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■ Reference Parameters
■ User Parameters
■ Attributes
You can only add user parameters to the table. When you delete any item
from the table, the item is automatically deleted from the block definition.
Create a Dimensional Variable
To create a dimensional variable, you apply a dimensional constraint to an
object in the Block Editor. Dimensional variables are displayed under the
Dimensional Constraint Parameters group header in the Parameters Manager
palette.
User variables are custom variables that create and drive object relationships.
These variables can contain constants, or equations.
Click the New User Parameter icon on the Parameters Manager palette to
create a user variable. Alternatively, double-click an empty cell to create a
user-defined variable.
User variables have the following characteristics:
■ Default values are: Name = user1, Expression = 1, and value = 1.00.
■ Name should be alphanumeric.
■ Expression values should be within the range of -1e100 and 1e100.
Edit a Dimensional Variable
You can edit the dimensional variable name and expression. To do so:
■ Double-click the name or expression box.
■ Select the row and press F2. Press the Tab key to edit the contiguous
columns.
You cannot edit the Value column.
When you rename a dimensional variable, all instances of the variable are
updated in the drawing and in the Parameters Manager palette.
Invalid expressions are displayed in red text.
1410 | Chapter 16 P Commands