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fix polygon simplification in reverse results

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polygon_threshold has never really worked for reverse.
This commit is contained in:
Sarah Hoffmann
2023-03-09 20:24:07 +01:00
parent 3f2296e3ea
commit b730d286ad
1 changed files with 10 additions and 13 deletions
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23
lib-php/PlaceLookup.php
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@@ -524,12 +524,7 @@ class PlaceLookup
// Get the bounding box and outline polygon
$sSQL = 'select place_id,0 as numfeatures,st_area(geometry) as area,';
if ($fLonReverse != null && $fLatReverse != null) {
$sSQL .= ' ST_Y(closest_point) as centrelat,';
$sSQL .= ' ST_X(closest_point) as centrelon,';
} else {
$sSQL .= ' ST_Y(centroid) as centrelat, ST_X(centroid) as centrelon,';
}
$sSQL .= ' ST_Y(centroid) as centrelat, ST_X(centroid) as centrelon,';
$sSQL .= ' ST_YMin(geometry) as minlat,ST_YMax(geometry) as maxlat,';
$sSQL .= ' ST_XMin(geometry) as minlon,ST_XMax(geometry) as maxlon';
if ($this->bIncludePolygonAsGeoJSON) {
@@ -544,19 +539,21 @@ class PlaceLookup
if ($this->bIncludePolygonAsText) {
$sSQL .= ',ST_AsText(geometry) as astext';
}
$sSQL .= ' FROM (SELECT place_id';
if ($fLonReverse != null && $fLatReverse != null) {
$sFrom = ' from (SELECT * , CASE WHEN (class = \'highway\') AND (ST_GeometryType(geometry) = \'ST_LineString\') THEN ';
$sFrom .=' ST_ClosestPoint(geometry, ST_SetSRID(ST_Point('.$fLatReverse.','.$fLonReverse.'),4326))';
$sFrom .=' ELSE centroid END AS closest_point';
$sFrom .= ' from placex where place_id = '.$iPlaceID.') as plx';
$sSQL .= ',CASE WHEN (class = \'highway\') AND (ST_GeometryType(geometry) = \'ST_LineString\') THEN ';
$sSQL .=' ST_ClosestPoint(geometry, ST_SetSRID(ST_Point('.$fLatReverse.','.$fLonReverse.'),4326))';
$sSQL .=' ELSE centroid END AS centroid';
} else {
$sFrom = ' from placex where place_id = '.$iPlaceID;
$sSQL .= ',centroid';
}
if ($this->fPolygonSimplificationThreshold > 0) {
$sSQL .= ' from (select place_id,centroid,ST_SimplifyPreserveTopology(geometry,'.$this->fPolygonSimplificationThreshold.') as geometry'.$sFrom.') as plx';
$sSQL .= ',ST_SimplifyPreserveTopology(geometry,'.$this->fPolygonSimplificationThreshold.') as geometry';
} else {
$sSQL .= $sFrom;
$sSQL .= ',geometry';
}
$sSQL .= ' FROM placex where place_id = '.$iPlaceID.') as plx';
$aPointPolygon = $this->oDB->getRow($sSQL, null, 'Could not get outline');