You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
594 lines
19 KiB
594 lines
19 KiB
<?php
|
|
namespace p3k\geo\StaticMap;
|
|
use p3k\geo\WebMercator, p3k\Geocoder;
|
|
use Imagick, ImagickPixel, ImagickDraw;
|
|
|
|
function generate($params, $filename, $assetPath, $is_authenticated=false) {
|
|
|
|
$bounds = array(
|
|
'minLat' => 90,
|
|
'maxLat' => -90,
|
|
'minLng' => 180,
|
|
'maxLng' => -180
|
|
);
|
|
|
|
// If any markers are specified, choose a default lat/lng as the center of all the markers
|
|
$markers = array();
|
|
if($markersTemp=k($params,'marker')) {
|
|
if(!is_array($markersTemp))
|
|
$markersTemp = array($markersTemp);
|
|
|
|
// If no latitude is set, use the center of all the markers
|
|
foreach($markersTemp as $i=>$m) {
|
|
if(preg_match_all('/(?P<k>[a-z]+):(?P<v>[^;]+)/', $m, $matches)) {
|
|
$properties = array();
|
|
foreach($matches['k'] as $j=>$key) {
|
|
$properties[$key] = $matches['v'][$j];
|
|
}
|
|
|
|
// Skip invalid marker definitions, show error in a header
|
|
if(array_key_exists('icon', $properties) && (
|
|
(array_key_exists('lat', $properties) && array_key_exists('lng', $properties))
|
|
|| array_key_exists('location', $properties)
|
|
)
|
|
) {
|
|
|
|
// Geocode the provided location and return lat/lng
|
|
if(array_key_exists('location', $properties)) {
|
|
$result = Geocoder::geocode($properties['location']);
|
|
if(!$result) {
|
|
#header('X-Marker-' . ($i+1) . ': error geocoding location "' . $properties['location'] . '"');
|
|
continue;
|
|
}
|
|
|
|
$properties['lat'] = $result->latitude;
|
|
$properties['lng'] = $result->longitude;
|
|
}
|
|
|
|
if(preg_match('/https?:\/\/(.+)/', $properties['icon'], $match)) {
|
|
$properties['iconImg'] = false;
|
|
// Only allow external referenced icons from authenticated requests
|
|
if($is_authenticated) {
|
|
// Looks like an external image, attempt to download it
|
|
$ch = curl_init($properties['icon']);
|
|
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
|
|
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
|
|
$img = curl_exec($ch);
|
|
$properties['iconImg'] = @imagecreatefromstring($img);
|
|
}
|
|
} else {
|
|
$properties['iconImg'] = imagecreatefrompng($assetPath . '/' . $properties['icon'] . '.png');
|
|
}
|
|
|
|
if($properties['iconImg']) {
|
|
$markers[] = $properties;
|
|
}
|
|
|
|
if($properties['lat'] < $bounds['minLat'])
|
|
$bounds['minLat'] = $properties['lat'];
|
|
|
|
if($properties['lat'] > $bounds['maxLat'])
|
|
$bounds['maxLat'] = $properties['lat'];
|
|
|
|
if($properties['lng'] < $bounds['minLng'])
|
|
$bounds['minLng'] = $properties['lng'];
|
|
|
|
if($properties['lng'] > $bounds['maxLng'])
|
|
$bounds['maxLng'] = $properties['lng'];
|
|
} else {
|
|
#header('X-Marker-' . ($i+1) . ': missing icon, or lat/lng/location parameters');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
$paths = array();
|
|
if($pathsTemp=k($params,'path')) {
|
|
if(!is_array($pathsTemp))
|
|
$pathsTemp = array($pathsTemp);
|
|
|
|
foreach($pathsTemp as $i=>$path) {
|
|
$properties = array();
|
|
if(preg_match_all('/(?P<k>[a-z]+):(?P<v>[^;]+)/', $path, $matches)) {
|
|
