{"name": "MDE AP - Acur\u00e1cia Posicional", "package_name": "pos_accuracy", "description": "Evaluates three-dimensional positional accuracy of Digital Elevation Models (DEM) using homologous linear features (PEC-PCD and CE90/LE90).", "about": "MDE AP evaluates the three-dimensional positional accuracy of a test Digital Elevation Model (DEM) against a reference DEM.\nThe workflow extracts ridge and drainage lines with GRASS r.watershed, matches homologous pairs, computes mean discrepancy (DM) from double buffers (planimetry) and altimetric profiles, and classifies the result using the Brazilian PEC-PCD standard (classes A\u2013D) or CE90/LE90 thresholds.\nRequirements: QGIS 3.30 or later; GRASS GIS Processing provider enabled (morphology). No extra Python packages are required.\nThe interface is available in Portuguese, English and Spanish. Results are stored in a project GeoPackage (.pa.gpkg).\nDeveloped at the Postgraduate Program in Civil Engineering (PPGEC), Universidade Federal de Vi\u00e7osa (UFV), Brazil.", "homepage": "https://github.com/adrianocsalvador/pos_accuracy", "repository": "https://github.com/adrianocsalvador/pos_accuracy", "tracker": "https://github.com/adrianocsalvador/pos_accuracy/issues", "author": "Adriano Caliman Salvador", "tags": ["dem", "dsm", "elevation", "positional accuracy", "pec-pcd", "ce90", "le90", "grass", "cartography", "quality control"], "downloads": 10, "latest_version": "1.3.10", "versions": [{"version": "1.3.10", "experimental": false, "qgis_min": "3.30.0", "qgis_max": "3.99.0", "downloads": 10, "uploaded_by": "adrianocsalvador", "upload_datetime": "2026-08-21T09:27:22.915229"}]}