Implicit Modelling

Fast track your understanding of any structural or grade boundaries with Micromine’s Implicit Modelling module.

The Micromine Implicit Modelling module uses radial basis functions (RBFs) to model grade shells, lithology boundaries, faults or surfaces. Using 3D points, polylines, polygons or drillhole intervals as input, it generates wireframe solids representing features like lithology units or zones of a specified grade range, or wireframe surfaces such as fault planes or surface topography. These wireframes are readily displayed in Micromine’s Vizex (Visual Explorer) visualisation environment and are a valuable tool for finalising geological or grade interpretations.


Micromine Core is mandatory for all Micromine modules.

Micromine Exploration is highly recommended for pre-processing drillhole data.

Micromine Wireframing is highly recommended for modifying wireframes created from implicit models.


Key Features & Benefits Modelling Related modules Get Micromine

As-built mine working defined by a laser point cloud, surrounded by drillholes and proposed future mine workings.

Key Features

  • Grade shell modelling from drillhole data. Create one or many shells based on cut-off values
  • Lithology modelling with interactive tools to create groups of included, excluded or ignored lithology code groups. Optionally creates a point cloud in addition to the wireframe solid
  • Fault surface modelling from any combination of 3D points and strings incorporating structural (dip and dip direction) measurements
  • Surface modelling from 3D points such as airborne LiDAR
  • Attribute modelling from any 3D point cloud that contains positive and negative values
  • Sparse surface points interpolation that may be output as points, a grid surface, or as a wireframe
  • Polygon modelling from polygonal profiles such as underground mine workings or orebody interpretations
  • A down-sampling option to reduce the volume of massive data such as airborne LiDAR
  • Options for automatically closing the created wireframes, or snapping wireframes to the input data (where appropriate)

Key Benefits

  • One of the few applications to use industry-standard radial basis functions (RBFs) along with advanced techniques to optimise processing speed
  • Modelling tools that are part of Micromine, making use of features like Vizex and form sets
  • Quick prototyping and visualisation of simple or complex 3D surfaces and solids
  • Get results without spending hours or even days on a traditional interpretation and wireframing workflow
  • User-controllable resolution (smoothness) of the resulting wireframes
  • Simple bounding box control over the extents of the resulting wireframes


  • Grade Volumes creates multiple grade shells directly from drillhole data.
  • Fault modelling for quickly and accurately creating fault planes.
  • Attribute modelling output points created from another implicit model, or any 3D points with positive and negative attribute values.
  • Lithology modelling assist to create lithological solids from drillhole data.
  • Point cloud modelling create 3D surfaces from point cloud data.
  • Sparse surface points modelling create smooth surfaces from a limited number of 3D points (fewer than 3000).

An underground laser point cloud defining a newly-developed mine working, with proposed alternative headings shown as wireframes.