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APSG - structural geology module for Python

Project description

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APSG defines several new python classes to easily manage, analyze and visualize orientational structural geology data.

You can see APSG in action in accompanied Jupyter notebook http://nbviewer.jupyter.org/github/ondrolexa/apsg/blob/master/apsg_tutorial.ipynb

And for fun check how simply you can animate stereonets http://nbviewer.jupyter.org/github/ondrolexa/apsg/blob/master/animation_example.ipynb

Changes

0.1 (01 Nov 2014)

  • First release of APSG

0.2 (09 Dec 2014)

  • new StereoNet class for Schmidt projection
  • Quick plot when data are passed to StereoNet class instantiation
  • mplstereonet dependency depreceated
  • new Pair and Fault classes to manipulate paired data (full support in future)
  • new uniform_lin and uniform_fol Group methods
  • abs for Group implemented to calculate euclidean norms
  • new Group method normalized
  • new Group properties and methods to calculate spherical statistics

0.2.1 (09 Dec 2014)

  • Quick plotting of groups fixed.

0.2.2 (17 Apr 2015)

  • FaultSet class added. Fault and Hoeppner methods of StereoNet implemented
  • VelGrad and DefGrad classes used for transformations added
  • G class to quickly create groups from strings added.

0.2.3 (21 Oct 2015)

  • New Docstrings format
  • StereoNet.getfols method bug fixed.
  • Shell scripts to run interactive session improved.

0.3 (09 Nov 2015)

  • Group fancy indexing implemented. Group could be indexed by sequences of indexes like list, tuple or array as well as sliced.
  • Cluster class with hierarchical clustering implemented
  • Group to_file and from_file methods implemented to store data in file
  • Group copy method for shallow copy implemented
  • StereoNet now accept Vec3 and Fault object as well for instant plotting.
  • Ortensor updated with new properties E1,E2,E3 and Vollmer(1989) indexes P,G,R and C. Bug in Woodcocks’s shape and strength values fixed.
  • uniform_lin and uniform_fol improved.
  • asvec3 method implemented for Fol and Lin
  • fol_plot property of StereoNet allows choose poles or great circles for immediate plotting
  • bootstrap method of Group provide generator of random resampling with replacements.
  • Group examples method provide few well-known datasets.
  • Matplotlib deprecation warnings are ignored by default

0.3.1 (20 Nov 2015)

  • SDB class improved. Support basic filtering including tags
  • StereoNet has close method to close figure and new method to re-initialize figure when closed in interactive mode
  • iapsg shell script added to invoke apsg ipython shell

0.3.2 (22 Feb 2016)

  • FabricPlot - triangular fabric plot added
  • .asvec3 property has .V alias
  • Resultant of Fol and Lin is calculated as vectorial in centered position
  • dv property of Fol added to return dip slip vector

0.3.3 (04 Jun 2016)

  • Added E1,E2,E3 properties and polar decomposition method to DefGrad object
  • StereoNet has vector method to mimics lower and upper hemisphere plotting of Lin and Vec3 objects as used in paleomagnetic plots
  • StereoNet could be initialized with subplots
  • rake method of Fol added to return vector defined by rake
  • Density could be initialized without data for user-defined calculations New method apply_func could be used to calculate density
  • Contour(f) methods accept Density object as argument
  • Added Group class methods to generate Spherical Fibonacci and Golden Section based uniform distributions of Vec3, Lin and Fol

0.3.4 (20 Jun 2016)

  • RTD fix

0.3.5 (12 Nov 2016)

  • Simple settings interface implemented in in apsg.core.seetings dictionary. To change: from apsg.core import settings setting[‘name’]=value
  • notation setting with values dd or rhr control how azimuth argument of Fol is represented.
  • vec2dd setting with values True or False control how Vec3 is represented.
  • Vec3 could be instantiated by one arument (vector like), 2 arguments (azimuth, inclination) or 3 arguments (azimuth, inclination, magnitude).
  • Group and FaultSet can return array or list of user-defined attributes of all elements

0.3.6 (03 Jan 2017)

  • shell script iapsg opens interactive console

0.3.7 (05 Jan 2017)

  • conda build for all platforms
  • numpy, matplotlib and other helpres imported by default
  • ortensor is normed by default
  • ortensor MADp, MADo, MAD and kind properties added

0.4 (04 Mar 2017)

  • Density class renamed to StereoGrid
  • Fault sense under rotation fixed
  • FaultSet example provided
  • Angelier-Mechler dihedra method implemented for FaultSet
  • StereoNet accepts StereoGrid and Ortensor as quick plot arguments
  • StereoNet instance has axtitle method to put text below stereonet

0.4.1-2 (04 Mar 2017)

  • bugfix

0.4.3 (25 Mar 2017)

  • Stress tensor with few basic methods implemented
  • StereoGrid keyword argument ‘weighted’ to control weighting
  • StereoNet kwargs are passed to underlying methods for immediate plots
  • StereoNet tensor method implemented (draw eigenlins or fols based on fol_plot settings)
  • Group totvar property and dot and proj methods implemented
  • Fol and Lin dot method returns absolute value of dot product
  • Vec3 H method implemented
  • StereoNet.contourf method draw contour lines as well by default. Option clines controls it.
  • centered bug fixed
  • StereoNet allows simple animations. Add animate=True kwarg to plotting method and finally call StereoNet animate method.

0.4.4 (25 Mar 2017)

  • Group method centered improved
  • Group method halfspace added to reorient all vectors towards resultant halfspace

0.5.0 (19 Nov 2017)

  • bux fix minor release

0.5.1 (05 Dec 2017)

  • Kent distribution sampling added
  • Automatic kernel density estimate for contouring
  • UserWarnings fix

0.5.2 (10 Oct 2018)

  • Fischer distribution sampling added
  • transform method has norm kwarg to normalize tranformed vectors
  • axisangle property to calculate axis and angle from rotation matrix
  • StereoNet arc method added
  • Vec3 and Group upper and flip properties implemented
  • DefGrad, VelGrad and Stress rotate method accepts also rotation matrix
  • velgrad method added to DefGrad to calculate matrix logarithm
  • StereoGrid has new methods max, min, max_at, min_at

0.5.3 (10 Oct 2018)

  • Bugfix release

0.5.4 (XX YYY 2018)

  • StereoNet has cbpad keyword for colorbar padding
  • FabricPlot bug introduced in 0.5.2 fixed.

Project details


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