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simplify geometry handling in details page

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Hand the WKT directly to OpenLayers and let the client do the parsing,
it will be able to handle multipolygons as well as line strings.
Simplify geometries if they have too many points.

Also limit the number of child objects listed to 500.
This commit is contained in:
Sarah Hoffmann
2012-11-08 22:21:20 +01:00
parent df3202017e
commit 4bb56d98a8
2 changed files with 30 additions and 61 deletions
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39
lib/template/details-html.php
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@@ -73,23 +73,27 @@ body {
};
var proj_EPSG4326 = new OpenLayers.Projection("EPSG:4326");
var proj_map = map.getProjectionObject();
var latlon;
<?php
if (isset($aPolyPoints))
{
foreach($aPolyPoints as $aPolyPoint)
{
echo " pointList.push(new OpenLayers.Geometry.Point(".$aPolyPoint[1].",".$aPolyPoint[2]."));\n";
}
}
?>
var linearRing = new OpenLayers.Geometry.LinearRing(pointList).transform(proj_EPSG4326, proj_map);;
var polygonFeature = new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Polygon([linearRing]),null,style);
vectorLayer.addFeatures([polygonFeature]);
map.zoomToExtent(new OpenLayers.Bounds(<?php echo $aPointPolygon['minlon']?>, <?php echo $aPointPolygon['minlat']?>, <?php echo $aPointPolygon['maxlon']?>, <?php echo $aPointPolygon['maxlat']?>).transform(proj_EPSG4326, proj_map));
freader = new OpenLayers.Format.WKT({
'internalProjection': proj_map,
'externalProjection': proj_EPSG4326
});
var feature = freader.read('<?php echo $aPointDetails['outlinestring'];?>');
if (feature) {
map.zoomToExtent(feature.geometry.getBounds());
feature.style = {
strokeColor: "#75ADFF",
fillColor: "#F0F7FF",
strokeWidth: <?php echo ($aPointDetails['isarea']=='t'?'2':'5');?>,
strokeOpacity: 0.75,
fillOpacity: 0.75,
pointRadius: 100
};
vectorLayer.addFeatures([feature]);
}
}
</script>
</head>
<body onload="init();">
@@ -147,7 +151,7 @@ if (isset($aPolyPoints))
echo '<span class="type"><span class="label">Type: </span>'.$aAddressLine['class'].':'.$aAddressLine['type'].'</span>';
if ($sOSMType) echo ', <span class="osm"><span class="label"></span>'.$sOSMType.' <a href="http://www.openstreetmap.org/browse/'.$sOSMType.'/'.$aAddressLine['osm_id'].'">'.$aAddressLine['osm_id'].'</a></span>';
echo ', <span class="adminlevel">'.$aAddressLine['admin_level'].'</span>';
echo ', <span class="rankaddress">'.$aAddressLine['rank_search_label'].'</span>';
if (isset($aAddressLine['rank_search_label']) echo ', <span class="rankaddress">'.$aAddressLine['rank_search_label'].'</span>';
// echo ', <span class="area">'.($aAddressLine['fromarea']=='t'?'Polygon':'Point').'</span>';
echo ', <span class="distance">'.$aAddressLine['distance'].'</span>';
echo ' <a href="details.php?place_id='.$aAddressLine['place_id'].'">GOTO</a>';
@@ -231,6 +235,9 @@ if (isset($aPolyPoints))
echo '</div>';
}
}
if (sizeof($aParentOfLines) >= 500) {
echo '<p>There are more child objects which are not shown.</p>';
}
echo '</div>';
}