DXF Group Codes
ENTITIES Section
TEXT

The following group codes apply to text entities.

Text group codes
Group codes Description

100

Subclass marker (AcDbText)

39

Thickness (optional; default = 0)

10

First alignment point (in OCS)
DXF: X value; APP: 3D point

20, 30

DXF: Y and Z values of first alignment point (in OCS)

40

Text height

1

Default value (the string itself)

50

Text rotation (optional; default = 0)

41

Relative X scale factor--width (optional; default = 1).
This value is also adjusted when fit-type text is used.

51

Oblique angle (optional; default = 0)

7

Text style name (optional, default = STANDARD)

71

Text generation flags (optional, default = 0):
2 = Text is backward (mirrored in X),
4 = Text is upside down (mirrored in Y)

72

Horizontal text justification type (optional, default = 0) integer codes (not bit-coded)
0 = Left;1= Center; 2 = Right
3 = Aligned (if vertical alignment = 0)
4 = Middle (if vertical alignment = 0)
5 = Fit (if vertical alignment = 0)
See the following table for clarification

11

Second alignment point (in OCS).
DXF: X value; APP: 3D point.
This value is meaningful only if the value of a 72 or 73 group is nonzero (if the justification is anything other than baseline/left)

21, 31

DXF: Y and Z values of second alignment point (in OCS)

210

Extrusion direction. (optional; default = 0, 0, 1).
DXF: X value; APP: 3D vector

220, 230

DXF: Y and Z values of extrusion direction

100

Subclass marker (AcDbText)

73

Vertical text justification type (optional, default = 0): integer codes (not bit- coded)
0 = Baseline; 1 = Bottom; 2 = Middle; 3 = Top
See the following table for clarification.

The following table describes the group codes 72 (horizontal alignment) and 73 (vertical alignment) in greater detail.

Group 72 and 73 integer codes
Group 73
 Group 72
0
1
2
3
4
5

3 (top)

TLeft

TCenter

TRight

      

2 (middle)

MLeft

MCenter

MRight

      

1 (bottom)

BLeft

BCenter

BRight

      

0 (baseline)

Left

Center

Right

Aligned

Middle

Fit

If group 72 and/or 73 values are nonzero then the first alignment point values are ignored and AutoCAD calculates new values based on the second alignment point and the length and height of the text string itself (after applying the text style). If the 72 and 73 values are zero or missing, then the second alignment point is meaningless.