famSetExpr

famSetExpr(
o_waveform
t_expr
)
=> t_expr / nil

Description

Sets the specified expression for the waveform.

Arguments

o_waveform	ID of the waveform object for which the expression is to bet set.
t_expr	Expression to be set to the waveform.

Value Returned

t_expr	The expression set for the specified waveform object.
nil	The expression cannot be set for the specified waveform object.

Examples

The following example sets the specified expression for the waveform object, waveform.

waveform=expr(x sin(x) linRg(0 20.0 .5))

; Creates a waveform object representing the waveform sin(x) from x=0.0 to x=20.0. The expression is evaluated at x=0.0, 0.5, 1.0, 1.5, ..., 20.0.

=> srrWave:0x327010b0

famGetExpr(waveform)

; Returns the expression for the specified waveform object, waveform.

=> 

expr(x 

    sin(x) 

    linRg(0 20.0 0.5)

)

famSetExpr(waveform "sine_expression")

; Sets the specified expression "sine_expression" to the waveform object, waveform.

=> "sine_expression"

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