Place elliptical ROI with mouse click

[aweitz]

Hi,

I'd like to modify the elliptical ROI tool.  Currently, the tool only places ROIs with click and drag (to specify ellipse size).  A click without a drag does nothing.  Instead, I'd like the click (without a drag) to place an ROI of set size (12x12) at the area of the mouse click.  The click and drag behavior should remain unmodified.

Can anyone tell me where I can look in the code to make this modification?

Thanks!
Andrew

[jmutterer]

Andrew,
install the following tool macro :

macro 'myTool Tool - C000O4488D88' {
  getCursorLoc(x, y, z, modifiers);
  left=16;
  while ((modifiers&left)!=0) {
    getCursorLoc(x, y, z, modifiers);
    makeOval(x-6,y-6,12,12);
    wait(10);
  }
}


Jerome

On Tue, Jun 23, 2009 at 4:30 AM, aweitz <[hidden email]> wrote:

> Hi,
>
> I'd like to modify the elliptical ROI tool.  Currently, the tool only
> places
> ROIs with click and drag (to specify ellipse size).  A click without a drag
> does nothing.  Instead, I'd like the click (without a drag) to place an ROI
> of set size (12x12) at the area of the mouse click.  The click and drag
> behavior should remain unmodified.
>
> Can anyone tell me where I can look in the code to make this modification?
>
> Thanks!
> Andrew
> --
> View this message in context:
> http://n2.nabble.com/Place-elliptical-ROI-with-mouse-click-tp3139919p3139919.html
> Sent from the ImageJ mailing list archive at Nabble.com.
>

[aweitz]

Hi Jerome,

Thank you for the suggestion.  It works well for placing the 12x12 ROIs, but it doesn't allow me to click and drag to change size...

Andrew

jerome mutterer-2 wrote

Andrew,
install the following tool macro :

macro 'myTool Tool - C000O4488D88' {
  getCursorLoc(x, y, z, modifiers);
  left=16;
  while ((modifiers&left)!=0) {
    getCursorLoc(x, y, z, modifiers);
    makeOval(x-6,y-6,12,12);
    wait(10);
  }
}


Jerome

On Tue, Jun 23, 2009 at 4:30 AM, aweitz <[e-mail]> wrote:

> Hi,
>
> I'd like to modify the elliptical ROI tool.  Currently, the tool only
> places
> ROIs with click and drag (to specify ellipse size).  A click without a drag
> does nothing.  Instead, I'd like the click (without a drag) to place an ROI
> of set size (12x12) at the area of the mouse click.  The click and drag
> behavior should remain unmodified.
>
> Can anyone tell me where I can look in the code to make this modification?
>
> Thanks!
> Andrew
> --
> View this message in context:
> http://n2.nabble.com/Place-elliptical-ROI-with-mouse-click-tp3139919p3139919.html
> Sent from the ImageJ mailing list archive at Nabble.com.
>

[Aaron Schiffman]

aweitz wrote

Hi Jerome,

Thank you for the suggestion.  It works well for placing the 12x12 ROIs, but it doesn't allow me to click and drag to change size...

Andrew

Hi Andrew,

I suggest something like this for now:

macro "increase size[1]"{
run("Enlarge...", "enlarge=5");
roiManager("Update");
}

macro "decrease size[2]"{
run("Enlarge...", "enlarge=-5");
roiManager("Update");
}

With these macros installed, you would press "1" to increase the radius of your currently selected ROI by 5, and "2" to decrease the radius of your currently selected ROI by 5. Try this with different numbers if you like.

Aaron

[dpoburko]

aweitz wrote:

> Hi,
>
> I'd like to modify the elliptical ROI tool.  Currently, the tool only places
> ROIs with click and drag (to specify ellipse size).  A click without a drag
> does nothing.  Instead, I'd like the click (without a drag) to place an ROI
> of set size (12x12) at the area of the mouse click.  The click and drag
> behavior should remain unmodified.
>
> Can anyone tell me where I can look in the code to make this modification?
>
> Thanks!
> Andrew
>  

You could try the Time Series Analyzer plugin. (
http://rsb.info.nih.gov/ij/plugins/time-series.html) It will provide a
GUI to let you select a give ROI size then create ROIs with a single
click. You can resize ROIs by selecting a given ROI and dragging to the
new size or position, then clicking on Update in the ROI manager.

