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Alignment tool components

Main control window

Main control window has a few panels to interact with this application;

• file name for geometry parameters,
• file name for ndarray with image,
• select geometry object component which needs to be aligned (translated and rotated),
• select the parameter which is going to be changed,
• set the step value for parameter variation,
• change the parameter clicking on "+" or "-" buttons,
• save the modified geometry in the file,
• messaging panel.

Image viewer

Image viewer shows detector image reconstructed from the file with ndarray using current geometry parameters. It has a few convenience features:

• zoom-in - click on left mouse button, hold it and drag in order to select the rectangular portion of the image to zoom-in.
• zoom-out - click on middle mouse button in order to zoom-out image to its original size.
• Add circle  button adds circles with random radius to the image. All circles have common center. Click on middle mouse button around circle deletes circle
• The center position and circle radius can be changed by click and drag left/right mouse button. 
• Buttons Colors, Spectrum, and r-Histo serve to open/close satellite windows described below.

Spectral histogram

Spectral histogram shows current (zoomed) image intensity distribution in ADU units and its association with colors. It has a few interactive features:

• left/right mouse button click selects the minimal/maximal value to re-generate the image colors and spectrum itself.
• middle mouse button click reset the original scale.
• spectrum is re-generated in case if image is updated or zoom rect is changing.

Radial histogram

Radial histogram shows angular-integrated per-pixel-normalized intensity distribution in radial direction co current (zoomed) image and center position. This histogram is updated when image is changed, zoomed, or center position is changed.

Color table selection widget

Color table selection widget allows to change the color table for image. Two Hue angles set the limits for color table. These parameters can be controlled by the mouse or edit in two fields. Apply button sends a signal to update color table on image and spectrum.

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