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以下的代码是实现如何分析出一个实体的基准面，很多功能都用得上

以下内容为程序代码:

$$查找基准面$$
entity/a123,ST,PLA(6)
number/PO(6),pt(6),ps(6),di(7),mo(6)
STRING/zh(30)

N10:
MASK/70 $$只选实体
ident/'选择体或面',st,rsp
jump/n10:,trm:,,,rsp
draw/off
pO=solbox/ST
PT(1)=minf(pO(1),pO(4))
PT(4)=maxf(pO(1),pO(4))
PT(2)=minf(pO(2),pO(5))
PT(5)=maxf(pO(2),pO(5))
PT(3)=minf(pO(3),pO(6))
PT(6)=maxf(pO(3),pO(6))

pla(1)=PLANE/YZPLAN,pt(1)-10
pla(4)=PLANE/YZPLAN,pt(4)+10
pla(2)=PLANE/XZPLAN,pt(2)-10
pla(5)=PLANE/XZPLAN,pt(5)+10
pla(3)=PLANE/XYPLAN,pt(3)-10
pla(6)=PLANE/XYPLAN,pt(6)+10
di=reldst/pla(1),st" $$测量两个物体的距离
PT(1)=PT(1)-10+di(7) $$mindis(7)为距离
di=reldst/pla(2),st" $$测量两个物体的距离
PT(2)=PT(2)-10+di(7) $$mindis(7)为距离
di=reldst/pla(3),st" $$测量两个物体的距离
PT(3)=PT(3)-10+di(7) $$mindis(7)为距离
di=reldst/pla(4),st" $$测量两个物体的距离
PT(4)=PT(4)+10-di(7) $$mindis(7)为距离
di=reldst/pla(5),st" $$测量两个物体的距离
PT(5)=PT(5)+10-di(7) $$mindis(7)为距离
di=reldst/pla(6),st" $$测量两个物体的距离
PT(6)=PT(6)+10-di(7) $$mindis(7)为距离
$$ print/pt
delete/pla(1..6)
$$$$$$$$$$$$$$$$$$$$
ps(1)=pt(1)
ps(2)=pt(2)
ps(3)=pt(3)
ps(4)=pt(4)
ps(5)=pt(5)
ps(6)=pt(6)

mask/22
INEXTE $$初始化实体
M10:
st=NEXTE/IFEND,m30:" $$选择下一实体
JUMP/f20:
M20:
draw/on
&COLOR(st)=175
JUMP/trm:
M30:
print/'铜公无法识别!!!'


trm:
&DECPL=4
MASK/all
halt

$$$$$$$$$$$$$$$$$$$$$$$$$$$


f20:
pO=solbox/ST

f30:
draw/off
PT(1)=minf(pO(1),pO(4))
PT(4)=maxf(pO(1),pO(4))
PT(2)=minf(pO(2),pO(5))
PT(5)=maxf(pO(2),pO(5))
PT(3)=minf(pO(3),pO(6))
PT(6)=maxf(pO(3),pO(6))

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$z轴识别$$
w=0
IF/absf(PT(1)-PS(1))＞1,JUMP/Mz10:
JUMP/Mi20:
Mz10:
IF/absf(PT(4)-PS(4))＞1,JUMP/My11:
JUMP/Mi20:
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$y轴识别$$
My11:

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$x轴识别$$
Mx11:
w=2
IF/absf(PT(2)-PS(2))＞1,JUMP/Mx10:
JUMP/Mi20:
Mx10:
IF/absf(PT(5)-PS(5))＞1,JUMP/M10:

MI20:
pla(1)=PLANE/YZPLAN,(PT(1)-10)
pla(4)=PLANE/YZPLAN,(PT(4)+10)
pla(2)=PLANE/XZPLAN,(PT(2)-10)
pla(5)=PLANE/XZPLAN,(PT(5)+10)
pla(3)=PLANE/XYPLAN,(PT(3)-10)
pla(6)=PLANE/XYPLAN,(PT(6)+10)
di=reldst/pla(1),ST
PT(1)=PT(1)-10+DI(7)
di=reldst/pla(2),ST
PT(2)=PT(2)-10+DI(7)
di=reldst/pla(3),ST
PT(3)=PT(3)-10+DI(7)
di=reldst/pla(4),ST
PT(4)=PT(4)+10-DI(7)
di=reldst/pla(5),ST
PT(5)=PT(5)+10-DI(7)
di=reldst/pla(6),ST
PT(6)=PT(6)+10-DI(7)
DELETE/PLA(1..6)
mo(1)=modf(pt(1),0.001)
IF/MO(1)＜0.0005,pt(1)=pt(1)-mo(1)
IF/MO(1)＞=0.0005,pt(1)=pt(1)+0.001-mo(1)
mo(2)=modf(pt(2),0.001)
IF/MO(2)＜0.0005,pt(2)=pt(2)-mo(2)
IF/MO(2)＞=0.0005,pt(2)=pt(2)+0.001-mo(2)
mo(3)=modf(pt(3),0.001)
IF/MO(3)＜0.0005,pt(3)=pt(3)-mo(3)
IF/MO(3)＞=0.0005,pt(3)=pt(3)+0.001-mo(3)
mo(4)=modf(pt(4),0.001)
IF/MO(4)＜0.0005,pt(4)=pt(4)-mo(4)
IF/MO(4)＞=0.0005,pt(4)=pt(4)+0.001-mo(4)
mo(5)=modf(pt(5),0.001)
IF/MO(5)＜0.0005,pt(5)=pt(5)-mo(5)
IF/MO(5)＞=0.0005,pt(5)=pt(5)+0.001-mo(5)
mo(6)=modf(pt(6),0.001)
IF/MO(6)＜0.0005,pt(6)=pt(6)-mo(6)
IF/MO(6)＞=0.0005,pt(6)=pt(6)+0.001-mo(6)
ifthen/w==0
if/ps(3)==pt(3) andps(6)==pt(6),jump/w100:"
if/ps(1)＜＞pt(1),JUMP/M10:
if/ps(2)＜＞pt(2),JUMP/M10:
if/ps(4)＜＞pt(4),JUMP/M10:
if/ps(5)＜＞pt(5),JUMP/M10:
if/absf(ps(3)-pt(3))＜1 or absf(ps(6)-pt(6))＜1,JUMP/M10:"
JUMP/M20:
endif
ifthen/w==1
w100:
if/ps(1)＜＞pt(1),JUMP/M10:
if/ps(4)＜＞pt(4),JUMP/M10:
if/absf(ps(2)-pt(2))＜1 or absf(ps(5)-pt(5))＜1,JUMP/M10:"
JUMP/M20:
endif
ifthen/w==2
if/ps(3)＜＞pt(3),JUMP/M10:
if/ps(2)＜＞pt(2),JUMP/M10:
if/ps(6)＜＞pt(6),JUMP/M10:
if/ps(5)＜＞pt(5),JUMP/M10:
if/absf(ps(1)-pt(1))＜1 or absf(ps(4)-pt(4))＜1,JUMP/M10:"
JUMP/M20:
endif

$$ 代码结束