Experimental Physics and
Industrial Control System

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	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
<== Date ==>		<== Thread ==>

Subject:	Re: Channel Archiver \| Matlab
From:	John Dobbins <[email protected]>
To:	Eric Berryman <[email protected]>
Cc:	[email protected]
Date:	Fri, 03 Aug 2007 16:16:05 -0400

Eric Berryman wrote:

Hello!

I'm having some problems with the Matlab part of the Channel Archiver.
 Everything compiles (mex) fine in the /Matlab directory (make
matlab), but when any of the matlab commands are executed in matlab
(example: ml_arch_plot), I receive the following error:

??? Invalid MEX-file
'/opt/epics/extensions/src/ChannelArchiver/Matlab/O.linux-x86/ArchiveData.mexglx':
libdbStaticHost.so: cannot open shared object file: No such file or
directory.

The file libdbStaticHost.so is in
/opt/epics/base-3.14.9/lib/linux-x86/ as would be expected.

Has anyone else run into this problem?

Thank you!
Eric Berryman

Cyclotron Controls Engineer
National Superconducting Cyclotron Laboratory
Michigan State University

I also had trouble getting the Matlab mex files to build and work however I realized one can use Matlab along with the archiveviewer.jar file to access Archiver data (no mex files required). Example Matlab session follows (this is localized so you will need to make some changes).

***************************************

>> javaaddpath(fullfile(matlabroot,'work','archiveviewer.jar'))

>> client = epics.archiveviewer.clients.channelarchiver.ArchiverClient();

>> client.connect('http://ees101/archive/cgi/ArchiveDataServer.cgi', []);

>> client.getServerInfoText()

ans =

http://ees101/archive/cgi/ArchiveDataServer.cgi
Server version: 0
----------------------------------------
Description
Channel Archiver Data Server V0,
built Dec  7 2005, 10:04:55
from sources for version 2.6.0
Config: '/mnt/disk1/www/html/archive/serverconfig.xml'
----------------------------------------
Methods
average
linear
plot-binning
spreadsheet
raw

>> x = client.getAvailableArchiveDirectories()

x =

epics.archiveviewer.ArchiveDirectory[]:
    [epics.archiveviewer.clients.channelarchiver.ArchiveInfo]

>> x(1).getName

ans =

Room128

>> y = client.search(x(1), 'gun_hv_volt_rdbk', [])

y =

epics.archiveviewer.AVEntry[]:
    [epics.archiveviewer.clients.channelarchiver.CAEntry]

>> z = client.getAVEInfo(y(1))

z =

epics.archiveviewer.AVEntryInfo@86359

>> start_t = z.getArchivingStartTime()

start_t =

1.1685e+012

>> end_t = z.getArchivingEndTime()

end_t =

1.1713e+012

>> r = client.getRetrievalMethod('linear')

r =

linear

>> req_obj = epics.archiveviewer.RequestObject(start_t, end_t, r, 1000)

req_obj =

epics.archiveviewer.RequestObject@80000003

>> data = client.retrieveData(y, req_obj, [])

data =

epics.archiveviewer.ValuesContainer[]:
    [epics.archiveviewer.clients.channelarchiver.NumericValuesContainer]

.

>> data(1).getNumberOfValues()

ans =

248

>> data(1).getValue(1)

ans =

[0.0]

>> data(1).getValue(2)

ans =

[0.0]

>> data(1).getValue(3)

ans =

[176.269315853876]

>> data(1).getTimestampInMsec(3)

ans =

1.1685e+012

>>

References:: Channel Archiver | Matlab Eric Berryman

Navigate by Date:: Prev: Channel Archiver | Matlab Eric Berryman; Next: Re: Channel Archiver | Matlab Kay-Uwe Kasemir; 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: Channel Archiver | Matlab Eric Berryman; Next: Re: Channel Archiver | Matlab Kay-Uwe Kasemir; 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

ANJ, 10 Nov 2011

· Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System