Aravis.Evaluator¶

Subclasses:: None

Methods¶

Inherited:: GObject.Object (37)
Structs:: GObject.ObjectClass (5)

class	`new` (expression)
	`evaluate_as_double` ()
	`evaluate_as_int64` ()
	`get_constant` (name)
	`get_expression` ()
	`get_sub_expression` (name)
	`set_constant` (name, constant)
	`set_double_variable` (name, v_double)
	`set_expression` (expression)
	`set_int64_variable` (name, v_int64)
	`set_sub_expression` (name, expression)

Virtual Methods¶

Inherited:: GObject.Object (7)

Properties¶

None

Signals¶

Inherited:: GObject.Object (1)

Fields¶

Inherited:: GObject.Object (1)

Class Details¶

class Aravis.Evaluator(**kwargs)¶

Bases:: GObject.Object
Abstract:: No
Structure:: Aravis.EvaluatorClass

classmethod new(expression)¶

Parameters:: expression (str or None) – an evaluator expression
Returns:: a new Aravis.Evaluator object.
Return type:: Aravis.Evaluator

Creates a new Aravis.Evaluator object. The syntax is described in the genicam standard specification.

evaluate_as_double()¶

Raises:: GLib.Error
Return type:: float

evaluate_as_int64()¶

Raises:: GLib.Error
Return type:: int

get_constant(name)¶

Parameters:: name (str) – constant name
Returns:: The formula of the constant corresponding to name, None if not defined.
Return type:: str

New in version 0.6.0.

get_expression()¶

Return type:: str

get_sub_expression(name)¶

Parameters:: name (str) – sub-expression name
Returns:: The formula of the sub-expression corresponding to name, None if not defined.
Return type:: str

New in version 0.6.0.

set_constant(name, constant)¶

Parameters:

name (str) – constant name
constant (str or None) – constant as a string

Assign a string to a constant. If constant == None, the constant previously assigned to name will be removed.

New in version 0.6.0.

set_double_variable(name, v_double)¶

Parameters:

name (str) –
v_double (float) –

set_expression(expression)¶

Parameters:: expression (str) –

set_int64_variable(name, v_int64)¶

Parameters:

name (str) –
v_int64 (int) –

set_sub_expression(name, expression)¶

Parameters:

name (str) – sub-expression name
expression (str or None) – sub-pexression formula

Assign a formula to a sub-expression. If expression == None, the sub-expression previously assigned to name will be removed. A sub-expression may not reference another sub-expression.

New in version 0.6.0.