VisionEgg.FlowControl.ExecStringController

Package VisionEgg :: Module FlowControl :: Class ExecStringController

Class ExecStringController

object --+    
         |    
Controller --+
             |
            ExecStringController

Known Subclasses:: PyroExecStringController

Set parameters using potentially complex Python string.

You can execute arbitrarily complex Python code with this
controller.  The return value must be contained within the
variable "x".  In other words, this string must assign the
variable x, so setting the string to "x=1.0" would set the
parameter under control to 1.0.

To increase speed, the string is compiled to Python's
bytecode format.

The string can make use of temporal variables, which are made
available depending on the controller's temporal_variables
attribute. Note that only the absolute temporal variables are
available when the go loop is not running.

flag(s) present    variable  description
-----------------  --------  ----------------------------------
TIME_SEC_ABSOLUTE  t_abs     seconds, continuously increasing
TIME_SEC_SINCE_GO  t         seconds, reset to 0.0 each go loop
FRAMES_ABSOLUTE    f_abs     frames, continuously increasing
FRAMES_SINCE_GO    f         frames, reset to 0 each go loop

Method Summary
	`__init__(self, during_go_exec_string, between_go_exec_string, restricted_namespace, **kw)`
	`between_go_eval(self)` Called by Presentation.
	`during_go_eval(self)` Called by Presentation.
	`get_between_go_exec_string(self)`
	`get_during_go_exec_string(self)`
	`set_between_go_exec_string(self, between_go_exec_string)`
	`set_during_go_exec_string(self, during_go_exec_string)`
Inherited from Controller
	`evaluate_now(self)` Call this after updating the values of a controller if it's not evaluated EVERY_FRAME.
	`returns_type(self)` Called by Presentation.
	`set_eval_frequency(self, eval_frequency)`
Inherited from object
	`__delattr__(...)` x.__delattr__('name') <==> del x.name...
	`__getattribute__(...)` x.__getattribute__('name') <==> x.name...
	`__hash__(x)` x.__hash__() <==> hash(x)...
	`__reduce__(...)` helper for pickle...
	`__reduce_ex__(...)` helper for pickle...
	`__repr__(x)` x.__repr__() <==> repr(x)...
	`__setattr__(...)` x.__setattr__('name', value) <==> x.name = value...
	`__str__(x)` x.__str__() <==> str(x)...
Inherited from type
	`__new__(T, S, ...)` T.__new__(S, ...) -> a new object with type S, a subtype of T...

Class Variable Summary
Inherited from Controller
`int`	`EVERY_FRAME` = 1
`dict`	`flag_dictionary` = `{'EVERY_FRAME': 1, 'NOT_BETWEEN_GO': 1...`
`int`	`FRAMES_ABSOLUTE` = 4
`int`	`FRAMES_SINCE_GO` = 8
`int`	`NEVER` = 0
`int`	`NOT_BETWEEN_GO` = 16
`int`	`NOT_DURING_GO` = 8
`int`	`ONCE` = 4
`int`	`TIME_INDEPENDENT` = 0
`int`	`TIME_SEC_ABSOLUTE` = 1
`int`	`TIME_SEC_SINCE_GO` = 2
`int`	`TRANSITIONS` = 2

Method Details

between_go_eval(self)

Called by Presentation. Overrides method in Controller base class.

Overrides:: VisionEgg.FlowControl.Controller.between_go_eval

during_go_eval(self)

Called by Presentation. Overrides method in Controller base class.

Overrides:: VisionEgg.FlowControl.Controller.during_go_eval

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