# reorderSensorData

Reorder sensor data from kspaceFirstOrder2D based on angle.

## Syntax

    [reordered_sensor_data, indices_new] = reorderSensorData(kgrid, sensor, sensor_data)

## Description

`reorderSensorData` reorders the time series from `kspaceFirstOrder2D` based on the angle that each sensor point makes with the centre of the grid. The sensor mask must be a binary mask, and the angles are defined from the upper left quadrant or negative y-axis in the same way as within `makeCircle` and `makeCartCircle`.

## Inputs

`kgrid` | k-Wave grid object returned by `kWaveGrid`
`sensor` | k-Wave sensor structure where `sensor.mask` is defined as a binary grid
`sensor_data` | sensor data returned by `kspaceFirstOrder2D` ordered using MATLAB's standard column-wise linear matrix indexing

## Outputs

`reordered_sensor_data` | time varying sensor data reordered by the angle that each sensor point makes with the centre of the grid
`indices_new` | the indices of the reordered time series, where `reordered_sensor_data = sensor_data(indices_new, :)`

## See Also

`kspaceFirstOrder2D`, `unmaskSensorData`