{"id":1395,"date":"2023-04-15T04:03:53","date_gmt":"2023-04-15T04:03:53","guid":{"rendered":"https:\/\/www.cartograph.eu\/v3\/?p=1395"},"modified":"2023-04-15T04:08:20","modified_gmt":"2023-04-15T04:08:20","slug":"using-kml-networklink-in-cartograph-maps-as-online-overlays","status":"publish","type":"post","link":"https:\/\/www.cartograph.eu\/v3\/using-kml-networklink-in-cartograph-maps-as-online-overlays\/","title":{"rendered":"Using KML NetworkLink tags in Cartograph Maps for online overlays"},"content":{"rendered":"\n

Cartograph Maps supports KML ovlerays <\/a>containing tracks<\/strong>, waypoints<\/strong>, and shapes <\/strong>(polygons<\/strong>). Usually all data is contained in a static KML or KMZ file which is saved locally on the device. <\/p>\n\n\n\n

But imagine a scenario where you want to dynamically pull information from a remote server and show it on the map, for instance, for showing the driver’s positions in fleet management or the participant’s positions during a sport event.<\/p>\n\n\n\n

KML offers NetworkLink <\/strong>tags for pulling data from remote servers <\/strong>(click here for a Google article <\/a>with more details about the usage of NetworkLink tags). In the following Sections we will discuss how to use KML NetworkLink tags in Cartograph Maps.<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

1. Create the KML file<\/h2>\n\n\n\n

First, we create a KML file which contains the NetworkLink tag <\/a>which points to your server.<\/p>\n\n\n\n

<?xml version='1.0' ?>\n<kml\n\txmlns=\"http:\/\/www.opengis.net\/kml\/2.2\">\n\t<Document>\n\t\t<name>Example KML file<\/name>\n\t\t<NetworkLink>\n\t\t\t<name>Fleet management server<\/name>\n\t\t\t<Link>\n\t\t\t\t<href>https:\/\/fleetdata.myserver.com<\/href>\n\t\t\t\t<viewFormat>south=[bboxSouth]&amp;west=[bboxWest]&amp;north=[bboxNorth]&amp;east=[bboxEast]<\/viewFormat>\n\t\t\t\t<viewRefreshMode>onStop<\/viewRefreshMode>\n\t\t\t<\/Link>\n\t\t<\/NetworkLink>\n\t<\/Document>\n<\/kml>\n\n<\/code><\/pre>\n\n\n\n
<\/p>\n\n\n\n
2. Add the KML file to Cartograph Maps<\/h2>\n\n\n\n
Go to the Overlay manager <\/a>– “Overlays” – “+” – “Import KML\/KMZ overlay<\/strong>” and select the KML file created above. Cartograph Maps will now load the live data from your server and show it on the map.<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Cartograph Maps supports KML ovlerays containing tracks, waypoints, and shapes (polygons). Usually all data is contained in a static KML<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1395","post","type-post","status-publish","format-standard","hentry","category-help"],"_links":{"self":[{"href":"https:\/\/www.cartograph.eu\/v3\/wp-json\/wp\/v2\/posts\/1395","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cartograph.eu\/v3\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cartograph.eu\/v3\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cartograph.eu\/v3\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cartograph.eu\/v3\/wp-json\/wp\/v2\/comments?post=1395"}],"version-history":[{"count":9,"href":"https:\/\/www.cartograph.eu\/v3\/wp-json\/wp\/v2\/posts\/1395\/revisions"}],"predecessor-version":[{"id":1407,"href":"https:\/\/www.cartograph.eu\/v3\/wp-json\/wp\/v2\/posts\/1395\/revisions\/1407"}],"wp:attachment":[{"href":"https:\/\/www.cartograph.eu\/v3\/wp-json\/wp\/v2\/media?parent=1395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cartograph.eu\/v3\/wp-json\/wp\/v2\/categories?post=1395"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cartograph.eu\/v3\/wp-json\/wp\/v2\/tags?post=1395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}