Functions in the $.geo namespace can give you info about shapes. The large red box is the bbox of all red shapes.
distance
pt, pt
pt, line
pt, poly
line, pt
line, line
line, poly
poly, pt
poly, line
poly, poly
poly, poly
contains
pt, pt
pt, line
pt, poly
line, pt
line, line
line, poly
poly, pt
poly, line
poly, poly
contains
poly, pt
poly, line
poly, poly
poly, poly
centroid
pt
line
poly
poly
poly