Release of 2016-09-10 :

Bug Fix: Correction of home directory path by default (for txt file selection widget) on "Save" and "Load Points" functions not handled previpusly for Window version. Modification: For "Point tab" changes for allowing more complex multi objects selections, same improvements ongoing for other tabs for next release. Addition: into "Circle" TAB : Arc=(3 Points): Create one Arc depending on 3 points. - First select 3 Points - Then Click on the button into "Wire 1/3" TAB : Bezier Cubic=(4 Points): Create a Wire (Bezier Cubic) from 4 selected points. - First 4 Points - Then push this button into "Image" TAB (new tab): Copy and Scale Image(s) : Scale an image along desired direction(s) (make a copy first of the original Image). - First define the direction(s) on the right combo (default is XY): if X is selected then only X direction will be scaled if XY is selected then the scale will be squared in X and Y directions together - Select one or several Images (in combo view) - Select one Line (or 2 Points) (close to the Image) you want to define new dimension. (better to select a Line strictly in X direction if you want to enlarge/squize the Image in X direction) - Then give the target dimension of the Line (on the last right LineEdit).
2016-09-10 21:17:56 +02:00 · 2016-09-10 21:17:56 +02:00 · 414bd24e9c
commit 414bd24e9c
parent 90094dc57e
20 changed files with 11604 additions and 5088 deletions
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+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="7.9999996"
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+     inkscape:cy="35.35504"
+     inkscape:current-layer="layer1"
+     showgrid="true"
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+     inkscape:window-height="702"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata2990">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     id="layer1"
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+    <path
+       transform="matrix(2.0220589,0,0,2.069447,29.845588,-11.47731)"
+       sodipodi:type="arc"
+       style="fill:none;stroke:#000000;stroke-width:2;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
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+       style="fill:none;stroke:#000000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"
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+    </g>
+    <g
+       transform="translate(73.750003,19.75)"
+       id="g6359-8">
+      <ellipse
+         ry="8.4786825"
+         rx="8.2282524"
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+         cx="-17.375"
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+         id="path3696-7-2-5" />
+      <ellipse
+         ry="2.1190491"
+         rx="2.9712813"
+         cy="-14.946188"
+         cx="32.994545"
+         transform="matrix(-0.81548777,0.57877431,-0.53658468,-0.84384648,0,0)"
+         id="path3189-2-1-17-9"
+         style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:54.21519089px;font-family:Arial;-inkscape-font-specification:Arial;display:inline;overflow:visible;visibility:visible;fill:url(#radialGradient3663-5-7-6);fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:2.19132471;stroke-linecap:square;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;enable-background:accumulate" />
+    </g>
+  </g>
+</svg>
--- a/WorkFeature/Ressources/Parametric2D.dat
+++ b/WorkFeature/Ressources/Parametric2D.dat
@ -21,3 +21,4 @@ Name, a (t), b (a,t), X (a,b,t), Y(a,b,t), Polar, tmin, tmax, tstep
 ['Witch of Agnesi', '100    # Radius', 'a', 'a*tan(t)', 'b*cos(t)*cos(t)', '-pi/2.5+0.01', 'pi/2.5-0.01', '0.01', '0']
 ['Kappa', '10    # Radius', 'a', 'a*tan(t)', 't', '0', '2*pi', '0.01', '1']
