Mean XY Profiles Toolbox

This window displays the mean X and Y profiles of the image data bounded by the rectangle that you have drawn on the image. It also displays the value and position of the peak found in the profiles and the limits of the rectangle drawn over the main image, as well as providing an interactive readout of the coordinate and data value in the profile.

The peak lines can be displayed in the graphs and as lines in the main image. These are enabled by selecting the Display peak lines item in the Options menu.

Other options include the ability to stop the profiles from being constantly updated when you move the rectangle, which is the continuous updates item (when this is switched off the profiles are only updated when you release the rectangle) and the ability to change the amount of display surface used for the two profiles. The later being done by selecting the little square on the line between the profiles and dragging it to a new position.

The Print... option will produce a dialog which allows you to print a two page document to either a file or the printer.

The Fix data range: button fixes the data range to that currently displayed, so you can inter-compare regions more easily. To go back to auto-ranging just untick this and move the rectangle.

There are various colour and line thickness items in the Options menu.

If you want to have more than one set of profiles choose the New window item in the File menu.

UKIRT options

When GAIA is started using the -ukirt_xy command-line option, this modifies the behaviour of this toolbox. The most significant changes are that the peak lines are displayed by default and when you display a new image the toolbox remains open and profiles of the new image are displayed (at the same image coordinates as before). Additional controls are also displayed for saving the positions of the rectangle and the peaks, as well as adding a comment to a log file.

When a realtime event is received the peak position of the Y profile is set and a single row of values is extracted and displayed as the X profile. The previous profiles are also shown for comparison. When this happens the X profile title is changed to X Profile at Row:.