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mapper.php
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mapper.php
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<?php
$rootpath = "../";
require_once('./common.inc.php');
function isFloat($n)
{
return ( $n == strval(floatval($n)) ) ? true : false;
}
function typeLetter($intType)
{
switch ($intType) {
case 1: return "U";
break; //unknown
case 2: return "T";
break; //traditional
case 3: return "M";
break; //multi
case 4: return "V";
break; //virtual
case 5: return "W";
break; //webcam
case 6: return "E";
break; //event
case 7: return "Q";
break; //quiz
case 8: return "O";
break; //mOving
case 9: return "C";
break; //math
case 10: return "D";
break; //Drive-in
default: return "";
}
}
function scoreColor($im, $score, $votes, $default)
{
if ($votes < 3) {
return $default;
} else {
// show cache's score
if ($score <= 0.5)
return imagecolorallocate($im, 255, 0, 0);
if ($score > 0.5 && $score <= 1.0)
return imagecolorallocate($im, 255, 51, 0);
if ($score > 1.0 && $score <= 1.5)
return imagecolorallocate($im, 255, 102, 0);
if ($score > 1.5 && $score <= 3.5)
return imagecolorallocate($im, 255, 153, 0);
if ($score > 3.5 && $score <= 4.5)
return imagecolorallocate($im, 153, 255, 0);
if ($score > 4.5 && $score <= 5.0)
return imagecolorallocate($im, 102, 255, 0);
if ($score > 5.0 && $score <= 5.5)
return imagecolorallocate($im, 51, 255, 0);
if ($score > 5.5)
return imagecolorallocate($im, 0, 255, 0);
}
}
function latlon_to_pix($lat, $lon, $rect)
{
$lat = ($lat);
$lon = ($lon);
$x_min = 0;
$x_max = 256;
$y_min = 0;
$y_max = 256;
$lon_max = $rect->x;
$lon_min = $rect->x + $rect->width;
$lat_min = $rect->y;
$lat_max = $rect->y + $rect->height;
$x = $x_min + ($x_max - $x_min) *
( 1 - ($lon - $lon_min) / ($lon_max - $lon_min) );
$y = $y_max - ($y_max - $y_min) *
( ($lat - $lat_min) / ($lat_max - $lat_min) );
return array("x" => round($x), "y" => round($y));
}
$x = intval($_GET['x']);
$y = intval($_GET['y']);
$zoom = intval($_GET['z']);
if ($zoom < 4)
exit;
$user_id = intval($_GET['userid']);
$rect = getLatLongXYZ($x, $y, $zoom);
$im = imagecreatetruecolor(256, 256);
$color = array();
$color['found'] = imagecolorallocate($im, 199, 198, 197);
$color['new'] = imagecolorallocate($im, 250, 249, 116);
$color['own'] = imagecolorallocate($im, 112, 192, 103);
$color['r'] = imagecolorallocate($im, 237, 129, 125);
$black = imagecolorallocate($im, 0, 0, 0);
$twhite = imagecolorallocate($im, 250, 250, 250);
imagefilledrectangle($im, 0, 0, 256, 256, $twhite);
imagecolortransparent($im, $twhite);
//$alpha = imagecolorallocatealpha($im, 199, 198, 197, 99);
$bound = 0.15;
// enable searching for ignored caches
if ($_GET['h_ignored'] == "true") {
$h_sel_ignored = "cache_ignore.id as ignored,";
$h_ignored = "LEFT JOIN cache_ignore ON (cache_ignore.user_id='" . sql_escape($user_id) . "' AND cache_ignore.cache_id=caches.cache_id)";
} else {
$h_sel_ignored = "";
