Placement.hxx>

include <Geom_CartesianPoint.hxx>

include <Geom_Line.hxx>

include <Geom_Surface.hxx>

include <BRepAdaptor_Surface.hxx>

include <GeomAbs_CurveType.hxx>

include <GeomAdaptor_Curve.hxx>

include <GeomTools_Curve2dSet.hxx>

include <gp_Vec.hxx>

include <Graphic3d_NameOfMaterial.hxx>

include <MMgt_TShared.hxx>

include <OSD_Environment.hxx>

include <Precision.hxx>

include <Prs3d_IsoAspect.hxx>

include <Prs3d_LineAspect.hxx>

include <Prs3d_Projector.hxx>

include <Prs3d_Text.hxx>

include <Quantity_Factor.hxx>

include <Quantity_Length.hxx>

include <Quantity_NameOfColor.hxx>

include <Quantity_PhysicalQuantity.hxx>

include <Quantity_PlaneAngle.hxx>

include <Quantity_TypeOfColor.hxx>

include <SelectMgr_EntityOwner.hxx>

include <SelectMgr_SelectableObject.hxx>

include <SelectMgr_Selection.hxx>

include <SelectMgr_SelectionManager.hxx>

include <SelectMgr_ListOfFilter.hxx>

include <SelectMgr_Filter.hxx>

include <StdSelect_EdgeFilter.hxx>

include <StdSelect_ShapeTypeFilter.hxx>

include <Standard_Boolean.hxx>

include <Standard_CString.hxx>

include <Standard_ErrorHandler.hxx>

include <Standard_Integer.hxx>

include <Standard_IStream.hxx>

include <Standard_Macro.hxx>

include <Standard_NotImplemented.hxx>

include <Standard_OStream.hxx>

include <Standard_Real.hxx>

include <StdPrs_Curve.hxx>

include <StdPrs_Point.hxx>

include <StdPrs_PoleCurve.hxx>

include <TCollection_AsciiString.hxx>

include <TColgp_Array1OfPnt2d.hxx>

include <TColgp_HArray1OfPnt2d.hxx>

include <TCollection_AsciiString.hxx>

include <TColStd_HSequenceOfTransient.hxx>

include <TColStd_MapIteratorOfMapOfTransient.hxx>

include <TColStd_MapOfTransient.hxx>

include <TopExp_Explorer.hxx>

include <TopoDS.hxx>

include <TopoDS_Compound.hxx>

include <TopoDS_Shape.hxx>

include <TopoDS_Solid.hxx>

include <TopoDS_Vertex.hxx>

include <TopExp.hxx>

include <TopTools_HSequenceOfShape.hxx>

include <UnitsAPI.hxx>

include <V3d_View.hxx>

include <V3d_Viewer.hxx>

include <WNT_Window.hxx>

include <Prs3d_PointAspect.hxx>

include <AIS_Point.hxx>

include <AIS_InteractiveContext.hxx>

include <AIS_Shape.hxx>

include <BRep_Tool.hxx>

include <BRepAlgoAPI_Fuse.hxx>

include <BRepBuilderAPI_MakeEdge.hxx>

include <BRepBuilderAPI_MakeFace.hxx>

include <BRepBuilderAPI_MakeWire.hxx>

include <BRepBuilderAPI_MakeVertex.hxx>

include <BRepBuilderAPI_Transform.hxx>

include <BRepPrimAPI_MakeCone.hxx>

include <BRepPrimAPI_MakeRevol.hxx>

include <BRepFilletAPI_MakeFillet.hxx>

include <BRepBuilderAPI_Copy.hxx>

include <BRepBuilderAPI_MakePolygon.hxx>

include <BRepLib.hxx>

include <BRepOffsetAPI_MakeThickSolid.hxx>

include <BRepOffsetAPI_ThruSections.hxx>

include <BRepPrimAPI_MakeCylinder.hxx>

include <BRepPrimAPI_MakePrism.hxx>

include <BRepPrimAPI_MakeTorus.hxx>

include <BRepAlgoAPI_Section.hxx>

include <BRepPrimAPI_MakeSphere.hxx>

