/**
* @return int
*/
private function getBoundsZoom()
{
$zoom = $this->autoMaxZoom;
// area in pixels that markers/polygons occupy
$w = $this->bounds->getWidth();
$h = $this->bounds->getHeight();
// map image size in pixels
while ($zoom > 1) {
$scale = $this->proj->scale($zoom);
$newW = (int) ($w * $scale + $this->hMargin);
$newH = (int) ($h * $scale + $this->vMargin);
if ($newW < $this->width && $newH < $this->height) {
break;
}
$zoom--;
}
return $zoom;
}
/**
* Translate point (pyr) from src (fyros)
* to dst (fyros in world map)
*
* All arrays are in [ [left,bottom], [right,top] ]
*
* @param Point $point
* @param Bounds $src
* @param Bounds $dst
*
* @return Point
*/
protected function translate(Point $point, Bounds $src, Bounds $dst)
{
$px = ($point->x - $src->left) / $src->getWidth();
$py = ($point->y - $src->top) / $src->getHeight();
$left = $dst->left + $px * $dst->getWidth();
$top = $dst->bottom - $py * $dst->getHeight();
return new Point($left, $top);
}
/**
* @param Point $point
* @param Bounds $bbox
*
* @return Bounds
*/
protected function getTileBounds(Point $point, Bounds $bbox)
{
$hw = $bbox->getWidth() / 2;
$hh = $bbox->getHeight();
$px1 = $point->x - $hw;
$py1 = $point->y - $hh;
$px2 = $point->x + $hw;
$py2 = $point->y + $hh;
$this->debug(" txtbox [{$px1}, {$py1}, {$px2}, {$py2}] -> ");
$tx1 = floor($px1 / TileStorageInterface::TILE_SIZE);
$tx2 = floor($px2 / TileStorageInterface::TILE_SIZE);
$ty1 = floor($py1 / TileStorageInterface::TILE_SIZE);
$ty2 = floor($py2 / TileStorageInterface::TILE_SIZE);
$this->debug(" tile [{$tx1}, {$ty1}], [{$tx2}, {$ty2}]");
//$xTiles = ($tx2 - $tx1) + 1;
//$yTiles = ($ty2 - $ty1) + 1;
//$this->debug(" nb tiles ($xTiles, $yTiles)\n");
//return [$tx1, $ty1, $xTiles, $yTiles];
return new Bounds($tx1, $ty2, $tx2, $ty1);
}
