Re: Freehand selections

Posted by Sabine De Vreese on Aug 22, 2005; 10:26pm
URL: http://imagej.273.s1.nabble.com/Freehand-selections-tp3704990p3704992.html

Would you mind sharing the code of FreehandRoiBis? I'm still having
difficulties ...
(e.g. for roi.drawPixels(myImageProcessor);  I'm getting a compiler error
(drawPixels() in ij.gui.Roi cannot be applied to
(ij.process.ImageProcessor)). Thanks a lot!

>
>Finally,
>
>I've defined a FreehandRoiBis classe inherited from the FreehandRoi one
>where the grow() method is public and not protected.
>And here is my code:
>
>import java.awt.*;
>import java.awt.event.*;
>import javax.swing.*;
>
>public class JFrame_TestImageJROI extends javax.swing.JFrame
>                 implements MouseListener, MouseMotionListener {
>         private ij.IJ myImageJ;
>         private ij.ImagePlus myImagePlus;
>         private ij.process.ImageProcessor myImageProcessor;
>         private ij.gui.ImageCanvas myImageCanvas;
>
>         private FreehandRoiBis roi;
>
>         int xOrigROI;
>         int yOrigROI;
>
>         public static void main(String[] args) {
>                 JFrame_TestImageJROI inst = new JFrame_TestImageJROI();
>                 inst.setVisible(true);
>         }
>
>         public JFrame_TestImageJROI() {
>                 super();
>                 initGUI();
>         }
>
>         private void initGUI() {
>                 try {
>                        
>setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
>                         this.setFocusable(false);
>                         pack();
>                         setSize(400, 300);
>                         myImageJ = new ij.IJ();
>                         myImageJ.open("image.bmp");
>                         myImagePlus = myImageJ.getImage();
>                         myImageProcessor = myImagePlus.getProcessor();
>                         myImageProcessor.setColor(Color.yellow);
>                         myImageProcessor.setLineWidth(2);
>
>                         myImageCanvas = new
>ij.gui.ImageCanvas(myImagePlus);
>                         this.add(myImageCanvas);
>
>                         myImageCanvas.addMouseListener(this);
>                         myImageCanvas.addMouseMotionListener(this);
>
>                 } catch (Exception e) {
>                         e.printStackTrace();
>                 }
>         }
>         public void mousePressed(MouseEvent evt) {
>                 xOrigROI = evt.getX();
>                 yOrigROI = evt.getY();
>                 roi = new FreehandRoiBis(evt.getX(), evt.getY(),
>myImagePlus);
>                 myImagePlus.setRoi(roi);
>                 roi.drawPixels(myImageProcessor);
>                 myImagePlus.setProcessor(null,myImageProcessor);
>                 myImageCanvas.repaint();
>         }
>         public void mouseDragged(MouseEvent evt) {
>                 roi.grow(evt.getX(), evt.getY());
>                 roi.drawPixels(myImageProcessor);
>                 myImagePlus.setProcessor(null,myImageProcessor);
>                 myImageCanvas.repaint();
>         }
>         public void mouseReleased(MouseEvent evt) {
>                 roi.grow(xOrigROI,yOrigROI);
>                 roi.drawPixels(myImageProcessor);
>                 myImagePlus.setProcessor(null,myImageProcessor);
>                 myImageCanvas.repaint();
>         }
>         public void mouseClicked(MouseEvent evt) {}
>         public void mouseExited(MouseEvent evt) {}
>         public void mouseEntered(MouseEvent evt) {}
>         public void mouseMoved(MouseEvent evt) {}
>}
>
>Thanks everybody and especially Volker
>
>
>>Hello,
>>
>>Does anybody know the name of the macro or plugin or function called when
>>the mouse is pressed on the "Freehand selection" button in the ImageJ
>>toolbar ???
>>
>>Please HELP    ....
>>
>>Thanks
>>
>>Blandine

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