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
Use AutoLISP Applications
See also:
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Overview of File Organization on page 3
AutoLISP applications are stored in ASCII text files that you can edit. Before
you can use an AutoLISP application, it must first be loaded.
AutoLISP applications are stored in ASCII text files with the .lsp extension.
These files generally have a header portion that describes a routine, its use,
and any specific instructions. This header might also include comments that
document the author and the legal information regarding the use of the
routine. Comments are preceded by a semicolon (;). You can view and edit
these files with a text editor or word processor that can produce an ASCII text
file.
Before you can use an AutoLISP application, it must first be loaded. You can
use the APPLOAD command or the AutoLISP load function to load an
application. Loading an AutoLISP application loads the AutoLISP code from
the LSP file into your system's memory.
Loading an application with the load function involves entering AutoLISP
code at the command prompt. If the load function is successful, it displays
the value of the last expression in the file at the command prompt. This is
usually the name of the last function defined in the file or instructions on
using the newly loaded function. If load fails, it returns an AutoLISP error
message. A load failure can be caused by incorrect coding in the file or by
entering the wrong file name at the command prompt. The syntax for the
load function is
(load filename [onfailure])
This syntax shows that the load function has two arguments: filename, which
is required, and onfailure, which is optional. When loading an AutoLISP file
at the command prompt, you typically supply only the filename argument.
The following example loads the AutoLISP file newfile.lsp.
Command: (load "newfile")
The .lsp extension is not required. This format works for any LSP file in the
current library path.
To load an AutoLISP file that is not in the library path, you must provide the
full path and file name as the filename argument.
Command: (load "/files/morelisp/newfile")
Use AutoLISP Applications | 95