com1DFA.DFAtools.getAreaMesh¶
- getAreaMesh(dem, num)[source]¶
Get area of grid cells.
- Parameters
dem dict updated with –
- Nx: 2D numpy array
x component of the normal vector field on grid points
- Ny: 2D numpy array
y component of the normal vector field on grid points
- Nz: 2D numpy array
z component of the normal vector field on grid points
- headerdict
dem header (cellsize)
num (int) – chose between 4, 6 or 8 (using then 4, 6 or 8 triangles) or 1 to use the simple cross product method (with the diagonals)
- Returns
- areaRaster: 2D numpy array
real area of grid cells
- Return type
dem dict updated with