T-FLEX Parametric CAD. Fundamentals. 2D Design

GLOBAL VARIABLES
Global Variables
A global variable is a named value of one of the two types: text (string) or real. Global variables are
accessible for editing in the variable editor or via the special functions across all currently open documents.
The list of global variables and their values are saved automatically upon exiting the application (in the
registry) and are restored upon launching the application.
Global variables are created by the command "SG: Create/Edit Global Variables". The command is
called by one of the following means:
Keyboard Textual Menu Icon
“Parameters|Global Variables…”
Upon calling the command, the dialog box is displayed on the
screen where you can create new global variables or delete and
edit the existing ones. To create a new variable, press the graphic
button [New]. In the coming up dialog box defining the name,
value and type of the variable being created.
Upon the confirmation, the entered data will be displayed in the
command dialog box.
Created global variables will be stored until you delete those or
update your system installation (the global variables are stored in
the system registry). A global variable can be accessed from any
document managed by one user.
You can retrieve the value of a global variable in any dialog that
allows use of variables, by the following special functions:
getg (“Name”,N) – gets the value of a real global variable;
tgetg (“Name”,N) – gets the value of a text global variable.
The first argument defines the name of the created global variable.
The expression after the comma defines the value to be used in the
case if the global variable is not found.
Exercise: create a new variable of a certain type (real or text) in
the variable editor within a drawing, and then make a function call
for accessing a global variable of this type. If the global variable
with the specified name (“L”) exists in your user registry, then its
value will be displayed in the “Value” column. If the specified
global variable is not found then the second function argument
will be displayed in the “Value” column.
Besides that, a global variable can be created, or its value modified, in the common variable editor or in any
dialog that allows use of variables. The following functions are provided for this purpose:
setg (“Name”,N) – sets the value of a real global variable;
tsetg (“Name”,N) – sets the value of a text global variable.
521