Change Logs

Coaster Fusion

These are the changes related to the algorithm that generates the roller coaster analysis. You do not need to upgrade — any track uploaded will be analysed using the latest algorithm.

Coaster Logger

These are the changes to the Coaster Logger app — usually pertaining user interface and user facing feature changes.

    • Export beautiful poster-style images and reel-style videos of tracked 3D coaster models with the new advanced composer — with full control the model, colours, background, text and watermark.

    • Indication when an analysis is being downloaded.

    • Improved clarity around location permission prompting.

    • Enhanced button clarity when viewing plots.

    • Streamlined the coaster track renaming experience.

    • Improved lifetime trend plots to better handle large gaps between coaster rides.

    • Fixes an issue where the scream loudness during your coaster ride is not captured.

    • Fixes a bug where the Hyper, Giga and Strata coaster badges are computed incorrectly. You may have to track your next coaster after this update for this bug fix to apply.

    • Fixes a bug where the Astronaut badge is computed incorrectly. You may have to track your next coaster after this update for this bug fix to apply.

    • Fixes a bug where the local time of the roller coaster is not displayed properly.

    • Fixes a bug in the airtime visualisation widget.

    • Additional tips and hints shown throughout the interface.

    • Improved handling of timestamps when you have ridden roller coaster across multiple time zones.

    • Improved reliability of Watch Only recording transfer.

    • Improved permission prompting when using the Watch to recording.

    • Bug fixes

    • Updated Samples

    • Fixes an issue where the Sample Gallery would not load.

    • Fixes an issue with coaster filtering

    • Initial release.

    • Improved reward function when integrating acceleration information, taking into account barometer information:

      • iPhone enhancements, specifically in GPS-denied environments (e.g. indoor rides) (415bfb18)

        • 6% improvements in coaster shape estimation.

        • 4.5% improvements in speed estimation.

        • 7.6% improvements in coaster length estimation.

      • Apple Watch specific enhancements (37f150f1)

        • A 42% reduction in the RMSE of maximum height estimation.

      • Overall improvement across the entire validation dataset (d8b4305c)

        • General coaster shape expected to improve on average by 3%, with minimal improvements to height estimation (<1%).

        • 3.5% improvement in speed estimation expected.

    • More tolerant to large and variable gaps in barometer measurements, especially from Apple Watches. However, note that the altitude information will be degraded accordingly.

    • Enhanced walking detection algorithm to improve recording trimming, allowing the analysis the focus on the true roller coaster portions.

    • Fixes a critical issue where Watch Only recordings of coasters will not parse at all.

    • Improved representative point calculation, using all available GPS points during the recording, not just the ride portion.

    • Fixes a critical issue with Watch recordings exhibiting incorrect altitude fusion due to coordinate system mismatch.

    • Initial release.

Note: Updates to Coaster Fusion will not alter old analysis, though you can always re-upload theme for analysis. Once re-uploaded, though, you will not be able to go back to the previous analysis.