Commit d03a02bd authored by Bauck, Kirsten (Contractor) Hailey's avatar Bauck, Kirsten (Contractor) Hailey Committed by Laura, Jason R.
Browse files

small update for math domain error

parent 5de8577f

CHANGELOG.md

+1 −0
Changes for CHANGELOG.md: 1 added line, 0 removed lines.
Original line number Original line Diff line number Diff line
@@ -45,6 +45,7 @@ release. 
- Finding points in polar areas that avoids dividing by zero errors

- Finding points in polar areas that avoids dividing by zero errors

- Small errors in `overlap.py` to get overlap function working.

- Small errors in `overlap.py` to get overlap function working.

- Raise an exception if the shear is too high when trying to find the baseline affine

- Raise an exception if the shear is too high when trying to find the baseline affine

- Catch divide by 0 errors when getting the number of points to place in `centroids.py`





## [1.1.0]

## [1.1.0]

### Added

### Added

autocnet/spatial/centroids.py

+7 −3
Changes for autocnet/spatial/centroids.py: 7 added lines, 3 removed lines.
Original line number Original line Diff line number Diff line
@@ -45,7 +45,12 @@ def get_number_of_points(target_distance_km, latitude, radius): 
    target_distance_rad = target_distance_km / radius

    target_distance_rad = target_distance_km / radius





    # Calculate longitudal distance between two points

    # Calculate longitudal distance between two points

    try:

        longitudinal_distance = 2 * math.asin(math.sqrt(math.sin(target_distance_rad/2)**2 / (math.cos(math.radians(latitude))**2)))

        longitudinal_distance = 2 * math.asin(math.sqrt(math.sin(target_distance_rad/2)**2 / (math.cos(math.radians(latitude))**2)))

    # If given latitude is too close to 90 or 270, taking the cosine of it will give 0, so will then have a divide by 0 error.

    except:

        log.info(f"Math domain error at {latitude}, skipping")

        return None





    # Calculate the circumference of the planetary body at the given latitude

    # Calculate the circumference of the planetary body at the given latitude

    body_circumference = 2 * math.pi * radius * math.cos(math.radians(latitude))

    body_circumference = 2 * math.pi * radius * math.cos(math.radians(latitude))
@@ -126,15 +131,14 @@ def find_points_in_centroids(radius, 
    if polygon:

    if polygon:

        _, min_lat, _, max_lat = polygon.bounds

        _, min_lat, _, max_lat = polygon.bounds

    latitude_intervals = np.arange(max_lat, min_lat, latitude_decriment)

    latitude_intervals = np.arange(max_lat, min_lat, latitude_decriment)

    # Remove intervals that cause divide by 0 errors

    latitude_intervals = latitude_intervals[latitude_intervals != 270.0]

    latitude_intervals = latitude_intervals[latitude_intervals != 90.0]

    points=[]

    points=[]





    # Itterate through each latitude

    # Itterate through each latitude

    for lat in latitude_intervals:

    for lat in latitude_intervals:

        # Calculate the number of points needed to space points along a latitude line every __km

        # Calculate the number of points needed to space points along a latitude line every __km

        num_points = get_number_of_points(target_distance_in_km, lat, radius)

        num_points = get_number_of_points(target_distance_in_km, lat, radius)

        if not num_points:

            continue

        p1 = (longitude_min, lat)

        p1 = (longitude_min, lat)

        p2 = (longitude_max, lat)

        p2 = (longitude_max, lat)

        # Create a list of points for latitude lines

        # Create a list of points for latitude lines