tippecanoe | Build vector tilesets from large collections | Android library
kandi X-RAY | tippecanoe Summary
kandi X-RAY | tippecanoe Summary
-n name or `--name=`name: Human-readable name for the tileset (default file.json). -A text or `--attribution=`text: Attribution (HTML) to be shown with maps that use data from this tileset. -N description or `--description=`description: Description for the tileset (default file.mbtiles).
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QUESTION
I have two large-ish data frames I am trying to append...
In df1, I have state codes, county codes, state names (Alabama, Alaska, etc.), county names, and years from 2010:2020.
In df2, I have county names, state abbreviations (AL, AK), and data for the year 2010 (which I am trying to merge into df1. The issue lies in that without specifying the state name and simply merging df1 and df2, some of the data which I am trying to get into df1 is duplicated due to there being some counties with the same name...hence, I am trying to also join by state to prevent this, but I have state abbreviations, and state names.
Is there any way in which I can make either the state names in df1 abbreviations, or the state names in df2 full names? Please let me know! Thank you for the help.
Edit: dput(df2)
...ANSWER
Answered 2022-Apr-18 at 03:52Here's one way you could turn state abbreviations into state names using R's built in state vectors:
QUESTION
We're using ogr2ogr
and tippecanoe
to generate MBTILES files and then uploading them to Mapbox. This incurs Mapbox's recent-ish tile processing and hosting costs.
We've been hit by a couple of surprise bills. We can work around this by following the advice on https://docs.mapbox.com/help/troubleshooting/manage-tileset-costs/#how-do-i-lower-my-tileset-processing-costs.
But there doesn't seem to be an obvious way to estimate tile processing costs before the upload occurs. I'd like to display the tileset's kilometers squared figure, resolution, and calculate a cost to show to our team before the upload occurs.
Does anyone know how this could be achieved?
...ANSWER
Answered 2021-Apr-28 at 08:54Turns out Mapbox does have a tool for this, but it's not linked from any of their documentation.
See https://github.com/mapbox/tilesets-cli/#estimate-area
Example usage:
QUESTION
I am using Azure Maps, and want to display vector tiles that I have generated with tippecanoe.
I was initially getting an error in Azure Maps in the frontend javascript, which was basically complaining the generated pbf were not acceptable, because it was compressed. I fixed that.
Now, the frontend javascript does not throw any error, except when it cannot find a z/x/y pbf file.
When it does not throw any errors in the javascript console.log, it does not display any vector from the vector tile pbf.
What I think I am not getting right is the sourceLayer that goes into the javascript.
...ANSWER
Answered 2021-Feb-27 at 00:57Some things to try:
One possibility is the zoom range of data in the vector tiles and the max zoom setting you have on the source. Max zoom on the source specifies the closest zoom level the source data is available for. Looking at your polygons, they would be small, but visible at zoom level 12, when zoomed out a two or more levels though, they end up being really small.
Double check the settings you used to create your vector tiles and ensure you have them available at zoom levels 12 or more zoomed out (i.e. 11, 10...)
Check the network calls to verify if your vector tiles are being requested.
Double check the source layer ID in your vector tiles and make sure it is identical in the Polygon layer.
Zoom the map where you expect the data to be (south, east Colorado) and make sure not to zoom in too much, then try this line of code in the browsers console. It should retrieve all features in the datasource that are being rendered.
map.map.querySourceFeatures(datasource.getId(), { sourceLayer: 'Feature'})
QUESTION
I am working on this project where I want to add relatively dynamic data (updating every 15minutes) to a mapbox-gl via a serverless solution. I followed this excellent guide on creating serverless vector tiles and have the base tiles working.
My question is now how would you achieve adding a geojson point layer to the map (hosted on a simple HTML page), using something like:
...ANSWER
Answered 2020-Apr-16 at 02:00After quite a lot of blind trial and error, finally figured out a solution. Turns out my original script was trying to load the layer to the map on-load. However, the tile base load is configured via the style and tile files pre-load.
Therefore, the js addSource needs to be added to the map post-load and then style on-load.
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