OMGM Code

--- a
+++ b/omgm/img.php
@@ -0,0 +1,148 @@
+<?php
+include "gm.php";
+
+$zoom = $_GET["zoom"];
+$tileX = $_GET["x"];
+$tileY = $_GET["y"];
+
+$value = Google_Tile_Factors( $zoom );
+$tile = Google_Tile_Calc( $value, $tileY, $tileX ) ;
+
+header ('Content-type: image/png');
+
+$tileImage = "uploads/imagetiles/".$zoom."/x".$tileX."_y".$tileY.".png";
+
+if( file_exists($tileImage) ){
+$im = imagecreatefrompng($tileImage);
+imagepng($im);
+imagedestroy($im);
+}
+else{
+
+$im = @imagecreatetruecolor(256, 256) or die('Cannot Initialize new GD image stream');
+
+imagesavealpha($im, true);
+$trans_colour = imagecolorallocatealpha($im, 0, 0, 0, 127);
+imagefill($im, 0, 0, $trans_colour);
+  
+$text_color = imagecolorallocate($im, 233, 14, 91);
+
+$strArr = array(
+"X=".$tileX . ", Y=".$tileY.", ZOOM=".$zoom,
+"latN: ".$tile["LATN"],
+"lngW: ".$tile["LNGW"],
+"latS: ".$tile["LATS"],
+"lngE: ".$tile["LNGE"],
+"pixN: ".$tile["PYN"],
+"pixW: ".$tile["PXW"],
+"pixS: ".$tile["PYS"],
+"pixE: ".$tile["PXE"]
+);
+
+$y = 5;
+
+foreach($strArr as $str){
+  imagestring($im, 2, 5, $y, $str , $text_color);
+  $y = $y+15;
+}
+
+imagerectangle($im, 0, 0, 255, 255, $text_color);
+
+        
+imagepng($im);
+imagedestroy($im);
+}
+
+function output($str){
+  global $outputImg;
+    if(!$outputImg)
+    echo $str."\n";
+}
+function outputObj($obj){
+  global $outputImg;
+  if(!$outputImg)
+    print_r($obj);
+}
+
+function drawRoute($im, $color, $polygon){  
+  imagepolygon  ( $im  , $polygon , count($polygon) / 2 , $color  );
+}
+
+/*
+function createPolygon($zoom, $pointsLngLat, $top, $left){
+  $points = array();
+  foreach($pointsLngLat as $pointLngLat){
+        $point = Google_RelPix($pointLngLat[1], $pointLngLat[0], $zoom);
+        
+        $x = $point[0] - $top;
+        $y = $point[1] - $left;        
+        
+        // swap axes
+        $points[] = $y;
+        $points[] = $x;
+  }
+  return $points;
+}
+*/
+
+function insideImage($tile, $bbox){
+    $inside = true;    
+    
+    if( $bbox["minLng"] > $tile["LNGE"] || $bbox["maxLng"] < $tile["LNGW"] || 
+        $bbox["maxLat"] < $tile["LATS"] || $bbox["minLat"] > $tile["LATN"]){
+        $inside = false;
+    }    
+    
+    return $inside;
+}
+
+function parseToPoints($routeStr, $zoom, $top, $left){
+  $parts = split(":", $routeStr);
+  
+  $pointsLngLat = array();
+  
+  $polygon = array();
+  
+  $minLat = 90;
+  $maxLat = -90;
+  $minLng = 180;
+  $maxLng = -180;
+  
+  foreach($parts as $part){
+    $parsed = split(",", $part);
+    $lng = $parsed[1];
+    $lat = $parsed[2];
+    
+      
+    $pointsLngLat[] = array($lng, $lat);
+    
+    $point = Google_RelPix($lat, $lng, $zoom);
+        
+    $x = $point[0] - $top;
+    $y = $point[1] - $left;        
+        
+    // swap axes
+    $polygon[] = $y;
+    $polygon[] = $x;
+    
+    if( $lat > $maxLat ) $maxLat = $lat;
+    if( $lat < $minLat ) $minLat = $lat;
+    
+    if( $lng > $maxLng ) $maxLng = $lng;
+    if( $lng < $minLng ) $minLng = $lng;
+  }
+  
+  return array( array("minLat"=>$minLat,"maxLat"=>$maxLat,"minLng"=>$minLng,"maxLng"=>$maxLng), $pointsLngLat, $polygon);
+}
+
+function drawPoint($lat, $lng, $zoom, $top, $left, $im, $color){
+  $point = Google_RelPix($lat, $lng, $zoom);
+  
+  imagestring($im, 2,10, 150, $point[0].",".$point[1] , $color);
+  $x = $point[0] - $top;
+  $y = $point[1] - $left;
+  
+  imagestring($im, 2,10, 165, $x.",".$y , $color);
+  imagearc($im, $y, $x, 20, 20, 0, 360, $color);
+}
+?>