Introduction

PixelatorController communicates with clients (e.g. PixelatorGUI) via two ZMQ ports:

Publisher: PixelatorController broadcasts scan data and positioner updates.
Request: 2-way communication channel for clients to request info or actions from PixelatorController.

The port numbers used for these communication channels has to match in the configuration files for both PixelatorController and any clients.

PixelatorController

The settings file that is passed as an argument to the startup command must include the publisherPort and requestPort fields. For example:

"publisherPort" : "55561",
"requestPort" : "55562",

PixelatorGUI

The configuration of PixelatorGUI is in build/PixelatorGUI/etc/PixelatorGUI.ini. The Resouorce section must contain the PIXELATORCONTROLLER_PORT_PUBLISHER and PIXELATORCONTROLLER_PORT_REQUEST fields. The values of these fields must match the corresponding fields in the PixelatorController configuration. Further, the value of the PIXELATORCONTROLLER_HOSTNAME field must match the hostname of the machine that PixelatorController is running on. For example:

[Resource]
PIXELATORCONTROLLER_HOSTNAME="stxm-1.psi.ch"
PIXELATORCONTROLLER_PORT_PUBLISHER=55561
PIXELATORCONTROLLER_PORT_REQUEST=55562