Task: Write Trails Drawing Feature functions: path_optimality

[cgmaiorano]

Description

New functions need to be written for calculating various features for trails. The path_optimality function will calculate the ratio between the optimal path distance and actual path distance. This function relies on predetermined circle locations of the presented stimulus.

Tasks

• Calculate total segment distance traveled during "ink time" - returned from total_distance function
• Calculate the optimal segment distance (euclidean distance between the start and end circles)
• Path optimality = optimal distance / total distance

Freeform Notes

This function is reliant on "ink time".