day 12, draw montain

d12/cmd.txt

@@ -1 +1,6 @@
 pandoc -o fail.pdf -t pdf fail.md
+
+awk -f draw.awk < input >| input.pgm
+convert input.pgm -scale 1600% input.png
+
+base64 input.png | tr -d '\n'

d12/draw.awk

@@ -0,0 +1,20 @@
+BEGIN { print "P2"
+	print "81 41"
+	print "25"
+}
+{
+	split($0,arr,"")
+	r = ""
+	#for (a in arr) {
+	#	print a, arr[a]
+	#}
+	#nextfile
+	for (i=1;i<=81;i++) {
+		c = arr[i]
+		if (c == "S") { v = 0 }
+		else if (c == "E") { v = 25 }
+		else { v = index("abcdefghijklmnopqrstuvwxyz", c)-1 }
+		r = r " " v
+	}
+	print r
+}

d12/viewpng.html

@@ -0,0 +1,5 @@
+<img>
+<script>
+let img = document.querySelector('img');
+img.src = "data:image/png;base64,"+ window.location.hash.substring(1);
+</script>