Open CASCADE学习|拉伸

目录

1、沿方向拉伸

2、沿路径拉伸

3、变形拉伸

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1、沿方向拉伸

#include 
#include 
#include 
#include 
#include 
#include 
#include 
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#include 
#include 
#include 
#include 
#include 
#include 
#include 
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#include 
#include 
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#include"Viewer.h"
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#include 
#include 
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int main(int argc, char* argv[])
{
    gp_Dir  Z(0.0, 0.0, 1.0);
    gp_Dir  ZX(1.0, 0.0, 1.0);
    gp_Pnt center(0, 0, 0.0);
    gp_Pnt xr(0.5, 0, 0.0);
    gp_Pnt yr(0.0, 1.0, 0.0);
    gp_Pnt zr(0.0, 0.0, 7.0);
    gp_Ax2  wb(center, Z);
    gp_Circ  wbcircle(wb, 0.125 / 2);
    TopoDS_Edge wbe = BRepBuilderAPI_MakeEdge(wbcircle);
    TopoDS_Edge xline = BRepBuilderAPI_MakeEdge(center, xr);
    TopoDS_Edge yline = BRepBuilderAPI_MakeEdge(center, yr);
    TopoDS_Edge zline = BRepBuilderAPI_MakeEdge(center, zr);
    BRepPrimAPI_MakeCylinder aCylinderMaker(10.0, 20.0);
    TopoDS_Shape aCylinder = aCylinderMaker.Shape();
    gp_Pln TPlane(center, ZX);
    TopoDS_Face tanF = BRepBuilderAPI_MakeFace(TPlane);
    TopoDS_Shape out = BRepPrimAPI_MakePrism(zline, 10*ZX);
    
    //TopoDS_Edge out = BRepBuilderAPI_MakeEdge(c1);
    Viewer vout(50, 50, 500, 500);
    vout << out;
    vout << xline;
    vout << yline;
    vout << zline;
    vout.StartMessageLoop();
    return 0;
}
​

2、沿路径拉伸

#include 
#include 
#include 
#include 
#include 
#include 
#include 
​
#include 
#include 
#include 
#include 
#include 
#include 
#include 
​
#include 
#include 
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#include"Viewer.h"
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​
#include 
#include 
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int main(int argc, char* argv[])
{
    gp_Dir  Z(0.0, 0.0, 1.0);
    gp_Dir  ZX(1.0, 0.0, 1.0);
    gp_Pnt center(0, 0, 0.0);
    gp_Pnt xr(0.5, 0, 0.0);
    gp_Pnt yr(0.0, 1.0, 0.0);
    gp_Pnt zr(0.0, 0.0, 7.0);
    gp_Ax2  wb(center, Z);
    gp_Circ  wbcircle(wb, 0.125 / 2);
    TopoDS_Edge wbe = BRepBuilderAPI_MakeEdge(wbcircle);
    TopoDS_Edge xline = BRepBuilderAPI_MakeEdge(center, xr);
    TopoDS_Edge yline = BRepBuilderAPI_MakeEdge(center, yr);
    TopoDS_Edge zline = BRepBuilderAPI_MakeEdge(center, zr);
    BRepPrimAPI_MakeCylinder aCylinderMaker(10.0, 20.0);
    TopoDS_Shape aCylinder = aCylinderMaker.Shape();
    gp_Pln TPlane(center, ZX);
    TopoDS_Face tanF = BRepBuilderAPI_MakeFace(TPlane);
    Handle(Geom_TrimmedCurve) arc = GC_MakeArcOfCircle(gp_Pnt(0, 0, 0), gp_Pnt(10, 10, 0), gp_Pnt(0, 20, 0));
    Handle(Geom_TrimmedCurve) arc2 = GC_MakeArcOfCircle(gp_Pnt(0, 20, 0), gp_Pnt(-10, 30, 0), gp_Pnt(0, 40, 0));
    Handle(Geom_TrimmedCurve) seg = GC_MakeSegment(gp_Pnt(0, 40, 0), gp_Pnt(20, 40, 0));
    Handle(Geom_TrimmedCurve) seg1 = GC_MakeSegment(gp_Pnt(20, 40, 0), gp_Pnt(20, 60, 0));
    TopoDS_Edge arcEdge = BRepBuilderAPI_MakeEdge(arc);
    TopoDS_Edge arcEdge1 = BRepBuilderAPI_MakeEdge(arc2);
    TopoDS_Edge segEdge = BRepBuilderAPI_MakeEdge(seg);
    TopoDS_Edge segEdge1 = BRepBuilderAPI_MakeEdge(seg1);
    TopoDS_Wire arcWire = BRepBuilderAPI_MakeWire(arcEdge, arcEdge1, segEdge/*, segEdge1*/); //return arcWire;
    TopoDS_Shape out = BRepOffsetAPI_MakePipe(arcWire,zline);
    
    //TopoDS_Edge out = BRepBuilderAPI_MakeEdge(c1);
    Viewer vout(50, 50, 500, 500);
    vout << out;
    vout << xline;
    vout << yline;
    vout << zline;
    vout.StartMessageLoop();
    return 0;
}
​

3、变形拉伸

#include 
#include 
#include 
#include 
#include 
#include 
#include 
​
#include 
#include 
#include 
#include 
#include 
#include 
#include 
​
#include 
#include 
​
#include"Viewer.h"
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​
#include 
#include 
​
​
int main(int argc, char* argv[])
{
    gp_Dir  Z(0.0, 0.0, 1.0);
    gp_Dir  ZX(1.0, 0.0, 1.0);
    gp_Pnt center(0, 0, 0.0);
    gp_Pnt xr(0.5, 0, 0.0);
    gp_Pnt yr(0.0, 1.0, 0.0);
    gp_Pnt zr(0.0, 0.0, 7.0);
    gp_Ax2  wb(center, Z);
    gp_Circ  wbcircle(wb, 0.125 / 2);
    TopoDS_Edge wbe = BRepBuilderAPI_MakeEdge(wbcircle);
    TopoDS_Edge xline = BRepBuilderAPI_MakeEdge(center, xr);
    TopoDS_Edge yline = BRepBuilderAPI_MakeEdge(center, yr);
    TopoDS_Edge zline = BRepBuilderAPI_MakeEdge(center, zr);
    TopoDS_Shape S = BRepPrimAPI_MakeBox(200., 300., 150.);
    BRepOffsetAPI_DraftAngle adraft(S);
    TopExp_Explorer Ex;
    for (Ex.Init(S, TopAbs_FACE); Ex.More(); Ex.Next()) 
    {
        TopoDS_Face F = TopoDS::Face(Ex.Current());
        Handle(Geom_Plane) surf = Handle(Geom_Plane)::DownCast(BRep_Tool::Surface(F));
        gp_Pln apln = surf->Pln();
        gp_Dir dirF = apln.Axis().Direction();
        if (dirF.IsNormal(gp_Dir(0., 0., 1.), Precision::Angular()))
            adraft.Add(F, gp_Dir(0., 0., 1.), 15. * M_PI / 180, gp_Pln(gp::XOY()));
    }
    TopoDS_Shape out = adraft.Shape();
    //TopoDS_Edge out = BRepBuilderAPI_MakeEdge(c1);
    Viewer vout(50, 50, 500, 500);
    vout << out;
    vout << xline;
    vout << yline;
    vout << zline;
    vout.StartMessageLoop();
    return 0;
}
​