/**
* load all tiles
*
* @param array $leftUpCorner
* @param array $rightDownCorner
* @return array
*/
protected function _getTiles($leftUpCorner, $rightDownCorner)
{
$tiles = array();
$leftUpTilesNumber = $this->_tileSource->getTileNumbersFromCoordinates($leftUpCorner['lon'], $leftUpCorner['lat'], $this->_worldMap->getZoom());
$rightDownTilesNumber = $this->_tileSource->getTileNumbersFromCoordinates($rightDownCorner['lon'], $rightDownCorner['lat'], $this->_worldMap->getZoom());
$tilesGetter = new TilesGetter($leftUpTilesNumber, $rightDownTilesNumber, $this->_tileSource, $this->_worldMap);
$tilesGetter->startLoading();
while (!$tilesGetter->isLoaded()) {
//wating for finishing loading
}
return $tilesGetter->getTiles();
}
/**
* get coordinates of the point in pixels, left up corner of map has coordiantes: 0 px 0 px
*
* @param float $lon
* @param float $lat
* @return array
*/
public function getPixelPointFromCoordinates($lon, $lat)
{
$leftUp = $this->getLeftUpCorner();
$leftUpPointInPixel = $this->_worldMap->getPixelXY($leftUp['lon'], $leftUp['lat']);
$pointInPixel = $this->_worldMap->getPixelXY($lon, $lat);
return array('x' => $pointInPixel['x'] - $leftUpPointInPixel['x'], 'y' => $pointInPixel['y'] - $leftUpPointInPixel['y']);
}
private function _createTileGettersTable()
{
$numberOfTilesToLoad = 0;
for ($y = $this->_leftUpTileNumbers['y']; $y <= $this->_rightDownTileNumbers['y']; $y++) {
$row = array();
$x = $this->_leftUpTileNumbers['x'];
while (true) {
$tileGetter = new StandardTileGetter($this->_tileSource, $x, $y, $this->_worldMap->getZoom());
$row[] = $tileGetter;
$numberOfTilesToLoad++;
if ($x == $this->_rightDownTileNumbers['x']) {
break;
}
$x++;
}
$this->_tileGetters[] = $row;
}
if ($numberOfTilesToLoad > self::$limitOfTiles) {
throw new WrongMapRequestDataException('Too many tiles to load');
}
}
/**
* create world for given latitude distance between two given latitudes and given height of the map
*
* @param float $lat
* @param float $lat2
* @param int $height
* @return WorldMap
*/
public function createProperWordlFromHeight($lat, $lat2, $height)
{
$maxZoom = $this->_tileSource->getMaxZoom();
for ($i = $this->_tileSource->getMinZoom(); $i <= $maxZoom; $i++) {
$world = new WorldMap($i, $this->_tileSource);
$distance = $world->getPixelDistance(0, $lat, 0, $lat2);
if ($width > $distance['y']) {
return $world;
}
}
return $world;
}
protected function _run()
{
$this->_tile = $this->_tileSource->getTile($this->_tileNumbers['x'], $this->_tileNumbers['y'], $this->_worldMap->getZoom());
$this->_isLoaded = true;
}