 ['Trefle de Habenicht', '3', 'a', '1+cos(a*t)+(sin(a*t)*sin(a*t))', 't', '0', '2*pi', '0.01', '1']
+['Hypotrochoid', '4.5', 'a/1.5', 'a*((a/b -1)*cos(t) + (1/(a/b -1))*cos((a/b -1)*t))', 'a*((a/b -1)*sin(t) - (1/(a/b -1))*sin((a/b -1)*t))', '0', '4*pi', '0.1', '0']
--- a/WorkFeature/Ressources/Parametric3D.dat
+++ b/WorkFeature/Ressources/Parametric3D.dat
@ -18,3 +18,5 @@ Name, a (t), b (a,t),c (a,b,t), X (a,b,c,t), Y (a,b,c,t), Z (a,b,c,t), tmin, tma
 ['3D Lissajous', '10  ', '10', '0', 'a*cos(3*t)', 'a*sin(2*t)', 'b*sin(7*t)', '0.0', '2*pi', '0.01']
 ['Trefoil knot', '10', '0', '1  #-1 senestre', 'a*(cos(t)+2*cos(2*t))', 'a*(sin(t)-2*sin(2*t))', 'a*2*c*sin(3*t)', '0.0', '2*pi', '0.01']
 ['Nfoil knot', '10', '10 #number of foils', '1  #-1 senestre', 'a*(cos(t)+2*cos((b-1)*t))', 'a*(sin(t)-2*sin((b-1)*t))', 'a*2*c*sin(b*t)', '0.0', '2*pi', '0.01']
+['Hypotrochoid-3', '4.5', 'a/1.5', '1', 'a*((a/b -1)*cos(t) + (c/(a/b -1))*cos((a/b -1)*t))', 'a*((a/b -1)*sin(t) - (c/(a/b -1))*sin((a/b -1)*t))', '0.5*t', '0.0', '10*4*pi', '0.1']
+['Helix on Circle', '30', '10', '0.05', '(a+b*cos(t))*cos(c*t)', '(a+b*cos(t))*sin(c*t)', 'b*sin(t)', '0.0', '24*2*pi', '0.1']
--- a/WorkFeature/Sweep/sweep.py
+++ b/WorkFeature/Sweep/sweep.py
@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import division
+
+
+class Sweep():
+    def __init__(self, obj, profile, path):
+        """ Sweep: represents an extrusion of a profile along a path.
+        """
+        obj.addProperty("App::PropertyString", "type", "Sweep", "type of the object").type = "sweep"
+        obj.addProperty("App::PropertyLink","profile","Sweep","wire/sketch profile of the sweep").profile = profile
+    
+    def execute(self, fp):
+        """ Print a short message when doing a recomputation, this method is mandatory.
+        """
+        FreeCAD.Console.PrintMessage("Recompute Python Sweep object\n")
--- a/WorkFeature/Ui/WFGui_2015.py
+++ b/WorkFeature/Ui/WFGui_2015.py
--- a/WorkFeature/Ui/WFGui_2015.ui
+++ b/WorkFeature/Ui/WFGui_2015.ui
--- a/WorkFeature/Utils/WF_Utils.py
+++ b/WorkFeature/Utils/WF_Utils.py
@ -8,6 +8,8 @@ try:
    _fromUtf8 = QtCore.QString.fromUtf8
 except AttributeError:
    _fromUtf8 = lambda s: s
+    
+import FreeCAD as App


 ###############################################################################
@ -154,7 +156,7 @@ def read_text(filename):
            print "\nERROR : " + str(filename) + " not a valid file !"                  
        return None

-              
+
 ###############################################################################                
 # Classes
 class DefineAndConnectEvents():
--- a/WorkFeature/Utils/WF_curve.py
+++ b/WorkFeature/Utils/WF_curve.py
@ -0,0 +1,323 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Tue Mar  1 06:59:10 2016
+
+@author: laurent
+"""
+from __future__ import division
+from math import factorial
+
+
+# Pascal's triangle 
+p_t = [      [1],           # n=0
+            [1,1],          # n=1
+           [1,2,1],         # n=2
+          [1,3,3,1],        # n=3
+         [1,4,6,4,1],       # n=4
+        [1,5,10,10,5,1],    # n=5
+       [1,6,15,20,15,6,1]]  # n=6
+
+#==============================================================================
+# binomial(n,k):
+#   while(n >= lut.length):
+#     s = lut.length
+#     nextRow = new array(size=s+1)
+#     nextRow[0] = 1
+#     for(i=1, prev=s-1; i&ltprev; i++):
+#       nextRow[i] = lut[prev][i-1] + lut[prev][i]
+#     nextRow[s] = 1
+#     lut.add(nextRow)
+#   return lut[n][k]
+#==============================================================================
+def binomial(n, i):
+    """ return binomial terms from Pascal triangle from predefined list or
+    calculate the terms if not already in the list.
