Hiding components with Python scripting in VC

Python Programming
1

Hello,

I am interesting in using Python to hide and show components in VC. Also moving components etc.

Any assistance will be greatly appreciated.

John

2

Here is a tutorial

https://youtu.be/wn8V3O2xoYw

vcNode.Visible - affects visibility of node and its child nodes

vcNodeVisible - affects visibility of node but not its child nodes

 

3

Thanks Zesty!

Worked a treat and now getting into some Python scripting.

Regards,

John

 

4

I have managed to get a component moving using the following code

def OnRun():

comp = getComponent()
servo = comp.findBehaviour(‘Servo Controller’)
servo.setJointTarget(2,0)
servo.move()

 

I am also able to hide and show it using signals

mypart= app.findComponent(“JPB_PART”)

def OnSignal( signal ):

if signal.Name == “MyPartSignal”:

if signal.Value:
mypart.Visible = True
else:
mypart.Visible = False

 

Could anyone help with setting signal values with python code?

i.e. set signal 201 to true

and how to do a wait until signal 201 equals true

 

I’m also able to call a subprogram to execute on a robot using

robot = app.findComponent(‘GenericRobot’)

rx = robot.findBehaviour(“Executor”)
#disable executor from automatically running its program
rx.IsEnabled = False
rx.callRoutine(rx.Program.Routines[0])

 

I would like to use signals to help control part movement between robot programs.

 

Any assistance is greatly appreciated.

 

Many thanks,

John

 

5

You could use vcExecutor.DigitalInputSignals.input() to get the signal value and verify that in either a condition or event handler

condition(lambda: rx.DigitalInputSignals.input(201) == True)

Likewise, vcExecutor.DigitalOutputSignals.output(201, True) to set the value. This, of course, is assuming port/signal 201 is wired as both an input and output of robot.

6

Set a boolean signal

output = comp.findBehaviour('OutputSignal')
if not output:
  output = comp.createBehaviour(VC_BOOLEANSIGNAL, 'OutputSignal')
output.signal(True) # or False depending on the Value you want to set

Please keep in mind that there is also a possibility to read and write the Value of a signal with “output.Value”, but this won’t trigger anything to recognize that the value has changed e.g. OnSignal if the signal is connected to another components python script.

Waiting for a boolean signal

There are multiple ways how you can wait for a boolean signal.

  • Using "triggerCondition" triggerCondition(lambda: getTrigger() == input and input.Value == True)
  • Using "condition" condition(lambda: input and input.Value == True)
  • Using "while" ``` while input.Value != True: delay(0.1) ```

I’ve attached a sample layout for you where all those methods are shown.

Edit: Unfortunately I have missed the point that you want to set a certain signal of a booleansignalmap, but zesty covered this already.

SampleLayout.vcmx (29.4 KB)

7

Thanks Felix and Zesty,

I managed to get this to do what I wanted to do. I would still like to remove the robot and somehow program the XYZ device and be able to connect the signals to it. This would make it an independent device that I could reuse again.

Please find my model for those interested in doing this in the future.

Regards,

John

Dummy_XYZ_PartMovementControllerBLANK.vcmx (38.1 KB)

8

Something like this perhaps?

Test-IO-Switch.mp4 (1.22 MB)

Test-IO-Switch.vcmx (633 KB)

9

Hi. I dont know how to make Python. So i make it by my way.