$h_ignored = "";
}
if ($_GET['be_ftf'] == "true") {
$own_not_attempt = "caches.founds>0";
$_GET['h_temp_unavail'] = "true";
$_GET['h_arch'] = "true";
} else
$own_not_attempt = "caches.cache_id IN (SELECT cache_id FROM cache_logs WHERE deleted=0 AND user_id='" . sql_escape($user_id) . "' AND (type=1 OR type=8))";
$min_score = floatval($_GET['min_score']);
$max_score = floatval($_GET['max_score']);
if ($_GET['h_nogeokret'] == "true")
$filter_by_type_string .= " AND caches.cache_id IN (SELECT cache_id FROM caches WHERE wp_oc IN (SELECT wp FROM gk_item_waypoint WHERE id IN (SELECT id FROM gk_item WHERE stateid<>1 AND stateid<>4 AND typeid<>2)) OR (wp_gc IN (SELECT wp FROM gk_item_waypoint WHERE id IN (SELECT id FROM gk_item WHERE stateid<>1 AND stateid<> 4 AND typeid<>2)) AND wp_gc <> '') OR (wp_nc IN (SELECT wp FROM gk_item_waypoint WHERE id IN (SELECT id FROM gk_item WHERE stateid<>1 AND stateid<>4 AND typeid<>2)) AND wp_nc <> '')) ";
else
$filter_by_type_string = "";
$sql = "SELECT $h_sel_ignored caches.cache_id, caches.name, caches.wp_oc as wp, caches.votes, caches.score, caches.latitude, caches.longitude, caches.type, caches.status as status, datediff(now(), caches.date_hidden) as old, caches.user_id, IF($own_not_attempt, 1, 0) as found
FROM caches
$h_ignored
WHERE ( caches.latitude BETWEEN " . ($rect->y - $rect->height * $bound) . " AND " . ($rect->y + $rect->height + $rect->height * $bound) . " ) AND ( caches.longitude BETWEEN " . ($rect->x - $rect->width * $bound) . " AND " . ($rect->x + $rect->width + $rect->width * $bound) . " ) " . $filter_by_type_string;
$query = mysql_query($sql);
while ($cache = mysql_fetch_array($query)) {
if (!($_GET['h_u'] == "true" && $cache['type'] == 1) // hide unknown type?
&& !($_GET['h_t'] == "true" && $cache['type'] == 2) // hide traditional type?
&& !($_GET['h_m'] == "true" && $cache['type'] == 3) // hide multi type?
&& !($_GET['h_v'] == "true" && $cache['type'] == 4) // hide virtual type?
&& !($_GET['h_w'] == "true" && $cache['type'] == 5) // hide webcam type?
&& !($_GET['h_e'] == "true" && $cache['type'] == 6) // hide event type?
&& !($_GET['h_q'] == "true" && $cache['type'] == 7) // hide quiz type?
&& !($_GET['h_o'] == "true" && $cache['type'] == 8) // hide mobile type?
&& !($_GET['h_ignored'] == "true" && $cache['ignored']) // hide ignored?
&& !($_GET['h_own'] == "true" && ($cache['user_id'] == $user_id)) // hide own?
&& !($_GET['h_found'] == "true" && $cache['found'] ) // hide found?
&& !($_GET['be_ftf'] == "true" && ($cache['found'] == 1 || $cache['status'] != 1 || $cache['user_id'] == $user_id)) // find ftf
&& !($_GET['h_avail'] == "true" && $cache['status'] == 1 ) // hide ready to find?
&& !($_GET['h_temp_unavail'] == "true" && $cache['status'] == 2 ) // hide ready to find?
&& !($_GET['h_arch'] == "true" && $cache['status'] == 3 ) // hide ready to find?
&& !($_GET['h_noattempt'] == "true" && !$cache['found'] ) // hide not yet found?
