`RectSector`#

class acoular.grids.RectSector

Bases: SingleSector

Class for defining a rectangular sector.

Defines a rectangular sector either for 2D grids (rectangle in the XY-plane) or for 3D grids (rectangular cylindrical sector parallel to the z-axis). The sector is bounded by the specified x_min, x_max, y_min, and y_max positions, defining the lower and upper bounds of the rectangle along the x and y axes.

Examples

Load example data and set diffrent Sectors for intergration in the sector integration example.

x_min: The minimum x position of the rectangle. Default is -1.0.

x_max: The maximum x position of the rectangle. Default is 1.0.

y_min: The minimum y position of the rectangle. Default is -1.0.

y_max: The maximum y position of the rectangle. Default is 1.0.

contains(pos)

Check if the coordinates in a given array lie within the rectangular sector.

If no coordinate is inside, the nearest one to the rectangle center is returned if default_nearest is True.

Parameters:

posarray of floats: A (3, N) array containing the positions of N grid points.

Returns:

numpy.ndarray of bools: An array of shape (N,) indicating which of the given positions lie within the given sector.

Examples

>>> import acoular as ac
>>> grid = ac.RectGrid(increment=2)
>>> sec = ac.RectSector(x_min=0, y_min=0)
>>> sec.contains(grid.pos)
array([False, False, False,  True])

include_border: If True, grid points lying on the sector border are included in the sector. Default is True.

abs_tol: The absolute tolerance to apply when determining if a grid point lies on the sector border. Default is 1e-12.

default_nearest: If True, the contains method (as in RectSector.contains(), RectSector3D.contains(), CircSector.contains(), and PolySector.contains()) returns the nearest grid point if no grid points are inside the sector. Default is True.

RectSector#

`RectSector`#