+    """
+    global p_t
+    m_l = len(p_t)
+    while n >= m_l:
+        m_next_row = []
+        m_next_row.append(1)
+        for m_i in range(1,m_l):
+            m_next_row.append(p_t[m_l-1][m_i-1]+p_t[m_l-1][m_i])
+        m_next_row.append(1)
+        # print m_next_row
+        p_t.append(m_next_row)
+        m_l = len(p_t)
+        
+    return p_t[n][i]
+    
+    
+def binomial_term(n, i):
+    """ binomial coefficient = n! / (i!(n - i)!)
+    """
+    return factorial(n) / (factorial(i) * factorial(n - i))
+
+
+#==============================================================================
+# function Bezier(n,t):
+#   sum = 0
+#   for(k=0; k<n; k++):
+#     sum += n!/(k!*(n-k)!) * (1-t)^(n-k) * t^(k)
+#   return sum
+#==============================================================================
+def bezier_base(n, t):
+    """ Basis Bezier function.
+    """    
+    m_sum = 0.
+    m_C = binomial_term
+    for i in range(n):
+        m_sum += m_C(n, i) * (1 - t)**(n - i) * t**i
+    return m_sum
+    
+    
+#==============================================================================
+# function Bezier(2,t):
+#   t2 = t * t
+#   mt = 1-t
+#   mt2 = mt * mt
+#   return mt2 + 2*mt*t + t2
+#==============================================================================
+def bezier_quadratic_terms(t):
+    """ Simplified Bezier quadratic curve.
+    Return 3 terms in list ()
+    """    
+    m_terms = list()
+    # n=2 i=0
+    # m_C(n, i) * (1 - t)**(n - i) * t**i
+    # m_C(2, 0) * (1 - t)**(2 - 0) * t**0
+    # 1 * (1 - t)*(1 - t) * 1
+    m_terms.append((1 - t)*(1 - t))
+    # n=2 i=1
+    # m_C(n, i) * (1 - t)**(n - i) * t**i    
+    # m_C(2, 1) * (1 - t)**(2 - 1) * t**1
+    # 2 * (1 - t) * t
+    m_terms.append(2 * (1 - t) * t)
+    
+    m_terms.append(t*t)
+    return m_terms
+ 
+ 
+#==============================================================================
+# function Bezier(3,t):
+#   t2 = t * t
+#   t3 = t2 * t
+#   mt = 1-t
+#   mt2 = mt * mt
+#   mt3 = mt2 * mt
+#   return mt3 + 3*mt2*t + 3*mt*t2 + t3   
+#==============================================================================
+def bezier_cubic_terms(t):
+    """ Simplified Bezier cubic curve.
+    Return 4 terms in list ()
+    """ 
+    m_terms = list()
+    # n=3 i=0
+    # m_C(n, i) * (1 - t)**(n - i) * t**i
+    # m_C(3, 0) * (1 - t)**(3 - 0) * t**0
+    # (1 - t)*(1 - t)*(1 - t)
+    m_terms.append((1 - t)*(1 - t)*(1 - t))
+    # n=3 i=1
+    # m_C(n, i) * (1 - t)**(n - i) * t**i
+    # m_C(3, 1) * (1 - t)**(3 - 1) * t**1
+    # 3 * (1 - t)*(1 - t) * t
+    m_terms.append(3 * (1 - t)*(1 - t) * t)
+    # n=3 i=2
+    # m_C(n, i) * (1 - t)**(n - i) * t**i
+    # m_C(3, 2) * (1 - t)**(3 - 2) * t**2
+    # 3 * (1 - t) * t * t
+    m_terms.append(3 * (1 - t) * t * t)
+    
+    m_terms.append(t * t * t) 
+    return m_terms
+
+def bezier_terms(n, t):
+    """ Bezier curve.
+    Return n+1 terms in list ()
+    """
+    m_terms = list()
+    m_C = binomial_term
+    for i in range(n):
+        m_terms.append( m_C(n, i) * (1 - t)**(n - i) * t**i )
+    m_terms.append(t ** n) 
+    return m_terms
+
+#==============================================================================
+# function Bezier(n,t,w[]):
+#   sum = 0
+#   for(k=0; k<n; k++):
+#     sum += w[k] * binomial(n,k) * (1-t)^(n-k) * t^(k)
+#   return sum
+#==============================================================================
+def bezier_curve(n, t, weigths):
+    """ Basis Bezier function.
