/**
* Generate map tiles
*
* @param array $maps [ id => map.png ]
* @param array $zoomRange [ min, max]
*/
public function generate(array $maps, array $zoomRange)
{
foreach ($maps as $id => $mapImage) {
// load map file
$mapFilename = $this->mapsDirectory . '/' . $mapImage;
if (!file_exists($mapFilename)) {
$this->info("- map file '{$id}:{$mapFilename}' not found, skip\n");
continue;
}
// find out map coordinates for base zoom level
$zoneBounds = $this->projWorld->getZoneBounds($id);
$this->info("+ loading map {$mapFilename}\n");
$mapImage = $this->loadImage($mapFilename);
$mapImageWidth = imagesx($mapImage);
$mapImageHeight = imagesy($mapImage);
// map image coords at base zoom
$zoneLeft = $zoneBounds->left;
$zoneBottom = $zoneBounds->bottom;
$zoneRight = $zoneBounds->right;
$zoneTop = $zoneBounds->top;
$this->info(">> map size ({$mapImageWidth}, {$mapImageHeight}), position ({$zoneLeft}, {$zoneTop}, {$zoneRight}, {$zoneBottom})\n");
$mapImageWidth = imagesx($mapImage);
$mapImageHeight = imagesy($mapImage);
for ($zoom = $zoomRange[0]; $zoom <= $zoomRange[1]; $zoom++) {
$this->mapCutter($mapImage, $zoom, $mapImageWidth, $mapImageHeight, $zoneBounds);
}
imagedestroy($mapImage);
}
}
public function testGetInnerZoneBounds()
{
$expected = $this->worldProj['place_pyr'];
$inner = $this->proj->getZoneBounds('place_pyr');
$result = array(array($inner->left, $inner->bottom), array($inner->right, $inner->top));
$this->assertEquals($expected, $result);
}
/**
* @return resource
* @throws \RuntimeException
*/
protected function _background()
{
$canvas = imagecreatetruecolor($this->width, $this->height);
if ($canvas === false) {
throw new \RuntimeException("Unable to create output image at size [{$this->width}x{$this->height}]");
}
if ($this->center === null) {
if ($this->bounds === null) {
// no features on map, so take center point in world zone
$world = $this->proj->getZoneBounds('world');
$this->bounds = clone $world;
}
$cx = ($this->bounds->left + $this->bounds->right) / 2;
$cy = ($this->bounds->top + $this->bounds->bottom) / 2;
$this->center = new Point($cx, $cy);
} else {
// this comes in handy with automatic zoom
$this->extend($this->center);
}
if ($this->zoom === null) {
$this->zoom = $this->getBoundsZoom();
}
//calculate viewport
$scale = $this->getZoomScale();
// calculate viewport
$halfWidth = $this->width / 2;
$halfHeight = $this->height / 2;
// absolute coords for viewport
$vpLeft = $this->center->x * $scale - $halfWidth;
$vpTop = $this->center->y * $scale - $halfHeight;
$vpRight = $vpLeft + $this->width;
$vpBottom = $vpTop + $this->height;
$this->viewport = new Bounds($vpLeft, $vpBottom, $vpRight, $vpTop);
$this->draw($canvas);
return $canvas;
}
