Tutorial - Pit Optimiser Visualisation of Pit and Period
P redefined pit-by-pit graphs or period-by-period charts simplify the configuration of the charts, reducing the amount of customisation required in Excel.
Opening Your Data File in Vulcan
Dataset for this tutorial is in the PitOptimiserData.7z folder. (click the link to download the dataset).
The Pit Optimiser tutorials use a specification file named demo.opf. This file contains a financial setup that includes three products, a mill and leach process, and five rock types. The three products are molybdenum and two distinct copper products, which represent differences due to the leach and mill process. Optimisation uses a single slope region at 37 degrees, and 11 revenue factors from 0.75 to 1.25. A basic analysis scenario has been provided.
Visualisation of Pit and Period
- Select Block > Pit Optimiser > Edit.
- Click the Open specification branch and set the following parameters:
- Select demo.opf from the Load specification file list. If you did not save the specification file in the previous tutorial, the warning regarding the assignment of default Scenario IDs will display again.
- Click OK to accept.
- Click the Analysis branch and set the following parameters:
- Clear the Open Excel on completion check box.
- Click the Periods branch and set the following parameters:
- Select default_1 from the Scenario list.
- Select Best from the Analysis type list.
- Enter period_output in the Block Model Variable Name box.
- Select Partial Benches from the Period Variable Calculation Method list.
- Click the Save & Run branch and set the following parameters:
- Clear the Optimisation check box.
- Click Run.
- Click OK to confirm that you want to overwrite the demo.opf file. The Pit Optimiser process rung in the LG OPTPIT window.
- Close the window when the process is complete.
- Click the Viewing branch and set the following parameters:
- Select the Enable Viewing check box.
- Select lg_strings_multi from the Pit/Period variable list.
- Select Accounted for in data from the Topography method list.
- In the Triangulation Colour section, select colours for the First colour and last colour.
- Enter 0.1 in the Frame rate speed box.
- Click View. The triangulations display.
- Adjust the 3D view so to view the triangulations. You can use the Next Frame, Previous Frame, Play Forward, Play Backward, and Loop buttons to view the frames.
- Enter pitopt in the File prefix field.
- Click Browse next to the Triangulation directory box.
- Create a new folder named output.tri, then select the folder and click Select folder.
- Click Output. The triangulations are generate to the output.tri folder.
- Click Cancel to exit the Pit Optimiser panel.
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