function openlayers_views_style_data::reduce_features in Openlayers 7.2

Basically an algebraic reduction; given whether to group, a feature, a list of features, etc., return a full $features array with the element added, either straight non-grouped, or within a new or existing group

openlayers_views_style_data specific

1 call to openlayers_views_style_data::reduce_features()

openlayers_views_style_data::map_features in modules/openlayers_views/views/openlayers_views_style_data.inc

File

modules/openlayers_views/views/openlayers_views_style_data.inc, line 466

This file holds style plugin for OpenLayers Views

Class

openlayers_views_style_data

@class Extension of the Views Plugin Style for OpenLayers

Code

function reduce_features($is_grouped, $features, $feature, $group) {
  if ($is_grouped) {
    if (isset($features[$group])) {
      $features[$group]['attributes']['count']++;
      $features[$group]['wkt'][] = $feature['wkt'];
      $features[$group]['features'][] = $feature;
      return $features;
    }
    else {
      $features[$group] = array(
        'attributes' => array(
          'count' => 1,
        ),
        'wkt' => array(
          $feature['wkt'],
        ),
        'projection' => $feature['projection'],
        'features' => array(
          $feature,
        ),
      );
      return $features;
    }
  }
  else {
    array_push($features, $feature);
    return $features;
  }
}