KML terminologyĪ compressed or zipped KML file. None of the new features in the KML 2.2 specification are currently supported, including time animation, photo overlays, and schema tags. All of the features of the KML 2.0 and 2.1 specifications are supported. Using geoprocessing tools, you can convert a map layer to KML and convert KML to an ArcGIS geodatabase so you can view, edit, and analyze the geographic data contained in any KML file. A single KML file can contain features of different types as well as imagery. KML can also contain related content such as graphics, pictures, attributes, and HTML, whereas datasets in ArcGIS are typically seen as separate and homogeneous elements (for example, point feature classes can only contain points rasters can only contain cells or pixels and not features). KML can be composed of point, line, polygon features, and raster imagery. kmz (for compressed or zipped KML files) file extension.
KML is a common format for sharing geographic data with non-GIS users, as it can be easily delivered on the internet and viewed in a number of free applications. DXF coordinates are always without dimensions, so that the reader or user needs to know the drawing unit or has to extract it from the textual comments in the sheets.Keyhole Markup Language (KML) is an XML-based format for storing geographic data and associated content and is an official Open Geospatial Consortium (OGC) standard. Certain object types, including ACIS solids and regions, are not documented. The KML file specifies a set of features (placemarks, images, polygons, 3D models, textual descriptions, etc.) displayed on maps in geospatial software implementing the KML encoding.Īs AutoCAD has become more powerful, supporting more complex object types, DXF has become less useful.
KML files are often distributed in KMZ files, which are zipped KML files with a. Versions of AutoCAD from Release 10 and up support both ASCII and binary forms of DXF. AutoCAD DXF (Drawing Interchange Format, or Drawing Exchange Format) is a CAD data file format developed by Autodesk for enabling data interoperability between AutoCAD and other programs.
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