Hope that helps,
Damon

--

Damon Poburko, PhD
Postdoctoral Research Fellow
Stanford University School of Medicine
Dept. of Molecular & Cellular Physiology
279 Campus Dr., Beckman B103, Stanford, CA 94305
Ph: 650 725 7564, fax: [phone]

[aweitz]

Hi everyone,

Thanks so much for all the suggestions.  Unfortunately, I was looking for some pretty specific behavior.  I needed a fast way to place and resize ROIs, since each one of my images has about 100 of them.  I was able to modify some of the source code and create a plugin to give me the behavior I desired...

I ended up implementing a new class called SomaRoi that extends OvalRoi:
public class SomaRoi extends OvalRoi {

        protected int region_size;

        public SomaRoi (int x, int y, int diameter, ImagePlus imp) {

                super(x, y, imp);
                region_size = diameter;
        }

        protected void handleMouseDrag(int sx, int sy, int flags) {

                if (state == CONSTRUCTING)
                        flags = flags|Event.CTRL_MASK;

                super.handleMouseDrag(sx, sy, flags);
        }

        public void draw(Graphics g) {

                if (width == 0 && height == 0) {
                        width = region_size;
                        height = region_size;
                        x = x - width/2;
                        y = y - height/2;
                        startX = x;
                        startY = y;
                        oldWidth = width;
                        oldHeight = height;
                        oldX = x;
                        oldY = y;
                }
                else if (state == CONSTRUCTING) {
                        x = x + width/2;
                        y = y + height/2;
                        oldX = x;
                        oldY = y;
                }

                state = CONSTRUCTING;
                super.draw(g);
        }
}



Then I added a function to ImagePlus that creates soma ROIs:
        public void createNewSomaRoi(int sx, int sy, int diameter) {
                killRoi();
                roi = new SomaRoi(sx, sy, diameter, this);
        }


Finally, I created a plugin that calls createNewSomaRoi() when the user clicks on the image:
public class Soma_Roi_Tool implements PlugInFilter {

        protected static int region_size;

        public int setup(String arg, ImagePlus imp) {
                this.region_size = 16;
                return DOES_ALL;
        }

        public void run(ImageProcessor ip) {
                if (IJ.versionLessThan("1.37c")) return;
                showSomaDialog();
                String macro =
                        "macro 'Soma ROI Tool-C00cO11cc' {\n" +
                        "  getCursorLoc(x, y, z, flags);\n" +
                        "  call('Soma_Roi_Tool.mousePressed', x, y, z, flags);\n"+
                        "}";
                new MacroInstaller().install(macro);
  }

        public static void mousePressed(String xs, String ys, String zs, String flags) {
                int x = Integer.parseInt(xs);
                int y = Integer.parseInt(ys);
                ImagePlus img = WindowManager.getCurrentImage();
                if (img!=null)
                        img.createNewSomaRoi(x, y, region_size);
        }

        public static void showSomaDialog() {
                GenericDialog gd = new GenericDialog("Soma ROI Tool");
                gd.addNumericField("Diameter:", region_size, 0, 2, "pixels");
                gd.showDialog();
                if (gd.wasCanceled()) return;
                region_size = (int)gd.getNextNumber();
        }
}


This gave me the exact behavior I was looking for.  The only thing I'm not happy about is having to modify the ImagePlus class.  If anyone has an idea for doing this without modifying ImagePlus, or if anyone can suggest a more elegant way of implementing this, I'd be happy to listen.

