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<?php
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/**
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* @file
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* Functions for dealing maps
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*
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* @copyright
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* (C) 2007-2013 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this module are subject to the Mozilla
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* Public License Version 1.1.
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* @see http://www.mozilla.org/MPL/MPL-1.1.html
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*
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* @author
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* - Andreas Kohlbecker <a.kohlbecker@BGBM.org>
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*/
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/**
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* Compose an render array for distribution and occurrence
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* maps.
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*
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* The map can either be a plain image or a dynamic open layers map
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* depending on the settings
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*
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* compose_hook() implementation
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*
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* @param $map_id
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* @param string $occurrence_query
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* @param string $distribution_query
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* @param string $legend_format_query
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* @param array $event_listeners
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* An associative array of with OpenLayers.Map event names as key and corresponding js callbacks.
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* In addition to the event names '#execute' as key is also allowed.
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* Valid events are:
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* - move
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* - moveend
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* - zoomend
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* - changelayer
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* - changebaselayer
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* - #execute:
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* force execution of the given callback after registration of the event handlers
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* see http://dev.openlayers.org/apidocs/files/OpenLayers/Map-js.html#OpenLayers.Map.events for more
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* @param bool $resizable
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* only possible for openlayers_map
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* @param string $force_map_type
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* Can be used to override the map_type setting stored in the settings variable CDM_MAP_DISTRIBUTION
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* - 1: openlayers_map
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* - 0: image_map
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* @return array A drupal render array
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* A drupal render array
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* @ingroup compose
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*/
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function compose_map($map_id, $occurrence_query = NULL, $distribution_query = NULL, $legend_format_query = NULL, array $event_listeners = array(), $resizable = false, $force_map_type = NULL) {
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$map_settings = get_array_variable_merged(CDM_MAP_DISTRIBUTION, CDM_MAP_DISTRIBUTION_DEFAULT);
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if($force_map_type === NULL){
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$force_map_type = $map_settings['map_type'];
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}
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if ($force_map_type == 1) {
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_add_jquery_ui();
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$map_html = cdm_map_openlayers(
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$map_id,
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$occurrence_query,
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$distribution_query,
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$legend_format_query,
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$map_settings['caption'],
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$event_listeners,
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$resizable
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);
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}
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else {
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$map_height = round($map_settings['image_map']['width'] / (float)$map_settings['aspect_ratio']);
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$map_html = cdm_map_plain_image(
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$map_settings['image_map']['width'],
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$map_height,
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$occurrence_query,
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$distribution_query,
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$legend_format_query,
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$map_settings['caption']
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);
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}
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return markup_to_render_array($map_html);
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}
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/**
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* Adds the javascript for a openlayers map to the page as well as all javascript libs.
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*
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*
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* @param $map_settings
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* The map settings array as retrieved by e.g. get_array_variable_merged(CDM_MAP_DISTRIBUTION, CDM_MAP_DISTRIBUTION_DEFAULT);
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* @param array $event_listeners
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* An associative array of with OpenLayers.Map event names as key and corresponding js callbacks.
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* In addition to the event names '#execute' as key is also allowed.
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* Valid events are:
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* - move
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* - moveend
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* - zoomend
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* - changelayer
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* - changebaselayer
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* - #execute:
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* force execution of the given callback after registration of the event handlers
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* see http://dev.openlayers.org/apidocs/files/OpenLayers/Map-js.html#OpenLayers.Map.events for more
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* @param bool $resizable
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* The map is made resizable when set to true
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*/
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function _add_js_openlayers_map($map_settings, array $event_listeners = array(), $resizable = false) {
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font_awesome_icon_markup(); // no icon specified, only used to add the font and styles
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_add_js_openlayers();
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$edit_map_service = get_edit_map_service_settings();
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drupal_add_js(drupal_get_path('module', 'cdm_dataportal') . '/js/map/openlayers_map.js',
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array(
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'type' => 'file',
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'group' => JS_DEFAULT, // module-layer JavaScript.
