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FreeCAD is a free and open-source application that can work with the DWG files by using the proprietary ODA File Converter for .dwg and .dxf files from the Open Design Alliance (ODA). [55] The ODA also provides a freeware stand-alone viewer for .dwg and .dgn files, ODA Drawings Explorer, which runs on Windows, Linux, and Mac OS X.
The file format is the native spatial data storage format for Autodesk GIS programs MapGuide and AutoCAD Map 3D. As of 2014 SDF format version SDF3 (based on SQLite3) uses a single file. Prior versions of the format required a spatial index file (SIF), with an optional key index file (KIF) to speed access to the file.
KML files are very often distributed as KMZ files, which are zipped KML files with a .kmz extension. The contents of a KMZ file are a single root KML document (notionally "doc.kml") and optionally any overlays, images, icons, and COLLADA 3D models referenced in the KML including network-linked KML files. The root KML document by convention is a ...
Change the Save as type to Kml (it defaults to .kmz when you start the program). Save the file; Locate the file on your computer and open it with a plain text editor. Select all>Copy; Now create a new subpage of Template:Attached KML using the title of the article – Ontario Highway 401 becomes Template:Attached KML/Ontario Highway 401)
Conversion of coordinates and map positions among different map projections reference to the same datum may be accomplished either through direct translation formulas from one projection to another, or by first converting from a projection to an intermediate coordinate system, such as ECEF, then converting from ECEF to projection . The formulas ...
NAME Export universal DXF Available in AutoCAD application Curve recognition Circle recognition Arc recognition Orthogonal line detection Corner detection Line connection
IntelliCAD versions that work with BIM files added choosing the IFC4 or IFC4x3 schema when exporting to .ifc files, and display properties for AEC styles. IntelliCAD versions that natively work with DGN files added attaching cell library (.cel) files, using the Explorer command to work with layouts and text styles, and snapping to geometric ...
HGRS87 specifies a non-geocentric datum that is tied to the coordinates of the key geodetic station at the Dionysos Satellite Observatory (DSO) northeast of Athens (The central pedestal (CP) at this location has by definition HGRS87 coordinates 38° 4' 33.8000" N - 23° 55' 51.0000"E, N = +7 m.