+ /**
+ * Return the multi image
+ *
+ * Generate multi image in jpeg format or load it from cache
+ *
+ * @param string $pathInfo The path info
+ * @param string $caption The image caption
+ * @param int $updated The updated timestamp
+ * @param float $latitude The latitude
+ * @param float $longitude The longitude
+ * @param array $locations The latitude array
+ * @param int $zoom The zoom
+ * @param int $width The width
+ * @param int $height The height
+ * @return array The image array
+ */
+ public function getMultiImage(string $pathInfo, string $caption, int $updated, float $latitude, float $longitude, array $locations, int $zoom = 18, int $width = 1280, int $height = 1280): array {
+ //Set path file
+ $path = $this->path.$pathInfo.'.jpeg';
+
+ //Set min file
+ $min = $this->path.$pathInfo.'.min.jpeg';
+
+ //Without existing path
+ if (!is_dir($dir = dirname($path))) {
+ //Create filesystem object
+ $filesystem = new Filesystem();
+
+ try {
+ //Create path
+ //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
+ $filesystem->mkdir($dir, 0775);
+ } catch (IOExceptionInterface $e) {
+ //Throw error
+ throw new \Exception(sprintf('Output path "%s" do not exists and unable to create it', $dir), 0, $e);
+ }
+ }
+
+ //With path and min up to date file
+ if (is_file($path) && is_file($min) && ($mtime = stat($path)['mtime']) && ($mintime = stat($min)['mtime']) && $mtime >= $updated && $mintime >= $updated) {
+ //Return image data
+ return [
+ 'link' => $this->url.'/'.$mtime.$pathInfo.'.jpeg',
+ 'min' => $this->url.'/'.$mintime.$pathInfo.'.min.jpeg',
+ 'caption' => $caption,
+ 'height' => $height / 2,
+ 'width' => $width / 2
+ ];
+ }
+
+ //Create image instance
+ $image = new \Imagick();
+
+ //Add new image
+ $image->newImage($width, $height, new \ImagickPixel('transparent'), 'jpeg');
+
+ //Create tile instance
+ $tile = new \Imagick();
+
+ //Init context
+ $ctx = stream_context_create(
+ [
+ 'http' => [
+ #'header' => ['Referer: https://www.openstreetmap.org/'],
+ 'max_redirects' => 5,
+ 'timeout' => (int)ini_get('default_socket_timeout'),
+ #'user_agent' => 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36',
+ 'user_agent' => (string)ini_get('user_agent')?:'rapsys_air/2.0.0',
+ ]
+ ]
+ );
+
+ //Get tile xy
+ $tileX = floor($centerX = $this->longitudeToX($longitude, $zoom));
+ $tileY = floor($centerY = $this->latitudeToY($latitude, $zoom));
+
+ //Calculate start xy
+ //XXX: we draw every tile starting beween -($width / 2) and 0
+ $startX = floor(($tileX * self::tz - $width) / self::tz);
+ //XXX: we draw every tile starting beween -($height / 2) and 0
+ $startY = floor(($tileY * self::tz - $height) / self::tz);
+
+ //Calculate end xy
+ //TODO: this seems stupid, check if we may just divide $width / 2 here !!!
+ //XXX: we draw every tile starting beween $width + ($width / 2)
+ $endX = ceil(($tileX * self::tz + $width) / self::tz);
+ //XXX: we draw every tile starting beween $width + ($width / 2)
+ $endY = ceil(($tileY * self::tz + $height) / self::tz);
+
+ for($x = $startX; $x <= $endX; $x++) {
+ for($y = $startY; $y <= $endY; $y++) {
+ //Set cache path
+ $cache = $this->cache.'/'.$zoom.'/'.$x.'/'.$y.'.png';
+
+ //Without cache path
+ if (!is_dir($dir = dirname($cache))) {
+ //Create filesystem object
+ $filesystem = new Filesystem();
+
+ try {
+ //Create path
+ //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
+ $filesystem->mkdir($dir, 0775);
+ } catch (IOExceptionInterface $e) {
+ //Throw error
+ throw new \Exception(sprintf('Output directory "%s" do not exists and unable to create it', $dir), 0, $e);
+ }
+ }
+
+ //Without cache image
+ if (!is_file($cache)) {
+ //Set tile url
+ $tileUri = str_replace(['{Z}', '{X}', '{Y}'], [$zoom, $x, $y], $this->servers[$this->server]);
+
+ //Store tile in cache
+ file_put_contents($cache, file_get_contents($tileUri, false, $ctx));
+ }
+
+ //Set dest x
+ $destX = intval(floor(($width / 2) - self::tz * ($centerX - $x)));
+
+ //Set dest y
+ $destY = intval(floor(($height / 2) - self::tz * ($centerY - $y)));
+
+ //Read tile from cache
+ $tile->readImage($cache);
+
+ //Compose image
+ $image->compositeImage($tile, \Imagick::COMPOSITE_OVER, $destX, $destY);
+
+ //Clear tile
+ $tile->clear();
+ }
+ }
+
+ //Add circle
+ //XXX: see https://www.php.net/manual/fr/imagick.examples-1.php#example-3916
+ $draw = new \ImagickDraw();
+
+ //Set text alignment