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'weight' => 0,
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'cache' => TRUE,
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'preprocess' => FALSE
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));
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drupal_add_js(drupal_get_path('module', 'cdm_dataportal') . '/js/map/openlayers_layers.js',
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array(
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'type' => 'file',
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'group' => JS_DEFAULT,
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'weight' => 1, // after openlayers_map.js
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'cache' => TRUE,
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'preprocess' => FALSE
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));
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$cdm_openlayers_options = array(
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'legendPosition' => '3',
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'boundingBox' => $map_settings['bbox'],
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'aspectRatio' => $map_settings['aspect_ratio'],
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'distributionOpacity' => $map_settings['distribution_opacity'],
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'legendOpacity' => $map_settings['legend']['opacity'],
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'showLayerSwitcher' => $map_settings['openlayers']['show_layer_switcher'] == 1,
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'displayOutsideMaxExtent' => $map_settings['openlayers']['display_outside_max_extent'] == 1,
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'resizable' => $resizable
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// 'imgPath' => drupal_get_path('module', 'cdm_dataportal') . '/js/map/OpenLayers-2.13.1/img/' // path to the control icons
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// if no baseLayerNames or defaultBaseLayerName are not defined
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// the defaults in cdm_openlayers.js will be used
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);
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// --- setting the base layer options
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if (is_array($map_settings['openlayers']['base_layers']) && count($map_settings['openlayers']['base_layers']) > 0) {
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$layer_names = $map_settings['openlayers']['base_layers'];
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foreach($layer_names as $name){
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if(str_beginsWith($name, 'g')){
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if( isset($map_settings['openlayers']['google_maps_api_key']) && strlen($map_settings['openlayers']['google_maps_api_key']) == 39) {
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// google layer detected
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drupal_add_js("https://maps.googleapis.com/maps/api/js?key=" . $map_settings['openlayers']['google_maps_api_key'] . "&callback=initMap", 'external');
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} else {
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drupal_set_message('A Google Maps layer is configured but the API key is either missing or invalid.
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Please set your Google Maps API key in the ' . l('Geo & Map Settings', 'admin/config/cdm_dataportal/settings/geo') .'.', 'warning');
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}
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}
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}
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$cdm_openlayers_options['baseLayerNames'] = array_values($layer_names);
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if($layer_names['PREFERRED']){
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$cdm_openlayers_options['defaultBaseLayerName'] = $layer_names['PREFERRED'];
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unset($layer_names['PREFERRED']); // why is this needed?
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if(!array_search($cdm_openlayers_options['defaultBaseLayerName'], $cdm_openlayers_options['baseLayerNames'])){
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// the default layer must also be in the list of base layers
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$cdm_openlayers_options['baseLayerNames'][] = $cdm_openlayers_options['defaultBaseLayerName'];
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}
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}
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}
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// --- custom wms base layer
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$map_settings['openlayers']['custom_wms_base_layer']['params'] = json_decode($map_settings['openlayers']['custom_wms_base_layer']['params']);
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$cdm_openlayers_options['customWMSBaseLayerData'] = $map_settings['openlayers']['custom_wms_base_layer'];
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// --- eventhandlers
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$event_listeners_js = '';
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$execute_handler = '';
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foreach($event_listeners as $event=>$js_callback){
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if($event == '#execute'){
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$execute_handler = 'map_container.each(function(){' . $js_callback . '();});';
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} else {
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$event_listeners_js .= ($event_listeners_js ? ",\n": "\n") .'"' . $event . '": ' . $js_callback;
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}
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}
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$mapserver_base_uri = $edit_map_service['base_uri'];
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$is_https = isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on';
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$http_protocol = $is_https ? 'https' : 'http';
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$mapserver_base_uri = preg_replace('/^https?:/', $http_protocol . ':', $mapserver_base_uri);
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// window.onload - is executed when the document and images etc is fully loaded
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// Query(document).ready - is executed much earlier, when the DOM is loaded
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drupal_add_js("
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jQuery(document).ready(function() {
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jQuery(window).load(function () {
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var map_container = jQuery('#openlayers_map').cdm_openlayers_map(
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'" . $mapserver_base_uri . "',
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'" . $edit_map_service['version'] . "',
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" . json_encode($cdm_openlayers_options) . "
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);
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map_container.each(function(){
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this.cdmOpenlayersMap.registerEvents({" . "
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" . $event_listeners_js . "
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});
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});
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" . $execute_handler . "
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});
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});
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", array('type' => 'inline'));
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}
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/**
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* Creates markup for an openlayers based dynamic map.