Thanks again!
Andrew

dpoburko wrote

aweitz wrote:
> Hi,
>
> I'd like to modify the elliptical ROI tool.  Currently, the tool only places
> ROIs with click and drag (to specify ellipse size).  A click without a drag
> does nothing.  Instead, I'd like the click (without a drag) to place an ROI
> of set size (12x12) at the area of the mouse click.  The click and drag
> behavior should remain unmodified.
>
> Can anyone tell me where I can look in the code to make this modification?
>
> Thanks!
> Andrew
>  
You could try the Time Series Analyzer plugin. (
http://rsb.info.nih.gov/ij/plugins/time-series.html) It will provide a
GUI to let you select a give ROI size then create ROIs with a single
click. You can resize ROIs by selecting a given ROI and dragging to the
new size or position, then clicking on Update in the ROI manager.

Hope that helps,
Damon

--

Damon Poburko, PhD
Postdoctoral Research Fellow
Stanford University School of Medicine
Dept. of Molecular & Cellular Physiology
279 Campus Dr., Beckman B103, Stanford, CA 94305
Ph: 650 725 7564, fax: [phone]

[Michael Schmid]

Hi Andrew,

why not do it all with a macro tool?

Roughly something like this:

macro 'Soma ROI Tool-C00cO11cc' {
   r = 10;  //radius for new roi
   left=16; //left-click flag
   getCursorLoc(x0, y0, z, flags);
   do {
     getCursorLoc(x, y, z, flags);
     moved = (x!=x0 || y!=y0); //maybe 1 or 2 pixel tolerance?
     if (moved) {
       getSelectionBounds(x, y, width, height);
       // depending on where the click was, resize, drag, or do nothing
       // here you can also constrain resizing, e.g. circular, min  
size, etc.
     }
   } while ((flags&left)>0)
   if (!moved)
     makeOval(x-r, y-r, 2*r+1, 2*r+1);
   //if desired, add to the roi manager (on modification, delete the  
old one first)
}

Michael
________________________________________________________________

On 23 Jun 2009, at 22:27, aweitz wrote:

