I'd like to see if I could use Tableau and some of its remarkable mapping functions for Triangulation. This could have many uses, such as locating the epicenter of an earthquake.
This is my thought:
- Using the map, the user would "plop" down the center of the first circle.
- By using a parameter (or even better: by dragging), the user would determine the radius of the circle.
- Note: the radius of the circles would remain constant regardless of magnification level; in other words, as you zoom in, the circle gets larger.
- User would repeat this process for up to 3 bubbles.
Thereafter, the user could zoom in to determine points of intersection. Finished product may look something like this:
Challenges: "plopping down the center" proved to be difficult. I made a work-around by creating 9 parameters (Latitude A,B,C; Longitude A, B, C; and Radius A, B, C). It's unlikely that the user will know the Latitude & Longitude, however: far more reasonable for him/her to know the center point is "the corner of Main & Tableau Terrace."
If Tableau isn't the right tool for this job, that's cool, too. I'm curious to see if any of you could help me crack this!
Hi Patrick and thank you for your response.
You are correct-- I'm afraid I don't have any underlying data at this point: it's a project dependent on user-entered values.
Unfortunately, we know Tableau's not so good at that (filters: YES, parameters, YES: but point-and-click/user-enter-values: not so much).
I'll check out your recommendation (Thank You!) and see if it can solve all my woes
If not, maybe I'll bring this to the 2016 Conference and see what I can find?
