Keywords: imager

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## Functional changes from previous versions

Changes in Version 3.3

- 23-Mar-2022 Introduce the blue`IMAGER\` language. Implement the magenta`PIPELINE` command there, and some miscellaneous (previously user-defined) commands like magenta`TIPS` and magenta`POPUP`

Changes in Version 3.2

- 18-Mar-2022 Add the magenta`CLEAN /RESTART` capability
- 10-Mar-2022 Improve dirty beam related commands behaviour: replace blue`MAP_BEAM_STEP` by blue`BEAM_STEP`, use blue`BEAM_SIZE` to specify beam shape.
- 07-Mar-2022 Allow magenta`WRITE BEAM /APPEND` in all cases
- 08-Feb-2022 Implement the blue`CLEAN_STOP` syntax in magenta`CLEAN`
- 10-Jan-2022 Implement the magenta`LOAD` command in red VIEWER.
- 07-Jan-2022 Implement magenta`SHOW`PV and improve transposed data display.
- 06-Jan-2022 Allow direct magenta`READ` of FITS data cubes.
- 03-Jan-2022 Improve syntax of magenta`COMBINE`
- 17-Dec-2021 Improve magenta`UV_CHECK BEAM` and magenta`FIT` commands.
- 16-Dec-2021 Add the magenta`UV_MERGE /MODE CONCATENATE` command to stitch adjacent or overlapping spectral windows. Imaging is in general only possible using blue`BEAM_STEP = 1` after this, so far.
- 13-Dec-2021 Implement a fast, reliable version of "statcont" through the magenta`MAP_CONTINUUM` command (run time secs for a 28 Gbyte data set on a 64-core machine)
- 13-Dec-2021 Globally revised the Robust weighting scheme. Speed up by huge amount for large (> 10 MegaVis) number of visibilities. UV data sorting not required anymore.
- 08-Dec-2021 Change the CASA - GILDAS interface. Use pure-Python scripts and put them in the `$HOME/.casa` directory to have a CASA-version independent solution.
- 07-Dec-2021 A missing initialization was causing magenta`UV_RESTORE` to use the slow mode on some compiler versions.
- 06-Dec-2021 Speed up (by a factor 5-10) the Natural weighting scheme when there is only 1 channel.
- 19-Nov-2021 Create the red VIEWER program, that only contains the blue`DISPLAY\` language.
- 19-Nov-2021 Expand the magenta`COMMAND ? Key` mechanism to many commands.
- 18-Nov-2021 Add the magenta`STATISTIC /UPDATE` andmagenta`FIT /JVM_FACTOR` commands

Next: IMAGER versus CASA Up: Bugs and Release Notes Previous: Known Bugs Contents Index