1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 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); ?> |