Initial commit.

Splitted original collection into this and https://gitlab1.ptb.de/CSchrader/ttlmk

.gitignore

+# use glob syntax.
+syntax: glob
+
+# Compiled python modules.
+*.pyc
+*~
+Thumbs.db
+
+# Setuptools distribution folder.
+*doc/build/
+/dist
+/build
+
+# Python egg metadata, regenerated from source files by setuptools.
+/*.egg-info
+/*.egg
+
+# switch to regexp syntax.
+#syntax: regexp
+#^\.pc/

README.md

+Hilfs-Module
+------------
+
+fit_common.py
+    * Zum Fitten einiger einfacher Regelgeometrien in Punktwolken. War nur mal zum Testen gedacht...
+
+lmk_picture.py moved to own package https://gitlab1.ptb.de/CSchrader/ttlmk

misc_helper/fit_common.py

+# -*- coding: utf-8 -*-
+"""
+Created on Tue Feb 24 13:04:53 2015
+
+@author: schrad05
+"""
+
+from __future__ import division 
+
+# import os
+# import sys
+# import time
+# import gzip, bz2
+
+import numpy as np
+# import ConfigParser
+
+from scipy.optimize import leastsq
+# from numpy.linalg import norm
+# from scipy import ndimage
+
+# import matplotlib.pyplot as plt
+# import matplotlib as mpl
+# mpl.rcParams['image.interpolation'] = 'none'
+
+# import enthought.mayavi.mlab as mlab
+
+# TODO: Geometrieprimitive definieren und diese zurückgeben, keine einfachen Arrays 
+# positionsabhängiger Bedeutung
+# z.,B.
+class Circle:
+    def __init__(self, x=0., y=0., r=1.):
+        self.x = x
+        self.y = y
+        self.r = r
+
+    def __array__(self):
+        return np.array([self.x, self.y, self.r])
+
+    def __repr__(self):
+        return "Circle(x={:f}, y={:f}, r={:f})".format(self.x, self.y, self.r)
+        
+class Sphere:
+    def __init__(self, *args, **kwargs):
+        print("ARGS", args)
+        self.x = args[0]
+        self.y = args[1]
+        self.z = args[2]
+        self.r = args[3]
+        
+    def __array__(self):
+        return np.array([self.x, self.y, self.z, self.r])
+
+    def __repr__(self):
+        print("X", repr(self.x))
+        print("Y", repr(self.y))
+        print("Z", repr(self.z))
+        print("R", repr(self.r))
+        return "Sphere(x={:f}, y={:f}, z={:f}, r={:f})".format(self.x, self.y, self.z, self.r)
+    
+class Fit():
+
+    def res_circle2D(self, param, x, y):
+        xm,ym,r = param
+        return np.sqrt((xm-x)**2 + (ym-y)**2) - r
+    
+    def res_sphere(self, param, x,y,z):
+        xm, ym, zm, r = param 
+        return np.sqrt((xm-x)**2 + (ym-y)**2 + (zm-z)**2 ) - r
+    
+    # evtl. kwargs für fitparameter
+    def fit_circle2D(self, x,y=None):
+        x = np.array(x)
+        if len(x.shape) == 2:
+            y = x[:,1]
+            x = x[:,0]
+        else:
+            y = np.array(y)
+        x_m = np.mean(x)
+        y_m = np.mean(y)
+        r0  = (np.max(x) - np.min(x) + np.max(y) - np.min(y))/2.0
+        fitRes = leastsq(self.res_circle2D, (x_m, y_m, r0), args=(x,y), full_output=1, )
+        return Circle(fitRes[0])
+    
+    
+    # noch nicht getestet
+    def fit_sphere(self, x,y=None, z=None):
+        x = np.array(x)
+        if len(x.shape) == 3:
+            z = x[:,2]
+            y = x[:,1]
+            x = x[:,0]
+        else:
+            y = np.array(y)
+            z = np.array(z)
+        x_m = np.mean(x)
+        y_m = np.mean(y)
+        z_m = np.mean(z)
+        r0  = ( np.max(x) - np.min(x) + 
+                np.max(y) - np.min(y) + 
+                np.max(z) - np.min(z) )/3.0
+        fitRes = leastsq(self.res_sphere, (x_m, y_m, z_m, r0), args=(x, y, z), full_output=1, )
+
+        return fitRes[0]
+

pyproject.toml

+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "misc_helper"
+version = "0.1.1"
+authors = [
+  { name="Christian Schrader", email="christian.schrader@ptb.de" },
+]
+description = "Miscellaneous Helper Modules"
+readme = "README.md"
+requires-python = ">=3.3"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: MIT License",
+]
+dependencies = [
+  "numpy",
+]
+
+[tool.setuptools]
+packages = ["misc_helper"]
+# By default, include-package-data is true in pyproject.toml, so you do
+# NOT have to specify this line.
+# include-package-data = true
+
+# changes in the package data require to delete bts256.egg-info/SOURCES.txt
+# because this caches old selections!
+# [tool.setuptools.package-data]
+# "misc_helper" = ["./foo*/*"]
+
+# [tool.setuptools.exclude-package-data]
+# "bts256" = ["secredpassword"]