Creating and using variables in LabView

Hello. Apologies in advance for what probably is a trivial task, but I'm having problems grasping the concept of variables in the LabView environment.
I'm using Motion to track the steps that a motor has traversed. I have an inkjet that I want to apply a quick burst only once for a pixel (which I defined the size). The problem is that the motor has to travel at such a slow speed that the inkjet is over the pixel for a while. With my current code, it will keep firing while over the pixel. So I want to store the last pixel number that the printer fired on so I can perform a compare to ensure that the inkjet will only fire once the current pixel is greater than the last-fired pixel.
In a regular text-based coding environment, it's as easy as assigning a variable to store the pixel that the inkjet fired on, then constantly compare the current pixel location to that variable to know if it's still over the same pixel. I'm a bit of a loss trying to accomplish the same task using the graphical coding of LabView.
How do I extract this value and store it for later comparison?
Thank you and sorry again for a dumb question.

I assume that you are doing this firing of inkjet at a particular pixel, using a loop ( more appropriately, while loop)
One way to achieve this would be to use shift registers and case structure
Insert a shift register for that loop
initialize a pixel value (numeric) to that shift register
On every iteration, perform comparison for 'greater than' with current pixel value/position to value/position stored in shift register
If the result of this comparison is true, use a case structur. In true case of case structure , fire your inkjet at that particular pixel and update your shift register to replace and store the current value
If the result of comparison was false, do not perform any operation, just pass the shift register through false case without any modification
A labVIEW code built on these lines would work fine for your application
Showing a code snippet would have been a simpler and effective way to explain this. but currently no LabVIEW installed on my system

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Robinson, Richard a écrit:
I'm relatively new to forte and I'd like to know how can you handle utility
type classes that you want to use through out your application? Ideally
what I want is a static class with static methods.
Let's say that I have a StringUtil class that has a bunch of methods for
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physically reside at the server end and at the client end. (Actually, I
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static class).
Any clues on how to solve this problem would be appreciated.
Also, what is the url at Sage-it that has a summary of all emails that have
been posted to [email protected]? Perhaps this question has been
answered previously.
Thanks in advance
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
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'unsubscribe forte-users' as the body of the message.
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Hi Richard,
Your question about "utility classes" brings up a number of issues, all of
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There is no such thing as a static method (method that is associated with a
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TOOL, nor is there such thing as a global method (method not associated
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result, num : double;
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tmpDoubleData : DoubleData = new;
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result = Math::Sqrt(num);
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// get initial value for num....
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The next issue you raise is where the object resides. As long as you do
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Some developers new to Forte will try to get around the lack of global
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Summary:
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* Unless you anchor the object, the instance will reside where you
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* To patch over the lack of static methods in TOOL, simply allocate an
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Feel free to email me if you have more questions on this.
At the bottom of each message that goes through the mailing list server,
the address for the list archive is printed:
http://pinehurst.sageit.com/listarchive/.
Good Luck,
CSB
-----Original Message-----
From: Robinson, Richard
Sent: Tuesday, March 02, 1999 5:44 PM
To: '[email protected]'
Subject: How do you create and use "common" type classes?
I'm relatively new to forte and I'd like to know how can you handle utility
type classes that you want to use through out your application? Ideally
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Thanks in advance

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