+    """    
+    m_sum = 0.
+    m_C = binomial_term
+
+    for i,w in zip(range(n+1),weigths):
+        m_sum += m_C(n, i) * (1 - t)**(n - i) * t**i * w
+    return m_sum
+    
+    
+#==============================================================================
+# function Bezier(2,t,w[]):
+#   t2 = t * t
+#   mt = 1-t
+#   mt2 = mt * mt
+#   return w[0]*mt2 + w[1]*2*mt*t + w[2]*t2
+#==============================================================================
+def bezier_quadratic_curve(t, weigths):
+    if len(weigths) != 3:
+        return None
+    t2 = t * t
+    mt = 1-t
+    mt2 = mt * mt
+    return weigths[0]*mt2 + weigths[1]*2*mt*t + weigths[2]*t2
+
+
+#==============================================================================
+# function Bezier(3,t,w[]):
+#   t2 = t * t
+#   t3 = t2 * t
+#   mt = 1-t
+#   mt2 = mt * mt
+#   mt3 = mt2 * mt
+#   return w[0]*mt3 + 3*w[1]*mt2*t + 3*w[2]*mt*t2 + w[3]*t3
+#==============================================================================
+def bezier_cubic_curve(t, weigths):
+    if len(weigths) != 4:
+        return None
+    t2 = t * t
+    t3 = t2 * t
+    mt = 1-t
+    mt2 = mt * mt
+    mt3 = mt2 * mt
+    return weigths[0]*mt3 + weigths[1]*3*mt2*t + weigths[2]*3*mt*t2 + weigths[3]*t3    
+
+
+class Bezier():
+    """ bezier curve object
+    
+    points : list of control points
+    points = [(-1,-1,0.0),(0,3,0.0)]
+    """
+    def __init__(self, points):
+        if (None in [points]) :
+            print "\nERROR in : bezier.__init__"
+            print "'points' not defined !"
+            return None
+        
+        n = len(t)
+        pass
+    
+if __name__ == "__main__":
+    import matplotlib.pyplot as plt
+    import numpy as np
+    t = np.arange(0.0, 1.0, 0.01)
+    b1 = bezier_base(1, t)
+    plt.plot(t, b1)
+    b2 = bezier_base(2, t)
+    plt.plot(t, b2)
+    b3 = bezier_base(3, t)
+    plt.plot(t, b3)
+    plt.xlabel('t values')
+    plt.ylabel('')
+    plt.title('Bezier basis functions : b1(blue), b2(green) and b3(red)')
+    plt.grid(True)
+    plt.show()
+    
+#    print str(binomial(0, 0))
+#    print str(binomial(1, 0)),
+#    print str(binomial(1, 1))
+    
+    print ("Pascal's triangle :") 
+    for j in range(0,10):        
+        for i in range(0,j+1):
+            print str(binomial(j, i)),
+        print ""
+        
+#    m_points = [(-1,-1,0.0),(0,3,0.0)]
+#    bz=Bezier(m_points)    t = np.arange(0.0, 1.0, 0.01)
+    t = np.arange(0.0, 1.0, 0.01)
+    b12,b22,b32 = bezier_quadratic_terms(t)
+    plt.plot(t, b12)
+    plt.plot(t, b22)
+    plt.plot(t, b32)
+
+    plt.xlabel('t values')
+    plt.ylabel('')
+    plt.title('Bezier basis functions terms : quadratic')
+    plt.grid(True)
+    plt.show()
+    
+    t = np.arange(0.0, 1.0, 0.01)
+    b13,b23,b33,b43 = bezier_cubic_terms(t)
+    plt.plot(t, b13)
+    plt.plot(t, b23)
+    plt.plot(t, b33)
+    plt.plot(t, b43)
+    plt.title('Bezier basis functions terms : cubic')
+    plt.show()
+    
+    t = np.arange(0.0, 1.0, 0.01)
+    m_terms = list()
+    m_terms = bezier_terms(15,t)
+    for term in m_terms:
+        plt.plot(t, term)
+    plt.title('Bezier basis functions terms : 15')
+    plt.show() 
+    pt1 = (120,160)
