What to do with my fork?

[pbsurf]

I've been doing quite a bit of work on Tangram-ES over the past couple of years at pbsurf/maps as part of building Ascend Maps (sorry for the confusing repo names!)

Major changes include:

• 3D terrain support (incl. label occlusion, sky, etc.)
• eliminating duplicate tile loads (when a source is used multiple times)
• tile level-of-detail based on screen area (in pixels**2)
• try proxy tile if tile loading fails (for better offline support)
• TIFF and LERC raster support
• GLES 3 support
• support for native scene style functions (performance improvement over JS)
• support for MBTiles as cache for online source, incl. last access tracking and max-age
• optional fallback marker shown when a marker is hidden by collision
• support for zoom_offset < 0 (for better satellite imagery resolution when pixel scale > 1)
• contour line label support
• support JS function for generating tile URL (per tile)
• $latitude, $longitude in scene style for location dependent styling adjustments
• support SVG images embedded in scene style (with external SVG renderer, e.g., nanosvg)
• support for fixed boolean values in filters to allow use of scene globals
• canceling all URL requests when destroying Scene
• misc optimizations based on profiling
• support plain makefile build
• fix some proxy tile issues (e.g. cycles)
• fix some issues when very large number of labels present
• fix some crashes related to async Scene destruction

Everything: https://github.com/pbsurf/maps/compare/076b273..77d4834

I feel that with active development this is a viable alternative to MapLibre Native, especially considering that the latter does not yet support 3D terrain.

My question: would there be any interest in merging these changes? I would of course take responsibility as a maintainer.

If not, would something like "Tangram-NG" (next gen) be an acceptable name for my fork? I feel like a completely new name would inappropriately discount all the previous work on Tangram-ES.

[matteblair]

Hi! Thanks for letting me know about this. I can see this is quite a bit of work, and I appreciate that you want to share it.

I'm going to take a look at these changes and check with the other original authors before I give an answer on what to do with this. Thanks for your patience : )

[pbsurf]

Sure, no hurry - I'd be happy to provide more explanation about anything. There are definitely things I'd need to clean up if this was going to be merged.