1. A method for searching a line pattern representation amongst a collection of line pattern representations, the method comprising: an act of detecting an input gesture input by a user into a computing system; an act of automatically matching the input gesture against each of a plurality of line pattern representations, reach representing a line pattern having a changing value in a first dimension as a function of a value in a second dimension; and an act of visualizing at least one line pattern representation of the matched set on a display of the computing system.