package ij.plugin.filter;
import java.awt.*;
import java.awt.image.*;
import java.util.Vector;
import java.io.*;
import ij.*;
import ij.process.*;
import ij.io.*;
import ij.gui.*;
import ij.measure.*;
/** Saves the XY coordinates of the current ROI boundary. */
public class XYWriter implements PlugInFilter {
ImagePlus imp;
public int setup(String arg, ImagePlus imp) {
this.imp = imp;
return DOES_ALL+ROI_REQUIRED+NO_CHANGES;
}
public void run(ImageProcessor ip) {
try {
saveXYCoordinates(imp);
} catch (IllegalArgumentException e) {
IJ.error("XYWriter", e.getMessage());
}
}
public void saveXYCoordinates(ImagePlus imp) {
Roi roi = imp.getRoi();
if (roi==null)
throw new IllegalArgumentException("ROI required");
if (!(roi instanceof PolygonRoi))
throw new IllegalArgumentException("Irregular area or line selection required");
SaveDialog sd = new SaveDialog("Save Coordinates as Text...", imp.getTitle(), ".txt");
String name = sd.getFileName();
if (name == null)
return;
String directory = sd.getDirectory();
PrintWriter pw = null;
try {
FileOutputStream fos = new FileOutputStream(directory+name);
BufferedOutputStream bos = new BufferedOutputStream(fos);
pw = new PrintWriter(bos);
}
catch (IOException e) {
IJ.error("XYWriter", ""+e);
return;
}
Rectangle r = roi.getBounds();
PolygonRoi p = (PolygonRoi)roi;
int n = p.getNCoordinates();
int[] x = p.getXCoordinates();
int[] y = p.getYCoordinates();
Calibration cal = imp.getCalibration();
String ls = System.getProperty("line.separator");
boolean scaled = cal.scaled();
for (int i=0; i<n; i++) {
if (scaled)
pw.print(IJ.d2s((r.x+x[i])*cal.pixelWidth) + "\t" + IJ.d2s((r.y+y[i])*cal.pixelHeight) + ls);
else
pw.print((r.x+x[i]) + "\t" + (r.y+y[i]) + ls);
}
pw.close();
}
}