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C.1 NCSA PolyView
Limitations of NCSA PolyView C.1
National Center for Supercomputing Applications
August 1990
August 1990
Appendix C Limitations of NCSA PolyView
Overview
This appendix lists some limitations of NCSA PolyView version
1.0.
Limitations
Keep the following two limitations in mind while entering data:
Ñ You must be careful to scale data appropriately for the display.
For example, displaying the temperature distribution across a
MOSFET whose scale is stored in terms of meters (but is on the
order of microns) and has a temperature range in tens of
degrees Celsius would be difficult to display using temperature
as the Z axis value.
Ñ Many assumptions are made concerning data types in the HDF
file. All datasets are assumed to be "float". However,
connectivity information should be stored as integers.
The constraints below should be amended in future versions of
NCSA PolyView.
Ñ The ability to load HDF palettes is not supported.
Ñ Due to difficulties with Z-buffering on the Personal IRIS, some
overlays may appear "broken" or "noisy." SGI is aware of the
source of this problem and plans to fix it with a new software
release by Fall 1990.
Ñ The command line parser may crash if an incorrect number of
arguments is provided for a vector value.