Package uk.ac.starlink.ttools.plot

Class DensityStyle

java.lang.Object
uk.ac.starlink.ttools.plot.DensityStyle
All Implemented Interfaces:
Icon, Style
public abstract class DensityStyle extends Object implements Style, Icon
Style for the way that a density map (2d histogram) is plotted.
Since:
1 Dec 2005
Author:
Mark Taylor

  • Field Details

  • Constructor Details

    • DensityStyle

      public DensityStyle(DensityStyle.Channel channel)
      Constructs a new style which plots in a given colour channel.
      Parameters:
      channel - colour channel

  • Method Details

    • setShader

      public void setShader(Shader shader)
      Sets the shader to use in indexed (non-RGB) mode. This should be an absolute shader.
      Parameters:
      shader - shader

    • getShader

      public Shader getShader()
      Returns the shader to use in indexed (non-RGB) mode. This should be an absolute shader.
      Returns:
      shader

    • levelBits

      public int levelBits(byte level)
      Defines how the style looks. This converts an unsigned byte value (that is a value in the range 0-255 got by doing value=0x000000ff&level) to a bitmask which can be OR-ed with an existing integer to give a 32-type ARGB colour value.
      Parameters:
      level - unsigned byte value
      Returns:
      ORable bit mask for modifying a colour value

    • isRGB

      protected abstract boolean isRGB()
      Indicates whether the plotting is currently to be treated as three-channel RGB plotting or as single-channel intensity plotting.
      Returns:
      true iff plotting is currently three-channel

    • getLegendIcon

      public Icon getLegendIcon()
      Description copied from interface: Style
      Returns an icon suitable for displaying in a legend for this style.
      Specified by:
      getLegendIcon in interface Style

    • getIconHeight

      public int getIconHeight()
      Specified by:
      getIconHeight in interface Icon

    • getIconWidth

      public int getIconWidth()
      Specified by:
      getIconWidth in interface Icon

    • paintIcon

      public void paintIcon(Component c, Graphics g, int x, int y)
      Specified by:
      paintIcon in interface Icon

    • toString

      public String toString()
      Overrides:
      toString in class Object