GIS developer  ·  creator of Maptor (MakanNegar)  ·  PhD student in GIS

maptor.ir  ·  NuGet  ·  Google Scholar  ·  ORCID  ·  Stack Overflow  ·  LinkedIn

I build spatial systems in .NET — geometry and projection engines, spatial format readers and writers, database adapters, and the map controls that sit on top of them. Most of that work goes into Maptor. Alongside it I work on backend and data engineering: ASP.NET Core APIs, ETL pipelines, and reporting on SQL Server and PostgreSQL.

_{The Maptor WPF gallery — a Delaunay triangulation and its dual Voronoi diagram over Europe: 60 points, 106 triangles, 60 cells, in 9 ms.}

Maptor is an open-source .NET library suite for spatial data modelling, processing and visualization. Core packages target .NET Standard 2.1, so they run cross-platform on .NET Core 3.0+ / .NET 5+; the WPF map viewer targets .NET 8 (Windows).

• Spatial reference systems — predefined ellipsoids, datum transformations, UTM / Mercator / Web Mercator / Lambert Conformal Conic, and geodetic distance on both the ellipsoid and the sphere
• Geometry and algorithms — the OGC geometry model, Delaunay triangulation, Voronoi diagrams, convex hull, line simplification, KdTree and RTree spatial indexes, graph algorithms, and machine learning for spatial data
• Formats — Shapefile, GeoJSON, TopoJSON, Esri JSON, KML/KMZ, GPX, WKT/WKB, DXF, GeoParquet, PMTiles, Mapbox vector tiles, MBTiles, GeoPackage, GeoTIFF metadata, world files, and SVG / EPS / PDF export
• OGC services — WMS, WFS, GML and SLD
• Databases — SQL Server Spatial, PostgreSQL/PostGIS, SQLite, Esri Personal Geodatabase, and EF Core spatial mapping without NetTopologySuite
• WPF visualization — an interactive MapViewer control with layers, symbology, tile basemaps, markers, measurement and identify tools, and localization across 15 cultures including right-to-left

Get started  ·  Packages  ·  Samples gallery  ·  Source on GitHub

As of September 2026:

• MGRS and map grids — military grid reference system support and configurable grid lines in the MapViewer
• Maptor v3 — the restructure into Core / Infrastructure / Presentation tiers, and the package rename off the older Sta / Ket / Jab identifiers
• maptor.ir — the documentation site, samples gallery and per-package guides, in English and Persian
• PhD research in GIS — see Google Scholar and ORCID

.NET and backend

Data and storage

Data engineering and BI

Build and ship

Applied with clean architecture, domain-driven design, established design patterns, microservices, careful algorithm design, and an xUnit test suite.

• Machine learning and AI
• Real-time data streaming — Kafka, RabbitMQ
• Spatial visualization
• Concurrency — async, parallel and multithreaded programming

• Introduction to Algorithms (CLRS) — the classic algorithms reference
• Computational Geometry: Algorithms and Applications (Springer, 2008) — de Berg, Cheong, van Kreveld & Overmars
• Data Mining: Concepts and Techniques (2011) — Han, Kamber & Pei

• C# 10 in a Nutshell — the definitive reference (O'Reilly, 2022)
• C# in Depth — a deep dive into modern C# by Jon Skeet
• Concurrency in C# Cookbook — asynchronous, parallel and multithreaded programming, by Stephen Cleary

• Software Engineering: A Practitioner's Approach — Roger Pressman
• Dive Into Design Patterns (2019) — practical pattern implementations
• Unit Testing: Principles, Practices, and Patterns (Manning, 2019) — Vladimir Khorikov

• GIS: A Computing Perspective — Worboys & Duckham
• Geographic Information Analysis (2003) — O'Sullivan & Unwin
• Digital Terrain Modeling (2005) — Li, Zhu & Gold