foreach($matches['k'] as $j=>$key) {
|
|
$properties[$key] = $matches['v'][$j];
|
|
}
|
|
}
|
|
|
|
// Set default color and weight if none specified
|
|
if(!array_key_exists('color', $properties))
|
|
$properties['color'] = '333333';
|
|
if(!array_key_exists('weight', $properties))
|
|
$properties['weight'] = 3;
|
|
|
|
// Now parse the points into an array
|
|
if(preg_match_all('/(?P<point>\[[0-9\.-]+,[0-9\.-]+\])/', $path, $matches)) {
|
|
$properties['path'] = json_decode('[' . implode(',', $matches['point']) . ']');
|
|
// Adjust the bounds to fit the path
|
|
|
|
foreach($properties['path'] as $point) {
|
|
if($point[1] < $bounds['minLat'])
|
|
$bounds['minLat'] = $point[1];
|
|
|
|
if($point[1] > $bounds['maxLat'])
|
|
$bounds['maxLat'] = $point[1];
|
|
|
|
if($point[0] < $bounds['minLng'])
|
|
$bounds['minLng'] = $point[0];
|
|
|
|
if($point[0] > $bounds['maxLng'])
|
|
$bounds['maxLng'] = $point[0];
|
|
}
|
|
}
|
|
|
|
if(array_key_exists('path', $properties))
|
|
$paths[] = $properties;
|
|
}
|
|
}
|
|
|
|
|
|
$defaultLatitude = $bounds['minLat'] + (($bounds['maxLat'] - $bounds['minLat']) / 2);
|
|
$defaultLongitude = $bounds['minLng'] + (($bounds['maxLng'] - $bounds['minLng']) / 2);
|
|
|
|
if(k($params,'latitude') !== false) {
|
|
$latitude = k($params,'latitude');
|
|
$longitude = k($params,'longitude');
|
|
} elseif(k($params,'location') !== false) {
|
|
$result = ArcGISGeocoder::geocode(k($params,'location'));
|
|
if(!$result->success) {
|
|
$latitude = $defaultLatitude;
|
|
$longitude = $defaultLongitude;
|
|
#header('X-Geocode: error');
|
|
#header('X-Geocode-Result: ' . $result->raw);
|
|
} else {
|
|
$latitude = $result->latitude;
|
|
$longitude = $result->longitude;
|
|
#header('X-Geocode: success');
|
|
#header('X-Geocode-Result: ' . $latitude . ', ' . $longitude);
|
|
}
|
|
} else {
|
|
$latitude = $defaultLatitude;
|
|
$longitude = $defaultLongitude;
|
|
}
|
|
|
|
|
|
$width = k($params, 'width', 300);
|
|
$height = k($params, 'height', 300);
|
|
|
|
|
|
// If no zoom is specified, choose a zoom level that will fit all the markers and the path
|
|
if(k($params,'zoom')) {
|
|
$zoom = k($params,'zoom');
|
|
} else {
|
|
|
|
// start at max zoom level (20)
|
|
$fitZoom = 21;
|
|
$doesNotFit = true;
|
|
while($fitZoom > 1 && $doesNotFit) {
|
|
$fitZoom--;
|
|
|
|
$center = webmercator\latLngToPixels($latitude, $longitude, $fitZoom);
|
|
|
|
$leftEdge = $center['x'] - $width/2;
|
|
$topEdge = $center['y'] - $height/2;
|
|
|
|
// check if the bounding rectangle fits within width/height
|
|
$sw = webmercator\latLngToPixels($bounds['minLat'], $bounds['minLng'], $fitZoom);
|
|
$ne = webmercator\latLngToPixels($bounds['maxLat'], $bounds['maxLng'], $fitZoom);
|
|
|
|
// leave some padding around the objects
|
|
$fitHeight = abs($ne['y'] - $sw['y']) + (0.1 * $height);
|
|
$fitWidth = abs($ne['x'] - $sw['x']) + (0.1 * $width);
|
|
|
|
if($fitHeight <= $height && $fitWidth <= $width) {
|
|
$doesNotFit = false;
|
|
}
|
|
}
|
|
|
|
$zoom = $fitZoom;
|
|
}
|
|
|
|
if(k($params,'maxzoom') && k($params,'maxzoom') < $zoom) {
|
|
$zoom = k($params,'maxzoom');
|
|
}
|
|
|
|
$minZoom = 2;
|
|
if($zoom < $minZoom)
