Upper | Lower Bounds

Use the options Constraints > Add Constraint > Upper | Lower Bounds or Upper | Lower Bounds > Modify to set the practical limits of the fitted voxel element values.

Modify Upper | Lower Constraint dialog box options


Constraint type	The default is to not limit the range within which the values of the voxel elements vary and to allow the inversion to best fit the observed field. This option is identified by selecting None. You may limit the upper \| lower range within which the values of the voxel elements are changing by specifying the limiting Constant. Alternatively, the limiting values may be defined for each voxel element through a supplied Voxel or Vector voxel if the model type is MVI .
Filename	If the Voxel or Vector voxel option has been chosen, you are prompted to provide the file that defines the upper \| lower bounds. This voxel model is re-gridded to the mesh interval and extrapolated to the extents of the padded mesh.

Application Notes

An upper | lower bound voxel cannot have dummy elements within the model volume. If the input upper | lower bound voxel does not extend over the entire model, it will be linearly interpolated to cover the entire model. Normally, you will produce a bounding voxel either from a previously modelled voxel or using a lithological model. The two bounds can be used independently. To produce them, you can use the constraint builder Constraints > Create Constraints > Upper/Lower Bound Model... or alternatively use the voxel math tool.

Once the bounding voxel is ready, select it under the Constraints item of the Tree Viewer and run the inversion to obtain the voxel model solution.

Access Seequent Online Learning and select the VOXI guided paths to learn more about effective workflows and key concepts.