> Hi everyone,
>
> Thanks so much for all the suggestions.  Unfortunately, I was  
> looking for
> some pretty specific behavior.  I needed a fast way to place and  
> resize
> ROIs, since each one of my images has about 100 of them.  I was  
> able to
> modify some of the source code and create a plugin to give me the  
> behavior I
> desired...
>
> I ended up implementing a new class called SomaRoi that extends  
> OvalRoi:
> public class SomaRoi extends OvalRoi {
>
> protected int region_size;
>
> public SomaRoi (int x, int y, int diameter, ImagePlus imp) {
>
> super(x, y, imp);
> region_size = diameter;
> }
>
> protected void handleMouseDrag(int sx, int sy, int flags) {
>
> if (state == CONSTRUCTING)
> flags = flags|Event.CTRL_MASK;
>
> super.handleMouseDrag(sx, sy, flags);
> }
>
> public void draw(Graphics g) {
>
> if (width == 0 && height == 0) {
> width = region_size;
> height = region_size;
> x = x - width/2;
> y = y - height/2;
> startX = x;
> startY = y;
> oldWidth = width;
> oldHeight = height;
> oldX = x;
> oldY = y;
> }
> else if (state == CONSTRUCTING) {
> x = x + width/2;
> y = y + height/2;
> oldX = x;
> oldY = y;
> }
>
> state = CONSTRUCTING;
> super.draw(g);
> }
> }
>
>
>
> Then I added a function to ImagePlus that creates soma ROIs:
> public void createNewSomaRoi(int sx, int sy, int diameter) {
> killRoi();
> roi = new SomaRoi(sx, sy, diameter, this);
> }
>
>
> Finally, I created a plugin that calls createNewSomaRoi() when the  
> user
> clicks on the image:
> public class Soma_Roi_Tool implements PlugInFilter {
>
> protected static int region_size;
>
> public int setup(String arg, ImagePlus imp) {
> this.region_size = 16;
> return DOES_ALL;
> }
>
> public void run(ImageProcessor ip) {
> if (IJ.versionLessThan("1.37c")) return;
> showSomaDialog();
> String macro =
> "macro 'Soma ROI Tool-C00cO11cc' {\n" +
> "  getCursorLoc(x, y, z, flags);\n" +
> "  call('Soma_Roi_Tool.mousePressed', x, y, z, flags);\n"+
> "}";
> new MacroInstaller().install(macro);
>   }
>
> public static void mousePressed(String xs, String ys, String zs,  
> String
> flags) {
> int x = Integer.parseInt(xs);
> int y = Integer.parseInt(ys);
> ImagePlus img = WindowManager.getCurrentImage();
> if (img!=null)
> img.createNewSomaRoi(x, y, region_size);
> }
>
> public static void showSomaDialog() {
> GenericDialog gd = new GenericDialog("Soma ROI Tool");
> gd.addNumericField("Diameter:", region_size, 0, 2, "pixels");
> gd.showDialog();
> if (gd.wasCanceled()) return;
> region_size = (int)gd.getNextNumber();
> }
> }
>
>
> This gave me the exact behavior I was looking for.  The only thing  
> I'm not
> happy about is having to modify the ImagePlus class.  If anyone has  
> an idea
> for doing this without modifying ImagePlus, or if anyone can  
> suggest a more
> elegant way of implementing this, I'd be happy to listen.
>
> Thanks again!
> Andrew
>
>
>
> dpoburko wrote:
>>
>> aweitz wrote:
>>> Hi,
>>>
>>> I'd like to modify the elliptical ROI tool.  Currently, the tool  
>>> only
>>> places
>>> ROIs with click and drag (to specify ellipse size).  A click  
>>> without a
>>> drag
>>> does nothing.  Instead, I'd like the click (without a drag) to  
>>> place an
>>> ROI
>>> of set size (12x12) at the area of the mouse click.  The click  
>>> and drag
>>> behavior should remain unmodified.
>>>
>>> Can anyone tell me where I can look in the code to make this
>>> modification?
>>>
>>> Thanks!
>>> Andrew
>>>
>> You could try the Time Series Analyzer plugin. (
>> http://rsb.info.nih.gov/ij/plugins/time-series.html) It will  
>> provide a
>> GUI to let you select a give ROI size then create ROIs with a single
>> click. You can resize ROIs by selecting a given ROI and dragging  
>> to the
>> new size or position, then clicking on Update in the ROI manager.
>>
>> Hope that helps,
>> Damon
>>
>> --
>>
>> Damon Poburko, PhD
>> Postdoctoral Research Fellow
>> Stanford University School of Medicine
>> Dept. of Molecular & Cellular Physiology
>> 279 Campus Dr., Beckman B103, Stanford, CA 94305
>> Ph: 650 725 7564, fax: [phone]
>>
>>
>
> --
> View this message in context: http://n2.nabble.com/Place-elliptical- 
> ROI-with-mouse-click-tp3139919p3144862.html
> Sent from the ImageJ mailing list archive at Nabble.com.

[aweitz]

Hi Michael,

Awesome tip!  This is only my second week using ImageJ, and I didn't realize how powerful macros could be.  I was able to make a few modifications to your macro in order to get the tool to behave exactly like I wanted.  This macro can now be used to replace all that source code I modified!

Here's what I settled on for the macro:

macro 'Soma ROI Tool-C00cO11cc' {
        diameter = parseInt(call("ij.Prefs.get", "SomaRoiTool.diameter", 16));
        r = diameter / 2;
        left=16; //left-click flag
        getCursorLoc(x0, y0, z, flags);
        makeOval(x0-r, y0-r, 2*r, 2*r);
        prevX = -1;
        prevY = -1;
        setOption("Show All", true)
        do {
                getCursorLoc(x, y, z, flags);
                moved = (x!=x0 || y!=y0); //maybe 1 or 2 pixel tolerance?
                if (moved && (prevX != x || prevY != y)) {
                        prevX = x;
                        prevY = y;
                        getCursorLoc(x, y, z, flags);
                        makeOval(x0-r, y0-r, 2*(r-(x0-x)), 2*(r-(y0-y)));
                }
        } while ((flags&left)>0)
}

macro "Soma ROI Tool Selected" {
        diameter = parseInt(call("ij.Prefs.get", "SomaRoiTool.diameter", 16));
        diameter = getNumber("Region Diameter (pixels):", diameter);
        call("ij.Prefs.set", "SomaRoiTool.diameter", diameter);
}


Thanks for the help!!!

