Optimise

On the Block Model tab, in the Reblock Model group: Click Optimise to reduce the number of blocks or records in an existing block model file. The sub-blocks within each parent cell will be combined to reduce the number of records in the block model file.

Notes

  • During the optimisation process, numeric values in the output file are re-calculated using a volume weighted average and character fields are assigned a value which is the most commonly occurring (or the last encountered) value for the sub-blocks being combined into larger cells.
  • Blocks will only be optimised if the key values match for all of the blocks.
  • The optimisation process cannot produce irregular (L-shaped or T-shaped) blocks.
  • If the input model does not have sub-blocks, then the output model will be exactly the same as the input model.

File

Specify a block model file as the input file.

Easting, Northing and Z fields

Specify Easting, Northing and Z coordinate fields in the input file.

Density field and Default Density

Optionally specify an Density field and a default value.

Numeric Exceptions

(Optionally) Use the Numeric Exceptions group to control the way that non-numeric values are handled. Non-numeric values include characters, blanks, and values preceded by a less than sign (<).

Key Fields

Specify the key fields in the input file.

Key fields in the input file are used to determine which sub-blocks will be optimised, given that they come from the same parent cell. Only those sub-blocks which belong to the same parent cell and which share the same key field values can be optimised.

A key field might identify which blocks sit within the same wireframe, or which blocks are situated above or below a DTM surface.

Output file

Double-click (or click on the Select icon) to select the name of the output file.

Forms

Click the Forms button to select and open a saved form set, or if a form set has been loaded, save the current form set.

Run

Click the Run button to run the Optimise process using the parameters you have defined.