| Transformer |

    package ij.plugin.filter;
    import ij.*;
    import ij.process.*;
    import ij.gui.*;
    import ij.measure.Calibration;
    import java.awt.*;
    import java.awt.image.*;

    /** Implements the flip and rotate commands in the Image/Transformations submenu. */
    public class Transformer implements PlugInFilter {

        ImagePlus imp;
        String arg;

        public int setup(String arg, ImagePlus imp) {
            this.arg = arg;
            this.imp = imp;
            if (arg.equals("fliph") || arg.equals("flipv"))
                return IJ.setupDialog(imp, DOES_ALL+NO_UNDO);
            else
                return DOES_ALL+NO_UNDO+NO_CHANGES;
        }

        public void run(ImageProcessor ip) {

            if (arg.equals("fliph")) {
                ip.flipHorizontal();
                return;
            }

            if (arg.equals("flipv")) {
                ip.flipVertical();
                return;
            }

            if (arg.equals("right") || arg.equals("left")) {
                StackProcessor sp = new StackProcessor(imp.getStack(), ip);
                ImageStack s2 = null;
                if (arg.equals("right"))
                    s2 = sp.rotateRight();
                else
                    s2 = sp.rotateLeft();
                Calibration cal = imp.getCalibration();
                imp.setStack(null, s2);
                double pixelWidth = cal.pixelWidth;
                cal.pixelWidth = cal.pixelHeight;
                cal.pixelHeight = pixelWidth;
                return;
            }
        }

    }

| Transformer |