---
_id: '39505'
abstract:
- lang: eng
  text: '3D-graphics are becoming popular in a steadily increasing number of areas
    such as entertainment, scientific visualization, simulation, and virtual reality.
    Despite this rapid growth the generation of animated 3D scenes is by no means
    trivial. Since animated 3D objects evolve over time the authors denote these objects
    as 4D. The article presents a novel approach to the rapid prototyping of 4D models.
    They introduce the AAL (Animated Agent Layer) system. AAL is an interpreter-based
    approach covering a textual (AAL-PR) as well as a visual command language (AAL-VL)
    for the specification of the dynamics in 4D scenes. AAL provides support for different
    levels of abstraction: primitives, structured objects, animated objects, and animated
    (autonomous) agents.'
author:
- first_name: M.
  full_name: Dücker, M.
  last_name: Dücker
- first_name: Christian
  full_name: Geiger, Christian
  last_name: Geiger
- first_name: R.
  full_name: Hunstock, R.
  last_name: Hunstock
- first_name: Georg
  full_name: Lehrenfeld, Georg
  last_name: Lehrenfeld
- first_name: Wolfgang
  full_name: Müller, Wolfgang
  id: '16243'
  last_name: Müller
citation:
  ama: 'Dücker M, Geiger C, Hunstock R, Lehrenfeld G, Müller W. Visual-Textual Prototyping
    of 4D Scenes. In: <i>Proceedings of the 1997 IEEE Symposium on Visual Languages</i>.
    ; 1997. doi:<a href="https://doi.org/10.1109/VL.1997.626601">10.1109/VL.1997.626601</a>'
  apa: Dücker, M., Geiger, C., Hunstock, R., Lehrenfeld, G., &#38; Müller, W. (1997).
    Visual-Textual Prototyping of 4D Scenes. <i>Proceedings of the 1997 IEEE Symposium
    on Visual Languages</i>. 1997 IEEE Symposium on Visual Languages. <a href="https://doi.org/10.1109/VL.1997.626601">https://doi.org/10.1109/VL.1997.626601</a>
  bibtex: '@inproceedings{Dücker_Geiger_Hunstock_Lehrenfeld_Müller_1997, place={Capri,
    Italy}, title={Visual-Textual Prototyping of 4D Scenes}, DOI={<a href="https://doi.org/10.1109/VL.1997.626601">10.1109/VL.1997.626601</a>},
    booktitle={Proceedings of the 1997 IEEE Symposium on Visual Languages}, author={Dücker,
    M. and Geiger, Christian and Hunstock, R. and Lehrenfeld, Georg and Müller, Wolfgang},
    year={1997} }'
  chicago: Dücker, M., Christian Geiger, R. Hunstock, Georg Lehrenfeld, and Wolfgang
    Müller. “Visual-Textual Prototyping of 4D Scenes.” In <i>Proceedings of the 1997
    IEEE Symposium on Visual Languages</i>. Capri, Italy, 1997. <a href="https://doi.org/10.1109/VL.1997.626601">https://doi.org/10.1109/VL.1997.626601</a>.
  ieee: 'M. Dücker, C. Geiger, R. Hunstock, G. Lehrenfeld, and W. Müller, “Visual-Textual
    Prototyping of 4D Scenes,” presented at the 1997 IEEE Symposium on Visual Languages,
    1997, doi: <a href="https://doi.org/10.1109/VL.1997.626601">10.1109/VL.1997.626601</a>.'
  mla: Dücker, M., et al. “Visual-Textual Prototyping of 4D Scenes.” <i>Proceedings
    of the 1997 IEEE Symposium on Visual Languages</i>, 1997, doi:<a href="https://doi.org/10.1109/VL.1997.626601">10.1109/VL.1997.626601</a>.
  short: 'M. Dücker, C. Geiger, R. Hunstock, G. Lehrenfeld, W. Müller, in: Proceedings
    of the 1997 IEEE Symposium on Visual Languages, Capri, Italy, 1997.'
conference:
  name: 1997 IEEE Symposium on Visual Languages
date_created: 2023-01-24T11:48:57Z
date_updated: 2023-01-24T11:49:01Z
department:
- _id: '672'
doi: 10.1109/VL.1997.626601
keyword:
- Prototypes
- Layout
- Animation
- Command languages
- Application software
- Libraries
- Virtual reality
- Computer graphics
- Hardware
- Context modeling
language:
- iso: eng
place: Capri, Italy
publication: Proceedings of the 1997 IEEE Symposium on Visual Languages
publication_identifier:
  isbn:
  - 0-8186-8144-6
status: public
title: Visual-Textual Prototyping of 4D Scenes
type: conference
user_id: '5786'
year: '1997'
...
