Window Array Channel

Use the Database Tools > Array Channels > Window menu option (VAWINDOW GX) to extract the sum or average of values from a window of an array channel to a new channel.

Window dialog options

Array channel to window	The array channel to window Script Parameter: VAWINDOW.VA
Output channel	The name of an existing or new output channel Script Parameter: VAWINDOW.VV
Start element (0 is first)	The first element in the window (starting from element 0) Script Parameter: VAWINDOW.START
Number of elements	The number of elements in the window Script Parameter: VAWINDOW.LENGTH
Sum or average	Choose to sum or average the elements. Script Parameter: VAWINDOW.MODE=Sum or Average

Application Notes

This dialog option is used to extract windows of data from array channels. For example, you can use it to extract radiometric windows from radiometric data.

The output window is calculated as either the simple sum or the average of the values within the array window. If any array values are marked as dummy, the resulting output will also be dummy.

If the specified output channel does not exist, it will be created using the same data type as the input array channel.