Changeset 41158 for trunk/Ohana/src/opihi/cmd.astro/cdensify.c

Timestamp:

Nov 27, 2019, 11:04:04 AM (7 years ago)

Author:

eugene

Message:

add binning factors to cdensify and cdhistogram; allow region to generate anamorphic projections, specify xsize and ysize independently

File:

• trunk/Ohana/src/opihi/cmd.astro/cdensify.c (modified) (2 diffs)

trunk/Ohana/src/opihi/cmd.astro/cdensify.c

@@ -39 +39 @@
   }
 
+  int binning = 1;
+  if ((N = get_argument (argc, argv, "-binning"))) {
+    remove_argument (N, &argc, argv);
+    binning = atoi(argv[N]);
+    remove_argument (N, &argc, argv);
+  }
+
   int PSFTYPE = IS_DOT;
   if ((N = get_argument (argc, argv, "-psf"))) {
@@ -80 +87 @@
   Ymax = graphmode.ymax;
   Ymin = graphmode.ymin;
-  dX = (Xmax - Xmin) / (Xpix - 1);
-  dY = (Ymax - Ymin) / (Ypix - 1);
+
+  // (dX, dY) are the pixel scale of the output image (output pixels / input pixels)
+
+  dX = binning * (Xmax - Xmin) / (Xpix - 1);
+  dY = binning * (Ymax - Ymin) / (Ypix - 1);
 
   CHECKVAL(Xmin);