{"name": "DDM HydroLogic", "package_name": "DDM_HydroLogic", "description": "Delineate and create model-ready catchments interactively. Trace D8 flow paths, selects the streams that matter, drop an outlet line, and export straight to GeoPackage, RORB, WBNM, XP-RAFTS or TUFLOW.", "about": "Setting up a hydrologic model usually means a few hours of GIS prep work\nbefore the modelling even starts. DDM HydroLogic condenses some of the initial steps\ninto one interactive session: it traces D8 flow paths from a DEM, ranks them by\nStrahler order, and lets you pick the relevant drainage.\nDraw an outlet line, set a minimum subcatchment size, and DDM HydroLogic cuts\nthe catchment into dissolved subcatchment polygons \u2014 then you have choices of exporting as:\n\nGeoPackage of flow paths and subcatchments,\nRORB .catg GE-ready catchment file,\nWBNM .wbn runfile,\nXP-RAFTS .xpx exchange file,\nor some of the most popular TUFLOW xxx_R.shp.\n\nIt is important to note that all hydrological/hydraulic choices and parameters, such as\nrainfall, losses, Manning's coefficients, subcatchment types, slope, etc..\nhave been deliberately left blank or default values.\n\nRequirements and notes: QGIS 3.22 or newer, with no extra Python packages to\ninstall (it relies on the numpy and GDAL libraries already bundled with\nQGIS). Work for DEMs in projected CRS for meaningful areas and lengths.\n\nLicensed under the GNU General Public License version 2 or later", "homepage": "https://github.com/0verlord84/ddm-hydrologic", "repository": "https://github.com/0verlord84/ddm-hydrologic", "tracker": "https://github.com/0verlord84/ddm-hydrologic/issues", "author": "Davide Di Mauro", "tags": ["hydrology", "dem", "tuflow", "catchment", "watershed", "wbnm", "rorb", "strahler", "xp-rafts", "subcatchment", "d8"], "downloads": 565, "latest_version": "2.0", "versions": [{"version": "2.0", "experimental": false, "qgis_min": "3.22.0", "qgis_max": "4.99.0", "downloads": 318, "uploaded_by": "Overlord84", "upload_datetime": "2026-06-28T05:56:58.154891"}, {"version": "1.0", "experimental": false, "qgis_min": "4.0.0", "qgis_max": "4.99.0", "downloads": 247, "uploaded_by": "Overlord84", "upload_datetime": "2026-06-14T02:54:21.815961"}]}