Experimental Physics and
Industrial Control System

Hinxx <[email protected]> · Tue, 12 Jul 2016 09:52:37 +0200

Hi Mark,


Binning handling in AD andorCCD support does not allow to produce full

vertical binning (width x 1 image). Looking at the code I noticed that

some magic with trying to figure out the minY might be the problem. Also

when trying to come up with the binY values Andor SDK rejects some valid

binning values because other parameters to SetImage() are invalid.



unsigned int WINAPI SetImage(int hbin, int vbin, int hstart, int hend,

int vstart, int vend)



For example Andor Luca with 1004x1002 detector and binY set to 1002

yields this call to the SetImage():


SetImage(1,1002,1,1004,-1001,0)

Of course it results in error from Andor SDK (-1001 is not valid minY).

Probably same applies to horizontal binning..



After changing some of the lines of the andorCCD.cpp I can successfully

set binY to 1002 and get 1004 x 1 image:

diff --git a/andorApp/src/andorCCD.cpp b/andorApp/src/andorCCD.cpp
index ff09114..2ff92e0 100755
--- a/andorApp/src/andorCCD.cpp
+++ b/andorApp/src/andorCCD.cpp
@@ -1060,12 +1060,12 @@
   getIntegerParam(ADSizeY, &sizeY);
   getIntegerParam(ADMaxSizeX, &maxSizeX);
   getIntegerParam(ADMaxSizeY, &maxSizeY);
-  if (minX > (maxSizeX - 2*binX)) {
-    minX = maxSizeX - 2*binX;
+  if (minX > (maxSizeX - binX)) {
+    minX = maxSizeX - binX;
     setIntegerParam(ADMinX, minX);
   }
-  if (minY > (maxSizeY - 2*binY)) {
-    minY = maxSizeY - 2*binY;
+  if (minY > (maxSizeY - binY)) {
+    minY = maxSizeY - binY;
     setIntegerParam(ADMinY, minY);
   }
   if ((minX + sizeX) > maxSizeX) {

The call to SetImage() is now:

SetImage(1,1002,1,1004,1,1002)



This change might break other Andor detectors, here at ESS and with CEA

partner we can test Andor Newton and Andor Luca.



Thanks,
Hinko



Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System