01 pythonocc基础：基础三维实体

一、基础三维实体

1、长方体

my_box = BRepPrimAPI_MakeBox (10,20,30).Shape() 

2、球体

center=gp_Pnt(5,5,10)
radius=19
my_sphere =BRepPrimAPI_MakeSphere(center ,radius).Shape()

3、圆柱、圆锥

#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)),1,2,4).Shape( ) 
#圆柱
 my_cyliner = BRepPrimAPI_MakeCylinder (gp_Ax2 (gp_Pnt (-3,-3,-4),gp_Dir (0,0,-1)),7,10).Shape()

4、环

my_Torus = BRepPrimAPI_MakeTorus(gp_Ax2 (gp_Pnt (0,0,2),gp_Dir (0,0,1)),0.55,0.1).Shape()

5、棱柱/棱锥/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()
my_wedge1 = BRepPrimAPI_MakeWedge(gp_Ax2(gp_Pnt(2, -6, -4), gp_Dir(0, 0, 1)), 2, 3, 4, 1).Shape()
my_wedge2 = BRepPrimAPI_MakeWedge(gp_Ax2(gp_Pnt(4, 0,4), gp_Dir(1,1,0)),4,4,4,2,2,2,2).Shape()

6、综合示例

#!/usr/bin/env python
# encoding: utf-8

from OCC.Core.BRepPrimAPI import (BRepPrimAPI_MakeBox,BRepPrimAPI_MakeSphere,BRepPrimAPI_MakeCone,
                                BRepPrimAPI_MakeCylinder,BRepPrimAPI_MakeTorus,BRepPrimAPI_MakeWedge)
from OCC.Core.gp import gp_Pnt,gp_Ax2,gp_Dir
from OCC.Display.SimpleGui import init_display
display, start_display, add_menu, add_function_to_menu = init_display()

def displaybox():
    my_box = BRepPrimAPI_MakeBox (10,20,30).Shape()
    display.DisplayShape(my_box,update=True)
    start_display()

def displayball():
    center=gp_Pnt(5,5,10)
    radius=19
    my_sphere =BRepPrimAPI_MakeSphere(center ,radius).Shape()
    display.DisplayShape(my_sphere,update=True)
    start_display()

def displaycone():
    #圆锥
    my_cone = BRepPrimAPI_MakeCone(1,0,4).Shape()
    display.DisplayShape(my_cone,update=True)
    start_display()

def displayfrustum():
    my_cone=BRepPrimAPI_MakeCone (gp_Ax2 (gp_Pnt(0,0,0),gp_Dir (0,0,-1)),1,2,4).Shape( )
    display.DisplayShape(my_cone,update=True)
    start_display()

def displaycylinder():
    #圆柱
    my_cylinder = BRepPrimAPI_MakeCylinder (gp_Ax2 (gp_Pnt (-3,-3,-4),gp_Dir (0,0,-1)),7,10).Shape()
    display.DisplayShape(my_cylinder,update=True)
    start_display()

def displaytorus():
    my_Torus = BRepPrimAPI_MakeTorus(gp_Ax2(gp_Pnt(0, 0, 2), gp_Dir(0, 0, 1)), 0.55, 0.1).Shape()
    display.DisplayShape(my_Torus,update=True)
    start_display()

def displaywedge():
    my_wedge = BRepPrimAPI_MakeWedge(gp_Ax2(gp_Pnt(-4, -8, -4), gp_Dir(0, 0, 1)), 4, 4, 8, 1, 1, 3, 7).Shape()
    display.DisplayShape(my_wedge,update=True)
    start_display()

def displaywedge1():
    my_wedge1 = BRepPrimAPI_MakeWedge(gp_Ax2(gp_Pnt(2, -6, -4), gp_Dir(0, 0, 1)), 2, 3, 4, 1).Shape()
    display.DisplayShape(my_wedge1,update=True)
    start_display()

def displaywedge2():
    my_wedge2 = BRepPrimAPI_MakeWedge(gp_Ax2(gp_Pnt(4, 0, 4), gp_Dir(1, 1, 0)), 4, 4, 4, 2, 2, 2, 2).Shape()
    # display.display_trihedron()
    display.initialized()
    display.DisplayShape(my_wedge2,update=True)
    start_display()

if __name__ == '__main__':
    add_menu('display')
    add_function_to_menu('display', displaybox)
    add_function_to_menu('display', displayball)
    add_function_to_menu('display', displaycone)
    add_function_to_menu('display', displayfrustum)
    add_function_to_menu('display', displaycylinder)
    add_function_to_menu('display', displaytorus)
    add_function_to_menu('display', displaywedge)
    add_function_to_menu('display', displaywedge1)
    add_function_to_menu('display', displaywedge2)
    start_display()

实际效果