Dealing with extreme conditions at the poles

        # If sample/line are None, point is not in image

        if try_sample == None or try_line == None:

            sample, line = None, None

            log.info(f'point ({lon}, {lat}) does not project to reference image {node["image_path"]}')

            continue

    # Tried all the images, so return a shapely point un-modified, the last sample/line.

    log.info('Unable to find an interesting point, falling back to the a priori pointing')

    log.debug(f'Current reference index: {reference_index}.')

    # This only occurs when all the nodes returned a null sample or line

    if not sample or not line:

        log.info('No point was ever in any of the images, return None')

        return None, None

    # No interesting point was found but can use the last point in the itteration

    return reference_index, shapely.geometry.Point(sample, line)

def place_points_in_centroids(candidate_points,

    Parameters

    ----------

    valid : list

    valid : tupple

        point coordinates in the form (x1,y1)

    interesting_func : callable

            nodes.append(nn)

    # Extract an interesting point

    # Make sure that there were nodes found

    if not nodes:

        log.info(f'No nodes were found for the point {point.x}, {point.y}')

        return

    log.info(f'Searching for an interesting point at {point.x}, {point.y} (lat,lon) in {len(nodes)} images.')

    reference_index, interesting_sampline = interesting_func(nodes, point.x, point.y, **interesting_func_kwargs)

    # If no images worked at all, then this is just a bad area to find a good image

    if not reference_index:

        log.info('None of the possible images worked to find an interesting point, skipping')

        return

    # Otherwise, something was found and can continue on

    log.info(f'Found an interesting feature in {nodes[reference_index]["image_path"]} at {interesting_sampline.x}, {interesting_sampline.y}.')

    # Get the updated X,Y,Z location of the point and reproject to get the updates lon, lat.