Slightly nicer tensor view

[emilk]

• shorter selector name label
• only show axes on hover
• longer slider

Moving the sliders below the tensor image is difficult in immediate mode. We could move them to the very bottom of the space view area, but I think that would be too far.

Checklist

• I have read and agree to Contributor Guide and the Code of Conduct
• I've included a screenshot or gif (if applicable)
• I've added a line to CHANGELOG.md (if this is a big enough change to warrant it)

[jleibs]

What's the reasoning behind "only show axes on hover?" Like everything this should probably be configurable via blueprint in the long-run.

Maybe I'm wrong, but my intuition is that on average more users would want this to be visible all the time instead of needing to mouse-over the image to find out how things are oriented.

[emilk]

@nikolausWest has the motivation. I think it is "less visual clutter". It's also not something you need to be constantly reminded of. Once you've learned it, you know it.

[jleibs]

Once you've learned it, you know it.

I don't think that's true. Especially when you start to set up multiple different tensor views with different slice permutations.

Needing to mouse over every window and memorize the configuration and hold that in your head while also trying to make sense of the complexity of tensor data projections feels like a bad user experience to me.

I know it's a fine line but I think this is a case of letting design/style get in the way of practical day-to-day utility.

[nikolausWest]

I don't think that's true. Especially when you start to set up multiple different tensor views with different slice permutations.

Needing to mouse over every window and memorize the configuration and hold that in your head while also trying to make sense of the complexity of tensor data projections feels like a bad user experience to me.

I know it's a fine line but I think this is a case of letting design/style get in the way of practical day-to-day utility.

I think longer term it might be nice to have this showing all the time for those that want it. In practice, I've not yet found I have the need to see the axes all the time. It's not so much about design as that these small elements add up, making it so that a large proportion of the view is just padding when you have lots of tensors. Also, I do find that I generally go through a period of inspecting everything to make sure it's correctly set up, followed by just wanting to look at the actual data. When I'm inspecting I absolutely want to know the axes' orientation but after that I don't want to think about it all the time.

[Wumpf]

lgtm.. except those arrows, am I the only one? 😄

[Wumpf]

to me these arrows look flipped, should be

Suggested change

	painter.layout_no_wrap(format!("➡ {height_name}"), font_id, text_color);
	painter.layout_no_wrap(format!("← {height_name}"), font_id, text_color);

(and same below)

[emilk]

The text is at the high end of the scale, and the arrows point in the direction of increase, like most graphs:

What I found confusing is that the X-label is not always printed at Y=0, and the other way around.

In any case, nothing new in this PR.

[emilk]

I fixed the cross-align of them now, and added some ascii art

[nikolausWest]

The dimension indicators seem to overlay on the slider. Can we rearrange stuff to avoid it?

[jleibs]

Can we rearrange stuff to avoid it?

If they didn't need to overlay something we could just leave them visible all the time. I think the choices for overlay are either the tensor itself (which will raise questions of contrast) or the slider.

[emilk]

The dimension indicators seem to overlay on the slider. Can we rearrange stuff to avoid it?

We can add a margin, like we had before (but maybe only at the top).

Or we can have it overlay the image.

[emilk]

I added some margin at the top:

[emilk]

I improved the cross-positioning of the labels: