[Question] Mapbox vector tile server solution

[pherbel]

Hi,

I would like to create a PoC for .Net based Vector Tile server and serve Mapbox and GeoJson vector tile format. I'm planning to load the map data from OSM with OsmSharp

Do you know a sample about it or could you adjust me to a right direction?

I'm new in the map rendering and vector tile rendering so any help would be awesome.

Thanks

[bertt]

Hi, seems like a nice project :-)
For the server part maybe you can get some inspiration here https://github.com/bertt/MBTiles.Server

What are you planning to use for encoding the vector tiles?

[pherbel]

Yep, interesting project.

What are you planning to use for encoding the vector tiles?

What do you mean by that? On the frontend part or on the backend?

[bertt]

I meant on the server-side, or are you using existing vector tiles?

[pherbel]

First step I want to query the Tile information from OSM dump file by OsmSharp and covert this data to GeoJson and Mapbox Vector tile format.

[xivk]

I'm working on encoding... perhaps will do a pull request here or at least share my code later on...

[pksorensen]

I was just looking for a way to write (encode) into protobuf tiles from a similar data stucture (classes) as in this library. How far are youwith encoding? @xivk

[xivk]

I have some code to share but it's extremely hacky and dirty for now, more a POC than anything else... but it works for linestrings:

https://github.com/itinero/vector-tiles/tree/master/src/Itinero.VectorTiles.Mapbox

You can see it in action here:

http://routing.anyways.eu/#15.13/51.2621/4.7874

The roads data only comes from one of the Itinero route planning instances, the rest from open vector tiles.

[pksorensen]

Cool. Though I vent with a node interop solution :) using NodeServices in dotnet core. So i send the tile as json to node which encodes it using the following function

var vtpbf = require('vt-pbf')

module.exports = function (callback, tile) {
    var buff = vtpbf.fromGeojsonVt({ 'geojsonLayer': tile });
   // buff.pipe(callback.stream);
    callback(/* error */ null, buff);
};

Was alot faster then coding it in c# :)

[xivk]

Yeah for sure, perhaps a bit different for me, I need a high-performing way of generating the tiles without first encoding them as json directly from a routing database.

That's also why I probably won't be submitting a pull-request here but feel free to reuse whatever code you find in this project (in whatever license you want):

https://github.com/itinero/vector-tiles/tree/master/src/Itinero.VectorTiles.Mapbox

[pksorensen]

I ported GeoJSON-VT to c# some time ago and just wanted to be able to save the data as pbf files :) But thanks for the effort, i am sure that it also will benefits others :)

[andreschardonguwo]

hello @pksorensen . I'm very interested in your solution. Are you using your GeoJSON-VT to c# and then node + vtpbf ? Did you succeed? Thanks!

[pksorensen]

Ye, i can put it up online in the weekend with some examples. Ping me again in the weekend to ask for progress :)

I ported the GeoJSON-VT from JS to C#, then extented it to work with custom projections and generate pbf vector tiles to file system that can be hosted on a file host like Azure BlobStorage eller amazon.

[andreschardonguwo]

Nice! Is your GeoJSON-VT port public? O would you be willing to share it?

[andreschardonguwo]

Dear Poul, Thank you so much. I will for sure check back :) Thank you so much! Andre Schardong www.andreschardong.com andreschardong@gmail.com +1 (226) 272-0040

…

On 21 February 2017 at 09:01, Poul Kjeldager Sørensen < ***@***.***> wrote: Ye, i can put it up online in the weekend with some examples. Ping me again in the weekend to ask for progress :) I ported the GeoJSON-VT from JS to C#, then extented it to work with custom projections and generate pbf vector tiles to file system that can be hosted on a file host like Azure BlobStorage eller amazon. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#9 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AWBvnetp2emP3Co3fCnfjPC5SBrYWg-7ks5reu5KgaJpZM4L5j5K> .

[andreschardonguwo]

Hi Poul, Just checking if you had some time to look into this. so sorry bothering you. Regards Andre Schardong www.andreschardong.com andreschardong@gmail.com +1 (226) 272-0040 On 21 February 2017 at 13:01, Andre Schardong <andreschardong@gmail.com> wrote:

…

Dear Poul, Thank you so much. I will for sure check back :) Thank you so much! Andre Schardong www.andreschardong.com ***@***.*** +1 (226) 272-0040 <(226)%20272-0040> On 21 February 2017 at 09:01, Poul Kjeldager Sørensen < ***@***.***> wrote: > Ye, i can put it up online in the weekend with some examples. Ping me > again in the weekend to ask for progress :) > > I ported the GeoJSON-VT from JS to C#, then extented it to work with > custom projections and generate pbf vector tiles to file system that can be > hosted on a file host like Azure BlobStorage eller amazon. > > — > You are receiving this because you commented. > Reply to this email directly, view it on GitHub > <#9 (comment)>, > or mute the thread > <https://github.com/notifications/unsubscribe-auth/AWBvnetp2emP3Co3fCnfjPC5SBrYWg-7ks5reu5KgaJpZM4L5j5K> > . >

[pksorensen]

Ye, i put the code at https://github.com/EarthML/EarthML.SpatialCluster but at this point its more a proof of concept. There is a sample application that can take a point.geojson file and tile it up aswell as do some simple XY clustering.

[bertt]

well some examples for vector tile servers are given so closing this issue