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*
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* @param string $bounding_box
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* @param string $occurrenceQuery
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* @param string $distributionQuery
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* @param string $legendFormatQuery
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* @param string $map_caption
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* @param array $event_listeners
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* An associative array of with OpenLayers.Map event names as key and corresponding js callbacks.
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* In addition to the event names '#execute' as key is also allowed.
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* Valid events are:
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* - move
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* - moveend
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* - zoomend
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* - changelayer
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* - changebaselayer
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* - #execute:
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* force execution of the given callback after registration of the event handlers
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* see http://dev.openlayers.org/apidocs/files/OpenLayers/Map-js.html#OpenLayers.Map.events for more
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*
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* @return String
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* The markup for the map
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*/
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function cdm_map_openlayers($map_id, $occurrenceQuery = FALSE, $distributionQuery = FALSE,
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$legendFormatQuery = FALSE, $map_caption = FALSE, array $event_listeners = array(),
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$resizable = false) {
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$map_settings = get_array_variable_merged(CDM_MAP_DISTRIBUTION, CDM_MAP_DISTRIBUTION_DEFAULT);
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if($map_id == NULL){
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$map_id = "openlayers-container-" . sha1($occurrenceQuery . $distributionQuery);
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}
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_add_js_openlayers_map($map_settings, $event_listeners, $resizable);
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$out = '<div id="' . $map_id . '" class="openlayers-container openlayers_width ui-widget-content" style="width: 100%;">';
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$out .= '<div id="openlayers_map" class="smallmap" style="width:100%; height:100%; margin: 10px;"';
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// Additional query parameters as set in the data portal admin section.
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$labels_on = $map_settings['show_labels'];
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// need to set the ms parameter to some value in order to satisfy the
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// map service even if this value should not be required:
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$width = 512;
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$openlayers_map_query_string = '&img=false&ms=' . $width
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. ($labels_on ? '&label=' . $labels_on : '');
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if ($occurrenceQuery) {
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// @todo Fix $occurrenceQuery.
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// $occurrenceQuery .= '&bbox=-180,-90,180,90';
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$occurrenceQuery .= '&l=v%3Aatbi%2Ce_w_0'; // TODO why are we using v:atbi,e_w_0 as layer ???
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// $occurrenceQuery .= '&l=v:e_w_0';
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// TODO add to cdm service?
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$occurrenceQuery .= '&legend=0';
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$out .= ' occurrenceQuery="' . $occurrenceQuery . '&' . $openlayers_map_query_string . '"';
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}
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if ($distributionQuery) {
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//HACK for testing (this must be done in js)
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// $distributionQuery .= "&layer=em_tiny_jan2003&dest_projection_epsg=7777777";
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$out .= ' distributionQuery="' . $distributionQuery . '&' . $openlayers_map_query_string . '"';
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}
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if ($legendFormatQuery) {
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$out .= ' legendFormatQuery="' . $legendFormatQuery . '"';
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}
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$out .= '></div></div>';
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// Showing map caption.
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if ($map_caption) {
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$out .= '<div class="distribution_map_caption">' . $map_caption . '</div>';
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}
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return $out;
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}
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/**
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* Composes the render array for a distribution map using the given distribution query string.
