+++ /dev/null
-// ThruSections_Presentation.cpp: implementation of the ThruSections_Presentation class.
-// Building shapes passed through sections.
-//////////////////////////////////////////////////////////////////////
-
-#include "stdafx.h"
-#include "ThruSections_Presentation.h"
-
-#include <Standard.hxx>
-#include <Precision.hxx>
-
-#include <BRepBuilderAPI_MakePolygon.hxx>
-#include <BRepBuilderAPI_MakeEdge.hxx>
-#include <BRepBuilderAPI_MakeWire.hxx>
-#include <BRepOffsetAPI_ThruSections.hxx>
-
-#include <TopoDS.hxx>
-#include <TopoDS_Wire.hxx>
-
-#include <gce_MakeCirc.hxx>
-#include <gce_MakeElips.hxx>
-#include <gp.hxx>
-#include <gp_Pnt.hxx>
-#include <gp_Dir.hxx>
-
-#include <Geom_BSplineCurve.hxx>
-#include <GeomAPI_PointsToBSpline.hxx>
-#include <Geom_Plane.hxx>
-
-#include <TColgp_Array1OfPnt.hxx>
-
-
-
-// Initialization of global variable with an instance of this class
-OCCDemo_Presentation* OCCDemo_Presentation::Current = new ThruSections_Presentation;
-
-// Initialization of array of samples
-const ThruSections_Presentation::PSampleFuncType ThruSections_Presentation::SampleFuncs[] =
-{
- &ThruSections_Presentation::sample1,
- &ThruSections_Presentation::sample2
-};
-
-#ifdef WNT
- #define EOL "\r\n"
-#else
- #define EOL "\n"
-#endif
-
-
-//////////////////////////////////////////////////////////////////////
-// Construction/Destruction
-//////////////////////////////////////////////////////////////////////
-
-ThruSections_Presentation::ThruSections_Presentation()
-{
- myNbSamples = sizeof(SampleFuncs)/sizeof(PSampleFuncType);
- setName("Lofting through sections");
-}
-
-//////////////////////////////////////////////////////////////////////
-// Sample execution
-//////////////////////////////////////////////////////////////////////
-
-void ThruSections_Presentation::DoSample()
-{
- getAISContext()->EraseAll();
- if (myIndex >=0 && myIndex < myNbSamples)
- (this->*SampleFuncs[myIndex])();
-}
-
-//////////////////////////////////////////////////////////////////////
-// Sample functions
-//////////////////////////////////////////////////////////////////////
-
-//////////////////////////////////////////////////////////////////////
-// function: CreateCurve
-// purpose:
-//////////////////////////////////////////////////////////////////////
-
-static Handle(Geom_BSplineCurve) CreateCurve(Standard_Real aCoords[][3],Standard_Integer nPoles)
-{
- TColgp_Array1OfPnt aCurvePoint (1, nPoles);
-
- for (Standard_Integer i=0; i < nPoles; i++)
- aCurvePoint(i+1) = gp_Pnt (aCoords[i][0], aCoords[i][1], aCoords[i][2]);
-
- GeomAPI_PointsToBSpline aPTB (aCurvePoint);
-
- Handle (Geom_BSplineCurve) aCurve = aPTB.Curve();
- return aCurve;
-}
-
-//////////////////////////////////////////////////////////////////////
-// function: CreateShape
-// purpose:
-//////////////////////////////////////////////////////////////////////
-
-TopoDS_Shape ThruSections_Presentation::CreateShape(TopTools_SequenceOfShape& aWires,
- Standard_Boolean IsSolid,
- Standard_Boolean IsRuled,
- Standard_Real aPrec)
-{
