  Based on the bilinear operator and symbol calculation, some lump solutions
are presented, rationally localized in all directions in the space, to a
reduced (3+1)-dimensional KP equation. The lump solutions all contain six
parameters, four of which must cater to the non-zero conditions so as to insure
the analyticity and rational localization, while the others are free. Then the
interaction between lump soliton and one stripe soliton is described and the
result shows that the lump soliton will be drowned or swallowed by the stripe
soliton. Furthermore, we extend this method to a new combination of positive
quadratic function and hyperbolic functions. Especially, it is interesting that
a rogue wave is found to be aroused by the interaction between lump soliton and
a pair of resonance stripe solitons. By choosing the values of the parameters,
the dynamic properties of lump solution, interaction between lump soliton and
one stripe soliton, rogue wave, generated by the interaction between lump
soliton and a pair of resonance solitons, are shown graphically.
