Combining a structures sub catagories

I have a structure, 'Lines', that is made of 3 parts; 'Start', 'End', and 'Points'. 'Start' and 'End' are 2D coordinates for a series of lines. I want to quickly find the closest start or end point to a given 2D coordinate. To do this is I intend to create an Xx2 array of the start points (where X is the number of lines in the structure), subtract test_point(ones(X,1),:) and do sqrt(sum(result)). The problem that I have is combining the 'Start' into a Xx2 array. I can use [lines.start] to create a 1xX array but I need it in an Xx2 for this method.

Thanks in advance, Ryan Giles.

Answer 1

[Ryan]

I found the solution; vertcat(lines.start)