- BRepOffsetAPI_ThruSections aTSec(IsSolid,IsRuled,aPrec);
-
- for(Standard_Integer i = 1 ; i < aWires.Length() + 1 ; i++)
- aTSec.AddWire(TopoDS::Wire(aWires(i)));
-
- aTSec.Build();
-
- TopoDS_Shape aShape = aTSec.Shape();
- return aShape;
-}
-
-//////////////////////////////////////////////////////////////////////
-// function: sample1
-// purpose:
-//////////////////////////////////////////////////////////////////////
-
-void ThruSections_Presentation::sample1()
-{
- ResetView();
- SetViewCenter(-5.5147159194746e-007, 2.4494893207696);
- SetViewScale(75.788671414734);
-
- setResultTitle("Lofting through closed sections");
- TCollection_AsciiString aText;
- aText = (
-
- "// this data used for building a shape through sections:" EOL
- "Standard_Boolean IsSolid,IsRuled;" EOL
- "Standard_Real aPrec;" EOL EOL
-
- "// creates wires:" EOL
- "TopoDS_Wire aWire1,aWire2,aWire3;" EOL EOL
-
- "// initializes these wires:" EOL
- "//aWire1 = ... ; aWire2 = ...; aWire3 = ...;" EOL EOL
-
- "// creates an algorithm for building a shell or " EOL
- "//solid passing through a set of wires:" EOL
- "BRepOffsetAPI_ThruSections aTSec;" EOL EOL
-
- "// adds wires to the set of wires:" EOL
- "aTSec.AddWire(aWire1);" EOL
- "aTSec.AddWire(aWire2);" EOL
- "aTSec.AddWire(aWire3);" EOL EOL
-
- "// Initializes algorithm for building a shell " EOL
- "//passing through a set of wires with the faces are" EOL
- "//smoothed out by approximation:" EOL
- "aTSec.Init();" EOL
- "// builds the shell:" EOL
- "aTSec.Build();" EOL
- "// takes this shape:" EOL
- "TopoDS_Shape aShape = aTSec.Shape();" EOL EOL
-
- "// Initializes algorithm for building a shell " EOL
- "//passing through a set of wires with the faces are ruled:" EOL
- "IsSolid = Standard_False;" EOL
- "IsRuled = Standard_True;" EOL
- "aTSec.Init(IsSolid,IsRuled);" EOL
- "// builds the shell:" EOL
- "aTSec.Build();" EOL
- "// takes this shape:" EOL
- "TopoDS_Shape aShape = aTSec.Shape();" EOL EOL
-
- "// Initializes algorithm for building a solid" EOL
- "//passing through a set of wires with the faces are" EOL
- "//smoothed out by approximation:" EOL
- "IsSolid = Standard_True;" EOL
- "aTSec.Init(IsSolid);" EOL
- "// builds the solid:" EOL
- "aTSec.Build();" EOL
- "// takes this shape:" EOL
- "TopoDS_Shape aShape = aTSec.Shape();" EOL EOL
-
- "// Initializes algorithm for building a solid" EOL
- "//passing through a set of wires with the faces are" EOL
- "//smoothed out by approximation with precision aPrec:" EOL
- "IsSolid = Standard_True;" EOL
- "IsRuled = Standard_False;" EOL
- "aPrec = 0.5;" EOL
- "aTSec.Init(IsSolid,IsRuled,aPrec);" EOL
- "// builds the solid:" EOL
- "aTSec.Build();" EOL
- "// takes this shape:" EOL
- "TopoDS_Shape aShape = aTSec.Shape();" EOL EOL
-
- );
-
- setResultText(aText.ToCString());
-
-//====================================================================
-
- Handle(AIS_InteractiveObject) aShow1,aShow2,aShowWire;
-
- // this data used for building a shape through sections:
- Standard_Boolean IsSolid,IsRuled;
- Standard_Real aPrec;
-
- // the number of points of wires:
- const Standard_Integer aNbOfPnt = 4;
-
- // creates arrays of coordinates of wires:
- Standard_Real aCoords [][aNbOfPnt][3] =
- {
- {{-4,0,0},{0,4,0},{4,0,0},{0,-4,0}},
- {{-2,-2,4},{-2,2,4},{2,2,4},{2,-2,4}}
- };
-
-
- // the number of wires:
- Standard_Integer aNbOfWire = (sizeof(aCoords)/(sizeof(Standard_Real)*3))/aNbOfPnt;
-
- TopTools_SequenceOfShape aWires;
- for( Standard_Integer i = 0 ; i < aNbOfWire ; i++)
- {
- BRepBuilderAPI_MakePolygon aPol;
- for( Standard_Integer j = 0 ; j < aNbOfPnt ; j++)
- aPol.Add(gp_Pnt(aCoords[i][j][0],aCoords[i][j][1],aCoords[i][j][2]));
-
- aPol.Close();
-
- TopoDS_Wire aW;
- aW = aPol.Wire();
- aWires.Append(aW);
- }
-
-
- // creates shell passing through a set of wires
- //with the faces are smoothed out by approximation:
- TopoDS_Shape aShape = CreateShape(aWires);
-
- //draw this shell:
- getAISContext()->EraseAll();
- for( i =1 ; i < aWires.Length() + 1 ; i++)
- drawShape(TopoDS::Wire(aWires(i)));
- if(WAIT_A_LITTLE) return;
- aShow1 = drawShape(aShape);
- if(WAIT_A_SECOND) return;
-
- // creates a circle:
- gp_Pnt aCenter = gp_Pnt(0,0,6);
- gp_Dir aNorm = gp::DZ();
- Standard_Real aRad = 5;
- gce_MakeCirc aMC(aCenter,aNorm,aRad);
- gp_Circ aCirc = aMC.Value();
-
- // creates shell passing through a set of wires
- //with the faces are ruled:
- aWires.Append(BRepBuilderAPI_MakeWire(BRepBuilderAPI_MakeEdge(aCirc)));
- IsSolid = Standard_False;
- IsRuled = Standard_True;
- aShape = CreateShape(aWires,IsSolid,IsRuled);
-
- // draw this shell:
- aShowWire = drawShape(aWires.Last());
- if(WAIT_A_SECOND) return;
- aShow2 = drawShape(aShape);
- getAISContext()->Erase(aShow1);
-
- // creates shell passing through a set of wires
- //with the faces are smoothed out by approximation:
- aShape = CreateShape(aWires);
-
- // draw this shell:
- if(WAIT_A_LITTLE) return;
- aShow1 = drawShape(aShape);
- getAISContext()->Erase(aShow2);
-
- // creates solid passing through a set of wires
- //with the faces are smoothed out by approximation:
- IsSolid = Standard_True;
- aShape = CreateShape(aWires,IsSolid);
-
- // draw this solid:
- if(WAIT_A_LITTLE) return;
- aShow2 = drawShape(aShape);
- getAISContext()->Erase(aShow1);
-
- if(WAIT_A_SECOND) return;
- BRepBuilderAPI_MakeEdge aME1(aCirc,0,PI/4);
- BRepBuilderAPI_MakeEdge aME2(aCirc,PI,5*PI/4);
-
- TopoDS_Edge aE1 = aME1.Edge();
- TopoDS_Edge aE2 = aME2.Edge();
- TopoDS_Edge aE3 = BRepBuilderAPI_MakeEdge(aME1.Vertex2(),aME2.Vertex1());
- TopoDS_Edge aE4 = BRepBuilderAPI_MakeEdge(aME2.Vertex2(),aME1.Vertex1());
- aWires.SetValue(aWires.Length(),BRepBuilderAPI_MakeWire(aE1,aE3,aE2,aE4));
-
- // creates solid passing through a set of wires
- //with the faces are smoothed out by approximation with precision aPrec:
- IsSolid = Standard_True;
- IsRuled = Standard_False;
- aPrec = 0.5;
- aShape = CreateShape(aWires,IsSolid,IsRuled,aPrec);
-
- // draw this solid:
- drawShape(TopoDS::Wire(aWires.Last()));
- getAISContext()->Erase(aShowWire);
- if(WAIT_A_LITTLE) return;
- drawShape(aShape);
- getAISContext()->Erase(aShow2);
-}
-
-
