Mapiah

User-friendly multiplatform interface to the powerful Therion mapping software.

As an intended side effect, it aims to completely replace xTherion, the venerable but ostensibly ancient Therion graphical interface.

Also create a thriving community of users and developers to make it as powerful and user friendly as such community needs and creates.

Interesting characteristics:

• Visually distinguish all point, line, and area types supported by Therion.
• Graphical interface for editing all supported options of points, lines, and areas supported by Therion.
• Multiple mouse and keyboard pan and zoom options.
• On save, original file lines are only changed if an actual edit modified them, which facilitates version control management.
• Uses Therion as the source of truth regarding supported features; i.e., if Therion supports it, Mapiah should support it as well. As a secondary effect, tries to update and detail the Therion Book so it better reflects Therion features.
• Equivalent versions for Linux, Windows, macOS, and web.
• Unlimited undo/redo.
• Redos available after some undos and new actions merged in the undo queue.