openlayers_layer_type_maptiler.inc in Openlayers 7.2
TileWarper Layer Type
File
plugins/layer_types/openlayers_layer_type_maptiler.incView source
<?php
/**
* @file
* TileWarper Layer Type
*/
/**
* OpenLayers MapTiler Layer Type class
*/
class openlayers_layer_type_maptiler extends openlayers_layer_type {
/**
* Provide initial values for options.
*/
function options_init() {
return array(
'type' => 'png',
'layer_handler' => 'maptiler',
'zoomOffset' => 0,
) + parent::options_init();
}
/**
* Options form which generates layers
*/
function options_form($defaults = array()) {
return array(
'base_url' => array(
'#type' => 'textfield',
'#title' => t('Base URL'),
'#default_value' => isset($this->data['base_url']) ? $this->data['base_url'] : '',
),
'type' => array(
'#type' => 'select',
'#options' => array(
'jpg' => 'JPG',
'png' => 'PNG',
),
'#default_value' => isset($this->data['type']) ? $this->data['type'] : 'png',
),
'resolutions' => array(
'#type' => 'select',
'#multiple' => TRUE,
'#options' => array_combine(array_map('strval', openlayers_get_resolutions('EPSG:900913')), range(0, 21)),
'#title' => t('Zoom Level Range'),
'#default_value' => isset($this->data['resolutions']) ? $this->data['resolutions'] : array_map('strval', openlayers_get_resolutions('EPSG:900913')),
),
'zoomOffset' => array(
'#type' => 'textfield',
'#title' => t('Zoom offset'),
'#default_value' => isset($this->data['zoomOffset']) ? $this->data['zoomOffset'] : 0,
'#description' => t('If your cache has more zoom levels than you want to provide access to with this layer, supply a zoomOffset. This zoom offset is added to the current map zoom level to determine the level for a requested tile. For example, if you supply a zoomOffset of 3, when the map is at the zoom 0, tiles will be requested from level 3 of your cache. Default is 0 (assumes cache level and map zoom are equivalent). Using zoomOffset is an alternative to setting serverResolutions if you only want to expose a subset of the server resolutions.'),
),
);
}
function options_form_submit($form, &$form_state) {
parent::options_form_submit($form, $form_state);
$form_state['values']['data']['base_url'] = explode("\n", $form_state['values']['data']['base_url']);
$form_state['values']['data']['resolutions'] = array_map('floatval', array_values($form_state['values']['data']['resolutions']));
$form_state['values']['data']['zoomOffset'] = intval($form_state['values']['data']['zoomOffset'], 10);
}
/**
* Render.
*/
function render(&$map) {
drupal_add_js(drupal_get_path('module', 'openlayers') . '/plugins/layer_types/openlayers_layer_type_maptiler.js');
}
}
Classes
Name![]() |
Description |
---|---|
openlayers_layer_type_maptiler | OpenLayers MapTiler Layer Type class |