HDF Explorer is a data visualization program that reads Hierarchical Data Format files (HDF, HDF-EOS and HDF5) and also netCDF data files.HDF Explorer offers a simple yet powerful interface for the visualization of HDF data. The data is just a click of the mouse away. Data is first viewed in a tree-like interface, and then optionally loaded and visualized in a variety of ways. HDF Explorer features include fast access to data, grid, scalar and vector views. It also allows exporting your data either as a ASCII text file or a bitmap image. HDF Explorer supports HDF5 dimension scales.

1. Pedro Vicente Nunes
HDF and HDF-EOS Workshop XI, Landover, MD
November 6 – November 8, 2007
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2. Space Research Software
http://www.space-research.org/
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3. Introduction
• What is HDF Explorer ?
• HDF, HDF5 and netCDF data reader,
visualization tool
• Summary of presentation
• Several Image options with the discrete Map
view, Continuous Map view and Vector View
• HDF5 Dimension Scales features
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4. Access data
1) Browse object tree
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1) Right-click on
objects to get menu
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5. Grid View
• An Excel like grid with each cell an element
datum
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6. Discrete Map View
• Data is visualized as a map of colors. The colors are
associated with a discrete range of values.
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7. Map options
• In the Draw options dialog box the user can choose to
draw the color of each cell and to draw a grid
surrounding each cell.
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8. Map options
• Now the grid is drawn
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9. Fill options
•
Ignore or not a fill value in the making of the map, that
is, the fill value is not translated to a color. The user also
has an option to draw the fill value border in the grid.
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10. Fill options
•
A map with the fill values not translated to a color
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11. Dimension options
•
Choose to visualize or not the dataset dimensions (values
in legend) in the map
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12. Axis options
•
Options to draw space dimensions information (north,
south, east, west, distance between ticks)
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13. Size options
•
Change the size of the image
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14. Legend options
•
Change the values of the legend discrete intervals
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15. HDF5 Dimension scales (H5DS)
•
Allows choosing of one of several Dimension Scales
datasets to be shown either in grid or map view
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16. HDF5 Dimension scales
•
Click over each one of the dimension scales to select it.
All available dimension scales are shown for each
dimension
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17. One map with a set of H5DSs
•
1 - 2.2
2.2 - 3.4
3.4 - 4.7
4.7 - 5.9
5.9 - 7.1
7.1 - 8.3
8.3 - 9.6
100
30
10
30
10
100
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9.6 - 11
300
11 - 12
300
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18. Another set of H5DSs on the same dataset
•
100
200
300
1 - 2.2
400
2.2 - 3.4
3.4 - 4.7
4.7 - 5.9
300
300
5.9 - 7.1
7.1 - 8.3
8.3 - 9.6
100
100
9.6 - 11
11 - 12
10
10
100
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200
300
400
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