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PixelVisualizationOfPi.java
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PixelVisualizationOfPi.java
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import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Scanner;
public class PixelVisualizationOfPi {
static final int W = 10, H = 10;
static String pi = "";
static BufferedImage img = new BufferedImage(10000, 10000, BufferedImage.TYPE_INT_RGB);
public static void main(String[] args) throws FileNotFoundException {
Scanner sc = new Scanner(new File("pi.txt"));
pi = sc.nextLine();
for (int i = 0; i < img.getWidth() / W; i++) {
for (int j = 0; j < img.getHeight() / H; j++) {
if (i * img.getHeight() / H + j >= pi.length()) break;
Color col = Color.getHSBColor(Float.parseFloat(Character.toString(
pi.charAt(i * img.getHeight() / H + j))) / 10.0f, 1, 1);
int[] arrC = new int[W * H];
for (int k = 0; k < W * H; k++) {
arrC[k] = col.getRGB();
}
img.setRGB(j * W, i * H, W, H, arrC, 0, 0);
}
}
try {
ImageIO.write(img, "png", new File("Pi_digits-1_million.png"));
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("Done!");
}
}