Autodesk AUTOCAD 2006, Command Reference Manual, Page: 190 / 1490

Command line: bedit
➤
bparameter
You can use the BPARAMETER command only in the “Block Editor” on page
139. A parameter defines custom properties for the block reference. After you
add a parameter, you must associate an action with the parameter to make
the block dynamic.
Enter parameter type [“Alignment” on page 166/“Base” on page 167/“Point” on
page 167/“Linear” on page 168/“Polar” on page 170/“XY” on page 172/“Rotation”
on page 174/“Flip” on page 176/“Visibility” on page 178/“Lookup” on page 178]
<last>: Enter a parameter type
Alignment
Adds an alignment parameter to the current dynamic block definition. Because
the alignment parameter affects the entire block, it is not necessary (or possible)
to associate an action with the alignment parameter.
An alignment parameter defines an X and Y location and an angle. An
alignment parameter always applies to the entire block and needs no action
associated with it. An alignment parameter allows the block reference to
automatically rotate around a point to align with other objects in the drawing.
An alignment parameter affects the angle property of the block reference.
Specify base point of alignment or [Name]: Specify a point or enter name
When you specify the base point for the alignment parameter, an X is displayed
in the Block Editor. When the command is completed, an alignment grip is
added at this base point. The block reference automatically rotates about this
point to align with another object in the drawing.
The parameter name is displayed in the Properties palette when you select the
parameter in the Block Editor.
Alignment type = Perpendicular
Specify alignment direction or alignment type [Type] <Type>: Specify an alignment
direction or enter type
The alignment direction specifies the direction of the grip and the angle of
alignment for the block reference.
Enter alignment type [Perpendicular/Tangent] <Perpendicular>: Specify an alignment
type
Perpendicular
Specifies that the dynamic block reference aligns perpendicular to objects
in a drawing.
166 | Chapter 4