Database Drift Analyser - Block Selection

Block model selection

Use block centres

Select this check box to use the full cell evaluation method. If this check box is not selected, then the proportional cell evaluation method will be used instead.

• Full cell evaluation: Include blocks if the block centroid is in the region. The entire block will be included.
• Proportional cell evaluation: Include those blocks that touch the region, and evaluate reserves according to the proportion of the block"s volume that lies in the region. Proportional cell evaluation calculates and reports the exact proportion of a block in a solid triangulation. When selecting blocks, all blocks that touch the region are selected.