CERN, ECP Division, PT Group, DALI
[Next]
Event Display: Can We See What We Want to See?[1]
H.Drevermann
CERN, Geneva
D.Kuhn
Institut für Experimentalphysik der Universität Innsbruck[2]
B.S.Nilsson
CERN, Geneva, and Niels Bohr Institute, Copenhagen
Abstract
Due to the complexity of HEP detectors and their data the graphical representation of events is necessary, but also very demanding. The paper covers physiological aspects, e.g. choice of colours, human pattern recognition and 3D vision. For the unbiased understanding of the data realistic 2D and 3D projections, schematic projections and abstract 2D and 3D projections are discussed.
- 1 - Introduction
-
- 2 - Pictures for Talks and Papers
-
- 2.1 - Front and Side View
-
- 2.2 - "Fish Eye Transformations"
-
- 2.3 - Histograms in a Picture
-
- 2.4 - Application of Colors
-
- 2.5 - Definition of colors
-
- 2.6 - Use of Frames
-
- 3 - Visual Analysis
-
- 3.1 - Use of picture transformations
-
- 3.2 - Helices in Cartesian and Angular Projections
-
- 3.3 - Lines through Sequences of Points
-
- 3.4 - Blow-up of a sequence of points
-
- 3.5 - Visualisation of the Vertex Region and the Inner Detectors
-
- 3.6 - Imaging Events from Fixed Target Detectors
-
- 3.7 - Island Representation of Calorimeters
-
- 4 - Three Dimensional Representations for Visual Analysis
-
- 4.1 - Perspective Projections
-
- 4.2 - Shading and Volume Rendering
-
- 4.3 - Smooth rotations.
-
- 4.4 - Stereo Images
-
- 4.5 - The Method of Technical Drawings
-
- 5 - Track Visualisation Close to the Primary Interaction Point
-
- 5.1 - Smooth Standard Rotations
-
- 5.2 - Artificial Display Cube
-
- 5.3 - Display of the Track to Track Distance
-
- 6 - The V-Plot, a Three Dimensional Representation for Visual Analysis of Tracks
-
- 6.1 - The Helix Representation via the V-Plot
-
- 6.2 - Application of the V-Plot, Example 1
-
- 6.3 - Application of the V-Plot, Example 2
-
- 6.4 - Extrapolation of Tracks via the V-Plot
-
- 6.5 - The V-Plot for Super High Multiplicity Events
-
- 6.6 - Generalisation of the V-Plot
-
- 6.7 - The V-Plot for Straight Track Sections Outside a Magnetic Field. (TPC Tracks of the NA35 Experiment)
-
- 6.8 - Interactive Correlation of Different Windows
-
- 7 - The Puzzle-Plot, a Three Dimensional Representation of Calorimeter Data
-
- 8 - Classification of Pictures
-
- 9 - Conclusions
-
- 10 - Acknowledgements
-
- 11 - References
-
- 12 - Further Reading
-
- 13 - Color Plates
-
[1] An extended version of "Is there a Future for Event Display?" [1]
[2] Supported by grant of Fonds zur Förderung der Wissenschaftlichen Forschung, Austria
Presented at the CERN School of Computing, Arles, France,
20 August - 2 September, 1995.
Converted with WebMaker
[Next]