विधियों की तुलना करें

	मानचित्र बीजगणित	न्यूनतम-लागत पथ / लागत-दूरी विश्लेषण
क्षेत्र	स्थानिक विश्लेषण	स्थानिक विश्लेषण
परिवार	Process / pipeline	Process / pipeline
उद्भव वर्ष	1990	1994
प्रवर्तक	Dana Tomlin	Edsger Dijkstra (shortest path); GIS cost-surface adaptation
प्रकार	Raster spatial analysis framework	Raster cost-surface routing
मौलिक स्रोत	Tomlin, C. D. (1990). Geographic Information Systems and Cartographic Modeling. Prentice Hall. ISBN: 978-0-13-350927-4	Dijkstra, E. W. (1959). A note on two problems in connexion with graphs. Numerische Mathematik, 1(1), 269–271.
उपनाम	Cartographic Modeling, Raster Algebra, Grid Algebra, Harita Cebiri	cost-distance analysis, accumulated cost surface, least-cost corridor, en düşük maliyetli yol
संबंधित	3	3
सारांश	Map Algebra is a rule-based language and computational framework for deriving new raster layers from existing ones by applying arithmetic, logical, or statistical operations cell by cell or across neighborhoods. Formalized by Dana Tomlin in 1990, it is the foundational algebraic system underlying raster GIS analysis and is widely used in environmental science, urban planning, hydrology, and land-use modeling whenever spatially explicit calculations on gridded data are required.	Least-cost path analysis finds the route between two locations that minimizes accumulated travel cost across a landscape, rather than minimizing straight-line distance. By encoding terrain, slope, land cover, and other frictions into a cost surface and accumulating cost outward from a source, it identifies optimal corridors for roads, pipelines, trails, power lines, and wildlife movement — a core raster-GIS technique built on Dijkstra's shortest-path logic.