R Under development (unstable) (2024-09-21 r87186 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> library(ChestVolume)
> 
> data(sample_data)
> 
> # Step 1: Process the marker data and convert from mm to cm
> processed_data <- process_marker_data(sample_data, convert_to_cm = TRUE)
> 
> # Step 2: Adjust the marker positions by moving them 1 cm toward the chest center
> adjusted_data <- adj_position(processed_data, distance = 1)
> 
> # Step 3: Define the chest segments (example with one segment)
> segments <- list(
+   upper_left = c("M01", "M02", "M04", "M05","M07", "M08","M10", "M11")
+ )
> 
> # Step 4: Calculate the chest segment volumes
> volumes <- calculate_volumes(adjusted_data, segments)
> 
> # Step 5: Visualize the chest expansion in 3D
> plot_chest_3d(adjusted_data, segments, selected_segment = 'upper_left')
> 
> # Step 6: Plot the chest volume changes over time
> plot_2d_volume(volumes, 'Segment')
> 
> proc.time()
   user  system elapsed 
  10.28    3.10   13.40