Index: /branches/eam_branch_20070921/psphot/doc/psfmodel.txt
===================================================================
--- /branches/eam_branch_20070921/psphot/doc/psfmodel.txt	(revision 14969)
+++ /branches/eam_branch_20070921/psphot/doc/psfmodel.txt	(revision 14970)
@@ -1,2 +1,22 @@
+
+2007.09.20
+
+  I am upgrading the PSF model to allow the parameter variation to be
+  modeled with pmTrend2D instead of just polynomials.  I am making a
+  list of places to modify the code:
+
+pmPSFAlloc : need a method beyong psfTrendMask to carry in the psf
+options
+
+pmPSF_ModelToFit : no need to change these
+
+update pmPSFBuildSimple to set the parameters of the pmTrend, which
+ever is used.
+
+pmPSFtry.c: some significant re-work!
+
+
+
+pmPSF_IO : need new functions to save / load the trend (psImages)
 
 2006.10.27