|
|
$zoom = $minZoom;
|
|
|
|
$tileServices = array(
|
|
'streets' => array(
|
|
'https://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer/tile/{Z}/{Y}/{X}'
|
|
),
|
|
'satellite' => array(
|
|
'https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{Z}/{Y}/{X}'
|
|
),
|
|
'hybrid' => array(
|
|
'https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{Z}/{Y}/{X}',
|
|
'https://server.arcgisonline.com/ArcGIS/rest/services/Reference/World_Boundaries_and_Places/MapServer/tile/{Z}/{Y}/{X}'
|
|
),
|
|
'topo' => array(
|
|
'http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tile/{Z}/{Y}/{X}'
|
|
),
|
|
'gray' => array(
|
|
'https://server.arcgisonline.com/ArcGIS/rest/services/Canvas/World_Light_Gray_Base/MapServer/tile/{Z}/{Y}/{X}',
|
|
'https://server.arcgisonline.com/ArcGIS/rest/services/Canvas/World_Light_Gray_Reference/MapServer/tile/{Z}/{Y}/{X}'
|
|
),
|
|
'gray-background' => array(
|
|
'https://server.arcgisonline.com/ArcGIS/rest/services/Canvas/World_Light_Gray_Base/MapServer/tile/{Z}/{Y}/{X}',
|
|
),
|
|
'oceans' => array(
|
|
'https://server.arcgisonline.com/ArcGIS/rest/services/Ocean_Basemap/MapServer/tile/{Z}/{Y}/{X}'
|
|
),
|
|
'national-geographic' => array(
|
|
'https://server.arcgisonline.com/ArcGIS/rest/services/NatGeo_World_Map/MapServer/tile/{Z}/{Y}/{X}'
|
|
),
|
|
'osm' => array(
|
|
'https://tile.openstreetmap.org/{Z}/{X}/{Y}.png'
|
|
),
|
|
'stamen-toner' => array(
|
|
'http://tile.stamen.com/toner/{Z}/{X}/{Y}.png'
|
|
),
|
|
'stamen-toner-background' => array(
|
|
'http://tile.stamen.com/toner-background/{Z}/{X}/{Y}.png'
|
|
),
|
|
'stamen-toner-lite' => array(
|
|
'http://tile.stamen.com/toner-lite/{Z}/{X}/{Y}.png'
|
|
),
|
|
'stamen-terrain' => array(
|
|
'http://tile.stamen.com/terrain/{Z}/{X}/{Y}.png'
|
|
),
|
|
'stamen-terrain-background' => array(
|
|
'http://tile.stamen.com/terrain-background/{Z}/{X}/{Y}.png'
|
|
),
|
|
'stamen-watercolor' => array(
|
|
'http://tile.stamen.com/watercolor/{Z}/{X}/{Y}.png'
|
|
),
|
|
);
|
|
|
|
if(k($params,'basemap') && k($tileServices, k($params,'basemap'))) {
|
|
$tileURL = $tileServices[k($params,'basemap')][0];
|
|
if(array_key_exists(1, $tileServices[k($params,'basemap')]))
|
|
$overlayURL = $tileServices[k($params,'basemap')][1];
|
|
else
|
|
$overlayURL = 0;
|
|
} elseif(k($params, 'basemap') == 'custom' && $is_authenticated) {
|
|
$tileURL = $params['tileurl'];
|
|
$overlayURL = false;
|
|
} else {
|
|
$tileURL = $tileServices['gray'][0];
|
|
$overlayURL = false;
|
|
}
|
|
|
|
function urlForTile($x, $y, $z, $tileURL) {
|
|
return str_replace(array(
|
|
'{X}', '{Y}', '{Z}', '{x}', '{y}', '{z}'
|
|
), array(
|
|
$x, $y, $z, $x, $y, $z
|
|
), $tileURL);
|
|
}
|
|
|
|
|
|
|
|
|
|
$im = imagecreatetruecolor($width, $height);
|
|
|
|
// Find the pixel coordinate of the center of the map
|
|
$center = webmercator\latLngToPixels($latitude, $longitude, $zoom);
|
|
|
|
$leftEdge = $center['x'] - $width/2;
|
|
$topEdge = $center['y'] - $height/2;
|
|
|
|
$tilePos = webmercator\pixelsToTile($center['x'], $center['y']);
|
|
// print_r($tilePos);
|
|
// echo '<br />';
|
|
|
|
$pos = webmercator\positionInTile($center['x'], $center['y']);
