We’ve rolled out a number of improvements to volume calculations to help produce more interpretable results.
The volume compare tool now shows the direction of the comparison, between past (left) and future (right) volumes.
Comparing a dataset to a design surface
Cut and Fill values indicate how much cut or fill are required to reach the design surface from the currently selected dataset surface.
Comparing a new dataset to an old dataset
When comparing a current dataset (15 June 2017) to a previous dataset (August 2016), the Fill value is the volume that has been added to the selected region and the Cut value is the volume that has been removed from the selected region. If the amount of material in the region has increased, the Net volume is shown as positive.
In the example below, volume has been added to the stockpile. That is, it has been "Filled" and the Net volume is shown as a positive value.
You can also use the cross section chart to see more information about the difference in fill.
Comparing an old and new dataset
When comparing an old dataset to a new dataset, the Cut, Net and Fill values will be positive. Cut is the value removed from the old dataset to reach the new dataset, and Fill is the value added since the old dataset to reach the new dataset.
Dataset vs reference level (or dataset vs smart volume)
The Net volume shows the amount of change required to reach a reference level or smart volume level below the current surface of the Site.
In the first example below, the Site requires 448 cubic metres less material to reach the reference level, so Net is a negative value, -448 cubic metres.
In the second example below, the Site requires 386 cubic metres less material to reach the reference level, so Net is a negative value, -386 cubic metres.