Source: http://hdfeos.org/workshops/ws02/presentations/pedro/pedro.ppt

1. HDF Explorer
HDF-EOS
WORKSHOP II
By
Pedro Vicente
September 22, 23 & 24,
1998
Landover, MD
Mind

2. Topics
• Why we adopted the HDF data
format
• The HDF Explorer ancestor:A
graphical interface for an
hydrodynamic numerical
model
• HDF Explorer

3. Why HDF ?
• (We )Marine Environment unit
at Technical University of
Lisbon (Portugal) MARETEC
(1993-1997)
• http://hidrox.ist.utl.pt/maretec

4. 3D baroclinic hydrodinamical
and transport model
• Since 1984. FORTRAN coded
• Initial system: VAX/Open VMS: data is
written in binary format
• Later: VAX/ Open VMS with different
word size: result: convert all the data
• Later again: (1993)Digital Alpha/NT
result: convert all the data

5. 3D baroclinic hydrodinamical
and transport model
• Later again: Intel Pentium/NT result:
convert all the data
• Enough: Let´s go to HDF: main
advantages: portability, graphic tools
that read it.

6. The HDF Explorer
ancestor:A graphical
interface for the model
• Why do it ? 2 reasons:
• The model has very specific features
(sigma/ double sigma coordinate
system)
• The lack of a definite Windows based
graphical software

7. Examples: model grids
10
20
30
40
50
60
70
80
10
20
30
40
50
60
70
80
60
55
50
45
40
35
30
25
20
15
10
5
Mohid Data Explorer
Bathyme try

8. Examples: density fields (2d
maps)
10
20
30
40
50
60
70
80
90
60
60
55
55
50
50
45
45
40
40
35
35
30
30
25
25
20
20
15
15
10
10
5
5
10
Mohid Data Explore r
20
30
40
50
60
Temperature (s igma)
70
80
90

9. Examples: velocity fields,
contours
10
20
30
40
35
35
30
30
25
25
20
20
15
15
10
10
5
5
1 0 cm /
s
10
Mohid Data Explorer
20
30
Horiz ontal v elocity (s igma)
40

10. HDF Explorer
• (We )MIND (1997-1998)
• Multimedia and Industrial
software . Headquarters :
Lisbon (Portugal)
• http://www.mind.pt/hdf.explorer

11. The Future
• HDF-EOS
• 3D (Open GL)
• Contours
• More: feedback from customers

12. Cellular automata in 3D
Space simulation including cellular automata, hydrodynamics
and eulerian dispersion
with
http://hidrox.ist.utl.pt/maretec/vicente/software/spacewin/spacewin.htm