public function GmapPolylineToolbox::getZoomLevels in GMap Module 7.2

Build a logarithmic scale of zoom levels.

former _gmap_polyutil_zoom_levels()

Return value

mixed Zoom levels.

2 calls to GmapPolylineToolbox::getZoomLevels()

GmapPolylineToolbox::getDPEncode in lib/Drupal/gmap/GmapPolylineToolbox.php

Implementation of the Douglas-Peucker polyline simplification algorithm.

GmapPolylineToolbox::__construct in lib/Drupal/gmap/GmapPolylineToolbox.php

Do not change.

File

lib/Drupal/gmap/GmapPolylineToolbox.php, line 340

Contains GmapPolylineToolbox.php Encoded polyline utilities.

Class

GmapPolylineToolbox

Namespace

Drupal\gmap

Code

public function getZoomLevels() {
  if (!isset(self::$levels)) {
    for ($i = 0; $i < self::GMAP_ZOOM_LEVELS; $i++) {
      self::$levels[$i] = self::GMAP_DP_EPSILON * pow(self::GMAP_ZOOM_FACTOR, self::GMAP_ZOOM_LEVELS - $i - 1);
    }
  }
  return self::$levels;
}