README.md

Tile Stitch

Tile Stitch is a tool aimed at replacing tiles inside a given mbtiles file with tiles from another set of tiles, using a polygon to mask the stitching area and merge if needed contents from both sets of boundary tiles.

Getting Started

Prerequisites

This project in based on NodeJs

This project use Tippecanoe and GDAL

Installation

    git clone https://github.com/gencat/ICGC-tile-stitch.git
    cd ICGC-tile-stitch
    npm install

Configuration

Edit config.js

f.mbtiles_ori = './icgc.mbtiles'; // your local tiles
_f.mbtiles_dest = './europe_spain.mbtiles'; // Country Mbtiles from OpenMaptiles
_f.pol_cat = './CAT_plus_box.geojson'; //clipping polygon
_f.mbtiles_planet = './planet.mbtiles'; //full planet from OpenMaptiles
_f.zoom_levels = [7,8,9,10,11,12,13,14]; //replace zoom levels

Running

To create stitched tiles

        ./stitch.sh

To replace your local stitched tiles into country tiles

        node mergeMbtiles.js

To replace your country tiles into planet tiles

       node mergePlanet.js

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if your local mbtiles has levels higher than 14 and diferents data models local.mbtiles -> planet.mbtiles

Option A local.mbtiles -> planet.mbtiles

    node addExtraLevelsToPlanet.js

Option B planet.mbtiles -> local.mbtiles tile-join -Z 15 -o ctxmaps15-16.mbtiles ctxmaps_0_5_0.mbtiles

        #extract higher levels

        tile-join -Z 15  -o ctxmaps15-16.mbtiles  local.mbtiles

        #insert planet14 into ctxmaps15-16.mbtiles
        
        sqlite3
        ATTACH "planet14.mbtiles" AS db1;
        ATTACH "ctxmaps15-16.mbtiles" AS db2;
        INSERT INTO db2.tiles SELECT * FROM db1.tiles;

Authors

• Institut Cartogràfic i Geològic de Catalunya

License

This project is licensed under the MIT License - see the LICENSE file for details