Examples of DEMAlgorithm

org.codemap.internal.DEMAlgorithm

Creates the digital elevation model of a map. A digital elevation model (DEM) is a raster of z-ordinates for each pixel.

For each location on the map, a hill is added to the digital elevation model. The elevation of a hill at position (x0,y0) with height (z) is defined as follows, f(x,y) = z * exp ^ (-0.5 * (dist * factor) ^ 2) where dist = sqrt((x - x0) ^ 2 + (y - y0) ^ 2) and factor = k / z. The constant (k) is chosen such that a hill of height 100.0 has a diameter of 41% of the map.

The algorithm has been optimized to run fast.

Not thread-safe. @author Adrian Kuhn

                return (double) points.get(location);


            }
        });  
        
        DEMAlgorithm algorithm = new DEMAlgorithm();
        algorithm.setMap(mapInstance);
        float[][] DEM = algorithm.call();
        
        ShadeAlgorithm hsa = new ShadeAlgorithm();
        hsa.setMap(mapInstance);
        double[][] shading = hsa.call();

        if (hills == null) hills = new MapScheme<Boolean>(true);
        return computeValue(monitor, map, hills);
    }


    private DigitalElevationModel computeValue(ProgressMonitor monitor, MapInstance map, MapScheme<Boolean> hills) {
        DEMAlgorithm algorithm = new DEMAlgorithm();
        algorithm.setMap(processMap(map));
        return new DigitalElevationModel(algorithm.call());
    }

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Examples of DEMAlgorithm

Examples of org.codemap.internal.DEMAlgorithm

Examples of org.codemap.internal.DEMAlgorithm