OSM Conflation Bridge

OSM Conflation Bridge is a QGIS plugin designed to streamline the process of conflating external datasets (PostGIS, Shapefiles, GeoPackage) with OpenStreetMap. It acts as a live link between your QGIS environment and the JOSM editor, allowing for rapid attribute transfer and geometric alignment.

🚀 Features

• Generic Mapping Engine: Map any QGIS attribute to any OSM tag dynamically.
• Dual-Tab Interface: Separate "Setup" (configuration) from "Browser" (execution).
• Live Geometry Sync: Moving a feature in QGIS automatically updates the location and tags in JOSM.
• Overpass Integration: Automatically identifies existing OSM building IDs at your current location.
• Persistent State: Saves your filters, mappings, and progress automatically between sessions.
• Smart Filtering: Process large datasets by filtering specific attributes (e.g., specific provinces or status codes).

🛠 Installation

1. Clone the Repository:

   cd ~/Library/Application\ Support/QGIS/QGIS3/profiles/default/python/plugins
   git clone [https://github.com/rmic/osm-conflation-bridge.git](https://github.com/rmic/osm-conflation-bridge.git)

2. Enable the Plugin: Open QGIS, go to Plugins > Manage and Install Plugins, and enable OSM Conflation Bridge.

Setup JOSM: Ensure JOSM is running and Remote Control is enabled in the settings (Preferences > Remote Control > Enable remote control

📖 How to Use

1. Configuration (Setup Tab)

• Select Layer: Choose the point layer you wish to conflate.
• Apply Filters: Define which features to process (e.g., province_field == NAMUR).
• Map Tags:
  • Static: Enter a fixed string (e.g., emergency = ambulance_station).
  • Field: Choose a QGIS column to map to an OSM key (e.g., name = station_name).
• Apply: Click Apply Configuration to build your processing queue and jump to the Browser tab.

2. Execution (Browser Tab)

• Navigate: Use Next and Prev to jump between features. QGIS will auto-zoom and highlight the current target.
• Sync:
  • Manual: Click the ⚡ Sync to JOSM button.
  • Automatic: Use the QGIS Vertex Tool to move the point. The move will trigger an automatic update in JOSM.
• JOSM Interaction: The plugin will tell JOSM to download the area, select the building identified by Overpass, and prepare the tags for upload.

⚙️ Technical Requirements

• QGIS 3.x
• JOSM (with Remote Control enabled)
• Python Libraries: requests

🗺 Roadmap

• Add a context menu to auto-fill Field names in the tag table.
• Add support for Polygon-to-Polygon conflation.
• Visual "Checklist" to mark features as "Done" in the source database.

📄 License

Distributed under the GPLv2+ License.