|
|
// print_r($pos);
|
|
// echo '<br />';
|
|
|
|
// For the given number of pixels, determine how many tiles are needed in each direction
|
|
$neTile = webmercator\pixelsToTile($center['x'] + $width/2, $center['y'] + $height/2);
|
|
// print_r($neTile);
|
|
// echo '<br />';
|
|
|
|
$swTile = webmercator\pixelsToTile($center['x'] - $width/2, $center['y'] - $height/2);
|
|
// print_r($swTile);
|
|
// echo '<br />';
|
|
|
|
|
|
// Now download all the tiles
|
|
$tiles = array();
|
|
$overlays = array();
|
|
$chs = array();
|
|
$mh = curl_multi_init();
|
|
$numTiles = 0;
|
|
|
|
$urls = array();
|
|
|
|
for($x = $swTile['x']; $x <= $neTile['x']; $x++) {
|
|
$x = (int)$x;
|
|
if(!array_key_exists($x, $tiles)) {
|
|
$tiles[$x] = array();
|
|
$overlays[$x] = array();
|
|
$chs[$x] = array();
|
|
$ochs[$x] = array();
|
|
}
|
|
|
|
for($y = $swTile['y']; $y <= $neTile['y']; $y++) {
|
|
$y = (int)$y;
|
|
$url = urlForTile($x, $y, $zoom, $tileURL);
|
|
$urls[] = $url;
|
|
$tiles[$x][$y] = false;
|
|
$chs[$x][$y] = curl_init($url);
|
|
curl_setopt($chs[$x][$y], CURLOPT_RETURNTRANSFER, TRUE);
|
|
curl_setopt($chs[$x][$y], CURLOPT_FOLLOWLOCATION, true);
|
|
curl_multi_add_handle($mh, $chs[$x][$y]);
|
|
|
|
if($overlayURL) {
|
|
$url = urlForTile($x, $y, $zoom, $overlayURL);
|
|
$overlays[$x][$y] = false;
|
|
$ochs[$x][$y] = curl_init($url);
|
|
curl_setopt($ochs[$x][$y], CURLOPT_RETURNTRANSFER, TRUE);
|
|
curl_setopt($ochs[$x][$y], CURLOPT_FOLLOWLOCATION, TRUE);
|
|
curl_multi_add_handle($mh, $ochs[$x][$y]);
|
|
}
|
|
|
|
$numTiles++;
|
|
}
|
|
}
|
|
|
|
$running = null;
|
|
// Execute the handles. Blocks until all are finished.
|
|
do {
|
|
$mrc = curl_multi_exec($mh, $running);
|
|
} while($running > 0);
|
|
|
|
// In case any of the tiles fail, they will be grey instead of throwing an error
|
|
$blank = imagecreatetruecolor(256, 256);
|
|
$grey = imagecolorallocate($im, 224, 224, 224);
|
|
imagefill($blank, 0,0, $grey);
|
|
|
|
foreach($chs as $x=>$yTiles) {
|
|
foreach($yTiles as $y=>$ch) {
|
|
$content = curl_multi_getcontent($ch);
|
|
$tiles[$x][$y] = @imagecreatefromstring($content);
|
|
if(!$tiles[$x][$y])
|
|
$tiles[$x][$y] = $blank;
|
|
}
|
|
}
|
|
|
|
if($overlayURL) {
|
|
foreach($ochs as $x=>$yTiles) {
|
|
foreach($yTiles as $y=>$ch) {
|
|
$content = curl_multi_getcontent($ch);
|
|
$overlays[$x][$y] = @imagecreatefromstring($content);
|
|
if(!$overlays[$x][$y])
|
|
$overlays[$x][$y] = $blank;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Assemble all the tiles into a new image positioned as appropriate
|
|
foreach($tiles as $x=>$yTiles) {
|
|
foreach($yTiles as $y=>$tile) {
|
|
$x = intval($x);
|
|
$y = intval($y);
|
|
|
|
$ox = (($x - $tilePos['x']) * TILE_SIZE) - $pos['x'] + ($width/2);
|
|
$oy = (($y - $tilePos['y']) * TILE_SIZE) - $pos['y'] + ($height/2);
|
|
|
|
imagecopy($im, $tile, $ox,$oy, 0,0, imagesx($tile),imagesy($tile));
|
|
}
|
|
}
|
|
|
|
if($overlayURL) {
|
|
foreach($overlays as $x=>$yTiles) {
|
|
foreach($yTiles as $y=>$tile) {
|
|
$x = intval($x);
|
|
$y = intval($y);
|
|
|
|
$ox = (($x - $tilePos['x']) * TILE_SIZE) - $pos['x'] + ($width/2);
|
