FAQ
TOPOJSON to HPG Conversion
What are TOPOJSON files?
TOPOJSON is a compact text format for maps whose areas touch each other, such as countries, states, or districts. It extends GeoJSON with one important idea: instead of writing the outline of every area separately, it writes every shared border only once, and each area then lists the pieces of border it is made of. This removes the duplicate lines between neighbors, so a TopoJSON file is often many times smaller than the same map in GeoJSON, and it also keeps the information about which areas share a border. Because of its small size, the format is popular for maps on web pages, where files have to be downloaded quickly. The files have the .topojson extension, although .json is also used.
What are HPG files?
HPG is a vector image format created in a standard programming language called HPGL (Hewlett-Packard graphics language). Other extensions created in this language include PLT, HP2 and PL2. All are called "plotter files" and are created by drawing programs such as AutoCAD to be printed using a device specialized in vector graphics. An HPG file uses a line series of two-letter codes to render an image and can also include parameters.
Can reaConverter convert TOPOJSON to HPG?
Yes! reaConverter instantly converts .topojson to .hpg 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 TOPOJSON to HPG 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 TOPOJSON to HPG online?
If you only need to convert a few TOPOJSON files to HPG format, feel free to try our free online free online TOPOJSON to HPG converter — perfect for small batches with no installation needed!
How can I turn TOPOJSON files into HPG on my computer?
The best way to change TOPOJSONs to HPGs 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 TOPOJSON to HPG.
How can I automate TOPOJSON to HPG 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 TOPOJSON files to HPG using the command prompt?
reaConverter provides full access to all its features via Windows command line, including a high-performance command-line topojson to hpg converter for batch processing.
What else can I do with reaConverter?
Convert GIS filesConvert raster to vectorChange bit depthConvert DICOM imagesCrop images
Related conversions
Other ways to convert TOPOJSON files, and other sources that convert to HPG.
