Changeset 28125 for trunk/ppSim/src/ppSimLoop.c

Timestamp:

May 26, 2010, 4:31:49 PM (16 years ago)

Author:

eugene

Message:

add ppSim option to convolve to a PSF rather than generating stars with the specified PSF

File:

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

trunk/ppSim/src/ppSimLoop.c

@@ -30 +30 @@
     ppSimType type = ppSimTypeFromString (typeStr); // Type of image to simulate
     int binning = psMetadataLookupS32(NULL, recipe, "BINNING"); // Binning in x and y
+
+    bool psfConvolve = psMetadataLookupBool(NULL, recipe, "PSF.CONVOLVE"); // smooth the image with the PSF?
 
     ppSimUpdateConceptsFPA (fpa, config);
@@ -155 +157 @@
                 psFree(expCorr);
 
+                // we have two options for generating images which have a PSF:
+                // 1) lay down stars with the PSF model applied : in this case, galaxies do NOT have the PSF
+                // 2) lay down delta functions for stars and smooth the image with a PSF : in this case, the stars land at integer pixel locations
+                if (psfConvolve) {
+                    if (!ppSimSmoothReadout(readout, recipe)) ESCAPE (PS_ERR_UNKNOWN, "problem smoothing image");
+                }
+
             done:
                 if (!ppSimAddNoise(readout->image, readout->variance, cell, config, rng)) ESCAPE (PS_ERR_UNKNOWN, "problem adding noise");