GPS data processing in Drone Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to extract the latitude from the GPS data dictionary.

Drone Programming

latitude = gps_data[1]

Drag options to blanks, or click blank then click option'

A['latitude']

B[latitude]

C.latitude

Dlatitude

Attempts:

3 left

💡 Hint

Common Mistakes

Using dot notation instead of square brackets for dictionary access.

Forgetting to put the key name in quotes.

The GPS data is stored as a dictionary. To get the latitude value, use the key 'latitude' inside square brackets.

2fill in blank

medium

Complete the code to calculate the distance between two GPS points using the Haversine formula.

Drone Programming

distance = 2 * radius * math[1](math.sqrt(a))

Drag options to blanks, or click blank then click option'

A.tan

B.sin

C.cos

D.asin

Attempts:

3 left

💡 Hint

Common Mistakes

Using sine instead of arcsine.

Using cosine or tangent which are incorrect here.

The Haversine formula uses the arcsine function, which is math.asin in Python, to calculate the central angle.

3fill in blank

hard

Fix the error in the code to convert GPS coordinates from degrees to radians.

Drone Programming

lat_rad = math[1](lat_deg)

Drag options to blanks, or click blank then click option'

A.degrees

B.radians

C.to_radians

D.convert

Attempts:

3 left

💡 Hint

Common Mistakes

Using math.degrees() which converts radians to degrees.

Using non-existent functions like to_radians or convert.

To convert degrees to radians, use math.radians(). The other options are invalid functions.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps each GPS point's ID to its altitude if altitude is above 100 meters.

Drone Programming

altitudes = {point[1]: data[2] for point, data in gps_points.items() if data['altitude'] > 100}

Drag options to blanks, or click blank then click option'

A['id']

B['altitude']

C.id

D.altitude

Attempts:

3 left

💡 Hint

Common Mistakes

Using dot notation which does not work for dictionaries.

Mixing up keys and values in the comprehension.

Use ['id'] to get the point's ID and ['altitude'] to get the altitude from the data dictionary.

5fill in blank

hard

Fill both blanks to filter GPS points with latitude greater than 40, and create a dictionary with uppercase IDs as keys and their longitude as values.

Drone Programming

filtered = {point[1]: data[2] for point, data in gps_data.items() if data['latitude'] > 40}

Drag options to blanks, or click blank then click option'

A{

B.upper()

C['longitude']

D['id']

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting the opening curly brace for the dictionary.

Not converting the point ID to uppercase.

Using wrong key names or dot notation.

Start the dictionary with {, use point.upper() to uppercase the ID, and access longitude with data['longitude'].