Setting up Block Model Interrogations

If we have a table that has solids and volumes, but doesn't have any qualities for our material then we will want to set up Block Model Interrogations to bring the qualities from our block model.

To access Block Model Interrogations, simply right click on the table you are looking to interrogate, go to setup and then Block Model Interrogations.

In the new window right click Block Model Interrogations, select add then Block Model Interrogation and name it whatever you would like.

From here we can select the Solid Field that we want to compare to our Block model, most often this will be our imported Coal Solid.

Now head down to the Range Mappings box and click the plus icon on the right hand side to direct the interrogation to where the model sits on our computer.

This will bring up a window where you can map each field to the correct column of the block model if using a csv.

Next click on the Field Mappings tab and press the wand. This will read the block model and bring in all the different types of fields found in the file. You can choose a Value Type and a Default value for each if you would like. You can see how each value type functions at the bottom of this article.

Next head to the Table Mappings where you can hit the green plus icon to add in as many rows as you need to map. Each row will need to have the field it is being written to selected, as well as the field map and filter map.

Divide percentage values by 100 will change the base of the number if the Field we have selected to write to is a Percentage type field.
Clear selected fields will wipe any fields being written to before writing to them.
Verify solids will attempt to make sure the solids do not have any errors before running.
The density field is required to work out the field mappings if we are using the Tonnes value type and should be directed to whichever field mapping represents our density.
Once all the setting have been defined hitting calculate will write the numbers to the table. All of the setting will be remembered for the next time the tool is run.

Different types of Weighting:

Area: This will take the average number in the block model over the entire solid, not taking into account thicker parts of the solid being weighted more heavily.

Volume: This will take the average number in the block model over the entire solid, giving more weighting to areas that are thicker than areas that are thinner.

Tonnage: This will take the average number in the grid over the entire solid, giving more weighting to areas that have the highest volume multiplied by density.

Min: This will take the minimum number across the solid.

Max: This will take the maximum number across the solid.

Sum: This will sum up all the values across the solid.

Average: This will do an average of all the interrogation points across the solid.

Cumulative Volume: This will sum up all the volumes across the solid.

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