Quasars · markotoplak · Aug 23, 2021 · Aug 23, 2021 · Sep 28, 2021 · Sep 28, 2021
diff --git a/MANIFEST.in b/MANIFEST.in
@@ -7,6 +7,7 @@ recursive-include orangecontrib/spectroscopy/datasets emsc/*
 recursive-include orangecontrib/spectroscopy/datasets NeaReaderGSF_test/*
 recursive-include orangecontrib/spectroscopy/datasets renishaw_test_files/*
 recursive-include orangecontrib/spectroscopy/datasets photothermal/*
+recursive-include orangecontrib/spectroscopy/datasets polar/*
 
 global-exclude __pycache__
 

diff --git a/doc/index.rst b/doc/index.rst
@@ -36,6 +36,7 @@ Widgets
    widgets/pls
    widgets/peakfit
    widgets/snr
+   widgets/polar
 
 Indices and tables
 ------------------

diff --git a/doc/widgets.json b/doc/widgets.json
@@ -128,7 +128,14 @@
     "icon": "../orangecontrib/spectroscopy/widgets/icons/stackalign.svg",
     "background": "light-blue",
     "keywords": []
+   },
+   {
+    "text": "4+ Angle Polarisation",
+    "doc": "widgets/polar.md",
+    "icon": "../orangecontrib/spectroscopy/widgets/icons/unknown.svg",
+    "background": "light-blue",
+    "keywords": []
    }
   ]
  ]
-]
+]
diff --git a/doc/widgets/images/Polar-Example1.PNG b/doc/widgets/images/Polar-Example1.PNG
diff --git a/doc/widgets/images/Polar-Example2.PNG b/doc/widgets/images/Polar-Example2.PNG
diff --git a/doc/widgets/images/Polar-stamped.png b/doc/widgets/images/Polar-stamped.png
diff --git a/doc/widgets/polar.md b/doc/widgets/polar.md
@@ -0,0 +1,38 @@
+4+ Angle Polarisation
+============
+
+Calculates vibrational mode orientation from polarised datasets
+
+**Inputs**
+
+- Data: input dataset(s)
+
+**Outputs**
+
+- Polar Data: dataset with selected feature(s) orientation information
+- Curve Fit Model Data: dataset with the optimal parameters of the curve fit model
+
+The **4+ Angle Polarisation** widget allows you to calculate orientation information of selected features using polarised spectroscopy data collected at 4 or more polarisation angles. The implemented algorithm is the same as that outlined by Hikima et. al. (2013)<sup>1</sup>
+
+![](images/Polar-stamped.png)
+
+1. Inputs: Define the polarisation angles of the input dataset. Data can be passed to widget with two methods:
+    - *Multifile Input*: A single input with data from all polarisation angles in a single dataset. (Each polarisation angle must be separated with a categorical variable).
+    - *Multiple Inputs*: 1 input per polarisation angle.
+2. Features: Select the features to calculate the orientation of.
+3. Data XY Selection: Define the attributes for the x and y axes for 2D datasets.
+4. Alpha value: The value (α) to use when calculating Herman's orientation function .
+5. Invert Angles: Invert the calculated Azimuth Angles about the 0 degree axis (i.e. so that 90 degrees is output as -90 degrees).
+
+Input Examples
+-------
+MultiFile Input
+
+![](images/Polar-Example1.PNG)
+
+Multiple Inputs
+
+![](images/Polar-Example2.PNG)
+
+
+1. Hikima, Y.;  Morikawa, J.; Hashimoto, T., Wavenumber Dependence of FT-IR Image of Molecular Orientation in Banded Spherulites of Poly(3-hydroxybutyrate) and Poly(L-lactic acid). Macromolecules 2013, 46, 1582-1590.
diff --git a/orangecontrib/spectroscopy/datasets/polar/4-angle-ftir_multifile.tab b/orangecontrib/spectroscopy/datasets/polar/4-angle-ftir_multifile.tab
diff --git a/orangecontrib/spectroscopy/datasets/polar/4-angle-ftir_multifile_model-results.tab b/orangecontrib/spectroscopy/datasets/polar/4-angle-ftir_multifile_model-results.tab
diff --git a/orangecontrib/spectroscopy/datasets/polar/4-angle-ftir_multifile_polar-results.tab b/orangecontrib/spectroscopy/datasets/polar/4-angle-ftir_multifile_polar-results.tab
diff --git a/orangecontrib/spectroscopy/datasets/polar/4-angle-ftir_multiin1.tab b/orangecontrib/spectroscopy/datasets/polar/4-angle-ftir_multiin1.tab
@@ -0,0 +1,7 @@
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