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Creating New Nodes
User’s Guide 53
2. To position the subroutine, move the pointer to it, hold down the left
mouse button, and drag the subroutine with the mouse. When the
subroutine is positioned where you want it, release the mouse button.
Since subroutines aren’t Linked to other objects, their locations are
optional. Normally, they are placed to one side of the frame.
3. To give the subroutine a more useful name, select
Edit > Properties
from the menubar or select
Properties from the pop-up menu (point
and click the right mouse button). This opens the
Subroutine Proper-
ties
dialog box (Figure 30 on page 51). Enter the new name in the name
field, and select
OK.
To reference a subroutine from within a frame, use a
Call node (refer to Call
Nodes on page 72). When the subroutine has been executed, control continues
with the next node after the
Call node.
Creating New Nodes
Each Frame and Subroutine of a program flow chart contains its own set of
nodes, in a child (sub-level) flow chart. Every
Frame is assigned at least one
node automatically: a
Start node, which shows the name of the Frame. If the
Frame contains Links to other frames, an Exit node for each Link is also cre-
ated automatically. A subroutine has a
Start node and a Return node, which
are created automatically by PPG. You add and Link your own nodes to define
details for the Frame.
To get to the
Operation level of a frame, double-click on it. You can also move
to it with the mouse and then select
View > ShowFrame/Subroutine Nodes
from the menubar.
To create a node, complete the following steps:
1. Select the type of node you want to create from the
Create menu. A
new node will appear in the lower right corner of the frame window.
The new node is assigned a default name.
If you're creating several subroutines, you can create a single subroutines as
described above. Then select the subroutine by clicking on it with the left mouse but-
ton. Copy the subroutine by selecting
Edit > Copy from the menu. Then select Edit >
Paste
as many times as necessary to create the number of copies you need.
2342.book Page 53 Thursday, July 22, 2004 8:35 AM