2012
Table Of Contents
- Contents
- Basic Customization
- Overview of Customization
- Organize Program and Support Files
- Customize a Publish to Web Template
- Define Custom Commands
- Record and Modify Action Macros
- Custom Linetypes
- Custom Hatch Patterns
- User Interface Customization
- Understand User Interface Customization
- Work with the Customize User Interface (CUI) Editor
- Create and Manage Customization Files
- Customize Commands
- Overview of Commands
- Create, Edit, and Reuse Commands
- Create Macros
- Overview of Macros
- Use Special Control Characters in Macros
- Pause for User Input in Macros
- Provide International Support in Macros
- Use Built-in Commands in Macros
- Repeat Commands in Macros
- Use Single Object Selection Mode in Macros
- Use Macros to Swap User Interface Elements
- Use Conditional Expressions in Macros
- Use AutoLISP in Macros
- Control the Display of Command Items
- Assign Search Tags
- Create Tooltips and Extended Help for Commands
- Create Status Line Help Messages
- Create and Manage Images for Commands
- Customize User Interface Elements
- Load an AutoLISP File
- Customize Workspaces
- Transfer and Migrate Customization
- Customize User Interface (CUI) Editor FAQs
- DIESEL
- Slides and 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
- Migrate and Transfer Custom Settings and Files
- Index
Quick Reference
Commands
LOAD
Makes shapes available for use by the SHAPE command.
SHAPE
Inserts a shape from a shape file that has been loaded using LOAD.
Codes 00C and 00D: Bulge-Specified Arcs
Special codes 00C and 00D (12 and 13) provide another mechanism for
including arc segments in shape descriptions.
They are similar to codes 8 and 9 in that you can use them to specify X-Y
displacements. However, codes 00C and 00D draw arcs by applying a bulge
factor to the displacement vector. Code 00C draws one arc segment, while
code 00D draws multiple arc segments (polyarcs) until it is terminated by a
(0,0) displacement.
Code 00C must be followed by three bytes describing the arc:
0C,X-displacement,Y-displacement,Bulge
Both the X and Y displacement and the bulge, which specifies the curvature
of the arc, can range from -127 to +127. If the line segment specified by the
displacement has length D, and the perpendicular distance from the midpoint
of that segment has height H, the magnitude of the bulge is ((2* H / D) * 127).
The sign is negative if the arc from the current location to the new location
is clockwise.
A semicircle has bulge 127 (or -127) and is the greatest arc that can be
represented as a single-arc segment using these codes (use two consecutive
arc segments for larger arcs). A bulge specification of 0 is valid and represents
a straight-line segment. Note, however, that using code 8 for a straight-line
segment saves a byte in the shape description.
Special Codes | 479