Re: [nebula-dev] save as bmp, or tif-fileswt xygraph

Lars Ohmann Thu, 24 Nov 2016 02:42:08 -0800

Hi trig

Thank you very much, you helped me a lot!!!! I used JFilechooser at first, my boss wants some changes in the program,

therefore the components are mixed!

Kind regards

lars

Gesendet: Donnerstag, 24. November 2016 um 00:20 Uhr
Von: "Trig Chen" <[email protected]>
An: "Nebula Dev" <[email protected]>
Betreff: Re: [nebula-dev] save as bmp, or tif-fileswt xygraph

Hi Lars,

In my previous message I posted the implemention of taking snapshot in ToolbarArmedGraph is for you to implement taking snapshot out side of XYGraph which don't have a armed toolbar.

You don't need to create extra buttons as you have created the XYGraph with a armed toolbar which already had a button to take snapshot.

So, your public void addButton(Clickable button) method is redundant.

BTW:

Since your application is based on Eclipse & SWT, you can use org.eclipse.swt.widgets.FileDialog instead of javax.swing.JFileChooser.

The swt file dialog example can be found in http://www.java2s.com/Code/Java/SWT-JFace-Eclipse/DemonstratesFileDialog.htm.

Best regards,

Trig

2016-11-23 18:54 GMT+08:00 Lars Ohmann <[email protected]>:

Hi

I tried to check it out this example you sent me. I have got an additional question:

I tried to implement the method: addButton(snapShotButton); From the google I got:

public void addButton(Clickable button){

  button.setPreferredSize(BUTTON_SIZE, BUTTON_SIZE);

  add(button);

}

So I added it, but I could not implement "add(button)" ; I imported a lot of nebula...

So I send the code snippet concerning this problem. Where is "add(button)" defined ???

Here the code:

import java.io.File;

import java.io.IOException;

import java.nio.file.FileAlreadyExistsException;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.text.SimpleDateFormat;

import java.util.*;

import javax.swing.JFileChooser;

import javax.swing.JOptionPane;

import javax.swing.filechooser.FileFilter;

import javax.swing.filechooser.FileNameExtensionFilter;

import org.eclipse.core.*;

import org.eclipse.core.commands.*;

import org.eclipse.equinox.*;

import org.eclipse.osgi.*;

import org.eclipse.draw2d.*;

import org.eclipse.nebula.visualization.xygraph.*;

import org.eclipse.swt.*;

import org.eclipse.swt.widgets.*;

import org.eclipse.nebula.visualization.xygraph.dataprovider.CircularBufferDataProvider;

import org.eclipse.nebula.visualization.xygraph.figures.*;

import org.eclipse.nebula.visualization.xygraph.figures.Trace.PointStyle;

import org.eclipse.nebula.visualization.xygraph.figures.Trace.TraceType;

import org.eclipse.nebula.visualization.xygraph.util.XYGraphMediaFactory;

import org.eclipse.nebula.visualization.xygraph.figures.ToolbarArmedXYGraph;

import org.eclipse.nebula.visualization.xygraph.figures.XYGraphToolbar;

import org.eclipse.draw2d.Button;

//import org.eclipse.draw2d.ButtonGroup;

import org.eclipse.draw2d.Label;

import org.eclipse.draw2d.Clickable;

public class PlotKomp // wird von Fileread.java aufgerufen

{

       public void addButton(Clickable button)

       {

          button.setPreferredSize(25, 25);

          add(button);                                                                DOES NOT WORK

       }



       public void drawGraph(String pfad)

       {

Display display = Display.getDefault();

          Shell shell = new Shell(display);





             shell.setSize(600, 450);

             shell.open()

             shell.setLocation(100, 100)

             LightweightSystem lwssio2 = new LightweightSystem(shell);

             XYGraph xysio2graph = new XYGraph();





             ToolbarArmedXYGraph toolbarArmedXYGraph = new ToolbarArmedXYGraph(xysio2graph); //23.11



             xysio2graph.setTitle("SiO2");

             //23.11            lwssio2.setContents(xysio2graph);

             lwssio2.setContents(toolbarArmedXYGraph);





             // Configure XYGraph

             xysio2graph.primaryXAxis.setShowMajorGrid(true);

             xysio2graph.primaryYAxis.setShowMajorGrid(true);



             // Bezeichnung der Achsen

             xysio2graph.primaryXAxis.setTitle("XRD-Value [%]");

             xysio2graph.primaryYAxis.setTitle("XRF-Value [%]");



             // Create a trace data provider, which will provide the data to the trace XRD and XRF

             CircularBufferDataProvider tdpsio2 = new CircularBufferDataProvider(false);

             tdpsio2.setBufferSize(200);



             tdpsio2.setCurrentXDataArray(arrsio2xrdend);

             tdpsio2.setCurrentYDataArray(arrsio2rfaend);

          // Create a trace data provider for the line



             Trace tracesio2 = new Trace("SiO2-XY Plot", xysio2graph.primaryXAxis, xysio2graph.primaryYAxis, tdpsio2);

             tracesio2.setTraceType(TraceType.POINT);

             tracesio2.setPointStyle(PointStyle.FILLED_DIAMOND);

             tracesio2.setPointSize(10);

             tracesio2.setAreaAlpha(250);

             tracesio2.setTraceColor(XYGraphMediaFactory.getInstance().getColor(XYGraphMediaFactory.COLOR_BLUE));



             xysio2graph.addTrace(tracesio2);