+    pt2 = (35,200) 
+    pt3 = (220,260) 
+    pt4 = (220,40)   
+    x = (120,35,220,220)
+    y = (160,200,260,40)
+    
+    t = np.arange(0.0, 1.0, 0.01)
+    m_dim = len(x)-1
+    m_Xs = bezier_curve(m_dim, t, x)
+    m_Xs = bezier_cubic_curve(t, x)
+    plt.plot(t, m_Xs)
+    plt.title('Bezier curve : X')
+    plt.show()
+    m_dim = len(y)-1
+    m_Ys = bezier_curve(m_dim, t, y)
+    m_Ys = bezier_cubic_curve(t, y)
+    plt.plot(t, m_Ys)
+    plt.title('Bezier curve : Y')
+    plt.show()
+    
+    plt.plot(m_Xs, m_Ys)
+    plt.plot(x, y, 'o-')
+    plt.show()
+    
+    t = np.arange(-0.2, 1.1, 0.01)
+    m_Xs = bezier_curve(m_dim, t, x)
+    m_Ys = bezier_curve(m_dim, t, y)
+    plt.plot(m_Xs, m_Ys)
+    plt.plot(x, y, 'o-')
+    plt.show() 
+    
+#==============================================================================
+#     import matplotlib as mpl
+#     from mpl_toolkits.mplot3d import Axes3D
+#     import numpy as np
+#     import matplotlib.pyplot as plt
+#     
+#     mpl.rcParams['legend.fontsize'] = 10
+#     
+#     fig = plt.figure()
+#     ax = fig.gca(projection='3d')
+#     theta = np.linspace(-4 * np.pi, 4 * np.pi, 100)
+#     z = np.linspace(-2, 2, 100)
+#     r = z**2 + 1
+#     x = r * np.sin(theta)
+#     y = r * np.cos(theta)
+#     ax.plot(x, y, z, label='parametric curve')
+#     ax.legend()
+#     
+#     plt.show() 
+#==============================================================================
+    
+    
--- a/WorkFeature/Utils/WF_line.py
+++ b/WorkFeature/Utils/WF_line.py
@ -0,0 +1,142 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Thu Jan 21 21:21:12 2016
+
+@author: laurent
+"""
+
+import Draft, Part
+ 
+__title__   = "FCConvertLines"
+__author__  = "Mario52"
+__url__     = "http://www.freecadweb.org/index-fr.html"
+__version__ = "00.01"
+__date__    = "19/01/2016"
+ 
+def dashLine(dash01 = 2.0, space01 = 1.0, dash02 = 1.0, space02 = 1.0, compLine = 0, red = 0, green = 0, blue = 0, typeLine = 1):
+                                                                                              # typeLine = 1 "_ _ _ _ _ _ _ _ _ "  dash         (dash01, space01)
+                                                                                              # typeLine = 2 "___ _ ___ _ ___ _ "  dash dot     (dash01, space01, dash02)
+                                                                                              # typeLine = 3 "___ _ _ ___ _ _ ___" dash dot dot (dash01, space01, dash02, space02)
+    def createLines(numberOfPoints, points):
+        space = 0
+        for lin in range(numberOfPoints-1):
+            if space == 0:
+                creaLine = [FreeCAD.Vector(points[lin]),FreeCAD.Vector(points[lin+1])]
+                wire =  Draft.makeWire(creaLine,closed=False,face=False,support=None)
+                space = 1
+                ligne.append(wire.Shape)                                      # for compount 
+                nom.append(wire.Name)                                         # for compount
+            else:
+                space = 0
+            # si pas possible affiche cette ligne                             # Cannot compute Inventor representation for the shape of Shape. 
