Contents
How do I edit a KMZ file?
To edit a KMZ file, you can open it in Google Earth, right-click it in the Places Pane, choose Copy from the menu, and paste the contents into a text editor.
What is a KML layer?
KML (formerly known as Keyhole Markup Language) is an XML-based file format for displaying information in a geographic context. The KML file is the source of the layer in the map or scene. You can use a . kml or . kmz (compressed) file, or a URL pointing to a KML file.
How do you edit KML files?
To edit a KML file, simply open a KML file using the File > Import > From KML option and then edit the file with the help of available tools. When you open a file, you browse all KML file information Metadata, Tracks, Waypoints, Routes, etc. It also shows KML files in Preview, Point List, and OpenStreetMap view modes.
How to make KML files smaller by reducing precision?
Simply discarding unnecessary decimal places reduces the file size by almost half. We also show the effects of using the KMZ format. We thought that other people with large KML files might find the idea useful. So, below is a JavaScript tool that will take a KML file and reduce the precision of the latitudes and longitudes.
What should I do if my KML is too big?
Consider it an upgrade to KML without having to drastically modify the front-end. You can break down your KML in to multiple KML’s with a Parent KML referencing the smaller kmls. At least this will bring your file sizes down to a respectable level and allow you to reference much larger datasets as KML’s.
When to use KML as a data source?
Honestly KML is really only good for small datasets with few features and associated attributes. I wouldn’t go near it as a file data source. If you’re looking at these files getting bigger, I’d look at another data type, or definitely head down the GeoServer/MapServer route for distributed datasets.
What to do if your KML is too big for the Google Maps API?
If you haven’t invested too much time in your Google Maps API you could switch to OpenLayers which has a client side KML parser that can read your own KML files – see example below: However for a 15MB file this would likely grind the browser to a halt.