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1.0.2 (Apr 30 2023)

  • lambda properties of tensors renamed to S
  • cursor coordinates in stereonet show lin and fol

1.0.1 (Nov 22 2022)

  • density_lookup method implemented for StereoNet.grid
  • Stress tensor sigma* properties using inverted order of eigenvalues
  • render2fig method of StereoNet implemented
  • vector-like objects are not iterable, so properly render in pandas

1.0.0 (Oct 7 2022)

New major release

APSG has been significantly refactored from version 1.0 and several changes are breaking backward compatibility. The main APSG namespace provides often-used classes in lowercase names as aliases to PascalCase convention used in modules to provide a simplified interface for users. The PascalCase names of classes use longer and plain English names instead acronyms for better readability.

See documentation for further details.

0.7.3 (Oct 6 2022)

  • figure window title removed from StereoNet
  • for future only bugfixes planned, foo further development see versions >=1.0

0.7.2 (Oct 6 2022)

  • bugfix release

0.7.1 (Jul 13 2021)

  • paleomag rs3 input/output improved
  • Simple SQLAlchemy API to sdb database implemented
  • StereoNet arc method fixed
  • StereoNet polygon method added

0.7.0 (Feb 3 2021)

  • Python 2 support dropped
  • RosePlot added
  • Ortensor has from_pairs method for Lisle tensor for orthogonal data
  • StereoNet scatter method has labels kwarg to show hover annotations

0.6.3 (Dec 6 2019)

  • Python 2/3 compatibility fix

0.6.2 (Dec 6 2019)

  • few minor bugs fixed
  • Stereogrid apply_func passes Vec3 instead numpy array
  • Pair H method to get mutual rotation implemented
  • velgrad method of DefGrad accepts steps kwarg to generate list of DefGrad tensors
  • Added Tensor class to work with deformation tensors

0.6.1 (Dec 12 2018)

  • Stereogrid always use Euclidean norms as weights
  • DefGrad properties e1, e2, e3 (natural principal strains) added
  • DefGrad properties eoct, goct (octahedral strains) added
  • DefGrad from_ratios class method added
  • DefGrad properties k, d, K, D (strain symmetries and intesities) added
  • New class Ellipsoid added to work with ellipsoids
  • FabricPLot renamed to VollmerPlot for consistency
  • RamsayPlot, FlinnPlot and HsuPlot implemented
  • All fabric plots have new path method accepting list of tensors

0.6.0 (Nov 7 2018)

  • Stress always gives eigenvalues sorted
  • Stress I1, I2, I3 properties for invariants implemented
  • Stress mean_stress property implemented
  • Stress hydrostatic and deviatoric properties implemented
  • precision added to settings to control numerical comparisms
  • figsize added to settings to control figure size across APSG
  • Animation examples fixed
  • rand class method implemented for Fol, Lin, Vec3 and Pair to generate random instance
  • Group to_csv and from_csv improved
  • SDB tags method works properly for multiple tags
  • SDB can modify database metadata
  • QGIS 3 plugin ReadSDB compatibility

0.5.4 (Oct 19 2018)

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

0.5.3 (Oct 10 2018)

  • Bugfix release

0.5.2 (Oct 10 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

0.5.1 (Dec 5 2017)

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

0.5.0 (Nov 19 2017)

  • bux fix minor release

0.4.4 (Mar 25 2017)

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

0.4.3 (Mar 25 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 to get mutual rotation 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.

0.4.1-2 (Mar 4 2017)

  • bugfix

0.4.0 (Mar 4 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

0.3.7 (Jan 5 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

0.3.6 (Jan 3 2017)

  • shell script iapsg opens interactive console

0.3.5 (Nov 12 2016)

  • Simple settings interface implemented in in apsg.core.seetings dictionary. To change settings use: 
    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

0.3.4 (Jun 20 2016)

  • RTD fix

0.3.3 (Jun 4 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

0.3.2 (Feb 22 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

0.3.1 (Nov 20 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

0.3.0 (Nov 9 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

0.2.3 (Oct 21 2015)

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

0.2.2 (Apr 17 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.

0.2.1 (Dec 9 2014)

  • Quick plotting of groups fixed.

0.2.0 (Dec 9 2014)

  • new StereoNet class for Schmidt projection
  • Quick plot when data are passed as argument 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

0.1.0 (Nov 1 2014)

  • First release of APSG