include <BRepFeat_SplitShape.hxx>

include <TColgp_HArray1OfPnt.hxx>

include <GeomAPI_Interpolate.hxx>

include <GC_MakeArcOfCircle.hxx>

include <GC_MakeSegment.hxx>

include <GC_MakeCircle.hxx>

include <GCE2d_MakeSegment.hxx>

include <gp.hxx>

include <gp_Ax1.hxx>

include <gp_Ax2.hxx>

include <gp_Ax2d.hxx>

include <gp_Dir.hxx>

include <gp_Dir2d.hxx>

include <gp_Pnt.hxx>

include <gp_Pnt2d.hxx>

include <gp_Trsf.hxx>

include <gp_Vec.hxx>

include <Geom_CylindricalSurface.hxx>

include <Geom_Plane.hxx>

include <Geom_Surface.hxx>

include <Geom_TrimmedCurve.hxx>

include <Geom2d_Ellipse.hxx>

include <Geom2d_TrimmedCurve.hxx>

include <TopExp_Explorer.hxx>

include <TopoDS.hxx>

include <TopoDS_Edge.hxx>

include <TopoDS_Face.hxx>

include <TopoDS_Wire.hxx>

include <TopoDS_Shape.hxx>

include <TopoDS_Compound.hxx>

include <GCPnts_AbscissaPoint.hxx>

include <BRepAdaptor_Curve.hxx>

include <GeomLib.hxx>

include <GeomConvert_CompCurveToBSplineCurve.hxx>

include <TopTools_ListOfShape.hxx>

include <TopTools_ListIteratorOfListOfShape.hxx>

include <TopTools_DataMapOfShapeInteger.hxx>

include <TopTools_DataMapOfShapeReal.hxx>

include <TopTools_IndexedDataMapOfShapeAddress.hxx>

include <V3d_PositionalLight.hxx>

include <V3d_DirectionalLight.hxx>

include <V3d_AmbientLight.hxx>

include <IGESControl_Controller.hxx>

include <IGESControl_Writer.hxx>

include <Interface_Static.hxx>

include <OpenGl_GraphicDriver.hxx>

include <Graphic3d_GraphicDriver.hxx>

ifndef _AFX_NO_OLE_SUPPORT

include <afxdtctl.h> // MFC 对 Internet Explorer 4 公共控件的支持

endif

ifndef _AFX_NO_AFXCMN_SUPPORT

include <afxcmn.h> // MFC 对 Windows 公共控件的支持

endif // _AFX_NO_AFXCMN_SUPPORT

include <afxcontrolbars.h> // 功能区和控件条的 MFC 支持

ifdef _UNICODE

if defined _M_IX86

pragma comment(linker,"/manifestdependency:"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='x86' publicKeyToken='6595b64144ccf1df' language='*'"")

elif defined _M_X64

pragma comment(linker,"/manifestdependency:"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='amd64' publicKeyToken='6595b64144ccf1df' language='*'"")

else

pragma comment(linker,"/manifestdependency:"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='' publicKeyToken='6595b64144ccf1df' language=''"")

endif

endif

3.mfcoccc.h文件中创建三维引擎句柄，

Handle(Graphic3d_GraphicDriver) m_GraphicDriver;
Handle(Graphic3d_GraphicDriver) GetGraphicDriver() { return m_GraphicDriver; }

4.mfcocccDoc.h文件中声明上下文和显示view句柄，绘图函数声明

Handle(AIS_InteractiveContext) myAISContext;
Handle(V3d_Viewer) myViewer;
Handle(V3d_Viewer) GetViewer(void) { return myViewer; }

void DrawSphere(double Radius);  

void DrawBox(double MyHeight,double MyWidth,double MyThickness);  //画盒子

5.mfcocccView.h中声明视图句柄

Handle(V3d_View) myView;

6.实现代码较多，这里就不一一列出来了

7.案例达到的效果如下，是一个立体的空瓶子。

源码下载地址：https://download.csdn.net/download/xipengbozai/18884650