Select the lines to grid; available options:

• All lines: all the lines will be processed.

• Displayed line: only the currently displayed line will be gridded.

• Selected lines: all selected lines will be gridded (default option).

Each grid section name is concatenated using an optional prefix, the channel name, the line name, and the selected display gridding method.

Read about crooked section grids.

Script Parameter: GRIDCDI.LINES [ "A" : All lines, "S" : Selected lines (default), "D" : Displayed line]

Select the channel containing the data array to grid. The list is populated with the array channels only.

Script Parameter: GRIDCDI.DATA

If the depth increments are loaded onto the data array channel, this entry will be disabled. Otherwise, you can enter the depth array channel specifying the vertical location of each of the data elements to plot. The entry is populated only with channels of the same dimension as the data array.

Script Parameter: CDI.DEPTH_ARRAY_CHAN

Check this option if the values in the depth array are specified in the same direction as elevation and decrease downward.

Script Parameter: CDI.NEGATIVE_DEPTHS_DOWN [0: unchecked (default), 1: checked]

Use this channel to define topography or a reference elevation. If defined, the depth or relative elevation values are added to the values here to give the true elevation ("Z") of each data value.

Script Parameter: CDI.ELEVATION_CHAN

Specify a prefix for the output section grids. Adding a prefix to your output section grids may help you to filter (or sort) your sections. By default, this field is left blank, and no prefix is added to the output section grids.

Script Parameter: GRIDCDI.PREFIX

Use the drop-down list option "Display grid" if you want the generated grids to be displayed in the current project workspace in individual grid windows.

If the option "Do not display" is selected, the grids will be added to the current project and listed in the Project Explorer, but they will be not opened in the project workspace.

Script Parameter: GRIDCOPY.DISPLAY_OPTION ["Do not display" (default), "Display grid"]

Select this button to reveal the parameters under the Display and Grid sections.

Display

Specify the colour zoning method for rendering colour distributions. Select one of the options below:

• As last displayed: the grid is displayed in its last viewed state: its previous colour transform is used, and the currently selected colour scheme will be ignored.

• Default: the default colour distribution method is used.

• Histogram equalization: your data values are evaluated, and the zones are statistically determined, such that data is equally divided among the histogram bins.
• Normal distribution: your data is assumed to be normally distributed, and the zones are determined based on the standard distribution for a standard bell curve.
• Linear: the range of data values are divided linearly into even increments.
• Log-Linear: the zone values are updated based on the log distribution of the data, and the data is displayed using the log-linear colour distribution.

Script Parameter: GRIDCDI.METHOD [0 : Default, 1: Linear, 2 : Normal distribution, 3 : Histogram equalization, 5 : Log-Linear, 6 : As last displayed]

Select the colours for rendering the image of the grids. To modify the selection, click on the Colours scheme, and the Select Colour Scheme dialog will appear. Use this dialog to navigate through the scheme categories and to select a colour scheme to best display your grid(s).

Script Parameter: GRIDCDI.TABLE

Specify the brightness of the grid image. The normal brightness is defined at 0. You can change the Brightness value from -100 (black) to 100 (white) using either the slider bar or by entering an exact value.

Script Parameter: GRIDCDI.BRIGHTNESS

Check the Reverse colour distribution option to reverse the distribution of the selected colour scheme.

For example, the colour scheme used for displaying resistivity data is the inverse of the scheme used for conductivity data. By enabling you to reverse the colour scheme on the fly, the same table can be used to display both.

Script Parameter: GRIDCDI.REVERSED [0: unchecked (default), 1: checked]

Select the Pixel view option for display purposes. By default, the grid is first interpolated to a smooth image at the screen resolution. If you prefer to honour the grid resolution, the image will appear pixelated, and the colour will change at the actual grid interval rather than the screen resolution. Formerly, this functionality was found under the image filters as " No smoothing (GRD)". Check this box to forgo the smoothing.

Script Parameter: GRIDCDI.PIXEL [0: unchecked (default), 1: checked]

Specify a single vertical exaggeration for displaying all the output section grids.

Press the calculator button (), located next to this field, to have the vertical exaggeration calculated. (It will be based on the longest section grid; see the Application Notes below for further details.)

Script Parameter: GRIDCDI.VERTICAL_EXAGGERATION

Grid

Select a display method from the drop-down list. The selection includes three gridding methods: Minimum Curvature Gridding, Inverse Distance Weighting, and Direct Gridding.

In addition, the pixel plot produces a grid-like output but draws a rectangle around each data point, and so, unlike gridding, preserves both the original location and data values.

Script Parameter: GRIDCDI.DISPLAY_METHOD

Depending on the Display method selected, it is possible to set:

• both the vertical and horizontal cell size for Inverse Distance Weighted Gridding and Direct Gridding.

• just the horizontal cell size: Minimum Curvature Gridding uses square grid cells.

• neither: pixel plot cell sizes vary in both dimensions depending on the data separations.

Script Parameter: GRIDCDI.CELLSIZE_X

Script Parameter: GRIDCDI.CELLSIZE_Z

Select the Advanced Gridding Options button to modify the parameters of the selected gridding method. For more information on the contextual parameters, click the Help button on the Advanced Gridding Options dialog.