Standard
STD 101-0001
Volvo Group
Version
4
Page
34
Figure 37
NOTE: This is the same rule as in 2-D
The graphical symbol can be attached to the dimension in connection with a feature-of-size dimension.
See figure 38.
Figure 38
NOTE: This is the same rule as in 2-D.
The graphical symbol can be attached to extension lines that are not single. See figure 39.
Figure 39
Two of the symbols for indication of surface lay described in
STD 120-0004
have an interpretation rule which is
unambiguous for indications on orthographic drawing views only. These are the symbols used for requirements of
the surface lay orientation to be parallel or perpendicular to the plane of projection.
When these two symbols are used in 3-D, there is a need to use supplemental geometry or a model-coordinate-
system vector to define a direction that shall correspond to the projection plane for orthographic views. The symbol
for indication of surface lay will then tell if the surface lay shall be parallel or perpendicular to the supplemental
geometry or model-coordinate-system vector, see examples in figures 40 and 41.
The rules how to use supplemental geometry or model-coordinate-system vector are described in section 4.3.3.6.
