Problem with Oval ROI

Posted by ganeshjothikumar on Aug 01, 2007; 7:18pm
URL: http://imagej.273.s1.nabble.com/Problem-with-Oval-ROI-tp3698737.html

Hi all
   
            I have an image over which I have to draw circles with certain center points and certain radius. I am using Oval ROI to dothis in a plugin. The code is something like this
                       
   
                      ImagePlus imp = WindowManager.getCurrentImage();
                    ip = imp.getProcessor();
                      Roi roi = new OvalRoi(10,10,100,100);
                      ip.setColor(new Color(13,14,23));                
                    ip.setMask(roi.getMask());
                    ip.setRoi(roi.getBoundingRect());
                    ip.fill(ip.getMask());
                      imp.updateAndDraw();

   
  Actually the oval gets drawn but not with center 10,10. It is drawn as though teh oval was drawn starting from 10,10 anddragging across. So if I want to draw a circle with center as 10,10 and radius as 100 hw can I do with Oval ROI or is there any other approach. Also I need to fill the circle with some colour. And I ned to detect the circle in the future also.. I should be able to select the circle and drag it.
   
  Please help me in this...
   
  Thanks
  ganesh

       
---------------------------------
Building a website is a piece of cake.
Yahoo! Small Business gives you all the tools to get online.