  Rogue wave patterns in the nonlinear Schr\"{o}dinger equation are
analytically studied. It is shown that when an internal parameter in the rogue
waves (which controls the shape of initial weak perturbations to the uniform
background) is large, these waves would exhibit clear geometric structures,
which are formed by Peregrine waves in shapes such as triangle, pentagon,
heptagon and nonagon, with a possible lower-order rogue wave at its center.
These rogue patterns are analytically determined by the root structures of the
Yablonskii-Vorob'ev polynomial hierarchy, and their orientations are controlled
by the phase of the large parameter. It is also shown that when multiple
internal parameters in the rogue waves are large but satisfy certain
constraints, similar rogue patterns would still hold. Comparison between true
rogue patterns and our analytical predictions shows excellent agreement.
