Input Data

On the Home tab or the Vizex tab, in the Layer group: Select Open Layer | Grid Surface (or double-click Grid Surface in the Vizex Layer Types pane) to load and display a Micromine Grid Surface (*.GRD) file or a third-party Grid Surface File.

Specify the following parameters on the Input Data tab of the Grid Surface form:

File

Double-click (F3) to select the name of the Grid file to load. You can right-click (F4) in the File box to preview the grid in an image viewer.

Orientation

Specify the orientation of the Grid Surface (i.e. PLAN, LOOKING WEST or LOOKING NORTH). The orientation you select here will determine what View Type you select when viewing the surface with other display objects.

Section

Optionally, specify a Section value.

The Section field allows you to position the Grid Surface at a specified 3D coordinate, the axis of which is determined by which orientation you select. For example, if the orientation is LOOKING NORTH and you enter a value of 15900, you will position the surface at a Northing of 15900. The Easting and elevation coordinates will be set by the limits of the grid.

The Orientation and Section options are especially useful for positioning non-plan surfaces, such as geophysical sections, in their true 3D locations.

You can display third-party Grid file formats as images (Vizex > Layers > Image). Or you can convert them to Micromine Australia Pty Ltd Grid Surface (*.GRD) file format (Files > Import > Grid (Raster) Data).

Convert Coordinates

Select the Convert Coordinates check box to convert between geographic coordinates (latitudes and longitudes) and projected or local coordinates, as part of the import process.

Conversion

Select, or create a new, coordinate conversion form set. See: Coordinate System Conversion

Sampling method

Select a sampling method:

Method Input Cells Calculation Properties

Nearest Neighbour

1 (1 × 1)

Returns the nearest cell value
  • Fast but poor-quality interpolation.
  • Preserves the exact values of the input data, for example a geological grid where cell values represent geological units, or the exact value of the nearest sample.

Bilinear

4 (2 × 2)

Combined linear interpolations along the X and Y axes
  • For general purpose interpolation.
  • Very efficient.

Cubic

16 (4 × 4)

Cubic convolution
  • For interpolating continuous surfaces.
  • Produces a smoother result than bilinear interpolation.
  • Large input changes may cause over- or -undershoots.

Cubic Spline

 

Piecewise cubic polynomial
  • Honours the input cell values and avoids over/under shoots.

Lanczos

 

Windowed sine cardinal (Sinc) function
  • Very accurate with smooth data.
  • Better at preserving sharp edges than other methods.
  • May cause dark/light haloes along strong edges.

Forms

Click the Forms button to select and open a saved form set, or if a form set has been loaded, save the current form set.

By design, the Forms button is not available for loaded Vizex layers (i.e. when opening the form set properties of a layer in the Vizex Layer Display pane). In Vizex, the Forms button is only available for new forms opened via the Home tab or the Vizex tab, in the Layer group (or by double-clicking on a form type node in the Vizex Layer Types pane).

Save and Save As

Click the Save button to save the changes you have made to the form set. Click Save As to save your changes as a new form set. Save As will default to the first available form set number.

Reset

Click Reset to clear the form of all values and reset the form to its default state.

Reset Tab

For tabbed forms, select Reset Tab to clear the active tab of all values and reset the tab to its default state - without making any changes to other tabs in the dialog.

Undo and Redo

Click Undo (CTRL + Z) to undo recent changes in the form. After an Undo, click Redo (CTRL + Y) to restore the last change that was undone.

Collapse

Collapse (roll-up) the form to preview a chart, or preview the results of an operation in Vizex, or obtain input values from Vizex, the Property Window, the File Editor, or the Plot Editor.

OK

Finally, click OK to load the Grid Surface. The display options, adjusted Z values, and label options you have specified, will be applied.

Display

Adjust Z Values

Draping

Labels