Explicit georect bounds for output

[oKcerG]

Hello,
Thanks for this project, I'm having fun with it trying to generate gifs of the different type of rides I do.

One feature that I think might be useful is specifying the geographic bounds of the output image, not just the bounds for selecting activities.

It might be useful if you want to overlay the gif on another image (map tiles for example) or if you want to combine multiple rainbow-roads gifs together (one after the other or one on top of the other) and have the same bounds on them (not depending on the implicit bounds of all their activities).

One usecase I have is to show my activities for my commute to work followed by the activities for my commute back home.

Cheers

[NathanBaulch]

I did think about that but ultimately let the map extents automatically fit the data. I agree, this sounds useful if you want to animate different data with consistent bounds, for example if you generated a new map for each year.

Semi-related - I'm thinking about an option to stitch non-overlapping activities on the same day together so they're animated consecutively. So your work rides would be glued together (assuming same day). Does that help?

[oKcerG]

The option to stitch non-overlapping activities on the same day sounds interesting. How would be the option to use it look like in the cli?

Currently I am stitching 2 gifs file with -starts_near <home_region> -ends_near <work_region> and then -starts_near <work_region> -ends_near <home_region>. I have other rides on the same days that I don't want to include in the visualization (various errands, road rides, ...).

Another argument for the "georect" bounds would be to change the aspect ratio of the output, my commute is on the North/South axis so it produces a very thin gif.
Here's a comparison of the default output and one generated with a quickly hacked in -output_bounds option:
Default:

Bounds:

My stitched commute rides: