FAQ
GIS to CG4 Conversion
What are GIS files?
GIS is a raster file format used by version 7.x of the ERDAS image processing software, the predecessor of the ERDAS IMAGINE (.img) format. A file of this type holds a single layer of pixels, most often a thematic map in which every value is a class, such as a land cover type, rather than a measured brightness. It is closely related to the .lan format of the same software generation, which stores multi-band satellite imagery such as Landsat scenes. The file begins with a short header that identifies the format version and describes the image size, the pixel depth, and the map location of the grid. Class names and display colors are usually kept in an accompanying file. The format was also supported by other mapping systems, including Arc/Info and ArcView.
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 GIS to CG4?
Yes! reaConverter instantly converts .gis 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 GIS 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 GIS to CG4 online?
If you only need to convert a few GIS files to CG4 format, feel free to try our free online free online GIS to CG4 converter — perfect for small batches with no installation needed!
How can I turn GIS files into CG4 on my computer?
The best way to change GISs 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 GIS to CG4.
How can I automate GIS 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 GIS 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 gis to cg4 converter for batch processing.
What else can I do with reaConverter?
Convert DICOM filesCrop photoChange format settingsCopy metadata (EXIF, IPTC)Convert GIS files
Related conversions
Other ways to convert GIS files, and other sources that convert to CG4.