Andrew

Michael Schmid-3 wrote

Hi Andrew,

why not do it all with a macro tool?

Roughly something like this:

macro 'Soma ROI Tool-C00cO11cc' {
   r = 10;  //radius for new roi
   left=16; //left-click flag
   getCursorLoc(x0, y0, z, flags);
   do {
     getCursorLoc(x, y, z, flags);
     moved = (x!=x0 || y!=y0); //maybe 1 or 2 pixel tolerance?
     if (moved) {
       getSelectionBounds(x, y, width, height);
       // depending on where the click was, resize, drag, or do nothing
       // here you can also constrain resizing, e.g. circular, min  
size, etc.
     }
   } while ((flags&left)>0)
   if (!moved)
     makeOval(x-r, y-r, 2*r+1, 2*r+1);
   //if desired, add to the roi manager (on modification, delete the  
old one first)
}

Michael
________________________________________________________________

On 23 Jun 2009, at 22:27, aweitz wrote:

> Hi everyone,
>
> Thanks so much for all the suggestions.  Unfortunately, I was  
> looking for
> some pretty specific behavior.  I needed a fast way to place and  
> resize
> ROIs, since each one of my images has about 100 of them.  I was  
> able to
> modify some of the source code and create a plugin to give me the  
> behavior I
> desired...
>
> I ended up implementing a new class called SomaRoi that extends  
> OvalRoi:
> public class SomaRoi extends OvalRoi {
>
> protected int region_size;
>
> public SomaRoi (int x, int y, int diameter, ImagePlus imp) {
>
> super(x, y, imp);
> region_size = diameter;
> }
>
> protected void handleMouseDrag(int sx, int sy, int flags) {
>
> if (state == CONSTRUCTING)
> flags = flags|Event.CTRL_MASK;
>
> super.handleMouseDrag(sx, sy, flags);
> }
>
> public void draw(Graphics g) {
>
> if (width == 0 && height == 0) {
> width = region_size;
> height = region_size;
> x = x - width/2;
> y = y - height/2;
> startX = x;
> startY = y;
> oldWidth = width;
> oldHeight = height;
> oldX = x;
> oldY = y;
> }
> else if (state == CONSTRUCTING) {
> x = x + width/2;
> y = y + height/2;
> oldX = x;
> oldY = y;
> }
>
> state = CONSTRUCTING;
> super.draw(g);
> }
> }
>
>
>
> Then I added a function to ImagePlus that creates soma ROIs:
> public void createNewSomaRoi(int sx, int sy, int diameter) {
> killRoi();
> roi = new SomaRoi(sx, sy, diameter, this);
> }
>
>
> Finally, I created a plugin that calls createNewSomaRoi() when the  
> user
> clicks on the image:
> public class Soma_Roi_Tool implements PlugInFilter {
>
> protected static int region_size;
>
> public int setup(String arg, ImagePlus imp) {
> this.region_size = 16;
> return DOES_ALL;
> }
>
> public void run(ImageProcessor ip) {
> if (IJ.versionLessThan("1.37c")) return;
> showSomaDialog();
> String macro =
> "macro 'Soma ROI Tool-C00cO11cc' {\n" +
> "  getCursorLoc(x, y, z, flags);\n" +
> "  call('Soma_Roi_Tool.mousePressed', x, y, z, flags);\n"+
> "}";
> new MacroInstaller().install(macro);
>   }
>
> public static void mousePressed(String xs, String ys, String zs,  
> String
> flags) {
> int x = Integer.parseInt(xs);
> int y = Integer.parseInt(ys);
> ImagePlus img = WindowManager.getCurrentImage();
> if (img!=null)
> img.createNewSomaRoi(x, y, region_size);
> }
>
> public static void showSomaDialog() {
> GenericDialog gd = new GenericDialog("Soma ROI Tool");
> gd.addNumericField("Diameter:", region_size, 0, 2, "pixels");
