airbornegeo.update_intersections_with_eq_sources

update_intersections_with_eq_sources(data, *, fitted_equivalent_sources, data_column, line_column, distance_column, progressbar=True)

At each theoretical intersection point, replace the interpolated field value with a value predicted by the fitted equivalent sources for the line, at the x,y coordinate of the intersection point, and the higher of the two lines’ elevations. This allows the cross-over mistie value to be comparing the field values at the same point in 3D space, not 2D space, due to different flight heights.

Parameters:

• data (DataFrame) – dataframe containing the data to update

• fitted_equivalent_sources (dict) – a dictionary with keys of line names and values of fitted equivalent sources for each line, which can be created using the function eq_sources_1d

• line_column (str) – Column containing the line / flight / segment names.

• distance_column (str) – Column containing the distance along line.

• data_column (str) – name of the column containing the field values to update at the intersection points, this should be the same as the column that use used as ‘data_column’ when fitting the equivalent sources for each line with eq_sources_1d.

• progressbar (bool) – Show a progress bar over equivalent source segments, by default True.

Returns:

the updated field values at the intersection points, which can be added to the dataframe as a new column or used to replace the existing values in the dataframe.

Return type:

Series