ndscope 0.20.12

Next-generation NDS time series plotting

Next-generation NDS oscilloscope

ndscope is a tool for viewing time series data from the LIGO Arrakis and NDS network data services. Based on dttlib and the high-performance pyqtgraph plotting library, ndscope is a able to plot both online and offline data for many channels simultaneously with intuitive mouse pan/zoom support.

Features:

• online mode for raw and trend data
• mouse pan and zoom, with background auto-fetch of new data
• automatic transition to second/minute trend data at appropriate zoom levels
• triggering, for true oscilloscope behavior
• cursors and crosshair in both time and Y axes
• save layout templates in easy-to-use YAML format
• load templates from various legacy formats, including StripTool .stp, dataviewer .xml, and .txt
• enhanced "StripTool mode" with auto-backfill of past data
• Arrakis and NDS protocol support
• channel selection GUI

Left mouse click+drag for pan, and right mouse click+drag for zoom (left/right for in/out in time, and up/down for in/out in Y). Click+drag on axis to retrict pan/zoom to only that dimension.

Issues

Please report issues to the gitlab issue tracker.

Requirements

Package requirements for ndscope (Debian package names):

• python3-pyqtgraph
• dttlib
• arrakis-rs or nds2-client (but see NDS2 dependency)
• python3-qtpy
• python3-gpstime
• python3-dateutil
• python3-yaml
• python3-cairosvg
• python3-h5py

The following packages are used for development purposes:

• pyqt5-dev-tools
• qt5-designer
• python3-setuptools_scm
• pytest3-pytest

Pre-built binary packages are available via pip and conda and for the various IGWN supported operating systems.

NDS2 dependency

ndscope does not directly depend on NDS2 client, but all published versions of dttlib do depend on NDS2 client.

It is possible to make a custom build of dttlib that does not depend on NDS2 client. ndscope would then be arrakis-only, and could not connect to NDS servers.