Description: This procedure reads any HDF file which contains one or more 2-dimensional Scientific Data Sets (SDSs). To select this option, use the menu option
Navigation will be available if the HDF file contains both a Latitude and Longitude 2-dimensional SDS. This pair of lat/lon SDSs MUST follow one of the following naming conventions:
As in previous versions of SeaDAS, HDF navigation will also be available for images in a regular grid, whose HDF headers contain the same navigation extents fields as those found in SeaDAS SMI products. (e.g. "Northernmost Latitude", "Southernmost Latitude", Westernmost Longitude", "Easternmost Longitude", etc.)
Once HDF images are loaded, they can be used with full SeaDAS image processing functions (grid, coastline, rline, shiptrack, image merging, remapping, etc.).
Note: There is no hard-coded limit to the number of files loaded into memory at one time. The only limit is the memory limit of your machine.
[Interactive
mode][Command mode]
Once an HDF input file is selected, the widget expands to show all the available 2-dimensional SD data objects in that file. Once data products are selected, press the Load button to load the products into memory and make available for display. It is not necessary to close the HDF Product Selection Widget in order to see the products in a new file, simply enter or select a new file and the product list will automatically update.
From Main Menu , select menu item Load -> HDF.
File Selection Section:
| HDF Filename | Files
can be selected in one of two ways:
|
| Select | Interactively select a HDF input file. |
| Okay | Show a listing of the available data products in this file. (This is only needed if the user manually enters a file name and does not hit <RETURN>) |
| Pixel Sample Rate | Select a pixel sample rate for reading the data into memory. |
| Line Sample Rate | Select a line sample rate for reading the data into memory. |
| Reverse Image Display | Flip over image in display. Default: no |
Product Selection Section:
| Select One or Many Products buttons | Select any number of products desired for reading into memory. |
| Quit | Delete the Product Selection For HDF widget. Products already loaded into memory will still be available. |
| Help | Show this help in HTML viewer. |
| Select All | Select all products listed. |
| Select None | Deselect all products listed. |
| Load | Read selected data products and attributes into memory, into available band list, and make available for display. |
