New X, Y Database

Use the IP & Resistivity > Export > New X,Y Database option (IPXY GX) to create a new XY database. Note that this dialog has two different behaviors – depending on the value of the input value "N".

Create New X,Y Database dialog options

Output database

The new database to create. The New database GX is called with this name set as the default.

Script Parameter: IPXY.NEWDB

Channels to output

Channel Selection – "All channels", "displayed channels", or "selected channels" in a list. If the channel list is selected, a dialog appears which allows the user to select specific channels. (See "Selecting Channels" below) (Default is All channels).

Script Parameter: IPXY.CHAN -- "D" : Displayed channels, "A": All channels, "S" : Select channels

Lines to output

Line Selection – "All lines", the "displayed lines" (current), or the "selected lines".

Script Parameter: IPXY.LINE: "D" : Displayed line, "A": All lines, "S" : Selected lines

Mask channel

If selected, this channel can be used to mask the output. If the value in the mask channel is a dummy "*", then the corresponding value in the output channel will not be copied to the new database (the row is removed, not just dummied itself).

Script Parameter: IPXY. MASK

N value

If specified, only those rows of data with the specified "N" value are copied. This works in parallel with the mask channel; masking is performed first. If this value is set to 0, the GX has a different behaviour; the filtered pseudo-section values are output (see "Filter Output" below). If left blank, all the data is copied (default).

Script Parameter: IPXY.N -- 0 for filter, >0 for N values, <0 or dummy to ignore.

Application Notes

This dialog is used to create a new database the X and Y channels and selected channels. If a mask channel is selected, rows where the mask channel is a dummy (*) will not be exported.

Selecting Channels

If the "Select channels" option is chosen for "Channels to output", a dialog appears with 5 spaces to select channels. If more channels are desired, press the "More" button. The X and Y channels are automatically included and need not appear in the list.

Filter Output

If an N value of 0 is selected, the behaviour of this dialog is altered. Instead of copying rows directly to the new database, the pseudo-section function is called to calculate the Fraser-Filtered values of the requested parameters. The filter and its weights are taken from the IP Setup values.

Of course, it makes no sense to filter certain channels, such as station positions, and some (X and Y) are removed from the drop-down list. It is up to the user to select reasonable channels from the remainder.