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Hi I am having issues making the areas on the map shaded as cities within the boundary of a county. I am using DD coordinates (40.634830794 -80.07583303) to map the area. However, of the 130 cities/municipalities, I only used 14 to test. Do I have to add in the other 116 to get proper shading? I am trying to highlight the municipalities that responded to a survey.
Hi, Tableau ships with city points but not shapes/polygons. (Including city shapes would drastically increase the size of the install). You’ll need to download a spatial file (for example from a state GIS website) and then relate or join that to your data.
I downloaded a list of the Counties from Wikipedia and dumped them into Tableau and got this:
So, Tableau has a reference for something Scottish, but not exactly what my name list was (if I change Edinburghshire to Midlothian then I get an outline for that as well, so it may just be conventions). So, it might be a matter of checking your County names in your data (also check for dodgy spaces at the end of names and stuff), or, if you do need to provide your own boundaries then maybe SpatialData.gov.scot might be of use.
I am afraid of errors and slow performance in Tableau. The performance of my current earthquake layer is not strong; adding so much new data can be an issue.
There can be several ways of accomplishing what I want.
Connect 500+ files in Tableau. Do you have experience of such action?
Upload data from/like Arcgis has
Find and upload data from any other source
Could anybody help with one topic from above or share some advice?
I can see in the dashboard that the Pages Shelf is in use for the year...if you're interested in the fastest possible rendering I'd suggest turning that off and just using a slider filter. The reason why is that the Pages Shelf tells Tableau to query for all of the "pages" at once so the view is slow to load for the first page and then can quickly "play" through the other pages. An alternative can be to use a slider filter.
The second part is that with the earthquakes and wells there are thousands of data points. If we're drawing them individually then when we're at the level the whole state a lot of them become invisible because they are drawn on top of one another, like selecting this area in 2024 there are 4,161 marks:
It can be faster to use density marks or do some sort of grouping, lat/lon binning or hex binning so that Tableau is ultimately rendering fewer marks.
However when I'm running Tableau Desktop v2024.2 Apple silicon (the native version) when I open the same workbook I run into the following issue where Tableau will do the standard prompting for the username & password on open but then say it needs a driver:
However when following the links so far as I can tell there is no driver from MongoDB that is Apple silicon native, they are all x86 drivers that require Rosetta (and so far as I can tell the Tableau v2024.2 Apple silicon releases requires an Apple silicon/ARM driver.).
I've read all of these other posts that refer to using the MySQL 8.0.33 driver, however that driver version is also x86 and not compiled for Apple silicon/ARM.
And I've tried installing the MongoDB BI Connector however that uses an outdated version of OpenSSL (another indication that MongoDB isn't staying up to date).
How would I connect Tableau Desktop v2024.2 for Apple silicon to MongoDB?
If this post resolves the question, would you be so kind to "Select as Best"?. This will help other users find the same answer/resolution and help community keep track of answered questions. Thank you.
If this post resolves the question, would you be so kind to "Select as Best"?. This will help other users find the same answer/resolution and help community keep track of answered questions. Thank you.
Is it possible to create a straight line on a map using the Makeline function?
I want to create straight lines from points within the countries to a longitude of -30 (see Figure). I generated the start and end points using the Makepoint function, and then used these points to create the lines with Makelines.
Why do I need these straight lines? The goal is for the lines to align with a graph that I plan to position to the right of the map. The curved lines does not match with the graph.
Hi, Tableau's MAKELINE() automatically computes great circle routes so to get straight lines we need to use the Line mark type *and* to draw the lines that we need separate rows in the data for the start & end points. So I self-unioned the mocked up data then created a calculation to give me the desired end longitude, then built a view:
I've attached a Tableau packaged workbook, hope this helps!
PS: in the future please provide at least sample data if not a Tableau packaged workbook, that will make it faster/easier for the forums volunteers like myself to help you.
Hi, Tableau's MAKELINE() automatically computes great circle routes so to get straight lines we need to use the Line mark type *and* to draw the lines that we need separate rows in the data for the start & end points. So I self-unioned the mocked up data then created a calculation to give me the desired end longitude, then built a view:
I've attached a Tableau packaged workbook, hope this helps!
PS: in the future please provide at least sample data if not a Tableau packaged workbook, that will make it faster/easier for the forums volunteers like myself to help you.
My language is English, but the language of country names in the map is also Chinese, I have tried to install Tableau again but it had no effect.My computer is macbook air.
Hi, if you're on Tableau Desktop then you need to check your locale settings (Language & Region) in macOS vs. the File->Workbook Locale setting in Tableau Desktop.
If you're logged into Tableau Server and viewing a visualization then you need to look at the combination of the Tableau Server defaults, your user Locale setting on Server, and whether the workbook has overridden the default with File->Workbook Locale.
Hi, if you're on Tableau Desktop then you need to check your locale settings (Language & Region) in macOS vs. the File->Workbook Locale setting in Tableau Desktop.
If you're logged into Tableau Server and viewing a visualization then you need to look at the combination of the Tableau Server defaults, your user Locale setting on Server, and whether the workbook has overridden the default with File->Workbook Locale.
I had a problem with the split function in Prep since it only outputs 150 users, that's why I used excel to split the users. Have you experienced the same scenario?
@Ervin Lloyd Vinzon (Member) that's a long-standing limitation of Prep's SPLIT() function. Using MID() and FINDNTH() to create sub-strings and the splitting those usually works.
Thank you. I added an idea so you can pin your Prep Flows on your home/welcome screen like you can in Tableau Desktop. I just realized today that I wanted to pin a few and couldn't. In Tableau Desktop, you can hover over a thumbnail and choose to Pin or remove a shortcut on your home screen and it looks like this: but in Tableau Prep, I don't see any such feature to keep certain flows always on your home screen. You can remove them, but you can't pin them.
I'm shocked they have gone this long not attempting to make the interface similar with Desktop.
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Hi, Tableau ships with city points but not shapes/polygons. (Including city shapes would drastically increase the size of the install). You’ll need to download a spatial file (for example from a state GIS website) and then relate or join that to your data.