Experimental Physics and
Industrial Control System

"Pearson, Matthew R." <[email protected]> · Wed, 20 Apr 2016 15:56:26 +0000

Hi Phil, 

We do the same as Bruno mentions. 

Data Height (ArraySize1_RBV) 
Data Width (ArraySize0_RBV)

where the PVs are from the StdArray plugin.

In addition you’ll also need to have additional rules for setting the X and Y axis Min and Max values. These rules use the PVs from the detector driver that knows about binning and ROI selection:

X Axis Min - (MinX_RBV)
Y Axis Min - (MinY_RBV)
X Axis Max (MinX_RBV + ArraySizeX_RBV)
Y Axis Max (MinY_RBV + ArraySizeY_RBV)

We also use a another rule that defines the maximum intensity (the Maximum property) based on a PV. Then we have a Scaled Slider widget to change the intensity. 

Cheers,
Matt

Data Acquisition and Control Engineer
Spallation Neutron Source
Oak Ridge National Lab

> On Apr 20, 2016, at 9:26 AM, Bruno Martins <[email protected]> wrote:
> 
> Hi Phil,
> 
> You can create two rules, for the data_width and data_height properties, that look at the $(P)ArraySize0_RBV and $(P)ArraySize1_RBV PV's
> 
> HTH,
> 
> Bruno
> 
> On Wed, Apr 20, 2016 at 6:44 AM, Phil Atkin <[email protected]> wrote:
> Thanks Gabriela,
> 
> - but I guess my question was ambiguous.  If I understand correctly, your script adjusts the height of the IntensityGraph widget so that its aspect ratio matches the image.
> 
> But the IntensityGraph will not display anything at all unless I set its Data Height and Data Width properties to match the attached array.  Do you have something to accomplish this?
> 
> Also: I have no idea how to actually attach the code or make it run at an appropriate time.  Can you point me at documentation that describes this?
> 
> Thanks
> 
> Phil
> 
> 
> On 20/04/2016 11:34, [email protected] wrote:
> this is the very simple python script that I use:
> 
> from org.csstudio.opibuilder.scriptUtil import PVUtil
> 
> imageWidget        = display.getWidget('Image')
> imageXSizeWidget   = display.getWidget('X-Size')
> imageYSizeWidget   = display.getWidget('Y-Size')
> 
> try :
>     imageXSizePV   = imageXSizeWidget.getPV()
>     imageYSizePV   = imageYSizeWidget.getPV()
> 
>     nImageRows    = PVUtil.getLong(imageYSizePV)
>     nImageColumns = PVUtil.getLong(imageXSizePV)
> 
>     imageWidget.setPropertyValue('graph_area_width', 512)
>     imageWidget.setPropertyValue('graph_area_height', (512.0/nImageColumns)*nImageRows)
> 
> except :
>     pass
> 
> 
> 
> Phil Atkin <[email protected]> ha scritto:
> 
> Hi,
> 
> I'm using BOY IntensityGraph to show a (stdArray) output image from an areaDetector driver/plugin.
> The size of my array changes quite a bit.
> Can someone tell me (in laborious detail if necessary, please) how to set up scripts or "embedded rules" on the IntensityGraph to cope with a variable-sized image?
> 
> Thanks!
> 
> Phil
> 
> 
> 
> 
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System