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<== Date ==> | <== Thread ==> |
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Subject: | Re: Adding a second output array to an areaDetector IOC |
From: | Mark Rivers via Tech-talk <tech-talk at aps.anl.gov> |
To: | "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>, Iain Marcuson <iain.marcuson at sydortechnologies.com> |
Date: | Tue, 25 Jan 2022 02:47:46 +0000 |
Hi Iain,
Before answering your question, I have 2 suggestions:
If you really do want to export an NDArray then you just need need to change "addr" in the second call to 1, because that is the addr you defined for the xprof profile.
doCallbacksGenericPointer(pImage, NDArrayData, 0); // And call for profile doCallbacksGenericPointer(pProfile, NDArrayData, 1);
Mark
From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Iain Marcuson via Tech-talk <tech-talk at aps.anl.gov>
Sent: Monday, January 24, 2022 6:02 PM To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov> Subject: RE: Adding a second output array to an areaDetector IOC As an addendum, I was able to get $(P)xprof:ArrayData updating by doing caput $(P)xprof:EnableCallbacks 1
although I still have the problem of the output data collision.
From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of Iain Marcuson via Tech-talk
I am working on a custom areaDetector IOC and also trying to learn more of the general areaDetector architecture. For a first test, I have tried to add some profile functionality to the IOC.
I have started by creating an array for the output, following the example from mythen.
# Create a standard arrays plugin NDStdArraysConfigure("Image1", 3, 0, "$(PORT)", 0, 0) dbLoadRecords("$(ADCORE)/db/NDStdArrays.template", "P=$(PREFIX),R=image1:,PORT=Image1,ADDR=0,TIMEOUT=1,NDARRAY_PORT=$(PORT),NDARRAY_ADDR=0,TYPE=Float64,FTVL=DOUBLE,NELEMENTS=$(NCHANS)")
# Create a standard arrays plugin for column profile NDStdArraysConfigure("XProfile", 3, 0, "$(PORT)", 0, 0) dbLoadRecords("$(ADCORE)/db/NDStdArrays.template", "P=$(PREFIX),R=xprof:,PORT=XProfile,ADDR=0,TIMEOUT=1,NDARRAY_PORT=$(PORT),NDARRAY_ADDR=1,TYPE=Float64,FTVL=DOUBLE,NELEMENTS=$(NCOLS)")
In the callback of the IOC, I create an NDArray for a column profile and populate the array.
When I run the IOC and start acquisition, $(P)xprof:ArrayData is undefined but of the correct size. When I look at the image output in ImageJ, the display flickers between the full image and a one-row display of the profile data. Some experimentation leads me to believe that the problem comes from the following lines:
if (arrayCallbacks) { /* Call the NDArray callback */ doCallbacksGenericPointer(pImage, NDArrayData, 0); // And call for profile doCallbacksGenericPointer(pProfile, NDArrayData, 0); }
How can I get the two data separate? Is the solution to make a profile plugin and feed the data to that?
Thank you,
Iain Marcuson Software Engineer, Sydor Technologies 585.278.1168 | www.SydorTechnologies.com Skype: iain.marcuson at sydorinstruments.com
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