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*
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* The distribution map can either be a plain image or a dynamic open layers map
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* depending on the settings.
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*
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* compose_hook() implementation
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*
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* @param string $query_string
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* An EDIT map services distribution query string
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*
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* @return array
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* A drupal render array
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*
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* Similar compose function compose_map()
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*
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* @ingroup compose
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*/
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function compose_distribution_map($query_string) {
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$fontStyles = array(
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0 => "plane",
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1 => "italic",
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);
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if (!$query_string) {
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// The $query_string is empty if there are no distribution areas defined.
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return null;
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}
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/* ------ choose the display mode, either openlayers or static image ------ */
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$map_settings = get_array_variable_merged(CDM_MAP_DISTRIBUTION, CDM_MAP_DISTRIBUTION_DEFAULT);
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if ($map_settings['map_type'] == 1) {
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/* =========== display distributions using the openlayers map viewer =========== */
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$legendFormatQueryStr = "format=image" . urlencode('/') . "png"
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. "&TRANSPARENT=TRUE"
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. "&WIDTH=" . $map_settings['legend']['icon_width']
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. "&HEIGHT=" . $map_settings['legend']['icon_height']
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// TODO why is the layer=topp:tdwg_level_4 parameter needed at all here??
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// AK: i think the tdwg_level_4 is used as place holder and will be replaced later on
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// => search for "tdwg_level_4" in the code
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. "&layer=topp" . urlencode(':') . "tdwg_level_4"
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347
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. "&LEGEND_OPTIONS=forceLabels" . urlencode(':') . "on"
|
|
348
|
. ";fontStyle" . urlencode(':') . $fontStyles[$map_settings['legend']['font_style']]
|
|
349
|
. ";fontSize" . urlencode(':') . $map_settings['legend']['font_size']
|
|
350
|
. "&SLD=";
|
|
351
|
|
|
352
|
/*$out .= cdm_map_openlayers(
|
|
353
|
$map_settings['bbox'],
|
|
354
|
NULL,
|
|
355
|
$query_string,
|
|
356
|
$legendFormatQueryStr,
|
|
357
|
$map_settings['caption']
|
|
358
|
);
|
|
359
|
*/
|
|
360
|
}
|
|
361
|
else {
|
|
362
|
$legendFormatQueryStr = '';
|
|
363
|
/*
|
|
364
|
cdm_map_plain_image(
|
|
365
|
$map_settings['image_map']['width'],
|
|
366
|
$map_settings['image_map']['height'],
|
|
367
|
$map_settings['bbox'],
|
|
368
|
NULL,
|
|
369
|
$query_string,
|
|
370
|
$legendFormatQueryStr,
|
|
371
|
$map_settings['caption']
|
|
372
|
);
|
|
373
|
*/
|
|
374
|
}
|
|
375
|
$out = compose_map('distribution', NULL, $query_string, $legendFormatQueryStr);
|
|
376
|
|
|
377
|
return $out;
|
|
378
|
}
|
|
379
|
|
|
380
|
|
|
381
|
|
|
382
|
|
|
383
|
/**
|
|
384
|
* Composes the markup for a plain image map.
|
|
385
|
*
|
|
386
|
* @param int $width
|
|
387
|
* @param string $occurrenceQuery
|
|
388
|
* @param string $distributionQuery
|
|
389
|
* @param string $legendFormatQuery
|
|
390
|
* @param string $map_caption
|
|
391
|
*
|
|
392
|
* @return String
|
|
393
|
* rendered html
|
|
394
|
*/
|
|
395
|
function cdm_map_plain_image($width, $height= NULL, $occurrenceQuery = FALSE, $distributionQuery = FALSE,
|
|
396
|
$legendFormatQuery = FALSE, $map_caption = FALSE) {
|
|
397
|
|
|
398
|
$map_settings = get_array_variable_merged(CDM_MAP_DISTRIBUTION, CDM_MAP_DISTRIBUTION_DEFAULT);
|
|
399
|
|
|
400
|
$baselayer_name = $map_settings['image_map']['base_layer'];
|
|
401
|
if(empty($baselayer_name)){
|
|
402
|
$baselayer_name = "earth";
|
|
403
|
}
|
|
404
|
|
|
405
|
$query_string = '&img=true&recalculate=false&ms=' . $width . ($height ? ',' . $height : '')
|
|
406
|
// Additional query parameters as set in the data portal admin section.
