PythonOCC基础使用：建模——基础三维实体（球体，长方体，棱柱/台/锥，圆柱/锥/台，环形）

逃离我推掉我的手 2021-12-11 00:41 485阅读 0赞

下面会列举一些基本三维图形命令：  
**实现的国产云端CAD** [**www.yuntucad.com**][www.yuntucad.com]

*  长方体
 *  ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc1NTM4NA_size_16_color_FFFFFF_t_70]

from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeBox
    from OCC.Display.OCCViewer import rgb_color
    #长方体
    my_box = BRepPrimAPI_MakeBox (10,10,10).Shape()
    if __name__ == "__main__":
        from OCC.Display.SimpleGui import init_display
        display, start_display, add_menu, add_function_to_menu = init_display()
        display.DisplayShape(my_box,update=True,color=rgb_color(0,1,0))
        start_display()

*  球体
 *  ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc1NTM4NA_size_16_color_FFFFFF_t_70 1]

from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeSphere
    from OCC.Core.gp import gp_Pnt
    from OCC.Display.OCCViewer import rgb_color
    #qiu
    center=gp_Pnt(5,5,10)
    radius=19
    my_sphere =BRepPrimAPI_MakeSphere(center ,radius).Shape()
    if __name__ == "__main__":
        from OCC.Display.SimpleGui import init_display
        display, start_display, add_menu, add_function_to_menu = init_display()
        display.DisplayShape(my_sphere, update=True)
        display.DisplayShape(my_sphere, update=True, color=rgb_color(0, 1,0 ))
        start_display()

*  圆锥（gp\_Ax2可以理解为射线，是由一点和法线组成）
 *  ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc1NTM4NA_size_16_color_FFFFFF_t_70 2]

from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeSphere, BRepPrimAPI_MakeCone
    from OCC.Core.gp import gp_Pnt, gp_Ax2, gp_Dir
    from OCC.Display.OCCViewer import rgb_color
    #圆锥
    my_cone = BRepPrimAPI_MakeCone(1,0,4).Shape()
    my_cone=BRepPrimAPI_MakeCone(gp_Ax2 (gp_Pnt(0,0,0),gp_Dir (0,0,-1)),0,2,4).Shape( )
    if __name__ == "__main__":
        from OCC.Display.SimpleGui import init_display
        display, start_display, add_menu, add_function_to_menu = init_display()
        display.DisplayShape(my_cone, update=True)
        # display.DisplayShape(my_cone, update=True, color=rgb_color(0, 1, 1 ))
        start_display()

*  圆台
 *  ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc1NTM4NA_size_16_color_FFFFFF_t_70 3]

from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeSphere, BRepPrimAPI_MakeCone
    from OCC.Core.gp import gp_Pnt, gp_Ax2, gp_Dir
    from OCC.Display.OCCViewer import rgb_color
    #圆台
    my_cone = BRepPrimAPI_MakeCone(1,0,4).Shape()
    my_cone=BRepPrimAPI_MakeCone(gp_Ax2 (gp_Pnt(0,0,0),gp_Dir (0,0,-1)),1,2,4).Shape( )
    if __name__ == "__main__":
        from OCC.Display.SimpleGui import init_display
        display, start_display, add_menu, add_function_to_menu = init_display()
        display.DisplayShape(my_cone, update=True)
        # display.DisplayShape(my_cone, update=True, color=rgb_color(0, 1, 1 ))
        start_display()

*  圆柱
 *  ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc1NTM4NA_size_16_color_FFFFFF_t_70 4]

from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeCylinder
    #圆柱
    my_cylinder=BRepPrimAPI_MakeCylinder(10,50).Shape()
    if __name__ == "__main__":
        from OCC.Display.SimpleGui import init_display
        display, start_display, add_menu, add_function_to_menu = init_display()
        display.DisplayShape(my_cylinder,update=True)
        start_display()

*  环形
 *  ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc1NTM4NA_size_16_color_FFFFFF_t_70 5]

from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeTorus
    from OCC.Core.gp import gp_Pnt
    from OCC.Core.gp import gp_Ax2,gp_Dir
    my_Torus = BRepPrimAPI_MakeTorus(gp_Ax2 (gp_Pnt (0,0,2),gp_Dir (0,0,1)),0.55,0.1).Shape()
    if __name__ == "__main__":
        from OCC.Display.SimpleGui import init_display
        display, start_display, add_menu, add_function_to_menu = init_display()
        display.DisplayShape(my_Torus, update=True)
        start_display()

*  棱锥
 *  ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc1NTM4NA_size_16_color_FFFFFF_t_70 6]

my_wedge = BRepPrimAPI_MakeWedge(gp_Ax2(gp_Pnt(4, 0,4), gp_Dir(1,1,0)),4,4,4,2,2,2,2).Shape()

*  棱台
 *  ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc1NTM4NA_size_16_color_FFFFFF_t_70 7]

my_wedge = BRepPrimAPI_MakeWedge(gp_Ax2 (gp_Pnt (-4,-8,-4),gp_Dir (0,0,1)),4,4,8,1,1,3,7).Shape()

*  棱柱
 *  ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc1NTM4NA_size_16_color_FFFFFF_t_70 8]

my_wedge1 = BRepPrimAPI_MakeWedge(gp_Ax2(gp_Pnt(2, -6, -4), gp_Dir(0, 0, 1)), 2, 3, 4, 1).Shape()

[www.yuntucad.com]: https://www.yuntucad.com
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