2011
Table Of Contents
- Contents
- Basic Customization
- Custom Linetypes
- Custom Hatch Patterns
- User Interface Customization
- DIESEL
- Command Scripts
- Introduction to Programming Interfaces
- Shapes and Shape Fonts
- Overview of Shape Files
- Create Shape Definition Files
- Shape Descriptions
- Vector Length and Direction Code
- Special Codes
- Use Special Codes
- Codes 0, 1, and 2: End of Shape and Draw Mode Control
- Codes 3 and 4: Size Control
- Codes 5 and 6: Location Save/Restore
- Code 7: Subshape
- Codes 8 and 9: X-Y Displacements
- Code 00A: Octant Arc
- Code 00B: Fractional Arc
- Codes 00C and 00D: Bulge-Specified Arcs
- Code 00E: Flag Vertical Text Command
- Text Font Descriptions
- Sample Files
- Big Font Descriptions
- Unicode Font Descriptions
- Superscripts and Subscripts in SHX Files
- Index
Pattern Descriptors
Each pattern descriptor field specifies the length of segments making up the
linetype, separated by commas (no spaces are allowed):
■ A positive decimal number denotes a pen-down (dash) segment of that
length.
■ A negative decimal number denotes a pen-up (space) segment of that
length.
■ A dash length of 0 draws a dot.
You can enter up to 12 dash-length specifications per linetype, provided they
fit on one 80-character line in the LIN file. You need to include only one
complete repetition of the linetype pattern defined by pattern descriptors.
When the linetype is drawn, AutoCAD for Mac uses the first pattern descriptor
for the starting and ending dashes. Between the starting and ending dashes,
the pattern dash specifications are drawn sequentially, beginning with the
second dash specification and restarting the pattern with the first dash
specification when required.
A-type alignment requires that the first dash length be 0 or greater (a pen-down
segment). The second dash length should be less than 0 if you need a pen-up
segment and more than 0 if you are creating a continuous linetype. You must
have at least two dash specifications for A-type alignment.
To create a simple linetype from the Command prompt
1 At the command prompt, enter -linetype.
2 Enter c (Create).
3 Enter a name for the linetype and press Enter.
The linetype name can include up to 255 characters. Linetype names can
contain letters, digits, and the special characters dollar sign ($), hyphen
(-), and underscore (_). Linetype names cannot include blank spaces.
4 In the Create or Append Linetype File dialog box, select a location from
the Where drop-down list and specify a LIN linetype library file. Click
Save.
If you select an existing file, the new linetype name is added to the
linetype names in the file.
5 Enter text that describes the new linetype (optional).
22 | Chapter 2 Custom Linetypes