T-FLEX Parametric CAD. Fundamentals. 2D Design

Fundamentals. Two-Dimensional Design
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You can use variables to define drawing parameters that are defined in the “ST: Set Model Status”
command, such as scale, paper size, font size, etc. Variables can also be used for defining the system
visibility levels of the elements set in the command “SH: Set Levels”.
Assigning variables to parameters
• When assigning a variable to a numeric parameter, enter the variable name or expression without any
special symbols. Examples: A or A+B
• When assigning a variable to a string parameter, enter the variable name or expression in braces.
Examples: {$NAME} or {A+B}
• When assigning string parameters in braces one can enter either the real variables or textual variables.
If a new variable name was entered when assigning a parameter, the value of this variable must be set after
leaving the menu.
When a variable is introduced, the format of its value representation can be specified along. Use the
following syntax for typing variable values:
{} or {,}
The following example demonstrates use of formatted variable representation.
Today {”%lg”,DAY}, {”%s”,$MONTH}, {YEAR}
Note that the textual variable $MONTH begins with the ‘$’ character, as this is the prefix for all textual
variables.
The format structure, used for the T-FLEX variables, follows the syntax of the input/output formats
in “C” programming language.
Using formats will help you control the appearance of the variable value on screen. For example, formats can
control the number of displayed decimal digits or justification of the displayed value.