Package noaa.coastwatch.util.sensor

Class VIIRSIBandSDRParams

java.lang.Object
noaa.coastwatch.util.sensor.VIIRSIBandSDRParams
All Implemented Interfaces:
VIIRSSensorParams
public class VIIRSIBandSDRParams extends Object implements VIIRSSensorParams

The VIIRSIBandSDRParams class provides parameters for the VIIRS I-band Scientific Data Record (SDR) scan and deletion pattern. The I-band SDR scan is 6400 pixels wide by 32 pixels high and has some pixels deleted on the top and bottom four rows which results in less overlap of the scan than for example MODIS. The deletion pattern is as follows:

  • 1st row - First and last 2016 pixels deleted
  • 2nd row - First and last 2016 pixels deleted
  • 3rd row - First and last 1280 pixels deleted
  • 4th row - First and last 1280 pixels deleted
  • 5-28th rows - No deletions
  • 29th row - First and last 1280 pixels deleted
  • 30th row - First and last 1280 pixels deleted
  • 31st row - First and last 2016 pixels deleted
  • 32nd row - First and last 2016 pixels deleted

The pattern results in a scan that looks as follows:

     0       1280   2016                       4384   5120     6399
  0   ****************---------------------------****************
  1   ****************---------------------------****************
  2   *********-----------------------------------------*********
  3   *********-----------------------------------------*********
  4   -----------------------------------------------------------
  ..  -----------------------------------------------------------
  ..  -----------------------------------------------------------
  28  -----------------------------------------------------------
  29  *********-----------------------------------------*********
  30  *********-----------------------------------------*********
  31  ****************---------------------------****************
  32  ****************---------------------------****************
Since:
3.6.0
Author:
Peter Hollemans

  • Constructor Details

    • VIIRSIBandSDRParams

      public VIIRSIBandSDRParams()
      Creates a new parameters object.

  • Method Details

    • getScanWidth

      public int getScanWidth()
      Description copied from interface: VIIRSSensorParams
      Gets the scan width.
      Specified by:
      getScanWidth in interface VIIRSSensorParams
      Returns:
      the scan width in pixels.

    • getScanHeight

      public int getScanHeight()
      Description copied from interface: VIIRSSensorParams
      Gets the scan height.
      Specified by:
      getScanHeight in interface VIIRSSensorParams
      Returns:
      the scan height in pixels of one simultenous scan within a VIIRS granule.

    • getTopRowAtColumn

      public int getTopRowAtColumn(int col)
      Description copied from interface: VIIRSSensorParams
      Gets the top edge row of the swath at the specified column for any scan.
      Specified by:
      getTopRowAtColumn in interface VIIRSSensorParams
      Parameters:
      col - the column to query, [0..scanWidth].
      Returns:
      the row within the data that forms the top of the non-deleted part of the swath at the specified column.

    • getDeletionPattern

      public boolean[][] getDeletionPattern()
      Description copied from interface: VIIRSSensorParams
      Gets an array containing the deleted pixel pattern.
      Specified by:
      getDeletionPattern in interface VIIRSSensorParams
      Returns:
      the pixel deletion pattern for this sensor as an array of booleans of size [scanHeight][scanWidth] in which true indicates a pixel is deleted, and false indicates the pixel is valid.