I've updated my tidal calendar creator so that the UI doesn't suck as much, it outputs PNGs instead of SVGs that nobody can really read, and autoscales according to the data received (rather than hardcoding -3ft and +18ft, which is only reasonable for Puget Sound).

It's also much slower, alas... generating PNGs is not easy. Also, I threw in an expensive antialiasing call in there to make things prettier.

Oh, and because I forgot to mention it earlier: the source code is also up there for the curious. You'll also need the location database I generate for this.