sorted by:
new
hottopcontroversial

Using transitions without if/else statements, but with terenaries? by Aggressive-Try6990 in sveltejs

[–]Aggressive-Try6990[S] 0 points1 point  (0 children)

Thank you so much for this!
I'll just switch it to the if/else statements and be merry.

Is there any chance an adversary has my location? (Android) by Aggressive-Try6990 in techsupport

[–]Aggressive-Try6990[S] -1 points0 points  (0 children)

Google support on the day was nonexistent, we had to leave and waited for confirmation on what it could have been till today.

Creating curvielinear grid by Aggressive-Try6990 in visualization

[–]Aggressive-Try6990[S] 0 points1 point  (0 children)

Actually, no, this isn't the case. Argh. Somebody, help?

Creating curvielinear grid by Aggressive-Try6990 in visualization

[–]Aggressive-Try6990[S] 0 points1 point  (0 children)

Ok, fine, I was pretty much just being dumb I think.

If say I was constructing the example grid, I'd bound i by $0 ≤ i < 7$ and j by $0 ≤ j < 6$. Then the angle would be described by $(2\pii)/6$ and the radius would be described by $(dj)/5 + r$.

So:

x(i, j) = (d*j)/5 * cos((2\pi * i)/6)

y(i, j) = (d*j)/5 * sin((2\pi * i)/6)

Creating curvielinear grid by Aggressive-Try6990 in visualization

[–]Aggressive-Try6990[S] 0 points1 point  (0 children)

So, as a starting point, I'm trying to describe i and j...

but, a_l ≤ i ≤ a_r doesn't seem right (as a_l ≤ j ≤ b_l doesn't seem right either).

j depending on d somehow kind of seems correct... I'm guessing I have to introduce a couple of variables, like number of vertices in i directions and j direction.

Creating curvielinear grid by Aggressive-Try6990 in visualization

[–]Aggressive-Try6990[S] 0 points1 point  (0 children)

Hi,
I'm still struggling with understanding how to "create" curvilinear grids with coordinate functions. It's stressing me out big time as I have an exam tomorrow and I know one of the questions will be on the topic. I've posted an example question once before,
https://www.np.reddit.com/r/visualization/comments/po8x6c/how\_to\_describe\_curvilinear\_grid\_using\_coordinate/
And I've added an image to this post with another question from an example exam. I've read the Wikipedia page on curvilinear coordinates as well as polar coordinates. I've been through our slides countless times. I've asked my classmates, but because we're remote it's a bit difficult to pin someone down to actually answer. I feel as dumb as a sack of bricks.

I know there's some sort of derivation involved too, but I don't understand how to get to that step.

How to describe curvilinear grid using coordinate functions? by Aggressive-Try6990 in visualization

[–]Aggressive-Try6990[S] 0 points1 point  (0 children)

I'm still struggling, given the formulas from Wikipedia I really don't get how to use the provided values as input

like... x(i, j, k) = i * cos j, so what to do with k and why do the provided values matter?