&& (($cache['score'] >= $min_score && $cache['score'] <= $max_score && $cache['votes'] >= 3) || ($cache['votes'] < 3 && $_GET['h_noscore'] == "true" )) && $cache['status'] <= 3 // always hide waiting for approval, not yet available, blocked by rr
&& $_GET['h_pl'] == "true"
) {
// caches, user haven't been searching for
$pt = latlon_to_pix($cache['latitude'], $cache['longitude'], $rect);
if ($cache['user_id'] == $user_id)
$typeColor = "own";
else
if ($cache['found'])
$typeColor = "found";
else
if ($cache['old'] <= 10)
$typeColor = "new";
else
$typeColor = "r";
if ($zoom > 13)
$pointer = 1.5 * $zoom;
else
$pointer = 0;
if ($_GET['sc'] == 1)
imagefilledellipse($im, $pt["x"], $pt["y"] - $pointer, max(2 * $zoom - 7, 7), max(2 * $zoom - 7, 7), scoreColor($im, $cache['score'], $cache['votes'], $color[$typeColor]));
// BLACK ELLIPSE
imageellipse($im, $pt["x"], $pt["y"] - $pointer, max(2 * $zoom - 10, 5), max(2 * $zoom - 10, 5), $black);
// MARKER ELLIPSE
imagefilledellipse($im, $pt["x"], $pt["y"] - $pointer, max(2 * $zoom - 12, 3), max(2 * $zoom - 12, 3), $color[$typeColor]);
if ($zoom > 13) {
$pointer = 1.5 * $zoom;
// show additional pointer
$value = array(
$pt["x"] - max(2 * $zoom - 10, 5) / 2, $pt["y"] - $pointer,
$pt["x"], $pt["y"],
$pt["x"] + max(2 * $zoom - 10, 5) / 2, $pt["y"] - $pointer
);
imagefilledpolygon($im, $value, 3, $color[$typeColor]);
imageline($im, $pt["x"] - max(2 * $zoom - 10, 5) / 2, $pt["y"] - $pointer, $pt["x"], $pt["y"], $black);
imageline($im, $pt["x"] + max(2 * $zoom - 10, 5) / 2, $pt["y"] - $pointer, $pt["x"], $pt["y"], $black);
//imageellipse($im, $pt["x"], $pt["y"]+1.5*$zoom, $radius, $radius, $black);
if ($_GET['signes'] == "true") {
$fontSize = 1.3 * $zoom - 11;
$box = imagettfbbox($fontSize, 0, '../util.sec/bt.ttf', $cache['wp']);
imagettftext($im, $fontSize, 0, $pt["x"] - (int) abs($box[2] / 2), $pt["y"] + (int) (abs($box[7] / 2)) - $pointer + max(2 * $zoom + 28, 5) / 2, $black, $rootpath . 'util.sec/bt.ttf', $cache['wp']);
}
}
if ($zoom > 10) {
//echo "aaa";
$fontSize = 1.55 * $zoom - 11;
$box = imagettfbbox($fontSize, 0, '../util.sec/bt.ttf', typeLetter($cache['type']));
imagettftext($im, $fontSize, 0, $pt["x"] - (int) abs($box[2] / 2), $pt["y"] + (int) (abs($box[7] / 2)) - $pointer, $black, $rootpath . 'util.sec/bt.ttf', typeLetter($cache['type']));
}
//imagestring($im, 5, $pt["x"], $pt["y"], 'T', $white);
}
//else
{
// found caches
}
// end markers
}
$sql = "SELECT longitude, latitude, notify_radius FROM user WHERE user_id = " . sql_escape(intval($user_id));
$query = mysql_query($sql);
$userdata = mysql_fetch_array($query);
$watch = latlon_to_pix($userdata['latitude'], $userdata['longitude'], $rect);
//if( $_GET['watch_circle'] == "true" )
// {
//echo "u=".$userdata['notify_radius']."aa".$user_id.$black;
//die();
$north = calcLatLong($userdata['longitude'], $userdata['latitude'], $userdata['notify_radius'] * 1000, 0);
$east = calcLatLong($userdata['longitude'], $userdata['latitude'], $userdata['notify_radius'] * 1000, 90);
$north_pt = latlon_to_pix($north['latitude'], $north['longitude'], $rect);
$east_pt = latlon_to_pix($east['latitude'], $east['longitude'], $rect);
//print_r($north_pt);
//print_r($east_pt);
//print_r($watch);
//die();
imageellipse($im, $watch["x"], $watch["y"], $watch["x"] - $east_pt["x"], $watch["y"] - $north_pt["y"], $alpha);
//}
unset($icons);
header("Content-Type: image/gif");
imagegif($im, '', 9);
imagedestroy($im);
// utility class to hold the rectangle position and size.
class Rectangle
{
var $x, $y;
var $width, $height;
}
/** returns the Google zoom level for the keyhole string. */
function getTileZoom($keyHoleString)
{
return strlen($keyHoleString) - 1;
}
/**
* returns a Rectangle2D with x = lon, y = lat, width=lonSpan, height=latSpan for a keyhole string.
*/
/**
* Calculate the unknown coordinates at bearing and distance from known coordinates
*
* Developed by TJ (http://tjworld.net/software/kml/) for Google Earth applications
*
* @param float long Longitude of known point (decimal degreees)
* @param float lat Latitude of known point (decimal degrees)
* @param float distance Distance to unknown point (meters)
* @param float bearing Bearing (angle in degrees) to unknown point.