---
_id: '39521'
abstract:
- lang: eng
  text: Investigates the integration of an interactive constraint solver into an existing
    2D real-time animation environment in order to achieve a better observability,
    traceability and stability of the individual graphical objects. We present two
    approaches for assigning constraints to the objects. The first approach assigns
    constraints to the objects when they are created, keeping them stable during their
    entire life-time. The second approach dynamically changes constraints before the
    computation of each frame. The investigation is based on our practical experience
    with the complete visual programming language Pictorial Janus and the parallel
    constraint solver Parcon.
author:
- first_name: P.
  full_name: Griebel, P.
  last_name: Griebel
- first_name: Georg
  full_name: Lehrenfeld, Georg
  last_name: Lehrenfeld
- first_name: Wolfgang
  full_name: Müller, Wolfgang
  id: '16243'
  last_name: Müller
- first_name: C.
  full_name: Tahedl, C.
  last_name: Tahedl
- first_name: H.
  full_name: Uhr, H.
  last_name: Uhr
citation:
  ama: 'Griebel P, Lehrenfeld G, Müller W, Tahedl C, Uhr H. Integrating a Constraint
    Solver into a Real-Time Animation Environment. In: <i>Proceedings of the 1996
    IEEE Symposium on Visual Languages</i>. ; 1996. doi:<a href="https://doi.org/10.1109/VL.1996.545262">10.1109/VL.1996.545262</a>'
  apa: Griebel, P., Lehrenfeld, G., Müller, W., Tahedl, C., &#38; Uhr, H. (1996).
    Integrating a Constraint Solver into a Real-Time Animation Environment. <i>Proceedings
    of the 1996 IEEE Symposium on Visual Languages</i>. <a href="https://doi.org/10.1109/VL.1996.545262">https://doi.org/10.1109/VL.1996.545262</a>
  bibtex: '@inproceedings{Griebel_Lehrenfeld_Müller_Tahedl_Uhr_1996, place={Boulder
    CO}, title={Integrating a Constraint Solver into a Real-Time Animation Environment},
    DOI={<a href="https://doi.org/10.1109/VL.1996.545262">10.1109/VL.1996.545262</a>},
    booktitle={Proceedings of the 1996 IEEE Symposium on Visual Languages}, author={Griebel,
    P. and Lehrenfeld, Georg and Müller, Wolfgang and Tahedl, C. and Uhr, H.}, year={1996}
    }'
  chicago: Griebel, P., Georg Lehrenfeld, Wolfgang Müller, C. Tahedl, and H. Uhr.
    “Integrating a Constraint Solver into a Real-Time Animation Environment.” In <i>Proceedings
    of the 1996 IEEE Symposium on Visual Languages</i>. Boulder CO, 1996. <a href="https://doi.org/10.1109/VL.1996.545262">https://doi.org/10.1109/VL.1996.545262</a>.
  ieee: 'P. Griebel, G. Lehrenfeld, W. Müller, C. Tahedl, and H. Uhr, “Integrating
    a Constraint Solver into a Real-Time Animation Environment,” 1996, doi: <a href="https://doi.org/10.1109/VL.1996.545262">10.1109/VL.1996.545262</a>.'
  mla: Griebel, P., et al. “Integrating a Constraint Solver into a Real-Time Animation
    Environment.” <i>Proceedings of the 1996 IEEE Symposium on Visual Languages</i>,
    1996, doi:<a href="https://doi.org/10.1109/VL.1996.545262">10.1109/VL.1996.545262</a>.
  short: 'P. Griebel, G. Lehrenfeld, W. Müller, C. Tahedl, H. Uhr, in: Proceedings
    of the 1996 IEEE Symposium on Visual Languages, Boulder CO, 1996.'
date_created: 2023-01-24T11:56:25Z
date_updated: 2023-01-24T11:56:30Z
department:
- _id: '672'
doi: 10.1109/VL.1996.545262
keyword:
- Animation
- Layout
- Computer languages
- Visualization
- Observability
- Stability
- Runtime
- Costs
- Graphics
- Hardware
language:
- iso: eng
place: Boulder CO
publication: Proceedings of the 1996 IEEE Symposium on Visual Languages
publication_identifier:
  isbn:
  - 0-8186-7508-X
status: public
title: Integrating a Constraint Solver into a Real-Time Animation Environment
type: conference
user_id: '5786'
year: '1996'
...