diff --git a/src/main/scala/demo/Main.scala b/src/main/scala/demo/Main.scala
index 51bfdfb..417717b 100644
--- a/src/main/scala/demo/Main.scala
+++ b/src/main/scala/demo/Main.scala
@@ -1,5 +1,6 @@
 package demo
 
+import math._
 import geotrellis.raster._
 import geotrellis.spark._
 
@@ -7,6 +8,9 @@ object Main {
   def helloSentence = "Hello GeoTrellis"
 
   def main(args: Array[String]): Unit = {
-    println(helloSentence)
+    val data = for (y <- -10 to 10; x <- -40 to 40) yield -cos(0.2 * x + 0.25 * y) - cos(-0.1 * x + 0.45 * y)
+    val tile = DoubleArrayTile(data.toArray, 81, 21)
+    val art = tile.renderAscii(geotrellis.raster.render.ascii.AsciiArtEncoder.Palette.HATCHING)
+    println(art.patch(art.length / 2 - helloSentence.length / 2, helloSentence, helloSentence.length))
   }
 }