Select the voxel file from which to extract slice(s).

Script Parameter: VOXHORIZONTALSLICE.VOXEL

Provide a prefix for the output grid(s). The output grid names are constructed using the Output file base name as a prefix followed by Start elevation/ Start offset. For instance, if the file base name is "plan", then the actual grid created at 500 m below the starting datum would be plan_-500.grd.

Script Parameter: VOXHORIZONTALSLICE.GRID

Surfaces can be created either as horizontal slices at constant vertical elevations (Default), or as slices parallel to a user specified elevation.

Script Parameter: VOXHORIZONTALSLICE.SURFACE_TYPE [0: Constant elevation, 1: Reference surface grid]

This field is only enabled when the Reference surface grid option has been selected. When enabled, this is a required field. Select an elevation grid that overlaps with the voxel and resides in the same projection system. The coverage of the extracted grids will consist of the area covered by both the grid and the voxel. No data is extracted from the voxel where the elevation grid has no values.

Script Parameter: VOXHORIZONTALSLICE.REFERENCE_SURFACE_GRID

This is a contextual entry. If Constant elevation has been selected above, the Start elevation is in the georeferenced coordinate system and indicates the datum of the first surface. If Reference surface grid has been selected above, the Start offset indicates the vertical offset from the provided surface grid. The offset assumes Z-axis up. If no elevation is specified, then elevations will be selected based on the top of the voxel or the elevation grid.

Script Parameter: VOXHORIZONTALSLICE.START_ELEV

Specify the increment in elevation when more than one grid is requested. If no elevation increment is specified, then a single grid is extracted.(See below for a full description).

Script Parameter: VOXHORIZONTALSLICE.ELEV_INC

Specify the number of grids to extract. If not specified, then a single grid is created, at the input start elevation. (See below for a full description).

Script Parameter: VOXHORIZONTALSLICE.NGRIDS

Select the cell size of the output grid(s). If left blank, the cell size will be set to the voxel horizontal cell size.

Script Parameter: VOXHORIZONTALSLICE.CELLSIZE

Select either Linear (to interpolate a value from the voxel values closest to the grid cell centre locations) or Nearest, which finds the closest location in the voxel model and uses it.

Script Parameter: VOXHORIZONTALSLICE.INTERP [L: Linear, N: Nearest]

This entry is only enabled when running the tool from the 3D menu. If this GX is launched from within the 3D viewer, then the grids are automatically displayed inside the viewer.

If this GX is launched from the 3D menu, select how to display the created grids. Select one of Current map, Display in grid windows or Do not display.

Current map: Not available if there is no current map, automatically selected otherwise. If the current map contains a 3D view, then the grids will be displayed into the 3D view of the current map. If the current map contains a 2D view, then the grids will be displayed in 2D.

Display in grid windows: All grids are opened in individual 2D views.

Do not display: If selected, the grids will be added to the project, but not displayed.

Script Parameter: VOXHORIZONTALSLICE.DISPLAY [C: Current map; D: Display in grid windows; X: Do not display]

Select the colour scheme for rendering the image of the selected grid. If you mouse over the colour scheme entry, a tooltip will display the name of the colour table in its folder. To modify the selection, click on the colour entry and then navigate through the scheme categories.

Script Parameter: VOXHORIZONTALSLICE.COLOUR_TABLE

Select a colour method. This selection is ignored if a colour file is defined as a zone (.ZON) or a transform (.ITR) file.

As last displayed: If the same grid has previously been created, its previous colour transform is used, and takes precedence.

Default: Use an equal-area histogram transform if no transform is present.

Histogram equalization: Data is binned and approximately the same number of items are assigned to each colour.

Normal distribution: A normal distribution is applied, based on the standard deviation and mean calculated from the voxel statistics.

Linear: The minimum and maximum voxel values define the endpoints.

Log-Linear: A logarithmic distribution, with adjustments for negative values.

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

Behaviour

A single grid at Z0.

If Z0 is below the voxel, then the voxel is divided into N layers, and the slices are taken at the centers of the slices (and the starting elevation is ignored).

If Z0 inside the valid range of elevations, the first grid is at Z0, and the remainder are positioned by dividing up the elevations above the start elevation into N-1 slices, and using the center elevations of the slices.

The elevations are centered on the voxel vertical data bounds.

A single grid at Z0.

Grids are produced at integer multiples of DZ for the entire vertical range of data in the voxel.

The vertical range of data is divided into N equal slices, and the centers of the slices define the grid elevations.

A single grid at the center elevation of the available data.

Only those grids with valid data are produced.