ГОСТ Р ИСО 10303-502—2006
4,4 curve ^
( 2,1 (I) )
—3.1 placement^
________
_______________
geometric_representation_item
(DER)dim
•А
j dimension_count
.
2
3,2 direction^)
< (б , 16 vertex_poinT^
3,3 vector
)
< (6 .1 2 edgecurve^
3,7 cartesian_transformation_operator^)
|
i—r-
j
-
w
--
i
-
r
-
e
--
fr
--
a
-
m
---
e
---
s
--
e
-
l
-
e
-
c
--
t
-----j
i
1*i
.
l __L__
I
1
shell based wireframe model
sbwm_boundarv Sf I:?]
" J Z
[ shell i
^6.10 wire_shctP^^6,9 vertex shelT^
( 4.5 curve
)
(
2
(
6
)
У
point
Z J ~
IГ ’
ii
i
—
i geometric set select
i— l----------------------------1
j trimming select J
iparametcrvaluc
lcngth_mcasurc
i coordinates L[l:3]
cartesian_point
}o
y o uуо у
parent_pt
pointrcplica
-Q-
transformation
J
(
2,2(5) )
(
_у1 2,5(4)
I;
i~
^ ___
_
__________
й
__________________ ^
^ 2 2(3) ^(2 ,3 (5 )’
^ 2,1(3)
J
^2j2(4)^
( ^ 3J cartcsian transformation opcrator^ )
Рисунок C .2— alc_shell_based_wireframe — EXPRESS-G диаграмма 2 из 6
13