Changeset 20366 for trunk/ppSim/src/ppSimMakeSky.c

Timestamp:

Oct 24, 2008, 2:53:53 PM (18 years ago)

Author:

eugene

Message:

apply the flat-field value to the stars; fix scatter term

File:

• trunk/ppSim/src/ppSimMakeSky.c (modified) (2 diffs)

trunk/ppSim/src/ppSimMakeSky.c

@@ -82 +82 @@
               // add a scattered light term to the flat-field images
               if (type == PPSIM_TYPE_FLAT) {
-                float xF = 2.0*(xFPA / dXfpa) - 1.0;
-                scatterRate = scatterFrac * PS_SQR(xF);
+                  scatterRate = scatterFrac * PS_SQR(xFPA);
               }
 
@@ -94 +93 @@
             // used later to modify the star and galaxy photometry 
             if (expCorr) {
-              expCorr->data.F32[y][x] = realExpTime / expTime;
+                // exposure correction is (effective exposure time) * (flatValue)
+              expCorr->data.F32[y][x] = flatValue * realExpTime / expTime;
             }