Hi Frank Bracco,
I'm sorry you had a difficult time working with Mapbox's tools. The Mapbox team has made some great tutorials around styling that you can easily find online. But the quick answer to your question might just be this:
Here is an example of using CartoCSS to style a polygon layer called "Shale_Basins"
There is a field called "Shape_Area" and I've used a numeric value comparison to draw Shale Basins with an Area greater than 10 units the color green.
line-color: rgba(68, 170, 68, 0.5);
If that doesn't help you, try reading over this tutorial.
If you still have problems, just respond to this thread and I'll help you out.
Product Manager, Maps
Hi @Kent Marten, we did indeed look through a lot of MapBox documentation and YouTube videos. The struggle we found is a) our account was v2 (or modern or whatever is called in MapBox) and the functionality didn't seem to match what we were seeing in the documentation. That said, I would again argue that having to write a CSS statement for every Council District (11), every city in the region (dozens), or every voting precinct (hundreds) would be rather cumbersome.
Mapbox GL maps will be supported in Tableau 9.3 (which is in Beta right now), so that is coming soon.
My question is are you trying to build a background map that everyone in your organization could use? Or are you simply wanting the ability to overlay multiple layers in Tableau?
Thanks again for your feedback.
Hey Mark Bowen
Here is another forum post that goes through the workflow using QGIS.
At this point, the KB article does not include all of the available solutions to this problem. As demonstrated at TC15, we're working on native support for Shapefiles. Stay tuned.
Hi @Kent Marten, we were just trying to a background map with a shapefile of our council districts or super neighborhoods with it being called by the council district name or the super neighborhood name. We've previously used the grow your own shapefile methodology and that worked fine for when we wanted to join to data, but in this case we were just looking for a background map/layer.