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SDAna In: anaps.plotAvImage()

Define a ROI

To get the appropriate pixel values for you ROI, call:

SDAna In: anaps.SelectRegion()

This will by draw the image and let you select a rectangular area of interest with the mouse. At this point, you click on two corners of the ROI. Once you are happy with your selection, it will print the numbers you need to enter in the producer file. Figure 2 will come up when you get asked if you are happy with the selection which appears on the right side of that figure. "n" means you can to click again until you are satisfied. "y" will print the ROI as it should be entered in the smd_producer file.

A new figure will also show the ROI again, this time obtained from the raw data rather than the image (a technical detail). The more striking different is that the scaling/limit are now taken from only the ROI rather than the whole image.

Find the center for the azimuthal integration

Once an average image is available, run

SDAna In: anaps.FitCircle()

And follow instructions. You first can choose to select the point along the circle with the mouse, or to pick a percentile for the pixel that should be considered to the fit.

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