Third party software and data

Enroute Flight Navigation builds on numerours open-source software components and on open-source data.

Geographic maps

As a flight navigation program, Enroute Flight Navigation heavily relies on geographic map data. The geographic maps are not included in the program, but are downloaded at runtime. They are compiled from the following sources.

• The base maps are modified data from OpenMapTiles, published under a CC-BY 4.0 design license.

• The aviation maps contain data from openAIP, licensed under a CC BY-NC-SA license.

• The aviation maps contain data from open flightmaps, licensed under the OFMA General Users´ License.

Software and data included in the program

Depending on platform and configuration, the following components might be included in the installation of Enroute Flight Navigation.

• Adobe Glyph List For New Fonts. BSD 3-Clause “New” or “Revised” License.

• Anti-aliasing rasterizer from FreeType 2. Freetype Project License or GNU General Public License v2.0 only.

• Bitstream Vera Font. Bitstream Vera Font License.

• BLAKE2 (reference implementation). Creative Commons Zero v1.0 Universal or Apache License 2.0.

• Catch2. Boost Software License 1.0.

• Clip2Tri Polygon Triangulation Library. MIT License.

• Clipper Polygon Clipping Library. Boost Software License 1.0.

• Cocoa Platform Plugin. BSD 3-clause “New” or “Revised” License.

• Cycle. MIT License.

• Data Compression Library (zlib). zlib License.

• DejaVu Fonts. Bitstream Vera Font License.

• Earcut Polygon Triangulation Library. ISC License.

• Earth Gravitational Model. Public Domain.

• Easing Equations by Robert Penner. BSD 3-clause “New” or “Revised” License.

• Efficient Binary-Decimal and Decimal-Binary Conversion Routines for IEEE Doubles. BSD 3-clause “New” or “Revised” License.

• extra-cmake-modules. BSD-3-Clause.

• fontawesome. SIL Open Font Licence 1.1.

• forkfd. MIT License.

• Freetype 2. Freetype Project License or GNU General Public License v2.0 only.

• Freetype 2 - Bitmap Distribution Format (BDF) support. MIT License.

• Freetype 2 - Portable Compiled Format (PCF) support. MIT License and MIT Open Group variant.

• Freetype 2 - zlib. zlib License.

• geosimplify-js polyline simplification library. geosimplify-js License.

• Google Fonts. Apache 2 License.

• Google Material Icon Font. Apache Licence 2.0.

• Gradle wrapper. Apache License 2.0.

• Guidelines Support Library. MIT License.

• HarfBuzz-NG. MIT License.

• IAccessible2 IDL Specification. BSD 3-clause “New” or “Revised” License.

• JavaScriptCore Macro Assembler. BSD 2-clause “Simplified” License.

• jQuery. MIT License.

• KDAB’s helper class for single-instance policy applications. MIT License.

• KWin. BSD-3-Clause.

• libdus-1 headers. Academic Free License v2.1, or GNU General Public License v2.0 or later.

• LibJPEG-turbo. Independent JPEG Group License and BSD 3-Clause “New” or “Revised” License and zlib License.

• LibPNG. libpng License and PNG Reference Library version 2.

• libpsl - C library to handle the Public Suffix List. BSD 3-clause “New” or “Revised” License.

• Linux Performance Events. GNU General Public License v2.0 only with Linux Syscall Note.

• lunr.js. MIT License.

• Material Design Icons. Apache License.

• Material Sphinx Theme. MIT License.

• MD4. Public Domain.

• MD4C. MIT License.

• MD5. Public Domain.

• Metaf library. MIT License.

• Native Style for Android. Apache License 2.0.

• OpenGL ES 2 Headers. MIT License.

• OpenGL Headers. MIT License.

• openSSL library. Apache 2 License.

• OSM Liberty. BSD License.

• PCRE2. BSD 3-clause “New” or “Revised” License.

• PCRE2 - Stack-less Just-In-Time Compiler. BSD 2-clause “Simplified” License.

• Pixman. MIT License.

• Poly2Tri Polygon Triangulation Library. BSD 3-clause “New” or “Revised” License.

• QEventDispatcher on macOS. BSD 3-clause “New” or “Revised” License.

• QHttpEngine. MIT License.

• Qt Toolkit, Libraries and Modules. GNU General Public License v3.0.

• Secure Hash Algorithm SHA-1. Public Domain.

• Secure Hash Algorithm SHA-3 - brg_endian. BSD 2-clause “Simplified” License.

• Secure Hash Algorithm SHA-3 - Keccak. Creative Commons Zero v1.0 Universal.

• Secure Hash Algorithms SHA-384 and SHA-512. BSD 3-clause “New” or “Revised” License.

• Shadow values from Angular Material. MIT License.

• SipHash Algorithm. Creative Commons Zero v1.0 Universal.

• Smooth Scaling Algorithm. BSD 2-clause “Simplified” License and Imlib2 License.

• SQLite. Public Domain.

• sRGB color profile icc file. International Color Consortium License.

• Tango Icons. Public Domain.

• Tango Weather Icon Pack by Darkobra. Public Domain.

• The Public Suffix List. Mozilla Public License 2.0.

• TIFF Software Distribution (libtiff). libtiff License.

• TinyCBOR. MIT License.

• underscore. MIT License.

• Unicode Character Database (UCD). Unicode License Agreement - Data Files and Software (2016).

• Unicode Common Locale Data Repository (CLDR). Unicode License Agreement - Data Files and Software (2016).

• Valgrind. BSD 4-clause “Original” or “Old” License.

• Vulkan API Registry. Apache License 2.0 or MIT License.

• Vulkan Memory Allocator. MIT License.

• WebGradients. MIT License.

• WebP (libwebp). BSD 3-clause “New” or “Revised” License.

• Wintab API. LCS-Telegraphics License.

• X Server helper. X11 License and Historical Permission Notice and Disclaimer.

• XCB-XInput. MIT License.

• XSVG. Historical Permission Notice and Disclaimer - sell variant.