             CircularBufferDataProvider tdpsio2line = new CircularBufferDataProvider(false);

             tdpsio2line.setBufferSize(200);

             tdpsio2line.setCurrentXDataArray(new double[]{0.0, 50.0, 100.0});

             tdpsio2line.setCurrentYDataArray(new double[]{0.0, 50.0, 100.0});



             Trace tracesio2line = new Trace("SiO2-XY Plot", xysio2graph.primaryXAxis, xysio2graph.primaryYAxis, tdpsio2line);



             tracesio2line.setTraceType(TraceType.SOLID_LINE);

             tracesio2line.setLineWidth(2);

             tracesio2line.setTraceColor(XYGraphMediaFactory.getInstance().getColor(XYGraphMediaFactory.COLOR_BLACK));



             xysio2graph.addTrace(tracesio2line);



Button     snapShotButton = new Button(XYGraphMediaFactory.getInstance().getImage("images/camera.png")); //

        snapShotButton.setToolTip(new Label("Save Snapshot to PNG file"));

      // addButton...

Thanks in advance!
Gesendet: Freitag, 18. November 2016 um 12:07 Uhr
Von: "Trig Chen" <[email protected]>
An: "Nebula Dev" <[email protected]>
Betreff: Re: [nebula-dev] save as bmp, or tif-fileswt xygraph
Hi Lars,

You can create the plot with a toolbar. The toolbar has export button. The sample code is in:
http://git.eclipse.org/c/nebula/org.eclipse.nebula.git/plain/examples/org.eclipse.nebula.snippets/src/org/eclipse/nebula/snippets/visualization/SimpleToolbarArmedXYGraphExample.java
The relatived code in org.eclipse.nebula.visualization.xygraph.figures.XYGraphToolbar.java is: 

	private void addSnapshotButton() {
		Button snapShotButton = new Button(XYGraphMediaFactory.getInstance().getImage("images/camera.png"));
		snapShotButton.setToolTip(new Label("Save Snapshot to PNG file"));
		addButton(snapShotButton);
		snapShotButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent event) {
				// Have valid name, so get image
				ImageLoader loader = new ImageLoader();
				Image image = xyGraph.getImage();
				loader.data = "" ImageData[] { image.getImageData() };
				image.dispose();
				// Prompt for file name
				String path = SingleSourceHelper2.getImageSavePath();
				if (path == null || path.length() <= 0)
					return;
				// Assert *.png at end of file name
				if (!path.toLowerCase().endsWith(".png"))
					path = path + ".png";
				// Save
				loader.save(path, SWT.IMAGE_PNG);
			}
		});
	}
Best regards,

Trig

2016-11-18 17:56 GMT+08:00 Lars Ohmann <[email protected]>:

Hello

below is the code! It is easy, it just gives a simple plot. How can I save this plot (xygraph) as

a bmp or jpg-file on the PC ? I posted the question on several forums, either the answer is too

complicated or the problem is too trivial for the community.

A hint would be very helpful!

thanks!

package org.eclipse.nebula.visualization.xygraph.examples;

/*******************************************************************************
* Copyright (c) 2010 Oak Ridge National Laboratory.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
******************************************************************************/
import org.eclipse.draw2d.LightweightSystem;
import org.eclipse.nebula.visualization.xygraph.dataprovider.CircularBufferDataProvider;
import org.eclipse.nebula.visualization.xygraph.figures.Ixygraph;
import org.eclipse.nebula.visualization.xygraph.figures.Trace;
import org.eclipse.nebula.visualization.xygraph.figures.xygraph;
import org.eclipse.nebula.visualization.xygraph.figures.Trace.PointStyle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

/**
* A very simple example.
*
* @author Xihui Chen
*
*/
public class SimpleExample {
public static void main(String[] args) {
final Shell shell = new Shell();
shell.setSize(300, 250);
shell.open();

// use LightweightSystem to create the bridge between SWT and draw2D
final LightweightSystem lws = new LightweightSystem(shell);

// create a new XY Graph.
Ixygraph xygraph = new xygraph();
xygraph.setTitle("Simple Example");
// set it as the content of LightwightSystem
lws.setContents(xygraph);

// create a trace data provider, which will provide the data to the
// trace.
CircularBufferDataProvider traceDataProvider = new CircularBufferDataProvider(false);
traceDataProvider.setBufferSize(100);
traceDataProvider.setCurrentXDataArray(new double[] { 10, 23, 34, 45, 56, 78, 88, 99 });
traceDataProvider.setCurrentYDataArray(new double[] { 11, 44, 55, 45, 88, 98, 52, 23 });

// create the trace
Trace trace = new Trace("Trace1-XY Plot", xygraph.getPrimaryXAxis(), xygraph.getPrimaryYAxis(), traceDataProvider);

// set trace property
trace.setPointStyle(PointStyle.XCROSS);

// add the trace to xygraph
xygraph.addTrace(trace);

Display display = Display.getDefault();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}

}
}

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Re: [nebula-dev] save as bmp, or tif-fileswt xygraph

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