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Computation of matrix size

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This commit is contained in:
Dalibor Janák 2016-02-18 16:49:48 +01:00
parent 27fc9a73ca
commit a2162eeb99
1 changed files with 31 additions and 31 deletions
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62
tileserver.php
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@ -734,32 +734,35 @@ class Wmts extends Server {
* @return Object
*/
public function parseTileMatrix($layer, $tileMatrix){
for($i = 0; $i < count($tileMatrix); $i++){
if(!isset($tileMatrix[$i]['id'])){
$tileMatrix[$i]['id'] = (string) $i;
}
if (!isset($tileMatrix[$i]['extent']) && isset($layer['extent'])) {
$tileMatrix[$i]['extent'] = $layer['extent'];
}
//TODO: Compute from $ŧhis->tilesOfExtent()
if (!isset($tileMatrix[$i]['matrix_size'])) {
$tileMatrix[$i]['matrix_size'] = array(pow(2, $i), pow(2, $i));
$tileExtent = $this->tilesOfExtent(
$tileMatrix[$i]['extent'],
$tileMatrix[$i]['origin'],
$tileMatrix[$i]['pixel_size'],
$tileMatrix[$i]['tile_size']
);
$tileMatrix[$i]['matrix_size'] = array(
$tileExtent[1] + 1,
$tileExtent[2] + 1
);
}
if(!isset($tileMatrix[$i]['origin']) && isset($tileMatrix[$i]['extent'])){
$tileMatrix[$i]['origin'] = array(
$tileMatrix[$i]['extent'][0], $tileMatrix[$i]['extent'][4]
);
}
if(!isset($tileMatrix[$i]['scale_denominator'])){
$tileMatrix[$i]['scale_denominator'] = count($tileMatrix) - $i;
}
if(!isset($tileMatrix[$i]['tile_size'])){
$tileSize = 256 * (int) $layer['scale'];
$tileMatrix[$i]['tile_size'] = array($tileSize, $tileSize);
@ -778,26 +781,23 @@ class Wmts extends Server {
* @return array
*/
public function tilesOfExtent($extent, $origin, $pixel_size, $tile_size) {
//$minx, $miny, $maxx, $maxy = $extent;
function minsample($x, $f){
return $f > 0 ? floor($x / $f) : ceil(($x / $f) - 1);
}
function maxsample($x, $f){
return $f < 0 ? floor($x / $f) : ceil(($x / $f) - 1);
}
$tiles = array();
$tiles[] = minsample($extent[0] - $origin[0], $pixel_size[0] * $tile_size[0]);
$tiles[] = minsample($extent[1] - $origin[1], $pixel_size[1] * $tile_size[1]);
$tiles[] = maxsample($extent[2] - $origin[0], $pixel_size[0] * $tile_size[0]);
$tiles[] = maxsample($extent[3] - $origin[1], $pixel_size[1] * $tile_size[1]);
$tiles = array(
$this->minsample($extent[0] - $origin[0], $pixel_size[0] * $tile_size[0]),
$this->minsample($extent[1] - $origin[1], $pixel_size[1] * $tile_size[1]),
$this->maxsample($extent[2] - $origin[0], $pixel_size[0] * $tile_size[0]),
$this->maxsample($extent[3] - $origin[1], $pixel_size[1] * $tile_size[1]),
);
return $tiles;
}
private function minsample($x, $f){
return $f > 0 ? floor($x / $f) : ceil(($x / $f) - 1);
}
private function maxsample($x, $f){
return $f < 0 ? floor($x / $f) : ceil(($x / $f) - 1);
}
/**
* Default TileMetrixSet for Pseudo Mercator projection 3857
* @return string TileMatrixSet xml
@ -895,11 +895,11 @@ class Wmts extends Server {
//if TileMatrixSet is provided validate it
for($i = 0; $i < count($layers); $i++){
if($layers[$i]['profile'] == 'custom' || isset($layers[$i]['tile_matrix'])){
if($layers[$i]['profile'] == 'custom'){
$layers[$i]['tile_matrix'] = $this->parseTileMatrix(
$layers[$i],
$layers[$i]['tile_matrix']
);
$layers[$i],
$layers[$i]['tile_matrix']
);
}
}
@ -975,7 +975,7 @@ class Wmts extends Server {
$tileMatrixSet = 'WGS84';
}elseif ($m['profile'] == 'custom') {
$crs = explode(':', $m['crs']);
$tileMatrixSet = 'custom' . $crs[1];
$tileMatrixSet = 'custom' . $crs[1] . $m['basename'];
$customtileMatrixSets .= $this->getTileMatrixSet(
$tileMatrixSet,
$m['tile_matrix'],