-//////////////////////////////////////////////////////////////////////
-// function: sample2
-// purpose:
-//////////////////////////////////////////////////////////////////////
-
-void ThruSections_Presentation::sample2()
-{
- ResetView();
- SetViewCenter(2.4529999187450e-007, 4.0824822167758);
- SetViewScale(63.822115234655);
-
-
- setResultTitle("Lofting through unclosed sections");
- TCollection_AsciiString aText;
- aText = (
-
- "// this data used for building a shape through sections:" EOL
- "const Standard_Boolean IsSolid = Standard_False;" EOL
- "Standard_Boolean IsRuled;" EOL
- "Standard_Real aPrec;" EOL EOL
-
- "// creates wires:" EOL
- "TopoDS_Wire aWire1,aWire2;" EOL EOL
-
- "// initializes these wires:" EOL
- "//aWire1 = ... ; aWire2 = ...;" EOL EOL
-
- "// creates an algorithm for building a shell or " EOL
- "//solid passing through a set of wires:" EOL
- "BRepOffsetAPI_ThruSections aTSec;" EOL EOL
-
- "// adds wires to the set of wires:" EOL
- "aTSec.AddWire(aWire1);" EOL
- "aTSec.AddWire(aWire2);" EOL EOL
-
- "// Initializes algorithm for building a shell " EOL
- "//passing through a set of wires with the faces are" EOL
- "//smoothed out by approximation:" EOL
- "aTSec.Init();" EOL
- "// builds the shell:" EOL
- "aTSec.Build();" EOL
- "// takes this shape:" EOL
- "TopoDS_Shape aShape = aTSec.Shape();" EOL EOL
-
- "// Initializes algorithm for building a shell" EOL
- "//passing through a set of wires with the faces are" EOL
- "//smoothed out by approximation with precision aPrec:" EOL
- "IsRuled = Standard_False;" EOL
- "aPrec = 0.5;" EOL
- "aTSec.Init(IsSolid,IsRuled,aPrec);" EOL
- "// builds the solid:" EOL
- "aTSec.Build();" EOL
- "// takes this shape:" EOL
- "TopoDS_Shape aShape = aTSec.Shape();" EOL EOL
-
- "// Initializes algorithm for building a shell " EOL
- "//passing through a set of wires with the faces are ruled:" EOL
- "IsRuled = Standard_True;" EOL
- "aTSec.Init(IsSolid,IsRuled);" EOL
- "// builds the shell:" EOL
- "aTSec.Build();" EOL
- "// takes this shape:" EOL
- "TopoDS_Shape aShape = aTSec.Shape();" EOL EOL
-
- );
-
- setResultText(aText.ToCString());
-
-//====================================================================
-
- Handle(AIS_InteractiveObject) aShow1,aShow2,aShowWire1,aShowWire2,aShowWire3;
-
- // this data used for building a shape through sections:
- const Standard_Boolean IsSolid = Standard_False;
- Standard_Boolean IsRuled;
- Standard_Real aPrec;
-
- // creates arrays of coordinates of wires:
- Standard_Real aCoords1[][3] =
- {
- {-5,0,0},{-2,3,0},{3,-2.5,0},{5,0,0}
- };
-
- Standard_Real aCoords2[][3] =
- {
- {-5,0,7},{-2,3,7},{3,-2.5,7},{5,0,7}
- };
-
- Standard_Real aCoords3 [][3] =
- {
- {-4,0,10},{0,4,10},{4,0,10},{0,-4,10}
- };
-
- // numbers of points for wires:
- Standard_Integer aSize1 = sizeof(aCoords1)/(sizeof(Standard_Real)*3);
- Standard_Integer aSize2 = sizeof(aCoords2)/(sizeof(Standard_Real)*3);
- Standard_Integer aSize3 = sizeof(aCoords3)/(sizeof(Standard_Real)*3);
-
- // creates curves:
- Handle(Geom_BSplineCurve) aCurve1 = CreateCurve(aCoords1,aSize1);
