Keywords: imager

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## IMAGER for previous users of [rgb]1,0,0MAPPING

[rgb]1,0,0IMAGER offers a number of advantages against [rgb]1,0,0MAPPING : higher speed, simpler and more consistent user interface, integrated pipeline processing, and a number of improved image analysis tools. However, the principles have not changed. Most commands remain quasi identical in [rgb]1,0,0IMAGER and [rgb]1,0,0MAPPING, with basically the same control parameters.

Actions which were driven by widgets have often been replaced by simple commands (with intuitive names). A quick look at the magenta`HELP` will guide you to the commands that will do what widgets were doing before. So you can skip over the fundamentals, and focus on the new tools offered by [rgb]1,0,0IMAGER. In practice, for you, commands will make fairly reasonable choices of default parameters. Just do not forget to magenta`WRITE` your data.

In short, the biggest changes for [rgb]1,0,0MAPPING users are
- the lack of use of the magenta`GO` command, and thus of the blue`NAME` and blue`TYPE` variables
- the suppression of blue`MAP_RA` blue`MAP_DEC` blue`MAP_ANGLE` and blue`UV_SHIFT` which have been replaced by blue`MAP_CENTER`
- the replacement of all tasks by simpler, standard commands.

Changing the defaults may be needed only for practical reasons:

- Optimizing computation time. This includes adjusting the field of view (variable blue`MAP_FIELD`), resampling in velocity (command magenta`UV_RESAMPLE`) and time averaging (command magenta`UV_TIME`)
- Comparing strictly different images (on a pixel per pixel basis). Adjusting blue`MAP_SIZE` and blue`MAP_CELL` will become necessary in such a case.

The names of variables and most commands have been kept from [rgb]1,0,0MAPPING, old names appear in the magenta`HELP` whenever they have been replaced.

Subsections

- Forget magenta`INPUT` and magenta`GO` command

Next: Forget magentaINPUT and magentaGO Up: IMAGER for you... Previous: IMAGER for beginners Contents Index