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Contour Line Tracing Algorithm for Digital Topographic Maps
This paper suggests an algorithm that can beused for tracing contour lines automatically from contour maps extracted from thetopographical sheets and creating a database. In our approach, we haveproposed a modified Moore’s Neighbor contour tracing algorithm to trace allcontours in the given topographic maps....
Automatic Interpretation of Scanned Topographic Maps: A ...
This paper suggests an algorithm that can be used for tracing contour lines automatically from contour maps extracted from the topographical sheets and creating a database. In our approach, we have proposed a modified Moore’s Neighbor contour tracing algorithm to trace all contours in the given topographic maps....
Digital Elevation Models (DEMs) from Topographic Maps or ...
The process of Digital Elevation Model (DEM) creation begins with the scanned and geo-referenced topographic map (or nautical chart in the case of bathymetry). Contour Lines, spot elevations, coastlines and bodies of water from the raster image are extracted, converted to digital vectors and given elevation values....
Given a terrain, how to draw the stream flow path ...
In contour-based digital elevation models, lines of slope can be determined automatically by solving complex topographic structures using the (complex) model described in the following paper: Moretti, G., and S. Orlandini (2008), Automatic delineation of drainage basins from contour elevation data using skeleton construction techniques, Water ......
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