+ 
+    def colorize():
+        FreeCADGui.activeDocument().activeObject().LineColor  = (float(red)/255,float(green)/255,float(blue)/255)
+        FreeCADGui.activeDocument().activeObject().PointColor = (float(red)/255,float(green)/255,float(blue)/255)
+        FreeCADGui.activeDocument().activeObject().ShapeColor = (float(red)/255,float(green)/255,float(blue)/255)
+ 
+    if dash01 and space01 and dash02 and space02 != 0:
+        nom       = []; nom[:]     = []
+        ligne     = []; ligne[:]   = []
+        comp2     = []; comp2[:]   = []
+        points    = []; points[:]  = []
+        points2   = []; points2[:] = []
+ 
+        precision = 1000                                                      # permet 3 decimales = 0.001
+        dash01    = dash01  * precision
+        space01   = space01 * precision
+        dash02    = dash02  * precision
+        space02   = space02 * precision
+ 
+        try:
+#######Selectionne un ou des objets vue 3D ou vue combinnee (subObjects complete) getSelection()############################
+#            compt_Oject = -1                                                                                              #
+#            selectionObjects = FreeCADGui.Selection.getSelection()                                                        # Select an object or primitive getSelection()
+#            for selection in enumerate(selectionObjects):                                                                 #
+#                compt_Oject += 1                                                                                          #
+#                compt_Edges = -1                                                                                          #
+#                for selectedEdge in enumerate(selectionObjects[compt_Oject].Shape.Edges):                                 # Search the "Edges" and their lengths
+#                    compt_Edges += 1                                                                                      #
+#                    longueur = (selectionObjects[compt_Oject].Shape.Edges[compt_Edges].Length) * precision                #
+#                    if (dash01 + space01 + dash02 + space02) >= longueur:                                                 #
+#                        dash01    = int(longueur / 6)                                                                     # altenate solution
+#                        space01   = int(longueur / 6)                                                                     # altenate solution
+#                        dash02    = int(longueur / 6)                                                                     # altenate solution
+#                        space02   = int(longueur / 6)                                                                     # altenate solution
+#                        FreeCAD.Console.PrintError("Alernate Dash"+"\n")                                                  # altenate solution
+#                    numberOfPoints = longueur                                                                             #
+#                    points = selectionObjects[compt_Oject].Shape.Edges[compt_Edges].discretize(int(numberOfPoints))       # Dicretize
+############################################################################################################################
+#####selection 1 objet ou sous objet a la fois dans la vue 3D getSelectionEx()#############################################
+            selectionObjects = FreeCADGui.Selection.getSelectionEx()                                                      # Select an object or sub object getSelectionEx
+            for selection in selectionObjects:                                                                            #
+                for selectedEdge in selection.SubObjects:                                                                 #
+                    longueur = (selectedEdge.Length) * precision                                                          #
+                    if (dash01 + space01 + dash02 + space02) >= longueur:                                                 # altenate solution
+                        dash01    = int(longueur / 6)                                                                     # altenate solution
+                        space01   = int(longueur / 6)                                                                     # altenate solution
+                        dash02    = int(longueur / 6)                                                                     # altenate solution
+                        space02   = int(longueur / 6)                                                                     # altenate solution
+                        FreeCAD.Console.PrintError("Alernate Dash"+"\n")                                                  # altenate solution
