General Settings

The first tab of the configuration dialog contains General Settings. It is divided into a few groups:

Image source

• Refresh time in s: select a minimal time between consecutive frames

• Auto enlarge refresh time automatically changes the refresh time if it is too small

• Number of image sources: a number of different image sources from which images should be stitched

• Map images to color channels: places images form different image sources to separate color channels

• Interrupt on source errors: stops live image viewing on image source errors

• Display specific for a source: store/retrieve display parameters for an each image source separately

• Source timeout in ms: maximal time in milliseconds to wait for a response , e.g. from Hidra or HTTP image sources

• ZMQ colon conf. separator: use “:” character to separate topic and HWM in the ZMQ configuration string i.e. host:port[:topic[:HWM]] ZMQ configuration syntax instead of host:port[/topic[/HWM]]

Statistics and 1d plots

• Intensity scaling: applies the intensity display scaling to image statistics and 1d-plots

• Calculate variance: perform calculations of variance from image pixel intensities

ZMQ security stream

• Enabled: turns on sending the ZMQ security stream with basic information about the image, e.g. maximal intensity

• Automatic port: selects a port number for the ZMQ security stream automatically

• Port: defines a port number for the ZMQ security stream

Image display

• Maximal memory buffer size: maximal frame number in the memory buffer

• Mask pixels with NAN: stores masked pixels as a float Not-A-Number (NAN)

• Max value added to negative mask: add maximal type value of current image to the negative high value mask

• Pixel masks with zero values: causes that zero pixel values of mask image are interpreted as masking

• Intensity overflow color: causes that pixels with intesity over the overflow value are ploted in the color

• Keep original coordinates: causes the 2D-plot axes transforms with image transformation

• Lazy image slider: plot a new image after the image slider is focused out

• Aspect Ratio locked: sets the aspect ratio to 1:1 in the 2D-plot

• Auto Down-Sample: turns on auto-down-sampling mode of pyqtgraph

• Float type for intensity: type to which intensity is converted if it is changed to float type

• Accelerate memory buffer sum: speeds up calculation of an image sum for the memory buffer tool

• Image channels with gradient colors: use gradient color maps to display pixel intensities in the RGB-channel mode

• Ranges and ROIs Colors: allows to defined colors of Ranges or ROIs selection frames. Colors are used cyclically

ROIs

• Show all ROIs values: calculates ROIs sum values for all ROI frames

• Send ROIs values: sends ROIs sum values to LaVueController tango server

• Single ROIs aliases: adds rois1, roi2, roi3, … aliases if a number of rois is higher than their aliases

Tools

• Store detector geometry for Angle/Q: store the detector geometry for the Angle/Q tool in the configuration settings

• Geometry form a source: fetch metadata parameters describing detector geometry from the image source

• Display extension refresh time in s: Minimum refresh time for display extensions

• Parameter polling interval in s: time in seconds between read-outs of detector tango attributes in the Parameters tool

• Crosshair locker switched on: initial status of intensity crosshair locker

• Diffractogram size: number of points in the diffractogram

• Correct Solid Angle: correct solid angle flag for diffractogram

• Send results to LavueController: sends the current tool results to LaVueController tango server

Sardana

• Enabled: turns on communication with Sardana

• Door: Door tango device to communicate with Sardana

• Add ROIs to MG: causes the ROIs Apply button adds the corresponding ROIs aliases into the current Sardana Measurement Group

• Fetch ROIs order: read a ROIs order from Sardana environment variables