|
$oy = (($y - $tilePos['y']) * TILE_SIZE) - $pos['y'] + ($height/2);
|
|
|
|
imagecopy($im, $tile, $ox,$oy, 0,0, imagesx($tile),imagesy($tile));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if(count($paths)) {
|
|
// Draw the path with ImageMagick because GD sucks as anti-aliased lines
|
|
$mg = new Imagick();
|
|
$mg->newImage($width, $height, new ImagickPixel('none'));
|
|
|
|
$draw = new ImagickDraw();
|
|
|
|
$colors = array();
|
|
foreach($paths as $path) {
|
|
|
|
$draw->setStrokeColor(new ImagickPixel('#'.$path['color']));
|
|
$draw->setStrokeWidth($path['weight']);
|
|
$draw->setFillOpacity(0);
|
|
$draw->setStrokeLineCap(Imagick::LINECAP_ROUND);
|
|
$draw->setStrokeLineJoin(Imagick::LINEJOIN_ROUND);
|
|
|
|
$previous = false;
|
|
foreach($path['path'] as $point) {
|
|
if($previous) {
|
|
$from = webmercator\latLngToPixels($previous[1], $previous[0], $zoom);
|
|
$to = webmercator\latLngToPixels($point[1], $point[0], $zoom);
|
|
|
|
if(k($params, 'bezier')) {
|
|
|
|
$x_dist = abs($from['x'] - $to['x']);
|
|
$y_dist = abs($from['y'] - $to['y']);
|
|
|
|
// If the X distance is longer than Y distance, draw from left to right
|
|
if($x_dist > $y_dist) {
|
|
// Draw from left to right
|
|
if($from['x'] > $to['x']) {
|
|
$tmpFrom = $from;
|
|
$tmpTo = $to;
|
|
$from = $tmpTo;
|
|
$to = $tmpFrom;
|
|
unset($tmp);
|
|
}
|
|
} else {
|
|
// Draw from top to bottom
|
|
if($from['y'] > $to['y']) {
|
|
$tmpFrom = $from;
|
|
$tmpTo = $to;
|
|
$from = $tmpTo;
|
|
$to = $tmpFrom;
|
|
unset($tmp);
|
|
}
|
|
}
|
|
|
|
$angle = 1 * k($params, 'bezier');
|
|
|
|
// Midpoint between the two ends
|
|
$M = [
|
|
'x' => ($from['x'] + $to['x']) / 2,
|
|
'y' => ($from['y'] + $to['y']) / 2
|
|
];
|
|
|
|
// Derived from http://math.stackexchange.com/a/383648 and http://www.wolframalpha.com/input/?i=triangle+%5B1,1%5D+%5B5,2%5D+%5B1-1%2Fsqrt(3),1%2B4%2Fsqrt(3)%5D
|
|
|
|
// See for details
|
|
|
|
$A = $from;
|
|
$B = $to;
|
|
|
|
$P = [
|
|
'x' => ($M['x']) - (($A['y']-$M['y']) * tan(deg2rad($angle))),
|
|
'y' => ($M['y']) + (($A['x']-$M['x']) * tan(deg2rad($angle)))
|
|
];
|
|
|
|
$draw->pathStart();
|
|
$draw->pathMoveToAbsolute($A['x']-$leftEdge,$A['y']-$topEdge);
|
|
$draw->pathCurveToQuadraticBezierAbsolute(
|
|
$P['x']-$leftEdge, $P['y']-$topEdge,
|
|
$B['x']-$leftEdge, $B['y']-$topEdge
|
|
);
|
|
$draw->pathFinish();
|
|
} else {
|
|
$draw->line($from['x']-$leftEdge,$from['y']-$topEdge, $to['x']-$leftEdge,$to['y']-$topEdge);
|
|
}
|
|
}
|
|
$previous = $point;
|
|
}
|
|
}
|
|
|
|
$mg->drawImage($draw);
|
|
$mg->setImageFormat("png");
|
|
|
|
$pathImg = imagecreatefromstring($mg);
|
|
imagecopy($im, $pathImg, 0,0, 0,0, $width,$height);
|
|
}
|
|
|
|
|
|
// Add markers
|
|
foreach($markers as $marker) {
|
|
// Icons that have 'dot' in the name do not have a shadow and center vertically and horizontally
|
|
$shadow = !preg_match('/dot/', $marker['icon']);
|
|
|
|
if($width < 120 || $height < 120) {
|
|
$shrinkFactor = 1.5;
|
|
} else {
|
|
$shrinkFactor = 1;
|
|
}
|
|
|
|
// Icons with a shadow are centered at the bottom middle pixel.
|
|
// Icons with no shadow are centered in the center pixel.
