.GML 文件扩展名

A GML file contains Geography Markup Language (GML), which is a language that includes XML-like tags defining geographic attributes and geometry coordinates. GML is an open, interchangeable format that geographers use to model geographical features, such as roads, lakes, and rivers, in Geographic Information Systems (GIS). GML files may also use the .xml file extension (.XML files).

You can open GML files with various GIS applications, including QGIS, TatukGIS Viewer, and Merkaartor. For example, to open a GML file with QGIS, click the Data Source Manager icon in the toolbar, select the Browse (...) button in the Source section, choose the GML file, and click Open.

Since GML files store plain text, you can also open them with a text or source code editor, such as Microsoft Visual Studio Code, Microsoft Notepad or Apple TextEdit.

A GML file is a data output file created by Printed Circuit Board (PCB) CAD tools such as Autodesk EAGLE. It contains layout data for the layer that specifies the hole locations that need to be milled.

Gerber layer files, such as GML, are used by PCB manufacturing machines to create PCB boards. The GML file is an exported version of the PCB layout and is referenced to mill holes in the board.

注: The Gerber format was originally developed by Gerber Systems but is now maintained by Ucamco.

File created in the GML (Graph Modeling Language) format, an ASCII text format used for describing graph structures; describes the structure of the graph in a text-based hierarchy and includes the nodes, edges, and attributes that comprise the graph.

The Graph Modeling Language can describe family trees, flowcharts, networks, and other graph structures.