Reading from file for picture info
Hi Fellows,
I have this code right here, Im trying to reading the data from the binary file (It has 49,960 numbers which are between 0-255) called rosE_plot.datb.200. The last 200 in the file-name means there are 199 more files before that file to do the same procedure(translate from binary to picture file) and this one is 200th. Then I have to attach them all with each other and make a movie file...
I wanted to read the data from the file and paint the screen pixels one by one but it didnt work...
public class BinaryRead extends JComponent {
BufferedImage image;
File file;
FileInputStream input;
Graphics graph;
public BinaryRead() {
try
{
file = new File("rosE_plot.datb.200");
input = new FileInputStream(file);
int numberBytes = input.available();
byte bytearray[] = new byte[numberBytes];
input.read(bytearray);
int[] data = new int[numberBytes];
int width = getSize().width;
int height = getSize().height;
for (int i = 0; i < numberBytes; i++) {
data = ByteToInt(bytearray);
System.out.println(data);
}
input.close();
// image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// image.setRGB(0, 0, width, height, data, 0, width);
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
paintpixel(graph, x, y);
}
}
}
catch(FileNotFoundException FNFE)
{
System.out.println(FNFE.toString());
System.out.println("Unable to open the data file.");
System.exit(0);
}
catch(IOException IOE)
{
System.out.println(IOE.toString());
System.out.println("Could not read the input.");
System.exit(0);
}
}
public static int ByteToInt(byte b) {
return (int) b & 0xFF;
}
public void paintpixel(Graphics g, int x, int y){
g.setColor(Color.BLUE); //instead of Blue I want to put the data array for each pixel
g.fillRect(x,y,1,1);
}
public static void main(String args[])
{
JFrame f = new JFrame("BinaryRead");
f.getContentPane().add(new BinaryRead());
f.setSize(400, 400);
f.setLocation(100, 100);
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
f.setVisible(true);
}
}
