XMM-Newton Science Analysis System


xmmselect (xmmselect-2.67) [xmmsas_20230412_1735-21.0.0]

Others - 1D regions from dsplot

dsplot supports the definition of one or multiple regions on displayed data plots (please consult the respective documentation if you are not familiar with this feature). Region specifications can be propagated to xmmselect by pushing a button in the main window. xmmselect shall read the regions from dsplot and translate this into a corresponding boolean selection expression which will then be handled in the same manner as described above for 2D regions. Please note: The Grace region marker types “Above”/“Below” line do not translate into expressions which select events that constitute the areas above/below the marker line. The section between the two little arrows on the marker rather define an interval on the abscissa. Also, the region types “Inside Polygon”/“Outside Polygon” can not be converted into a one-dimensional selection expression. Attempts to do so will result in a corresponding error condition.