How to detect autoscale?

[CyGa]

I would like to detect when the user is using the autoscale tool of the graph palette. I tried to do it with the property node "ActPaletteTool" but it never gives me the code of the autoscale tool when it's active. For exemple if the hand tool is active and then you use the autoscale tool, the property node returns the code of the hand tool... Is there any other way to detect the use of that autscale tool??

Thanks.

[DavidJCrawford]

Are you polling the tool property like this?

This is works when I try it on LV8

David

Message Edited by David Crawford on 07-13-2006 10:24 AM

Message Edited by David Crawford on 07-13-2006 10:25 AM

[CyGa]

No, i'm not using a while loop... The structure of my software oblige me to use an event structure which detects when the scale range is changing. Inside that structure, i use the ActPaletteTool property node... And in that case it doesn't work...

[DavidJCrawford]

OK. Can you post a simple VI that demonstrates your issue?

thanks

David

[CyGa]

Here is a simple that i implemented following your VI. The graph is the one used in my application. In the indicator never appears the code 5, which the code for the autoscale function...

[DavidJCrawford]

I don't know for sure but it makes sense to me to avoid property nodes inside events that share the same control or indicator. Intuitively you could either have a race condtion on your hands or you can't use the propery node until the event has been serviced.

I would either create a user event to read the property node after the autoscale event or pass reading the propery node to a consumer loop via a queue.

Just a thought

David

[CyGa]

This is to give you an idea on how the software works...
Thank you for your attention!

[CyGa]

I agree with you concerning the time delay caused by the event structure. But even when i put the property node in the while loop, i cannot see the code of the autosacle (5).

[DavidJCrawford]

You are absolutely right I have just confirmed that tool that should give you 5 does not when you click on it. You get tools 2, 3, 4,6 and 7.

I even tried writing 5 into the property and it doesn't change it either.

Thats weird!

David

[tst]

Looks like a bug, since the number 5 is missing and since the button makes no change to the number.