Götz Becker Posted November 19, 2004 Report Share Posted November 19, 2004 Hi all, i am relativly new to LabView. I am working on an editor for digital data. To display my data i use a Digital Waveform Graph. To do the editing i am using the cursorpos i read out of the property node. But when I try to set the cursorpos either by typing in a numerical value in the cursorpalette or programatically by writing to the property node, I end up with wrong values!?! For example, the graph diplays data from 0 to 10000, I type 487 for X-cursorpos and LabView alters my input to 480 and places the cursor at 480. I tried some values [typed-input -> altered to] 487 -> 480 488 -> 495 500 -> 495 502 -> 495 503 -> 510 518 -> 525 Is this the normal behaviour? Greetings Goetz Becker Quote Link to comment
malef Posted November 19, 2004 Report Share Posted November 19, 2004 Hi all,i am relativly new to LabView. I am working on an editor for digital data. To display my data i use a Digital Waveform Graph. To do the editing i am using the cursorpos i read out of the property node. But when I try to set the cursorpos either by typing in a numerical value in the cursorpalette or programatically by writing to the property node, I end up with wrong values!?! For example, the graph diplays data from 0 to 10000, I type 487 for X-cursorpos and LabView alters my input to 480 and places the cursor at 480. I tried some values [typed-input -> altered to] 487 -> 480 488 -> 495 500 -> 495 502 -> 495 503 -> 510 518 -> 525 Is this the normal behaviour? Greetings Goetz Becker 2707[/snapback] Goetz, probably the cursor is locked to the waveform. Unlock it by right click on the lock and choose free. Manfred Quote Link to comment
Götz Becker Posted November 19, 2004 Author Report Share Posted November 19, 2004 Goetz,probably the cursor is locked to the waveform. Unlock it by right click on the lock and choose free. Manfred 2708[/snapback] Yeah that worked! Thanks! But i dont understand why this makes any difference. Greets Goetz Quote Link to comment
xseadog Posted November 19, 2004 Report Share Posted November 19, 2004 Hi all,i am relativly new to LabView. I am working on an editor for digital data. To display my data i use a Digital Waveform Graph. To do the editing i am using the cursorpos i read out of the property node. But when I try to set the cursorpos either by typing in a numerical value in the cursorpalette or programatically by writing to the property node, I end up with wrong values!?! For example, the graph diplays data from 0 to 10000, I type 487 for X-cursorpos and LabView alters my input to 480 and places the cursor at 480. I tried some values [typed-input -> altered to] 487 -> 480 488 -> 495 500 -> 495 502 -> 495 503 -> 510 518 -> 525 Is this the normal behaviour? Greetings Goetz Becker 2707[/snapback] With regard to yor data: Have you actual 10k samples? If you connect an array indicator, what values do you actual see if you at register(location)ie 487 Why not do your editoring via data handling , then present result via Graph ? What is your plot resolutio n? chow xseadog Quote Link to comment
Götz Becker Posted November 22, 2004 Author Report Share Posted November 22, 2004 With regard to yor data: Have you actual 10k samples? If you connect an array indicator, what values do you actual see if you at register(location)ie 487Why not do your editoring via data handling , then present result via Graph ? What is your plot resolutio n? chow xseadog 2713[/snapback] Yes I tried with full and sparse data, every time the same. Don Quote Link to comment
xseadog Posted November 23, 2004 Report Share Posted November 23, 2004 Yes I tried with full and sparse data, every time the same.Don Quote Link to comment
Götz Becker Posted November 24, 2004 Author Report Share Posted November 24, 2004 Quote Link to comment
guille Posted June 9, 2023 Report Share Posted June 9, 2023 I lost 2 workdays with this exact problem but I have a solution so I'll post it in the only part on the internet this matter is discussed. Even if it's almost 10 years after it was published. PROBLEM: Labview waveform graph would round cursor on X values like Götz described. TROUBLESHOOT: First I checked what xseadog proposes, maybe the data doesn't actualy hold these values I'm trying to access: Right click on the graph, export to excel and check it has your value, it did have it in my case but I couldn't access it on the graph wether I manualy moved the cursor or I typed on the cursor box. SOLUTION: If you want to know the Y value for a certain X your cursor can't acces use the 4 diamond arrows to the left of the cursor box to move through the data, these for some reason can access all of your data points. Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.