Fix inconsistent scrolling/inspecting behavior in charts #455

Chepycou commented 2024年12月05日 08:59:47 +01:00

Description

This problem occurs at least in the weight chart (which is the one I mainly use).
When a user taps on the screen, it can be to move around in the graph with one finger or to have a more precise look at the values. This means that more often than not, the opposite of what is intended will happen. This behavior is quite unpredictable due to the fact that the outcome depends on if the user is on the edge of a chart and swipes in the opposite direction of that edge, for instance.

Solution attempts

• One way of solving this would be to make the graph area not scrollable and use a miniature scrollable replica of the chart at the bottom an example would be how this site handles it.
• Another way would be to have two modes : one "scroll mode" in which finder swipes are meant to move around the chart, zoom in/out etc. and one "inspect mode" in which the user can see his value precisely by moving the cursor without risks of moving the window

## Description This problem occurs at least in the weight chart (which is the one I mainly use). When a user taps on the screen, it can be to move around in the graph with one finger or to have a more precise look at the values. This means that more often than not, the opposite of what is intended will happen. This behavior is quite unpredictable due to the fact that the outcome depends on if the user is on the edge of a chart and swipes in the opposite direction of that edge, for instance. ## Solution attempts - One way of solving this would be to make the graph area not scrollable and use a miniature scrollable replica of the chart at the bottom an example would be how [this site](https://www.root-me.org/ENOENT?inc=statistiques&lang=en) handles it. - Another way would be to have two modes : one "scroll mode" in which finder swipes are meant to move around the chart, zoom in/out etc. and one "inspect mode" in which the user can see his value precisely by moving the cursor without risks of moving the window

toz commented 2025年01月05日 19:16:05 +01:00

I think I know what you mean, a quick flick will always scroll the chart for me, but when I click longer and move my finger then it's unpredictable if it's the vertical line which will move or the chart which will scroll.
I need to think about this some more, this might be an issue of the underlying chart library which is still in beta.

I think I know what you mean, a quick flick will always scroll the chart for me, but when I click longer and move my finger then it's unpredictable if it's the vertical line which will move or the chart which will scroll. I need to think about this some more, this might be an issue of the underlying chart library which is still in beta.