.. java:import:: java.util ArrayList

.. java:import:: org.apache.commons.math MathException

.. java:import:: org.apache.commons.math.special Erf

.. java:import:: ch.epfl.leb.sass.models.emitters.internal Pixel

.. java:import:: ch.epfl.leb.sass.models.psfs PSF

.. java:import:: ch.epfl.leb.sass.models.psfs PSFBuilder

.. java:import:: java.util.logging Level

.. java:import:: java.util.logging Logger

Gaussian2D
==========

.. java:package:: ch.epfl.leb.sass.models.psfs.internal
   :noindex:

.. java:type:: public final class Gaussian2D implements PSF

   Generates a digital representation of a two-dimensional Gaussian PSF.

   :author: Kyle M. Douglass

Methods
-------
generatePixelSignature
^^^^^^^^^^^^^^^^^^^^^^

.. java:method:: @Override public double generatePixelSignature(int pixelX, int pixelY) throws MathException
   :outertype: Gaussian2D

   Computes the relative probability of receiving a photon at the pixel. (emitterX, emitterY). The z-position of the emitter is ignored.

   :param pixelX: The pixel's x-position.
   :param pixelY: The pixel's y-position.
   :throws org.apache.commons.math.MathException:
   :return: The probability of a photon hitting this pixel.

generateSignature
^^^^^^^^^^^^^^^^^

.. java:method:: public void generateSignature(ArrayList<Pixel> pixels)
   :outertype: Gaussian2D

   Generates the digital signature of the emitter on its nearby pixels.

   :param pixels: The list of pixels spanned by the emitter's image.

getFWHM
^^^^^^^

.. java:method:: public double getFWHM()
   :outertype: Gaussian2D

getRadius
^^^^^^^^^

.. java:method:: @Override public double getRadius()
   :outertype: Gaussian2D

   Computes the half-width of the PSF for determining which pixels contribute to the emitter signal. For a 2D Gaussian, the effective width used here is three times the standard deviation.

   :return: The width of the PSF.

setFWHM
^^^^^^^

.. java:method:: public void setFWHM(double fwhm)
   :outertype: Gaussian2D