|
|
407
|
. ($map_settings['bbox'] ? '&bbox=' . $map_settings['bbox'] : '')
|
|
408
|
. ($map_settings['show_labels'] ? '&label=' . $map_settings['show_labels'] : '');
|
|
409
|
|
|
410
|
if ($map_caption) {
|
|
411
|
$query_string .= '&mlp=3&mc_s=Georgia,15,blue&mc=' . $map_caption;
|
|
412
|
}
|
|
413
|
|
|
414
|
if (get_edit_map_service_version_number() >= 1.1) {
|
|
415
|
|
|
416
|
// Either occurrence or distribution - combined maps will be possible
|
|
417
|
// in the future.
|
|
418
|
if ($occurrenceQuery) {
|
|
419
|
// @todo Fix $occurrenceQuery.
|
|
420
|
$occurrenceQuery = str_replace("&image=false", "", $occurrenceQuery);
|
|
421
|
// $occurrenceQuery .= '&l=v%3Aatbi%2Ce_w_0';
|
|
422
|
|
|
423
|
// Will be replaced below.. HACK!!!
|
|
424
|
$occurrenceQuery .= '&l=' . $baselayer_name . '&as=';
|
|
425
|
|
|
426
|
$query_string .= "&" . $occurrenceQuery;
|
|
427
|
}
|
|
428
|
elseif ($distributionQuery) {
|
|
429
|
$query_string .= '&l=' . $baselayer_name . "&" .$distributionQuery;
|
|
430
|
}
|
|
431
|
|
|
432
|
// Apply Plain Image map settings special for version >= 1.1.
|
|
433
|
/*
|
|
434
|
example : title=a:Naturalized++non-invasive
|
|
435
|
&ad=cyprusdivs:bdcode:a:5&as=a:ff9900,,0.1,&l=tdwg4
|
|
436
|
&ms=500&bbox=32,34,35,36&img=true&legend=1&mlp=3
|
|
437
|
&mc_s=Georgia,15,blue&mc=&recalculate=false
|
|
438
|
|
|
439
|
http://edit.br.fgov.be/edit_wp5/v1/rest_gen.php?
|
|
440
|
l=background_gis:b,cyprusdivs&ad=cyprusdivs%3Abdcode%3Aa%3A8%2C4
|
|
441
|
&as=a%3A339966%2C%2C0.1%2C|b:0000ff,,
|
|
442
|
&bbox=32%2C34%2C35%2C36&img=true&legend=1&mc=&mc_s=Georgia%2C15%2Cblue
|
|
443
|
&mlp=3&ms=500&recalculate=false&title=a%3Aindigenous
|
|
444
|
*/
|
|
445
|
|
|
446
|
$map_service_script_name = "rest_gen.php";
|
|
447
|
|
|
448
|
$bgcolor_areaStyleId = "Y";
|
|
449
|
$baselayer_areaStyleId = "Z";
|
|
450
|
$bgcolor_layer = '';
|
|
451
|
$additional_area_styles = array();
|
|
452
|
|
|
453
|
// Background color:
|
|
454
|
if ($map_settings['image_map']['bg_color'] ) {
|
|
455
|
$bgcolor_layer = "background_gis:" . $bgcolor_areaStyleId;
|
|
456
|
$additional_area_styles[] = $bgcolor_areaStyleId . ":" . $map_settings['image_map']['bg_color'] . ",,";
|
|
457
|
}
|
|
458
|
|
|
459
|
// TODO HACK to replace the default base layer which currently is tdwg4 !!!
