@federicomena I am focusing on the tessellation/rendering part, the parser I use (mostly for testing) is not actually mine: http://crates.io/crates/svgparser
I think that it's a good crate for the little use I have had of it so far.
The lyon_bezier crate might be interesting for you, maybe? https://docs.rs/lyon_bezier it contains 2d line/bezier/arc math.
https://docs.rs/lyon_path_builder/ and https://docs.rs/lyon_path_iterator/ are generic utilities to build and iterate over paths.