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staticmaplite
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Fix loop map issue, normalize the in request to stay in the api's range

This commit is contained in:
XwZ 2015-07-09 02:06:45 +02:00
parent 8dab3826c3
commit d55bdab24e
1 changed files with 8 additions and 2 deletions
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10
staticmap.php
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@ -33,6 +33,7 @@ Class staticMapLite
protected $maxWidth = 1024;
protected $maxHeight = 1024;
protected $maxtiles = 0;
protected $tileSize = 256;
protected $tileSrcUrl = array('mapnik' => 'http://tile.openstreetmap.org/{Z}/{X}/{Y}.png',
@ -182,6 +183,10 @@ Class staticMapLite
$this->offsetY = floor((floor($this->centerY) - $this->centerY) * $this->tileSize);
}
public function normalizeTileCoord($position){
return ($position < 0) ? $this->maxtiles + $position : $position%$this->maxtiles;
}
public function createBaseMap()
{
$this->image = imagecreatetruecolor($this->width, $this->height);
@ -195,10 +200,11 @@ Class staticMapLite
$this->offsetY += floor($this->height / 2);
$this->offsetX += floor($startX - floor($this->centerX)) * $this->tileSize;
$this->offsetY += floor($startY - floor($this->centerY)) * $this->tileSize;
$this->maxtiles = sqrt(pow(2,(2*$this->zoom)));
for ($x = $startX; $x <= $endX; $x++) {
for ($y = $startY; $y <= $endY; $y++) {
$url = str_replace(array('{Z}', '{X}', '{Y}'), array($this->zoom, $x, $y), $this->tileSrcUrl[$this->maptype]);
$url = str_replace(array('{Z}', '{X}', '{Y}'), array($this->zoom, $this->normalizeTileCoord($x), $y), $this->tileSrcUrl[$this->maptype]);
$tileData = $this->fetchTile($url);
if ($tileData) {
$tileImage = imagecreatefromstring($tileData);