* Measured from North=0, -ve going to west (-90), +ve going to east (90)
* @returns array Associative array containing unknown 'longitude' and 'latitude'
*/
function calcLatLong($long, $lat, $distance, $bearing)
{
$EARTH_RADIUS_EQUATOR = 6378140.0;
$RADIAN = 180 / pi();
$b = $bearing / $RADIAN;
$long = $long / $RADIAN;
$lat = $lat / $RADIAN;
$f = 1 / 298.257;
$e = 0.08181922;
$R = $EARTH_RADIUS_EQUATOR * (1 - $e * $e) / pow((1 - $e * $e * pow(sin($lat), 2)), 1.5);
$psi = $distance / $R;
$phi = pi() / 2 - $lat;
$arccos = cos($psi) * cos($phi) + sin($psi) * sin($phi) * cos($b);
$latA = (pi() / 2 - acos($arccos)) * $RADIAN;
$arcsin = sin($b) * sin($psi) / sin($phi);
$longA = ($long - asin($arcsin)) * $RADIAN;
return array('longitude' => $longA, 'latitude' => $latA);
}
function getLatLongSat($keyholeStr)
{
$lon = -180; // x
$lonWidth = 360; // width 360
//double lat = -90; // y
//double latHeight = 180; // height 180
$lat = -1;
$latHeight = 2;
for ($i = 1; $i < strlen($keyholeStr); $i++) {
$lonWidth /= 2;
$latHeight /= 2;
$c = substr($keyholeStr, $i, 1);
switch ($c) {
case 's':
$lon += $lonWidth;
break;
case 'r':
$lat += $latHeight;
$lon += $lonWidth;
break;
case 'q':
$lat += $latHeight;
break;
case 't':
break;
default:
return;
}
}
// convert lat and latHeight to degrees in a transverse mercator projection
// note that in fact the coordinates go from about -85 to +85 not -90 to 90!
$latHeight += $lat;
$latHeight = (2 * atan(exp(PI() * $latHeight))) - (PI() / 2);
$latHeight *= (180 / PI());
$lat = (2 * atan(exp(PI() * $lat))) - (PI() / 2);
$lat *= (180 / PI());
$latHeight -= $lat;
if ($lonWidth < 0) {
$lon = $lon + $lonWidth;
$lonWidth = -$lonWidth;
}
if ($latHeight < 0) {
$lat = $lat + $latHeight;
$latHeight = -$latHeight;
}
// lat = Math.asin(lat) * 180 / Math.PI();
$rect = new Rectangle;
$rect->x = $lon;
$rect->y = $lat;
$rect->width = $lonWidth;
$rect->height = $latHeight;
return $rect;
}
/**
* returns a Rectangle2D with x = lon, y = lat, width=lonSpan, height=latSpan
* for an x,y,zoom as used by google.
*/
function getLatLongXYZ($x, $y, $zoom)
{
$debug = $_GET['debug'];
$lon = -180; // x
$lonWidth = 360; // width 360
$lat = -1;
$latHeight = 2;
$tilesAtThisZoom = 1 << ($zoom);
$lonWidth = 360.0 / $tilesAtThisZoom;
$lon = -180 + ($x * $lonWidth);
$latHeight = 2.0 / $tilesAtThisZoom;
$lat = (($tilesAtThisZoom / 2 - $y - 1) * $latHeight);
if ($debug) {
echo("(uniform) lat:$lat latHt:$latHeight<br />");
}
// convert lat and latHeight to degrees in a transverse mercator projection
// note that in fact the coordinates go from about -85 to +85 not -90 to 90!
$latHeight += $lat;
$latHeight = (2 * atan(exp(PI() * $latHeight))) - (PI() / 2);
$latHeight *= (180 / PI());
$lat = (2 * atan(exp(PI() * $lat))) - (PI() / 2);
$lat *= (180 / PI());
if ($debug) {
echo("pre subtract lat: $lat latHeight $latHeight<br />");
}
$latHeight -= $lat;
if ($debug) {
echo("lat: $lat latHeight $latHeight<br />");
}
if ($lonWidth < 0) {
$lon = $lon + $lonWidth;
$lonWidth = -$lonWidth;
}
if ($latHeight < 0) {
$lat = $lat + $latHeight;
$latHeight = -$latHeight;
}
$rect = new Rectangle();
$rect->x = $lon;
$rect->y = $lat;
$rect->height = $latHeight;
$rect->width = $lonWidth;
return $rect;
}
?>