--- a/displayHeatmap.php
+++ b/displayHeatmap.php
@@ -1,1 +1,95 @@
-
+<?php
+
+
+include('../lib/common.inc.php');
+
+$year = 2006;
+$ZeroX = 112.5;
+$MaxX = 157;
+$ZeroY = -9;
+$MaxY = -45;
+
+$XRange = $MaxX - $ZeroX;
+$YRange = abs($MaxY) - abs($ZeroY);
+$xdivs = 250;
+$xdivlength = $XRange / $xdivs;
+$ydivs = 250;
+$ydivheight = $YRange / $ydivs;
+
+$borderLeft = 100;
+$borderTop = 35;
+$width = 497;
+$height = 457;
+//echo "http://dev.openstreetmap.org/~pafciu17/?module=map&bbox=".$ZeroX.",".$ZeroY.",".$MaxX.",".$MaxY."&width=".$width."&height=".$height;
+//$handle = ImageCreate ($width, $height) or die ("Cannot Create image");
+$handle = imagecreatefrompng('../images/australia.png');
+$white = imagecolorallocate($handle, 0, 0, 0);
+imagecolortransparent($handle, $white);
+
+$query = "SELECT supplierPostcode, sum(value) as value, lat, lon FROM `contractnotice`,`postcodes` where childCN = 0 AND supplierCountry = 'Australia' AND YEAR(contractStart) >= '$year' AND supplierPostcode = postcode GROUP BY supplierPostcode";
+$result = mysql_query($query);
+
+$left = "FFFF50";
+$right= "EF0050";
+$leftR = hexdec(substr($left,0,2));
+$leftG = hexdec(substr($left,2,2));
+$leftB = hexdec(substr($left,4,2));
+$rightR = hexdec(substr($right,0,2));
+$rightG = hexdec(substr($right,2,2));
+$rightB = hexdec(substr($right,4,2));
+for($i=0;$i<250;$i++) {
+    $colorset[$i] = imagecolorallocatealpha($handle, $leftR + ($i*(($rightR-$leftR)/250)), $leftG + ($i*(($rightG-$leftG)/250)), $leftB + ($i*(($rightB-$leftB)/250)),117 - ($i/250)*40);
+}
+
+while ($row = mysql_fetch_array($result, MYSQL_BOTH))
+{
+   $xpage = round((($XRange - ($MaxX - $row['lon'])) / $xdivlength));
+	if ($row['lat'] < -40.25) $row['lat']-= 0.75;
+   $ypage = round(($YRange - (abs($MaxY) - abs($row['lat']))) / $ydivheight);
+   @$pagevalues[$xpage][$ypage] += $row['value'];
+   //echo $ypage." ".$xpage."<br>";
+}
+
+$max = 0;
+$min = 0;
+for ($i = 0;$i < $xdivs; $i++ ) {
+   for ($j = 0;$j < $ydivs; $j++ ) {
+   if (@$pagevalues[$i][$j])
+   {
+      if (@$pagevalues[$i][$j] > $max) $max = @$pagevalues[$i][$j];
+      if ($min == 0 || @$pagevalues[$i][$j] < $min) $min = @$pagevalues[$i][$j];
+   } else {
+      @$pagevalues[$i][$j] = ((@$pagevalues[$i][$j] + (@$pagevalues[$i+1][$j] + @$pagevalues[$i][$j+1]
+                           + @$pagevalues[$i-1][$j] + @$pagevalues[$i][$j-1])/4) /2)-9;
+      @$pagevalues[$i-1][$j] = ((@$pagevalues[$i-1][$j] + (@$pagevalues[$i][$j] + @$pagevalues[$i-1][$j+1]
+                           + @$pagevalues[$i-2][$j] + @$pagevalues[$i-1][$j-1])/4) /2)-9;
+      @$pagevalues[$i][$j-1] = ((@$pagevalues[$i][$j-1] + (@$pagevalues[$i+1][$j-1] + @$pagevalues[$i][$j]
+                           + @$pagevalues[$i-1][$j-1] + @$pagevalues[$i][$j-2])/4) /2)-9;
+   } 
+   }
+}
+//echo $max." ".$min;
+//echo "<table width='100%'>";
+for ($i = 0;$i < $xdivs; $i++ ) {
+//   echo "<tr>";
+   for ($j = 0; $j < $ydivs; $j++ ) {
+//   echo ("<td>". log10(@$pagevalues[$i][$j])/log10($max) ."</td>");
+   if ((@$pagevalues[$i][$j]) > $min) {
+      $x = $i*($width/$xdivs);
+      $x1 = $borderLeft + $x -($width/$xdivs);
+      $x2 = $borderLeft + $x +($width/$xdivs);
+      $y = $j*($height/$ydivs);
+      $y1 = $borderTop + $y - ($height/$ydivs);
+      $y2 = $borderTop + $y + ($height/$ydivs);
+      imagefilledrectangle ($handle, $x1, $y1, $x2, $y2, $colorset[(int)((log10(@$pagevalues[$i][$j])/log10($max))*249)]);
+   }
+   }
+//echo "</tr>";
+}
+//echo "</table>"
+
+header ("Content-type: image/png");
+ImagePng ($handle); 
+
+
+?>