Standard
STD 101-0001
Volvo Group
Version
4
Page
17
4.3.3.5 Leader lines
Leader lines directed to represented line elements shall terminate with an arrowhead. When an indicated element
is a surface, the leader line shall terminate with a dot within the bounds of the surface. Leader lines may terminate
on the rim or edge of a feature of size if this provides a clearer understanding of the intention of the annotation. A
continuous (solid) leader line shall be used to indicate all datum targets in a DSM.
4.3.3.6 Direction-dependent tolerances
When a direction-dependent tolerance (e.g. straightness) is applied to a DSM, the direction shall be explicitly
defined as follows.
•
Supplemented geometry is added to the model to show the direction of application. The model geometry
to which the tolerance applies shall be the associated geometry for the annotation, see figures 6a and 6b.
•
Direction-dependent tolerances may use a model-coordinate-system vector to define the direction of
application. The model coordinate system vector, associated entity and tolerance shall be organized as
an associated group, see figure 13.
•
As indicated in
STD 112-0003
– Geometrical tolerances.
Z
Visual response
Query
Z
Figure 13 – Direction of tolerance defined by coordinate system vector
4.3.3.7 Indicated limited application of a tolerance
Limited length, area and location indicators may consist of, but are not limited to, supplemental geometry and
associative annotation. When supplemental geometry is used, it shall be located on the model geometry, see
figure 14.