- Handle(Geom_BSplineCurve) aCurve2 = CreateCurve(aCoords2,aSize2);
-
- // creates wires based on the curves:
- TopoDS_Wire aW1 = BRepBuilderAPI_MakeWire(BRepBuilderAPI_MakeEdge(aCurve1));
- TopoDS_Wire aW2 = BRepBuilderAPI_MakeWire(BRepBuilderAPI_MakeEdge(aCurve2));
-
- // the sequence of wires:
- TopTools_SequenceOfShape aWires;
-
- // adds the wires to the sequence:
- aWires.Append(aW1);
- aWires.Append(aW2);
-
- // creates shell passing through a set of wires
- //with the faces are smoothed out by approximation:
- TopoDS_Shape aShape = CreateShape(aWires);
-
- // draw this shell and wires:
- aShowWire1 = drawShape(aW1);
- aShowWire2 = drawShape(aW2);
- if(WAIT_A_LITTLE) return;
- aShow1 = drawShape(aShape);
- if(WAIT_A_SECOND) return;
-
- // changes coordinates of second array:
- for( Standard_Integer i = 0 ; i < aSize2 ; i++)
- {
- aCoords2[i][0] = 0.5*aCoords2[i][0];
- aCoords2[i][1] = -aCoords2[i][1];
- }
-
- // create curve:
- aCurve2 = CreateCurve(aCoords2,aSize2);
-
- // create wire:
- aW2 = BRepBuilderAPI_MakeWire(BRepBuilderAPI_MakeEdge(aCurve2));
-
- // changes value of the last element of sequence:
- aWires.SetValue(aWires.Length(),aW2);
-
- // creates shell with new wire:
- aPrec = 0.5;
- IsRuled = Standard_False;
- aShape = CreateShape(aWires,IsSolid,IsRuled,aPrec);
-
- // draw this shell and new wire with precision aPrec:
- aShowWire3 = drawShape(aW2);
- getAISContext()->Erase(aShowWire2);
- if(WAIT_A_LITTLE) return;
- aShow2 = drawShape(aShape);
- getAISContext()->Erase(aShow1);
- if(WAIT_A_SECOND) return;
-
-
- // creates elipses:
- gce_MakeElips aMEl(gp::XOY(),5,3.5);
- gce_MakeElips aME2(gp_Pnt(-2.5,0,7),gp_Pnt(0,2,7),gp_Pnt(0,0,7));
- gp_Elips aElips1 = aMEl.Value();
- gp_Elips aElips2 = aME2.Value();
-
- // create edges based on pathes of elipses:
- TopoDS_Edge aE1 = BRepBuilderAPI_MakeEdge(aElips1,-PI/4,5*PI/4);
- TopoDS_Edge aE2 = BRepBuilderAPI_MakeEdge(aElips2,-PI/4,5*PI/4);
-
- // creates wires:
- aW1 = BRepBuilderAPI_MakeWire(aE1);
- aW2 = BRepBuilderAPI_MakeWire(aE2);
-
- // sequence clear:
- aWires.Clear();
-
- // adds wires to sequence:
- aWires.Append(aW1);
- aWires.Append(aW2);
-
- // creates shell based on the new wires:
- aShape = CreateShape(aWires);
-
- // draw this shell and new wires:
- drawShape(aW1);
- drawShape(aW2);
- getAISContext()->Erase(aShowWire1);
- getAISContext()->Erase(aShowWire3);
- if(WAIT_A_LITTLE) return;
- aShow1 = drawShape(aShape);
- getAISContext()->Erase(aShow2);
- if(WAIT_A_SECOND) return;
-
- // creates polygon:
- BRepBuilderAPI_MakePolygon aPol;
- for( i = 0 ; i < aSize3; i++)
- aPol.Add(gp_Pnt(aCoords3[i][0],aCoords3[i][1],aCoords3[i][2]));
-
- // takes the wire:
- aW2 = aPol.Wire();
-
- // adds the polygon wire to sequence:
- aWires.Append(aW2);
-
- // creates shell passing through a set of wires
- //with the faces are ruled:
- IsRuled = Standard_True;
- aShape = CreateShape(aWires,IsSolid,IsRuled);
-
- drawShape(aW2);
- if(WAIT_A_LITTLE) return;
- aShow2 = drawShape(aShape);
- getAISContext()->Erase(aShow1);
-}
-
projects / occt.git / blobdiff