How to build a GPX route and load it into a navigator, a watch or a phone: track vs route vs waypoints, the GPX folder on a Garmin device, importing into Suunto and Coros, OsmAnd and Locus.
How to convert GeoJSON into DXF and DWG: why degree coordinates produce a drawing a fraction of a unit across, reprojection to metres in one ogr2ogr command, longitude-latitude order, polygons with holes.
How to bring OpenStreetMap buildings and terrain into SketchUp via COLLADA, OBJ or glTF: import, units and scale, geolocating the model, building heights and taming a heavy scene.
OSM maps for Navitel: why OpenStreetMap data cannot be dropped into the app directly, where map files go (the NavitelContent/Maps folder) and how to import points and routes via GPX.
How to convert SHP to DXF and DWG: why a shapefile is a set of files, what breaks without the .prj, import via MAPIMPORT, QGIS and ogr2ogr, layer splitting and what happens to attributes.
How to convert KML or KMZ into DWG and DXF without losing coordinates: unpacking KMZ, reprojecting to metres in QGIS or ogr2ogr, layers and labels. Why a direct import gives a drawing a fraction of a unit across.
How to place a topographic survey onto a plan in AutoCAD so it lands in real coordinates: XREF, units, local CRS vs WGS-84, two-point alignment. And what to do when there is no survey.
Opened an .osm or .pbf in QGIS but the multipolygons layer is missing? Here are the causes and the fastest fix — build the area you need in our map builder and get a file with buildings, water and greenery already in place.
PostGIS queries from beginner to advanced: ST_Intersects, ST_Buffer, ST_Distance, spatial indexes, performance optimization.
How to use the osm2cdr.ru API for map export. Getting an API key, POST /api/render, status polling, downloading. Python and JS examples.
How to load OpenStreetMap data into QGIS, configure layer styles and export maps. Step-by-step guide with examples.
How to automate batch OpenStreetMap map export via REST API. Python and curl examples, batch endpoint, rate limits by tier.