+                    numberOfPoints = longueur                                                                             #
+                    points = selectedEdge.Edges[0].discretize(int(numberOfPoints))                                        # Dicretize
+###########################################################################################################################
+            #######cut line in dashDot coordinates#########################################################################
+                    compt = 0
+                    points2 += [points[0]]
+ 
+                    for ii2 in range(len(points)):
+                        try:
+                            compt += int(dash01)
+                            points2 += [points[compt]]
+                            compt += int(space01)
+                            points2 += [points[compt]]
+                            if typeLine > 1:                                  # typeLine = 2    "___ _ ___ _ ___ _ "  dash dot
+                                compt += int(dash02)
+                                points2 += [points[compt]]
+                                compt += int(space01)
+                                points2 += [points[compt]]
+                                if typeLine > 2:                              # typeLine = 3    "___ _ _ ___ _ _ ___" dash dot dot
+                                    compt += int(dash02)
+                                    points2 += [points[compt]]
+                                    compt += int(space01)
+                                    points2 += [points[compt]]
+                        except Exception:
+                            points2 += [points[-1]]
+                            points2[-1] = points[-1]
+                            break
+ 
+                    createLines(len(points2), points2)
+            #######cut line in dash coordinates##############################################################################
+ 
+                    if compLine == 0:
+                        comp = Part.makeCompound(ligne)                           # si compount ligne separee
+                        Part.show(comp)                                           # si compount ligne separee
+                    else:
+                        comp2 += ligne
+                    colorize()
+                    ligne[:]  = []                                            # si compount ligne separee
+ 
+                    points[:]  = []
+                    points2[:] = []
+ 
+            for i in nom:
+                FreeCAD.ActiveDocument.removeObject(i)
+ 
+            if compLine != 0:                                                 # 1 = toutes les selections en un compount
+                comp = Part.makeCompound(comp2)                               # si compount ensemble complet
+                Part.show(comp)                                               # si compount ensemble complet
+                colorize()
+ 
+            nom[:]     = []
+            ligne[:]   = []
+            comp2[:]   = []
+            points[:]  = []
+            points2[:] = []
+ 
+        except Exception:
+            FreeCAD.Console.PrintError("can not create"+"\n")
+    else:
+        FreeCAD.Console.PrintError("Zero not permitted"+"\n")
+ 
+#dashLine(dash01 = 1.0, space01 = 0.2, dash02 = 0.2, space02 = 0.2, compLine = 0, red = 0, green = 0, blue = 255, typeLine = 2)
--- a/WorkFeature/Utils/WF_plane.py
+++ b/WorkFeature/Utils/WF_plane.py
@ -0,0 +1,104 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Thu Jan 21 22:10:41 2016
+
+@author: laurent
+"""
+
+import numpy as np
+import scipy.optimize
+
+def fitPLaneLTSQ(XYZ):
+    # Fits a plane to a point cloud, 
+    # Where Z = aX + bY + c        ----Eqn #1
+    # Rearanging Eqn1: aX + bY -Z +c =0
+    # Gives normal (a,b,-1)
+    # Normal = (a,b,-1)
+    [rows,cols] = XYZ.shape
+    G = np.ones((rows,3))
+    G[:,0] = XYZ[:,0]  #X
+    G[:,1] = XYZ[:,1]  #Y
+    Z = XYZ[:,2]
+    (a,b,c),resid,rank,s = np.linalg.lstsq(G,Z) 
+    normal = (a,b,-1)
+    nn = np.linalg.norm(normal)
+    normal = normal / nn
+    return normal
+
+
+def fitPlaneSVD(XYZ):
+    [rows,cols] = XYZ.shape
+    # Set up constraint equations of the form  AB = 0,
+    # where B is a column vector of the plane coefficients
+    # in the form b(1)*X + b(2)*Y +b(3)*Z + b(4) = 0.
+    p = (np.ones((rows,1)))
+    AB = np.hstack([XYZ,p])
+    [u, d, v] = np.linalg.svd(AB,0)        
+    B = v[3,:];                    # Solution is last column of v.
+    nn = np.linalg.norm(B[0:3])
+    B = B / nn
+    return B[0:3]
+
+
+def fitPlaneEigen(XYZ):
+    # Works, in this case but don't understand!
+    average=sum(XYZ)/XYZ.shape[0]
+    covariant=np.cov(XYZ - average)
+    eigenvalues,eigenvectors = np.linalg.eig(covariant)
+    want_max = eigenvectors[:,eigenvalues.argmax()]
+    (c,a,b) = want_max[3:6]    # Do not understand! Why 3:6? Why (c,a,b)?
