Class TerrainAnalyzer

java.lang.Object

org.episteme.social.geography.TerrainAnalyzer

public final class TerrainAnalyzer
extends Object

Utility class for terrain analysis using Digital Elevation Models (DEM).

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Method Summary

Modifier and Type	Method	Description
static double[][]	calculateAspect(double[][] dem, Quantity<Length> cellSize)	Calculates aspect (slope direction) grid.
static int[][]	calculateFlowDirection(double[][] dem)	Simplified flow direction (D8 algorithm).
static double[][]	calculateSlope(double[][] dem, Quantity<Length> cellSize)	Calculates slope grid from elevation grid using Horn's method.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

calculateSlope

public static double[][] calculateSlope(double[][] dem,
 Quantity<Length> cellSize)

Calculates slope grid from elevation grid using Horn's method.

Parameters:

dem - Digital Elevation Model (2D elevation array)

cellSize - width/height of a grid cell

Returns:

grid of slope values in degrees

calculateAspect

public static double[][] calculateAspect(double[][] dem,
 Quantity<Length> cellSize)

Calculates aspect (slope direction) grid.

Parameters:

dem - elevation grid

cellSize - cell dimension

Returns:

aspect in degrees (0-360) from North

calculateFlowDirection

public static int[][] calculateFlowDirection(double[][] dem)

Simplified flow direction (D8 algorithm).