Experimental Physics and
Industrial Control System

Hello,

I am using pvAccess to read image data from a NDPluginPVA in areaDetector.
When I do the following lines in my program:

PvaClientChannelPtr channel = pva->channel((m_ImagePrefix + *imgDataPV).toStdString().c_str(), m_AccessMethod->toStdString().c_str(), 2.0);
epics::pvData::shared_vector<const double> array = channel->getDoubleArray();

I get an error:
Error: PvaClientData::getDoubleArray() did not find a scalarArray field

m_AccessMethod->toStdString().c_str() returns "pva".
If I use the same code with channel access it works.
Do I have to pass some special string to getDoubleArray in case of NDPluginPVA?


Regards,

Jörn

Replies:

Re: Strange error from pvAccess Mark Rivers via Tech-talk

Navigate by Date:

Prev: Re: Is areaDetector documentation down? Maren Purves via Tech-talk

Next: Re: Strange error from pvAccess Mark Rivers via Tech-talk

Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  <2023>  2024 

Navigate by Thread:

Prev: "invalid output sync mutex" and ci-scripts on windows Michael Davidsaver via Tech-talk

Next: Re: Strange error from pvAccess Mark Rivers via Tech-talk

Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  <2023>  2024