FAQ
LAS to CG4 Conversion
What are LAS files?
LAS (Latitude Seconds) is the file extension of grids used by NADCON, the North American Datum Conversion tool of the U.S. National Geodetic Survey (NGS), to convert coordinates between older and newer datums, in particular from NAD27 to NAD83. It stores, for an area covered by a regular net of points, how many seconds of arc the latitude of each point has to be moved. Longitude has its own companion file with the .los extension (Longitude Seconds), and the two always work as a pair. Separate pairs exist for the conterminous United States, Alaska, Hawaii, and other regions. The same extension is also used by LiDAR point cloud files, which are unrelated, so the context of the file matters.
What are CG4 files?
CG4 is a raster format associated with CALS (Continuous Acquisition and Life-Cycle Support) — a program initiated by the US Department of Defense to capture and link military data. CG4 is compatible with a very limited number of digital graphics programs. Files with this extension contain a bitmap that often uses the CCITT4 compression, which is an old fax machine standard used for black-and-white images.
Can reaConverter convert LAS to CG4?
Yes! reaConverter instantly converts .las to .cg4 with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.
What is reaConverter used for?
reaConverter is a Windows converter for 800+ formats, GIS data among them. For LAS to CG4 it replaces the usual detour through QGIS, ArcGIS or ogr2ogr: add the files, pick the output format, and the whole batch converts offline. Surveyors, planners and engineering teams use it to pass data between GIS, CAD and everyday document formats.
Why choose offline conversion with reaConverter?
reaConverter is a software program that is used for offline files conversion. Your proprietary documents never leave your computer – essential for architects, engineers, healthcare and government contractors handling classified projects. Meets GDPR, HIPAA, CCPA, and corporate security policies by ensuring files never cross borders or third-party systems.
Can I convert LAS to CG4 online?
If you only need to convert a few LAS files to CG4 format, feel free to try our free online free online LAS to CG4 converter — perfect for small batches with no installation needed!
How can I turn LAS files into CG4 on my computer?
The best way to change LASs to CG4s on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from LAS to CG4.
How can I automate LAS to CG4 files conversion?
reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.
Is there a way to convert LAS files to CG4 using the command prompt?
reaConverter provides full access to all its features via Windows command line, including a high-performance command-line las to cg4 converter for batch processing.
What else can I do with reaConverter?
Change format settingsCopy metadata (EXIF, IPTC)Vectorize imagesSet bit depthConvert CAD formats
Related conversions
Other ways to convert LAS files, and other sources that convert to CG4.