> gd.showDialog();
> if (gd.wasCanceled()) return;
> region_size = (int)gd.getNextNumber();
> }
> }
>
>
> This gave me the exact behavior I was looking for.  The only thing  
> I'm not
> happy about is having to modify the ImagePlus class.  If anyone has  
> an idea
> for doing this without modifying ImagePlus, or if anyone can  
> suggest a more
> elegant way of implementing this, I'd be happy to listen.
>
> Thanks again!
> Andrew
>
>
>
> dpoburko wrote:
>>
>> aweitz wrote:
>>> Hi,
>>>
>>> I'd like to modify the elliptical ROI tool.  Currently, the tool  
>>> only
>>> places
>>> ROIs with click and drag (to specify ellipse size).  A click  
>>> without a
>>> drag
>>> does nothing.  Instead, I'd like the click (without a drag) to  
>>> place an
>>> ROI
>>> of set size (12x12) at the area of the mouse click.  The click  
>>> and drag
>>> behavior should remain unmodified.
>>>
>>> Can anyone tell me where I can look in the code to make this
>>> modification?
>>>
>>> Thanks!
>>> Andrew
>>>
>> You could try the Time Series Analyzer plugin. (
>> http://rsb.info.nih.gov/ij/plugins/time-series.html) It will  
>> provide a
>> GUI to let you select a give ROI size then create ROIs with a single
>> click. You can resize ROIs by selecting a given ROI and dragging  
>> to the
>> new size or position, then clicking on Update in the ROI manager.
>>
>> Hope that helps,
>> Damon
>>
>> --
>>
>> Damon Poburko, PhD
>> Postdoctoral Research Fellow
>> Stanford University School of Medicine
>> Dept. of Molecular & Cellular Physiology
>> 279 Campus Dr., Beckman B103, Stanford, CA 94305
>> Ph: 650 725 7564, fax: [phone]
>>
>>
>
> --
> View this message in context: http://n2.nabble.com/Place-elliptical- 
> ROI-with-mouse-click-tp3139919p3144862.html
> Sent from the ImageJ mailing list archive at Nabble.com.

[aweitz]

In case anyone's interested, I made a couple updates to this tool:
1. ROIs are automatically added to the ROI manager.
2. If the user right-clicks while drawing a ROI, it cancels the current drawing.

Here's the new code:

macro 'Soma ROI Tool-C00cO11cc' {
        diameter = parseInt(call("ij.Prefs.get", "SomaRoiTool.diameter", 16));
        r = diameter / 2;
        left = 16; //left-click flag
        right = 4; //right-click flag
        getCursorLoc(x0, y0, z, flags);
        makeOval(x0-r, y0-r, 2*r, 2*r);
        prevX = -1;
        prevY = -1;
        setOption("Show All", true);
        setOption("DisablePopupMenu", true);
        showStatus("Right-click to cancel current ROI.");
        do {
                getCursorLoc(x, y, z, flags);
                if ((flags&right)>0) {
                        run("Select None");
                        setOption("DisablePopupMenu", false);
                        return;
                }
                moved = (x!=x0 || y!=y0);
                if (moved && (prevX != x || prevY != y)) {
                        prevX = x;
                        prevY = y;
                        getCursorLoc(x, y, z, flags);
                        makeOval(x0-r, y0-r, 2*(r-(x0-x)), 2*(r-(y0-y)));
                }
        } while ((flags&left)>0)
        roiManager("Add");
        roiManager("select", roiManager("count")-1);
        setOption("DisablePopupMenu", false);
}