|
|
|
|
$px = webmercator\latLngToPixels($marker['lat'], $marker['lng'], $zoom);
|
|
$pos = array(
|
|
'x' => $px['x'] - $leftEdge,
|
|
'y' => $px['y'] - $topEdge
|
|
);
|
|
|
|
if($shrinkFactor > 1) {
|
|
$markerImg = imagecreatetruecolor(round(imagesx($marker['iconImg'])/$shrinkFactor), round(imagesy($marker['iconImg'])/$shrinkFactor));
|
|
imagealphablending($markerImg, true);
|
|
$color = imagecolorallocatealpha($markerImg, 0, 0, 0, 127);
|
|
imagefill($markerImg, 0,0, $color);
|
|
imagecopyresampled($markerImg, $marker['iconImg'], 0,0, 0,0, imagesx($markerImg),imagesy($markerImg), imagesx($marker['iconImg']),imagesy($marker['iconImg']));
|
|
} else {
|
|
$markerImg = $marker['iconImg'];
|
|
}
|
|
|
|
if($shadow) {
|
|
$iconPos = array(
|
|
'x' => $pos['x'] - round(imagesx($markerImg)/2),
|
|
'y' => $pos['y'] - imagesy($markerImg)
|
|
);
|
|
} else {
|
|
$iconPos = array(
|
|
'x' => $pos['x'] - round(imagesx($markerImg)/2),
|
|
'y' => $pos['y'] - round(imagesy($markerImg)/2)
|
|
);
|
|
}
|
|
|
|
imagecopy($im, $markerImg, $iconPos['x'],$iconPos['y'], 0,0, imagesx($markerImg),imagesy($markerImg));
|
|
}
|
|
|
|
|
|
if(k($params,'attribution') == 'mapbox') {
|
|
$logo = imagecreatefrompng($assetPath . '/mapbox-attribution.png');
|
|
imagecopy($im, $logo, $width-imagesx($logo), $height-imagesy($logo), 0,0, imagesx($logo),imagesy($logo));
|
|
} elseif(k($params,'attribution') == 'mapbox-small') {
|
|
$logo = imagecreatefrompng($assetPath . '/mapbox-attribution.png');
|
|
$shrinkFactor = 2;
|
|
imagecopyresampled($im, $logo, $width-round(imagesx($logo)/$shrinkFactor), $height-round(imagesy($logo)/$shrinkFactor), 0,0, round(imagesx($logo)/$shrinkFactor),round(imagesy($logo)/$shrinkFactor), imagesx($logo),imagesy($logo));
|
|
|
|
} elseif(k($params,'attribution') != 'none') {
|
|
$logo = imagecreatefrompng($assetPath . '/powered-by-esri.png');
|
|
|
|
// Shrink the logo if the image is small
|
|
if($width > 120) {
|
|
if($width < 220 || k($params, 'attribution') == 'small') {
|
|
$shrinkFactor = 2;
|
|
imagecopyresampled($im, $logo, $width-round(imagesx($logo)/$shrinkFactor)-4, $height-round(imagesy($logo)/$shrinkFactor)-4, 0,0, round(imagesx($logo)/$shrinkFactor),round(imagesy($logo)/$shrinkFactor), imagesx($logo),imagesy($logo));
|
|
} else {
|
|
imagecopy($im, $logo, $width-imagesx($logo)-4, $height-imagesy($logo)-4, 0,0, imagesx($logo),imagesy($logo));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
#header('Cache-Control: max-age=' . (60*60*24*30) . ', public');
|
|
#header('X-Tiles-Downloaded: ' . $numTiles);
|
|
|
|
// TODO: add caching
|
|
$fmt = k($params,'format', 'png');
|
|
switch($fmt) {
|
|
case "jpg":
|
|
case "jpeg":
|
|
header('Content-type: image/jpg');
|
|
$quality = k($params, 'quality', 75);
|
|
imagejpeg($im, $filename, $quality);
|
|
break;
|
|
case "png":
|
|
default:
|
|
header('Content-type: image/png');
|
|
imagepng($im, $filename);
|
|
break;
|
|
}
|
|
imagedestroy($im);
|
|
|
|
/**
|
|
* http://msdn.microsoft.com/en-us/library/bb259689.aspx
|
|
* http://derickrethans.nl/php-mapping.html
|
|
*/
|
|
}
|
|
|
|
function k($a, $k, $default=false) {
|
|
if(is_array($a) && array_key_exists($k, $a) && $a[$k])
|
|
return $a[$k];
|
|
elseif(is_object($a) && property_exists($a, $k) && $a->$k)
|
|
return $a->$k;
|
|
else
|
|
return $default;
|
|
}
|