This program displays the output of fib-matrix mentioned in my blog

displaying-fib-matrix-output-as-function.kt

import java.awt.BorderLayout
import java.awt.Color
import java.awt.Graphics
import java.io.File
import javax.swing.JFrame
import javax.swing.JPanel
import javax.swing.WindowConstants

/**
 * Created by ice1000 on 2017/3/18.
 *
 * @author ice1000
 */

fun log(x: Int) = (Math.log(x.toDouble() + 1) * 3).toInt() + 4

fun main(args: Array<String>) {
	val txt = File("out.txt")
			.readText()
			.split("\r\n")
			.map { it.split(":").last() }
	JFrame("Fib Matrix Viewer").run a@ {
		setSize(700, 200)
		layout = BorderLayout()
		defaultCloseOperation = WindowConstants.EXIT_ON_CLOSE
		add(object : JPanel() {
			override fun paintComponent(g: Graphics?) {
				super.paintComponent(g)
				txt.forEachIndexed { x, y ->
					try {
						g?.run {
							color = Color.BLACK
							val _1_ = y.toInt() * 5
							val _2_ = log(x) * 5
							drawRect(x, this@a.height - _1_, 1, 1)
							color = Color.BLUE
							drawRect(x, this@a.height - _2_, 1, 1)
							if (_1_ >= _2_) println("Fail at $x, y1 = $_1_, y2 = $_2_")
						}
					} catch (e: Exception) {
					}
				}
			}
		}, BorderLayout.CENTER)
		isVisible = true
	}
}