Пример #1
0
    } else {
        set_time_limit(0);
        $imgWidth = G_TILE_SIZE;
        $imgHeight = G_TILE_SIZE;
        $image = imagecreate($imgWidth, $imgHeight);
        // Allocate the color map
        InterpolateRGB($colorScale, RGB(0, 0, 110), RGB(0, 0, 110), 0, 255);
        InterpolateRGB($colorScale, RGB(0, 100, 0), RGB(180, 180, 50), 1, 60);
        InterpolateRGB($colorScale, RGB(180, 180, 50), RGB(150, 110, 50), 60, 100);
        InterpolateRGB($colorScale, RGB(150, 110, 50), RGB(150, 150, 150), 100, 150);
        InterpolateRGB($colorScale, RGB(150, 150, 150), RGB(255, 255, 255), 150, 200);
        InterpolateRGB($colorScale, RGB(255, 255, 255), RGB(255, 255, 255), 200, 253);
        InterpolateRGB($colorScale, RGB(0, 0, 0), RGB(0, 0, 0), 254, 255);
        AllocateColorMap($image, $colorScale, $cMap);
        MakeTile($image, $x, $y, $z);
        $cache->set(PngToString($image), $id);
        header('Content-type: image/png');
        imagepng($image);
        imagedestroy($image);
    }
} else {
    header('Content-type: text/plain');
    echo 'Invalid URL';
}
// Tile handling
function MakeTile($image, $x, $y, $zoom)
{
    $proj = new Mercator($zoom, G_TILE_SIZE);
    $lonL = $proj->Lon($x * G_TILE_SIZE);
    $lonR = $proj->Lon(($x + 1) * G_TILE_SIZE);
    $lonBound[0] = $lonL;
Пример #2
0
 private function makeTile()
 {
     set_time_limit(0);
     $dstImg = imagecreatetruecolor(256, 256);
     $lats[0] = $latB = $this->proj->Lat($this->y + 1);
     $latT = $this->proj->Lat($this->y);
     foreach ($this->latLimits as $lat) {
         if ($lat > $latB && $lat < $latT) {
             $lats[] = $lat;
         }
     }
     $lats[] = $latT;
     $lons[0] = $lonL = $this->proj->Lon($this->x);
     $lonR = $this->proj->Lon($this->x + 1);
     foreach ($this->lonLimits as $lon) {
         if ($lon > $lonL && $lon < $lonR) {
             $lons[] = $lon;
         }
     }
     $lons[] = $lonR;
     for ($x = 0; $x < count($lons) - 1; $x++) {
         for ($y = 0; $y < count($lats) - 1; $y++) {
             $this->makeBlock($dstImg, $lats, $y, $lons, $x);
         }
     }
     return PngToString($dstImg);
 }