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）

下面会列举一些基本三维图形命令：
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• 长方体
• 

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
• 

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）
• 

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
• 

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
• 

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
• 

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
• 

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
• 

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
• 

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