Convert to Grid

On the Stratigraphic tab, in the Seam Block Model group: Click Convert to Grid to create a grid surface for each unique value in the Material field of a Seam Block Model file. Output may be any combination of Roof, Floor, Midpoint, Thickness, or user attribute field.

Seam Block Model file

Specify a Seam Block Model file as the input file. Seam block models use variable-height blocks, which are not limited to a set sub-blocking interval. Seam splits, plies and partings are easily defined.

East, North and Z fields

Specify the East, North and Z coordinate fields in the input file. The function uses these fields to define the block centres.

Material field

Double-click (F3) to select the name of the Material field. The Material field is compulsory and typically contains Seam (and Interburden) names.

The Input options on the Convert to Grid form

Exclude Waste

Waste can be excluded from the report by selecting the Exclude Waste check box (or by setting an appropriate filter).

Define waste

Define waste is a simple regular expression match for the Material field. A Regular Expression is a search string that uses special characters to match patterns of text. In this context, it is used to determine which values in the Material field represent waste. The assumption is that any non-matching value is a seam.

Although regular expressions can be both complex and powerful, a couple of simple suggestions should provide an easy way to define waste codes. The first thing to understand is that the Regular Expression must match the complete code, not just a part of it. There are 3 characters and quantifiers that will allow matching of most waste codes. They are:

Character	Description	Pattern	Possible Matches
.	Matches any single character	.B	IB or OB
*	Matches previous element zero or more times	.*IB	AT01_IB or FC22_IB
\|	Matches any element separated by pipe (\|)	OB\|.*IB	OB or AT01_IB or FC22_IB

Some examples:

Waste Codes	Patterns that match
OB, AE_IB, FJ_IB, KL_IB	OB\|AE_IB\|FJ_IB\|KL_IB
	OB\|.*_IB
	.*B

OB, PT_AE, PT_FJ, PT_KL	OB\|PT.*

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.

Output Grid Files