macro "Soma ROI Tool Selected" {
        diameter = parseInt(call("ij.Prefs.get", "SomaRoiTool.diameter", 16));
        diameter = getNumber("Region Diameter (pixels):", diameter);
        call("ij.Prefs.set", "SomaRoiTool.diameter", diameter);
}

aweitz wrote

Hi Michael,

Awesome tip!  This is only my second week using ImageJ, and I didn't realize how powerful macros could be.  I was able to make a few modifications to your macro in order to get the tool to behave exactly like I wanted.  This macro can now be used to replace all that source code I modified!

Here's what I settled on for the macro:

macro 'Soma ROI Tool-C00cO11cc' {
        diameter = parseInt(call("ij.Prefs.get", "SomaRoiTool.diameter", 16));
        r = diameter / 2;
        left=16; //left-click flag
        getCursorLoc(x0, y0, z, flags);
        makeOval(x0-r, y0-r, 2*r, 2*r);
        prevX = -1;
        prevY = -1;
        setOption("Show All", true)
        do {
                getCursorLoc(x, y, z, flags);
                moved = (x!=x0 || y!=y0); //maybe 1 or 2 pixel tolerance?
                if (moved && (prevX != x || prevY != y)) {
                        prevX = x;
                        prevY = y;
                        getCursorLoc(x, y, z, flags);
                        makeOval(x0-r, y0-r, 2*(r-(x0-x)), 2*(r-(y0-y)));
                }
        } while ((flags&left)>0)
}

macro "Soma ROI Tool Selected" {
        diameter = parseInt(call("ij.Prefs.get", "SomaRoiTool.diameter", 16));
        diameter = getNumber("Region Diameter (pixels):", diameter);
        call("ij.Prefs.set", "SomaRoiTool.diameter", diameter);
}


Thanks for the help!!!

Andrew

Michael Schmid-3 wrote

Hi Andrew,

why not do it all with a macro tool?

Roughly something like this:

macro 'Soma ROI Tool-C00cO11cc' {
   r = 10;  //radius for new roi
   left=16; //left-click flag
   getCursorLoc(x0, y0, z, flags);
   do {
     getCursorLoc(x, y, z, flags);
     moved = (x!=x0 || y!=y0); //maybe 1 or 2 pixel tolerance?
     if (moved) {
       getSelectionBounds(x, y, width, height);
       // depending on where the click was, resize, drag, or do nothing
       // here you can also constrain resizing, e.g. circular, min  
size, etc.
     }
   } while ((flags&left)>0)
   if (!moved)
     makeOval(x-r, y-r, 2*r+1, 2*r+1);
   //if desired, add to the roi manager (on modification, delete the  
old one first)
}

Michael
________________________________________________________________

On 23 Jun 2009, at 22:27, aweitz wrote:

> Hi everyone,
>
> Thanks so much for all the suggestions.  Unfortunately, I was  
> looking for
> some pretty specific behavior.  I needed a fast way to place and  
> resize
> ROIs, since each one of my images has about 100 of them.  I was  
> able to
> modify some of the source code and create a plugin to give me the  
> behavior I
> desired...
>
> I ended up implementing a new class called SomaRoi that extends  
> OvalRoi:
> public class SomaRoi extends OvalRoi {
>
> protected int region_size;
>
> public SomaRoi (int x, int y, int diameter, ImagePlus imp) {
>
> super(x, y, imp);
> region_size = diameter;
> }
>
> protected void handleMouseDrag(int sx, int sy, int flags) {
>
> if (state == CONSTRUCTING)
> flags = flags|Event.CTRL_MASK;
>
> super.handleMouseDrag(sx, sy, flags);
> }
>
> public void draw(Graphics g) {
>
> if (width == 0 && height == 0) {
> width = region_size;
> height = region_size;
> x = x - width/2;
> y = y - height/2;
> startX = x;
> startY = y;
> oldWidth = width;
> oldHeight = height;
> oldX = x;
> oldY = y;
> }
> else if (state == CONSTRUCTING) {
> x = x + width/2;
> y = y + height/2;
> oldX = x;
> oldY = y;
> }
>
> state = CONSTRUCTING;
> super.draw(g);
> }
> }
>
>
>
> Then I added a function to ImagePlus that creates soma ROIs:
> public void createNewSomaRoi(int sx, int sy, int diameter) {
> killRoi();
> roi = new SomaRoi(sx, sy, diameter, this);
> }
>
>
> Finally, I created a plugin that calls createNewSomaRoi() when the  
> user
> clicks on the image:
> public class Soma_Roi_Tool implements PlugInFilter {
>
> protected static int region_size;
>
> public int setup(String arg, ImagePlus imp) {
> this.region_size = 16;
> return DOES_ALL;
> }
>
> public void run(ImageProcessor ip) {
> if (IJ.versionLessThan("1.37c")) return;
> showSomaDialog();
> String macro =
> "macro 'Soma ROI Tool-C00cO11cc' {\n" +
> "  getCursorLoc(x, y, z, flags);\n" +
> "  call('Soma_Roi_Tool.mousePressed', x, y, z, flags);\n"+
> "}";
> new MacroInstaller().install(macro);
>   }
>
> public static void mousePressed(String xs, String ys, String zs,  
> String
> flags) {
> int x = Integer.parseInt(xs);
> int y = Integer.parseInt(ys);
> ImagePlus img = WindowManager.getCurrentImage();
> if (img!=null)
> img.createNewSomaRoi(x, y, region_size);
> }
>
> public static void showSomaDialog() {
> GenericDialog gd = new GenericDialog("Soma ROI Tool");
> gd.addNumericField("Diameter:", region_size, 0, 2, "pixels");
> gd.showDialog();
> if (gd.wasCanceled()) return;
> region_size = (int)gd.getNextNumber();
> }
> }
>
>
> This gave me the exact behavior I was looking for.  The only thing  
> I'm not
> happy about is having to modify the ImagePlus class.  If anyone has  
> an idea
> for doing this without modifying ImagePlus, or if anyone can  
> suggest a more
> elegant way of implementing this, I'd be happy to listen.
>
> Thanks again!
> Andrew
>
>
>
> dpoburko wrote:
>>
>> aweitz wrote:
>>> Hi,
>>>
>>> I'd like to modify the elliptical ROI tool.  Currently, the tool  
>>> only
>>> places
>>> ROIs with click and drag (to specify ellipse size).  A click  
>>> without a
>>> drag
>>> does nothing.  Instead, I'd like the click (without a drag) to  
>>> place an
>>> ROI
>>> of set size (12x12) at the area of the mouse click.  The click  
>>> and drag
>>> behavior should remain unmodified.
>>>
>>> Can anyone tell me where I can look in the code to make this
>>> modification?
>>>
>>> Thanks!
>>> Andrew
>>>
>> You could try the Time Series Analyzer plugin. (
>> http://rsb.info.nih.gov/ij/plugins/time-series.html) It will  
>> provide a
>> GUI to let you select a give ROI size then create ROIs with a single
>> click. You can resize ROIs by selecting a given ROI and dragging  
>> to the
>> new size or position, then clicking on Update in the ROI manager.
>>
>> Hope that helps,
>> Damon
>>
>> --
>>
>> Damon Poburko, PhD
>> Postdoctoral Research Fellow
>> Stanford University School of Medicine
>> Dept. of Molecular & Cellular Physiology
>> 279 Campus Dr., Beckman B103, Stanford, CA 94305
>> Ph: 650 725 7564, fax: [phone]
>>
>>
>
> --
> View this message in context: http://n2.nabble.com/Place-elliptical- 
> ROI-with-mouse-click-tp3139919p3144862.html
> Sent from the ImageJ mailing list archive at Nabble.com.