Surveying and mapping with photogrammetry in Drone Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the drone's camera for photogrammetry.

Drone Programming

drone.camera.[1]()

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

Aopen

Bactivate

Cenable

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'activate' or 'enable' which may not be valid methods.

Using 'open' which is usually for files, not cameras.

The start() method activates the camera to begin capturing images for photogrammetry.

2fill in blank

medium

Complete the code to set the drone's flight altitude for mapping.

Drone Programming

drone.flight.set_altitude([1])

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

A100

B50

Cheight

Daltitude

Attempts:

3 left

💡 Hint

Common Mistakes

Using variable names instead of numeric values.

Choosing too low or invalid altitude values.

The altitude must be a number representing meters. Here, 100 sets the flight altitude to 100 meters.

3fill in blank

hard

Fix the error in the code to capture images at set intervals.

Drone Programming

drone.camera.capture(interval=[1])

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

A'5s'

B5

Cfive

D5 seconds

Attempts:

3 left

💡 Hint

Common Mistakes

Using strings like '5s' or '5 seconds' which cause errors.

Using words like 'five' which are invalid.

The interval should be a number representing seconds. Using 5 correctly sets the interval to 5 seconds.

4fill in blank

hard

Fill both blanks to create a dictionary of image filenames and their GPS coordinates.

Drone Programming

image_data = [1]((filename, drone.camera.[2](filename)) for filename in image_list)

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

Adict

Bget_gps

Ccapture

Dlist

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'list' instead of 'dict' for the dictionary creation.

Using 'capture' instead of 'get_gps' for GPS data.

We use dict to create a dictionary and get_gps() to get GPS coordinates for each image filename.

5fill in blank

hard

Fill all three blanks to filter images taken above a certain altitude and create a mapping dictionary.

Drone Programming

mapping = [1]: drone.camera.get_gps([2]) for [2] in images if drone.flight.altitude [3] 50}}

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

Aimg

Bimage

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names in the dictionary and loop.

Using '<' instead of '>' for altitude comparison.

We use image as the variable name for images, and filter those taken when altitude is greater than 50 meters using >.