x domain calculated for each tract as maximum length of subject nodes vector for given tract
x domain calculated for each tract as maximum length of subject nodes vector for given tract

richford/AFQ-viz,richford/AFQ-Browser,yeatmanlab/AFQ-Browser,arokem/AFQ-Browser,arokem/AFQ-Browser,arokem/AFQ-Browser,richford/AFQ-Browser,richford/AFQ-Browser,yeatmanlab/AFQ-viz,yeatmanlab/AFQ-viz,yeatmanlab/AFQ-Browser,yeatmanlab/AFQ-Browser,richford/AFQ-viz