All the key steps for creating and validating a generic Reserves Model based on multiple block models, as well as instructions for mapping fields, adding variables and checking results, see below.
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5. Create variable called “fe” to reference all the grades within the Block Model. Use semicolon to close the formula . > double fe = context.N("Fe");
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7. To check if the statement is correct, press the Compile button.
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If you did made a mistake, the Compile Error window will pop up, showing a row and a column of an error with a short description of its type.
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9. In the list of available variables on the right you will see a new variable CustomT("CustomTextVar") in bold, map it to the Parcel field.
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11. Review grades in the Reserves Summary. You should see the same “Ore” and “Waste” parcels.
Creating more detailed on the grade binning variable
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Update the created variable by adding lines with a breakdown of parcels based on Fe content as shown below, or copy preconfigured formula from the RR. Block Model Custom Variables page.
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2. Map this new custom variable to the Parcel field.
3. Regenerate Reserves Model.
4. Review grades in the Reserves Summary. Based on populated values, you should see “hg”, “mg”, “lg1”, “lg2”, “minw” and “w” parcels added.
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3. You should see two new Custom Variables CustomT("Parcel") and CustomT("OreType"). Map in “OreType” to the Parcel field and generate new Reserves model.
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Add a Sum (Add Additive icon) field - Fines_Volume - to calculate fines volume use inline formula N("DX")*N("DY")*N("DZ")*N("fines_pct").
Add a Sum (Add Additive icon) field - Fines_Tonnes_Dry - to calculate dry tonnes of fines use inline formula N("DX")*N("DY")*N("DZ")*N("SG")*N("fines_pct").
Add four Weight Averaged fields (Add Weight Averaged icon) - Fines_Fe, Fines_Al, Fines_Si, Fines_Pct - map corresponding numerical fields to them.
Add a Sum (Add Additive icon) field - Fines_Tonnes_Wet- to calculate wet tonnes of fines use inline formula N("DX")*N("DY")*N("DZ")*N("SG")N("fines_pct")(1+N("moi")).
Repeat for Lumps.
You can use the Find and Replace functionality.
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