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phetsims / collision-lab

"Collision Lab" is an educational simulation in HTML5, by PhET Interactive Simulations.
GNU General Public License v3.0
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Increase width of momentum vectors #130

Closed arouinfar closed 4 years ago

arouinfar commented 4 years ago

@brandonLi8 this was discussed a bit in a previous design meeting, but I don't think it ever made it onto GitHub. Currently, the momentum and velocity vectors have the exact same width, which can make it challenging to see the momentum vector. For example: image image

Can you increase the overall size of the momentum vector so it is more visible? Here are some rough mockups. Essentially, the tail of the momentum vector is a bit wider, and the head is overall a bit larger to maintain the same rough proportions. The same changes can apply to the Change in Momentum vector too.

image image

Since this polish improves usability, I think it would be nice to address before publishing a prototype.

arouinfar commented 4 years ago

@brandonLi8 when I created this issue, I hadn't seen https://github.com/phetsims/QA/issues/524. If this is an easy change to make, I still think it might be nice to do before publishing the prototype to the website, but I'll defer to you.

brandonLi8 commented 4 years ago

This sounds like it should be relatively easy. Doing this next.

brandonLi8 commented 4 years ago

Done in the commit above. Assigning back to @arouinfar for review in master.

arouinfar commented 4 years ago

Looks great in dev.33, thanks @brandonLi8.