/**
* Writes this map to a JPG file.
*
* @param filename the path and name of the file to create.
*/
public void writeToJPGFile(String filename) throws IOException {
this.prepareToDraw();
BufferedImage buffImage =
new BufferedImage(p.getWidth(), p.getHeight(), BufferedImage.TYPE_INT_RGB);
Graphics2D graphics2D = buffImage.createGraphics();
try {
p.draw(graphics2D);
System.out.println("Writing picture to " + filename);
ImageIO.write(buffImage, "JPG", new File(filename));
} finally {
graphics2D.dispose();
}
}
// Takes a PImage and compresses it into a JPEG byte stream
// Adapted from Dan Shiffman's UDP Sender code
public byte[] compressImage(PImage img) {
// We need a buffered image to do the JPG encoding
BufferedImage bimg = new BufferedImage(img.width, img.height, BufferedImage.TYPE_INT_RGB);
img.loadPixels();
bimg.setRGB(0, 0, img.width, img.height, img.pixels, 0, img.width);
// Need these output streams to get image as bytes for UDP communication
ByteArrayOutputStream baStream = new ByteArrayOutputStream();
BufferedOutputStream bos = new BufferedOutputStream(baStream);
// Turn the BufferedImage into a JPG and put it in the BufferedOutputStream
// Requires try/catch
try {
ImageIO.write(bimg, "jpg", bos);
} catch (IOException e) {
e.printStackTrace();
}
// Get the byte array, which we will send out via UDP!
return baStream.toByteArray();
}