Create button to clear/reset graph's displayed data
Hello,
I'm new here and working with labview. I've searched the forum but didn't found a answer that could help me (or at least I think thank)
I'm working on a project to acquire process an ECG signal with a DAQ. In the front panel, I'm trying to display 2 graphs, one showing part of the data in real time and the other showing all the data acquired until that momment. I wanted to add a button to this second graph that, when the user wanted, cleared the data shown in the graph but immediatly continued to show the data.
(trying to make myself clearer)
"show all data acquired --> press button X --> cleans graph display --> show all data acquired"
if anyone could help I would be very thankfull!
Thank you very much,
FM
Solved!
Go to Solution.
Hi FM,
when you use a chart you have to clear it's history (using a property node).
When you use a graph instead you have to clear the array that builds the plot(s)...
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome
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"Greg McKaskle" wrote in message
news:xEmJc.43762$[email protected]..
> > I went into the function pallette-->signal manipulation-->align and
> > resample
> >
> > and found something that may be useful, but I'm not sure how to use
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> > the VI seetting that you were referring t
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> >
>
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once.
>
> Greg McKaskle
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// Thumb populater method. It adds each thumb-button to the scroller panel
thumbs.removeAll(); //Need to remove old directory's buttons
File selectedDir = new File(chosenDir);
FileNameExtensionFilter filter = new FileNameExtensionFilter("JPG/GIF/BMP/PNG Images", "bmp", "jpg", "jpeg", "gif", "png");
File [] dirEntries = selectedDir.listFiles();
for (File tempFile : dirEntries) {
if (filter.accept(tempFile) && tempFile.isFile()) { //That way I only get certain types
JButton howToNameMultipleButtons = new JButton();
howToNameMultipleButtons.setActionCommand(tempFile.getAbsolutePath());
// System.out.println(tempFile.getAbsolutePath());
// System.out.println(howToNameMultipleButtons.getActionCommand());
howToNameMultipleButtons.setIcon(new ScaledIcon(tempFile.getAbsolutePath(), SIZE));
howToNameMultipleButtons.addActionListener(thumbPicksNose);
thumbs.add(howToNameMultipleButtons);
this.setVisible(true); //Down here so first run through program opens Dialog before showing
public class dirPickListener implements ActionListener {
public void actionPerformed (ActionEvent ae) {
thumbsUp(pickDir()); //Opens Dir selection dialog and feeds the thumbnail populater
public class thumbSelectedListener implements ActionListener {
public void actionPerformed (ActionEvent ae) {
String thumbPicked = ae.getActionCommand(); //Should return path string of thumbButton clicked
// System.out.println(ae.getActionCommand()); //TSing step; to see if this bit even fires off.
bigView.setImage(thumbPicked);
bigView.setToolTipText(thumbPicked);
// bigView.setBackground(Color.GREEN);
}Ah! I got some of it figured out at least...
Setting the preferred size parameter has caused the scroll bars to display! :) Thanks for the hint on that.
But I get an error when I try and use the scrollbar policy settings. Here are the results:
Exception in thread "main" java.lang.IllegalArgumentException: invalid verticalScrollBarPolicy
at javax.swing.JScrollPane.setVerticalScrollBarPolicy(Unknown Source)
at javax.swing.JScrollPane.<init>(Unknown Source)
at PhotoGUI.<init>(PhotoGUI.java:70)
at PhotoBrowser.main(PhotoBrowser.java:15)And the code I used:
scroller = new JScrollPane(thumbs,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS,
ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER); //Setting the scroll bar pane to view the thumbnail panel
Edited by: Mole_Hunter on Feb 1, 2010 9:57 AM
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