|
|
460
|
// only needed for distribution maps.
|
|
461
|
if (strpos($query_string, "?l=") !== FALSE) {
|
|
462
|
$layer_param_token = "?l=";
|
|
463
|
}
|
|
464
|
else {
|
|
465
|
$layer_param_token = "&l=";
|
|
466
|
}
|
|
467
|
if (strpos($query_string, "?as=") !== FALSE) {
|
|
468
|
$areystyle_param_token = "?as=";
|
|
469
|
}
|
|
470
|
else {
|
|
471
|
$areystyle_param_token = "&as=";
|
|
472
|
}
|
|
473
|
if ($map_settings['image_map']['base_layer']) {
|
|
474
|
$query_string = str_replace($layer_param_token .$baselayer_name, "$layer_param_token" . $map_settings['image_map']['base_layer'] . ":" . $baselayer_areaStyleId, $query_string);
|
|
475
|
}
|
|
476
|
else {
|
|
477
|
$query_string = str_replace($layer_param_token . $baselayer_name, $layer_param_token . $baselayer_name . ":" . $baselayer_areaStyleId . ",", $query_string);
|
|
478
|
}
|
|
479
|
|
|
480
|
if ($bgcolor_layer) {
|
|
481
|
$query_string = str_replace($layer_param_token, $layer_param_token . $bgcolor_layer . ",", $query_string);
|
|
482
|
}
|
|
483
|
|
|
484
|
if ($map_settings['image_map']['layer_style']) {
|
|
485
|
$additional_area_styles[] = $baselayer_areaStyleId . ":" . $map_settings['image_map']['layer_style'];
|
|
486
|
}
|
|
487
|
|
|
488
|
if(isset($map_settings['projection'])){
|
|
489
|
$query_string .= "&srs=" . $map_settings['projection'];
|
|
490
|
}
|
|
491
|
|
|
492
|
if(isset($map_settings['legend']['show']) && $map_settings['legend']['show']){
|
|
493
|
$query_string .= "&legend=1";
|
|
494
|
}
|
|
495
|
|
|
496
|
foreach ($additional_area_styles as $as) {
|
|
497
|
$query_string = str_replace($areystyle_param_token, $areystyle_param_token . $as . "|", $query_string);
|
|
498
|
}
|
|
499
|
|
|
500
|
}
|
|
501
|
else {
|
|
502
|
// Pre 1.1. version of map service.
|
|
503
|
if ($occurrenceQuery) {
|
|
504
|
|
|
505
|
$map_service_script_name = "point.php";
|
|
506
|
|
|
507
|
// Fix $occurrenceQuery.
|
|
508
|
$occurrenceQuery = str_replace("&image=false", "", $occurrenceQuery);
|
|
509
|
// $occurrenceQuery .= '&l=v%3Aatbi%2Ce_w_0';
|
|
510
|
$occurrenceQuery .= '&l=v:e_w_0';
|
|
511
|
$query_string .= "&" . $occurrenceQuery;
|
|
512
|
}
|
|
513
|
elseif ($distributionQuery) {
|
|
514
|
$query_string .= "&" . $distributionQuery;
|
|
515
|
$map_service_script_name = "areas.php";
|
|
516
|
}
|
|
517
|
}
|
|
518
|
|
|
519
|
$mapUri = url(get_edit_map_service_full_uri() . '/' . $map_service_script_name . '?' . $query_string);
|
|
520
|
$out = '<img class="distribution_map" src="' . $mapUri . '" alt="Map" />';
|
|
521
|
// Showing map caption.
|
|
522
|
if ($map_caption) {
|
|
523
|
$out .= '<div class="distribution_map_caption">' . $map_caption . '</div>';
|
|
524
|
}
|
|
525
|
|
|
526
|
return $out;
|
|
527
|
}
|
|
528
|
|
|
529
|
|