Skip to main content
SpringerLink
Log in

Technical summaries of GEMS

  • Published:
Journal of Computer Science and Technology Aims and scope Submit manuscript

Abstract

GEMS is a solid modelling system running on CAD workstation or 32 bits microcomputer with graphics terminal. Complex solid objects are built from transformation and set operations upon box, cylinder, cone, sphere, torus, sweeping object and other primitives. CEMS has explicit features, e. g. hierarchical modular structure, interactive user interface, intuitional input, screen menu driven by data table, defining and instancing object in network construction, storage bases on CSG (Constructive Solid Geometry) and BReps (Boundary Representations), regularized set operations, transformation pipeline consistent with PHIGS graphics standard, various transformations, cutting object with two sections in arbitrary angle, patrolling to view the inside of an object, mapping patterns onto surfaces of an object etc.. Not only can it be used for the fields of spatial planning, architectural plan, CAD/CAM for machining, structure analysis, but it is also fundamental for developing the practical system of simulation, computer vision, robotics and so on.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. J.W. Boyce and J. E. Gilchrist, GMsolid: Interactive modeling for design and analysis of solid,IEEE CG andA, Mar. 1982.

  2. A. A. G. Requicha, Representations for rigid solids: Theory, methods and systems,ACM Comput. Surv. 12: 4 (1980), 437–464.

    Article  Google Scholar 

  3. R. B. Tilove, Set membership classification: A unified approach to geometric intersection problems,IEEE Trans. Comput.,C-29: 10 (1980), 874–883.

    Article  MathSciNet  Google Scholar 

  4. A. A. G. Requicha and H. B. Voelcker, Boolean Operations in Solid Modelling: Boundary Evaluation and Merging Algorithms, Proc. of the IEEE,73: 1 (1985).

    Article  Google Scholar 

  5. Michael E. Mortenson, Geometric Modeling, John Wiley and Son. 1985.

  6. Mark Segal and G. H. Sequin, Partitioning Polyhedral Objects into Nonintersecting Parts,IEEE CG and A, Jan., 1988.

Download references

Author information

Authors and Affiliations

  1. Tsinghua University, Beijing

    Sun Jiaguang, Gu Kaining, Guo Yulin & Tang Zesheng

Authors
  1. Sun Jiaguang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Gu Kaining
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Guo Yulin
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Tang Zesheng
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sun, J., Gu, K., Guo, Y. et al. Technical summaries of GEMS. J. of Comput. Sci. & Technol. 4, 374–382 (1989). https://doi.org/10.1007/BF02943119

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02943119

Keywords

Search

Navigation