+ $draw->setTextAlignment(\Imagick::ALIGN_CENTER);
+
+ //Set text antialias
+ $draw->setTextAntialias(true);
+
+ //Set stroke antialias
+ $draw->setStrokeAntialias(true);
+
+ //Iterate on locations
+ foreach($locations as $k => $location) {
+ //Set dest x
+ $destX = intval(floor(($width / 2) - self::tz * ($centerX - $this->longitudeToX($location['longitude'], $zoom))));
+
+ //Set dest y
+ $destY = intval(floor(($height / 2) - self::tz * ($centerY - $this->latitudeToY($location['latitude'], $zoom))));
+
+ //Set fill color
+ $draw->setFillColor('#cff');
+
+ //Set font size
+ $draw->setFontSize(20);
+
+ //Set stroke color
+ $draw->setStrokeColor('#00c3f9');
+
+ //Set circle radius
+ $radius = 5;
+
+ //Set stroke
+ $stroke = 2;
+
+ //With matching position
+ if ($location['latitude'] === $latitude && $location['longitude'] == $longitude) {
+ //Set fill color
+ $draw->setFillColor('#c3c3f9');
+
+ //Set font size
+ $draw->setFontSize(30);
+
+ //Set stroke color
+ $draw->setStrokeColor('#3333c3');
+
+ //Set circle radius
+ $radius = 8;
+
+ //Set stroke
+ $stroke = 4;
+ }
+
+ //Set stroke width
+ $draw->setStrokeWidth($stroke);
+
+ //Draw circle
+ $draw->circle($destX, $destY - $radius, $destX + $radius * 2, $destY + $radius);
+
+ //Set fill color
+ $draw->setFillColor($draw->getStrokeColor());
+
+ //Set stroke width
+ $draw->setStrokeWidth($stroke / 4);
+
+ //Get font metrics
+ $metrics = $image->queryFontMetrics($draw, strval($location['id']));
+
+ //Add annotation
+ $draw->annotation($destX, $destY - $metrics['descender'] / 3, strval($location['id']));
+ }
+
+ //Draw on image
+ $image->drawImage($draw);
+
+ //Strip image exif data and properties
+ $image->stripImage();
+
+ //Add latitude
+ //XXX: not supported by imagick :'(
+ $image->setImageProperty('exif:GPSLatitude', $this->latitudeToSexagesimal($latitude));
+
+ //Add longitude
+ //XXX: not supported by imagick :'(
+ $image->setImageProperty('exif:GPSLongitude', $this->longitudeToSexagesimal($longitude));
+
+ //Add description
+ //XXX: not supported by imagick :'(
+ $image->setImageProperty('exif:Description', $caption);
+
+ //Set progressive jpeg
+ $image->setInterlaceScheme(\Imagick::INTERLACE_PLANE);
+
+ //Save image
+ if (!$image->writeImage($path)) {
+ //Throw error
+ throw new \Exception(sprintf('Unable to write image "%s"', $path));
+ }
+
+ //Crop using aspect ratio
+ $image->cropThumbnailImage($width / 2, $height / 2);
+
+ //Set compression quality
+ $image->setImageCompressionQuality(70);
+
+ //Save min image
+ if (!$image->writeImage($min)) {
+ //Throw error
+ throw new \Exception(sprintf('Unable to write image "%s"', $min));
+ }
+
+ //Return image data
+ return [
+ 'link' => $this->url.'/'.stat($path)['mtime'].$pathInfo.'.jpeg',
+ 'min' => $this->url.'/'.stat($min)['mtime'].$pathInfo.'.min.jpeg',
+ 'caption' => $caption,
+ 'height' => $height / 2,
+ 'width' => $width / 2
+ ];
+ }
+
+ /**
+ * Return multi zoom
+ *
+ * Compute multi image optimal zoom
+ *
+ * @param float $latitude The latitude
+ * @param float $longitude The longitude
+ * @param array $locations The latitude array
+ * @param int $zoom The zoom
+ * @param int $width The width
+ * @param int $height The height
+ * @return int The zoom
+ */
+ public function getMultiZoom(float $latitude, float $longitude, array $locations, int $zoom = 18, int $width = 1280, int $height = 1280): int {
+ //Iterate on each zoom
+ for ($i = $zoom; $i >= 1; $i--) {
+ //Get tile xy
+ $tileX = floor($this->longitudeToX($longitude, $i));
+ $tileY = floor($this->latitudeToY($latitude, $i));
+
+ //Calculate start xy
+ $startX = floor(($tileX * self::tz - $width / 2) / self::tz);
+ $startY = floor(($tileY * self::tz - $height / 2) / self::tz);
+
+ //Calculate end xy
+ $endX = ceil(($tileX * self::tz + $width / 2) / self::tz);
+ $endY = ceil(($tileY * self::tz + $height / 2) / self::tz);
+
+ //Iterate on each locations
+ foreach($locations as $k => $location) {
+ //Set dest x
+ $destX = floor($this->longitudeToX($location['longitude'], $i));
+
+ //With outside point
+ if ($startX >= $destX || $endX <= $destX) {
+ //Skip zoom
+ continue(2);
+ }
+
+ //Set dest y
+ $destY = floor($this->latitudeToY($location['latitude'], $i));
+
+ //With outside point
+ if ($startY >= $destY || $endY <= $destY) {
+ //Skip zoom
+ continue(2);
+ }
+ }
+
+ //Found zoom
+ break;
+ }
+
+ //Return zoom
+ return $i;
+ }
+
Rapsys Git / packbundle / commitdiff