AutoCAD® 2002 - Autodesk

Ordinate dimension group codes (continued)
Group codes
Description
23, 33 DXF: Y and Z values of definition point for linear and angular
dimensions (in WCS)
14 Definition point for linear and angular dimensions (in WCS)
DXF: X value; APP: 3D point
24, 34 DXF: Y and Z values of definition point for linear and angular
dimensions (in WCS)
The point (13,23,33) specifies the feature location and the point (14,24,34)
specifies the leader end point. The point (11,21,31) specifies the midpoint of
the dimension text. Point (10,20,30) is placed at the origin of the UCS that is
current when the dimension is created.
Dimension Style Overrides
Dimension style overrides can be applied to dimension, leader, and tolerance
entities. Any overrides applied to these entities are stored in the entity as
xdata. The overridden dimension variable group codes and the related values
are contained within group 1002 control strings. The following example
shows the xdata of a dimension entity where the DIMTOL and DIMCLRE variables
have been overridden.
(setq diment (car (entsel)))
; Select dimension entity
(setq elst (entget diment '("ACAD"))) ; Get entity definition list
(assoc -3 elst)
; Extract xdata only
This code returns the following:
(-3 ("ACAD" Start of the ACAD APPID section of xdata
(1000 . "DSTYLE") (1002 . "{") Beginning of the dimstyle subsection
(1070 . 177) (1070 . 3) The DIMCLRE (code 177) override + value (3)
(1070 . 71) (1070 . 1) The DIMTOL (code 71) override + value (1)
(1002 . "}") )) End dimstyle subsection and ACAD section
ELLIPSE
The following group codes apply to ellipse entities. In addition to the group
codes described here, see “Common Group Codes for Entities” on page 60.
76 | Chapter 6 ENTITIES Section