Package skyview.survey

Class Subset

java.lang.Object
skyview.survey.Image
skyview.survey.Subset
All Implemented Interfaces:
Serializable, Component
public class Subset extends Image
A image that is a subset of an existing image. Generally this class is expected to be used when we break down a larger image into subimages for sampling purposes. Any action that modifies the image should use the setData or setDataArray methods. Modifying the array returned by getDataArray will not modify the underlying image. E.g., the BoxSmoother should not be run on the subset images but on the parent.
See Also:

  • Constructor Details

  • Method Details

    • getDescription

      public String getDescription()
      Get a description of the object
      Specified by:
      getDescription in interface Component
      Overrides:
      getDescription in class Image

    • getData

      public double getData(long npix)
      Get a pixels data associated with the image.
      Overrides:
      getData in class Image

    • getDataArray

      public double[] getDataArray()
      Get the data as an array. Note that for an image this array can be used to modify the image, but that will not be true for the array returned here.
      Overrides:
      getDataArray in class Image

    • setData

      public void setData(long npix, double newData)
      Set the data associated with the image.
      Overrides:
      setData in class Image

    • clearData

      public void clearData()
      Clear the data array
      Overrides:
      clearData in class Image

    • setDataArray

      public void setDataArray(double[] newData)
      Set the data array
      Overrides:
      setDataArray in class Image

    • split

      public static Image[] split(Image parent, int nx, int ny) throws TransformationException
      Split an image into subsets. If the image is too small, just return it/
      Throws:
      TransformationException

    • split

      public static int[][] split(Image parent, int[] index, int nx, int ny)
      Split an index array into subarrays for each subset. If the image is too small, just return it/