Loop Structural#

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Important

Upgrading from 1.5.x to 1.6.x

Version 1.6.x of LoopStructural has been released and there are a number of changes to how the library is used. The main changes are:

  • The LavaVuModelViewer class has been removed and the model visualisation has been ported to pyvista using a LoopStructural wrapped loopstructuralvisualisation. Many of the functions have been re-named and can be combined with the pyvista.Plotter methods for advanced visualisation. pyvista does not currently allow for interactive plots while using colab notebooks, so jupyter_backend=’static’ is needed.

  • Datastructures for representing model input/output have been introduced including the LoopStructural.datatypes.StructuredGrid, LoopStructural.datatypes.ValuePoints, LoopStructural.datatypes.VectorPoints and LoopStructural.datatypes.Surface. These Datastructures are intended to improve the accessibility of the modelling and allow for easier export into other software packages. All data objects have a .save method that allows the user to save the points into various formats including json, csv, vtk and geoh5. In the future exporters for gocad and other formats will be added. All objects also have a .vtk() method to return a pyvista.PolyData object.

  • The solver options for the interpolators have been removed and only scipy.sparse.linalg.cg() and scipy.sparse.linalg.lsmr() are supported. To use an external solver the external_solver argument can be provided to the interpolator.solve method, usually passed through the model.create_and_add* methods. To specify specific arguments to the solver these can be passed through solver_kwargs dict.

  • Improvements have been made to how unconformities are handled and their interaction with faults

  • A framework for including inequalities into the interpolation has been added but there is no solver that can be used for solving this problem.

  • A convenience class LoopStructural.LoopInterpolator was added for building an implicit function without requiring the LoopStructural.GeologicalModel

Please report any bugs or issues on the github repository.

Overview#

LoopStructural is an open source 3D modelling library providing access to multiple interpolation schemes with a high level and easy to use API for creating geological models. The library has been written for the Loop platform by Lachlan Grose at Monash University.

Loop is an open source 3D probabilistic geological and geophysical modelling platform, initiated by Geoscience Australia and the OneGeology consortium. The project is funded by Australian territory, State and Federal Geological Surveys, the Australian Research Council and the MinEx Collaborative Research Centre.

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