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Creating & Using Nodes
72 PT Program Generator (PPG) v5.0
Next Nodes Tab
Next specifies the node to branch to if the math operation passes and where to
branch to if it fails. A math operation will fail only if you attempt to divide a
value by zero or operate on a nonnumeric value.
Figure 49. Math Node: Next Nodes Tab
Operation (Mathematical Function)
At the bottom of the Math Node Properties dialog (refer to Figure 45 on page
69), there is an Operation section, shown in Figure 50. Select from mathemati-
cal functions that follow it.
Figure 50. Math Node: Operation
Call Nodes
Call nodes execute a branch to a subroutine. A subroutine contains nodes that
perform a routine function, such as copying data to a file or verifying data. A
subroutine can be called from multiple locations in the program (with
Call
nodes), eliminating the need for duplication. Creating subroutines and refer-
encing them with
Call nodes optimizes a PPG program, saving both time and
program size.
Figure 51 shows a Call Node Properties dialog.
+ (Addition) Adds the two values.
- (Subtraction) Subtracts operand 2 from operand 1.
* (Multiplication) Multiplies operand 1 by operand 2.
/ (Division) Divides operand 1 by operand 2. Returns the integer result.
% (Modulus) Divides operand 1 by operand 2. Returns the remainder.
2342.book Page 72 Thursday, July 22, 2004 8:35 AM