SC. Block Model

The Block Model step allows users to load in block models which can then be used for reporting purposes. This process is exactly the same as the Block Model step in Rapid Reserver.

Overview

Block Model Import instructions see here.

A Reserve Model is a collection of block models. Each project loads a single .resmodel file at a time.

Button	Description
	Creates a new Reserves Model (resmodel)
	Opens an existing Reserves Model
	Edit the currently loaded Reserve Model
	Removes the currently loaded Reserve Model
	Export the currently loaded Reserve Model to CSV

Creating Reserves Model

To create a new Reserve Model, press the New button, , which will open the Reserve Model Generator.

If the name of a block model appears red, it means the absolute path to the file can’t be found. The path to the blockmodel must be relinked in order to use it.

Loading Block Models

Located at the top left-hand side of the Reserve Generator is the “Block Model” panel. Here, block models can be introduced to the model and as well as removed. The process of loading in a block model as a CSV is outlined below.

Press the blue plus button > select “CSV File” option > import “pit1a.csv” file.
Set the green Header Line to match the header text.
Set the yellow Data Offset to match the first row of data.
Press OK to finish.

When importing Block Model CSV, you’ll see a preview of the first 100 rows of this CSV. It's a good time-saving feature, as your site Block models CSVs can be of a very large size and take a long time to open.

Reserve Model Fields

When the block model is loaded, its header fields are listed in the Variables panel on the right-hand side.

Drag and drop the variables to the appropriate field (or double click to map to the selected field).
Numeric fields use the N(“field”) syntax, and text fields use the T(“field”) syntax.

Reserve fields are the components that provide structure for the Reserve model. There are three types of fields that can be created, Sum, Weighted and Class. Sum Fields , Weighted fields , and Class Fields can be created by clicking the relevant icon in the toolbar. When a new field is created, it is expected that a block model variable will be mapped into it; however, it is possible to leave a field unmapped.

The table below provides a brief description of each field and how they behave when aggregated.

Field Type	Description
Sum	When aggregating multiple block model cells, the value of these fields will be summed together. Sum fields include quantity fields such as volume, tonnes and gold ounces.
Weighted	When aggregating multiple block model cells, the value of these fields will be weight averaged by there parent Sum field. Weighted fields need to be nested under a Sum field.
Class	Creates subtotals of a sum field, such as Indicated / Inferred / Measured. When aggregating multiple block model cells, these fields behave like Sum fields.

Block Model Formulas and Logical Operators

There are a number of expressions available to use in the Reserve Model Generator.

Block Model Formulas

`A+B`	Add A and B
`A-B`	Subtract B from A
`A*B`	Multiply A and B
`A/B`	Divide A by B
`A.ToLower()`	Convert all upper case text (HG, Hg, hg) into lower case (hg)
`Math.Min(A,B)`	Return the minimum of A and B
`Math.Max(A,B)`	Return the maximum of A and B
`N("density") <= 0 ? 0 : N("volume")`	If density is less than or equal to zero, return zero volume, else return the volume field
`A.Substring(0,Math.Min(3,A.Length))`	Return the first three letters of A
`( RowT("material")=="waste1" \|\| RowT("material")=="waste2" ) ? "waste" : RowT("material")`	If material is waste1 or waste2, then return "waste", else return the "material"

Logical Operators

And	&&	If A is "true" and B is "true" and C is "true", then return "true", else return "false"
Or	\|\|	If A is "true" or B is "true" or C is "true", then return "true", else return "false"
Equal to	==	If A is equal to B, return "true", else return "false"
Not equal to	!=	If A is not equal to B, return "true", else return "false"
Greater than	>	If A is greater than B, return "true", else return "false"
Greater than or equal to	>=	If A is greater than or equal to B, return "true", else return "false"
Less than	<	If A is less than B, return "true", else return "false"
Less than or equal to	<=	If A is less than or equal to B, return "true", else return "false"

Custom Variables

If required variable is not available, you must create/edit it in the Script Editor window, which can be accessed via the Custom Variables button.

Press the Custom Variables button.
In the Script Editor window, customize the formula code.
You can copy sample scripts from the RR. Block Model Custom Variables section and paste them into the Editor window.
Change the required values, such as the parcel and thresholds.
Verify that the code is correct by pressing the Compile button.
If there are no errors, click OK.
The new custom variable will appear in the Variables list on the right in bold. Drag and drop it to map it to the applicable field.

Generating the Reserve Model

If the Errors panel is blank, and once all fields are mapped, press Generate to build the reserve model.

Once the reserve model file has been generated, in the Reserves Summary panel you will see a block model summary for each loaded block model.

Use the Min/Max toggle to inspect the data for missing or rubbish values.
Check the material types, tonnes and grades for ballpark accuracy.

Once you are satisfied, press the blue play button to proceed to the next step.