human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "drawing trees with perfect angular resolution and polynomial area"):
  Abstract: We study methods for drawing trees with perfect angular resolution, i.e., with angles at each node $$v$$ equal to $$2\pi /d(v)$$. We show:1.Any unordered tree has a crossing-free straight-line drawing with perfect angular resolution and polynomial area.2.There are ordered trees that require exponential area for any crossing-free straight-line drawing having perfect angular resolution.3.Any ordered tree has a crossing-free Lombardi-style drawing (where each edge is represented by a circular arc) with perfect angular resolution and polynomial area. Thus, our results explore what is achievable with straight-line drawings and what more is achievable with Lombardi-style drawings, with respect to drawings of trees with perfect angular resolution.

Includes members:
  Member "planar and poly arc lombardi drawings":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "bipartite and series parallel graphs without planar lombardi drawings")
  Member "planar lombardi drawings for subcubic graphs":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "on smooth orthogonal and octilinear drawings relations complexity and kandinsky drawings")
  Member "the graphs of planar soap bubbles":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "the galois complexity of graph drawing why numerical solutions are ubiquitous for force directed spectral and circle packing drawings")
  Member "pinning balloons with perfect angles and optimal area":
    also connected through other hyperedges:
      (none)
  Member "lombardi drawings of graphs":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "bipartite and series parallel graphs without planar lombardi drawings")
  Member "trees with convex faces and optimal angles":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "realization and connectivity of the graphs of origami flat foldings")
  Member "confluent drawings visualizing non planar diagrams in a planar way":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "on strict outer confluent graphs")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.CG(Computational Geometry)