2012

Sets the arrowhead for the first dimension line. When you change the first
arrowhead type, the second arrowhead automatically changes to match it.
(DIMBLK1 system variable)
To specify a user-defined arrowhead block, select User Arrow. The Select
Custom Arrow Block dialog box is displayed. Select the name of a user-defined
arrowhead block. (The block must be in the drawing.)
Second
Sets the arrowhead for the second dimension line. (DIMBLK2 system variable)
To specify a user-defined arrowhead block, select User Arrow. The Select
Custom Arrow Block dialog box is displayed. Select the name of a user-defined
arrowhead block. (The block must be in the drawing.)
Leader
Sets the arrowhead for the leader line. (DIMLDRBLK system variable)
To specify a user-defined arrowhead block, select User Arrow. The Select
Custom Arrow Block dialog box is displayed. Select the name of a user-defined
arrowhead block. (The block must be in the drawing.)
Arrow Size
Displays and sets the size of arrowheads. (DIMASZ system variable)
NOTE blocks cannot be used as custom arrowheads for dimensions or leaders.
Center Marks
Controls the appearance of center marks and centerlines for diameter and
radial dimensions. The DIMCENTER, DIMDIAMETER, and DIMRADIUS
commands use center marks and centerlines. For DIMDIAMETER and
DIMRADIUS, the center mark is drawn only if you place the dimension line
outside the circle or arc.
Type
Sets the type of center mark or line to use.
None
Creates no center mark or centerline. The value is stored as 0 in the DIMCEN
system variable.
Mark
Creates a center mark. The size of the center mark is stored as a positive value
in the DIMCEN system variable.
372 | Chapter 5 D Commands