Author: Thomas Ott

# QFitsView 1D plot

When a one-dimensional FITS is loaded, QFitsView displays that as a line plot. The values are displayed along the y axis, the x axis either shows consecutive numbers starting at one, or physical values if the WCS header keywords in the FITS file are existing.

The following operations are available in 1D view:

- the current x and y values are displayed in the upper right when the mouse is moved
- zooming into the plot is possible by dragging the mouse with the left button clicked
- unzooming to show the complete FITS is done using the context menu, available by right-clicking into the plot
- the plotting ranges can also be set using the entry fields in the upper toolbar
- the plotting style (either continuous line or staircase) can be set from the context menu
- line deblending can be done by pressing d-d, then g and/or l. The f key initiates the actual fitting. This is described in more detail in the fitting documentation