function _openlayers_presets_ui_get_projections in Openlayers 6

Sort Projections

Given layers, sort projections out

Parameters

$layers: Array of layers

Return value

Return sorted array

2 calls to _openlayers_presets_ui_get_projections()

openlayers_presets_ui_presets_manage_add in modules/openlayers_presets_ui/includes/openlayers_presets_ui.ui.inc

Menu Callback for Add Preset

_openlayers_presets_ui_form_center_map in modules/openlayers_presets_ui/includes/openlayers_presets_ui.ui.inc

Create Centering Map

File

modules/openlayers_presets_ui/includes/openlayers_presets_ui.ui.inc, line 1005

This file holds the functions for the openlayers presets ui

Code

function _openlayers_presets_ui_get_projections($layers = array()) {
  $all_projections = array();
  $projection_layers = array();

  // Check $layers
  if (!is_array($layers)) {
    return $projection_layers;
  }

  // Go through layers
  foreach ($layers as $layer_key => $layer) {

    // Check projections
    if ($layer['projection']) {

      // Go through projections
      foreach ($layer['projection'] as $projection) {
        if (!array_key_exists($projection, $projection_layers)) {
          $projection_layers[$projection] = array();
        }
        $projection_layers[$projection][] = $layer_key;
      }
    }
  }

  // Add any layers that do not have a projection specified to all
  foreach ($layers as $layer_key => $layer) {

    // Check projections
    if (!$layer['projection']) {

      // Go through projections
      foreach ($projection_layers as $k => $v) {
        $projection_layers[$k][] = $layer_key;
      }
    }
  }

  // Return array
  return $projection_layers;
}