+    normal = np.array([a,b,c])
+    nn = np.linalg.norm(normal)
+    return normal / nn  
+
+def fitPlaneSolve(XYZ):
+    X = XYZ[:,0]
+    Y = XYZ[:,1]
+    Z = XYZ[:,2] 
+    npts = len(X)
+    A = np.array([ [sum(X*X), sum(X*Y), sum(X)],
+                   [sum(X*Y), sum(Y*Y), sum(Y)],
+                   [sum(X),   sum(Y), npts] ])
+    B = np.array([ [sum(X*Z), sum(Y*Z), sum(Z)] ])
+    normal = np.linalg.solve(A,B.T)
+    nn = np.linalg.norm(normal)
+    normal = normal / nn
+    return normal.ravel()
+
+def fitPlaneOptimize(XYZ):
+    def residiuals(parameter,f,x,y):
+        return [(f[i] - model(parameter,x[i],y[i])) for i in range(len(f))]
+
+
+    def model(parameter, x, y):
+        a, b, c = parameter
+        return a*x + b*y + c
+
+    X = XYZ[:,0]
+    Y = XYZ[:,1]
+    Z = XYZ[:,2]
+    p0 = [1., 1.,1.] # initial guess
+    result = scipy.optimize.leastsq(residiuals, p0, args=(Z,X,Y))[0]
+    normal = result[0:3]
+    nn = np.linalg.norm(normal)
+    normal = normal / nn
+    return normal
+
+
+if __name__=="__main__":
+    XYZ = np.array([
+        [0,0,1],
+        [0,1,2],
+        [0,2,3],
+        [1,0,1],
+        [1,1,2],
+        [1,2,3],
+        [2,0,1],
+        [2,1,2],
+        [2,2,3]
+        ])
+    print "Solve: ",fitPlaneSolve(XYZ)
+    print "Optim: ",fitPlaneOptimize(XYZ)
+    print "SVD:   ",fitPlaneSVD(XYZ)
+    print "LTSQ:  ",fitPLaneLTSQ(XYZ)
+    print "Eigen: ",fitPlaneEigen(XYZ)
--- a/WorkFeature/Utils/WF_points_set.pyc
+++ b/WorkFeature/Utils/WF_points_set.pyc
--- a/WorkFeature/WFGui_2015.py
+++ b/WorkFeature/WFGui_2015.py
--- a/WorkFeature/WFGui_2015.ui
+++ b/WorkFeature/WFGui_2015.ui
--- a/WorkFeature/WF_2015.py
+++ b/WorkFeature/WF_2015.py
--- a/WorkFeature/WF_Utils_2015.py
+++ b/WorkFeature/WF_Utils_2015.py
@ -2,6 +2,7 @@
 """
 """
 import os.path
+#import FreeCAD as App

 from PySide import QtCore
 try:
@ -157,6 +158,359 @@ def read_text(filename):
              
 ###############################################################################                
 # Classes
+class Selection():
+    """ 
+    Create a Selection Object
+
+    *Gui_Selection* : selected object from GUI.
+    
+        m_activeDoc = App.activeDocument()
+        if m_activeDoc == None:
+            message = "No Active document selected !"
+            return (None, message)
+        
+        if m_activeDoc.Name:
+            m_selEx = Gui.Selection.getSelectionEx(m_activeDoc.Name)
+            m_sel = Selection(m_selEx)
+    """
+    def __init__(self, Gui_Selection):
+        self.__numberOfEntities = 0
+        self.__numberOfVertexes = 0
+        self.__numberOfEdges = 0
+        self.__numberOfWires = 0
+        self.__numberOfFaces = 0
+        self.__numberOfObjects = 0
+        self.__numberOfImages = 0
+        self.__selectedVertices = []
+        self.__selectedEdges = []
+        self.__selectedWires = []
+        self.__selectedFaces = []
+        self.__selectedObjects = []
+        self.__selectedImages = []
+        self.__selEx = None
+        if Gui_Selection == None:
+            message = "No Selection from Active document passed !"
+            return (None, message)
+        self.__selEx = Gui_Selection
+        
+        self.initialize()
+         
+    def storeShapeType(self, Object):
+        if Object.ShapeType == "Vertex":
+            self.__selectedVertices.append(Object)
+            return True
+        if Object.ShapeType == "Edge":
+            self.__selectedEdges.append(Object)
+            return True
+        if Object.ShapeType == "Wire":
+            self.__selectedWires.append(Object)
+            return True  
+        if Object.ShapeType == "Face":
+            self.__selectedFaces.append(Object)
+            return True
+        return False
+    
+    def initialize(self):
+        self.__numberOfEntities = len (self.__selEx)
+        
+        if self.__numberOfEntities >= 1:
+            for m_Sel_i_Object in self.__selEx:
+                if not m_Sel_i_Object.HasSubObjects:
+                    if hasattr(m_Sel_i_Object, 'Object'):
+                        m_Object = m_Sel_i_Object.Object
+                        if hasattr(m_Object, 'ShapeType'):
+                            self.storeShapeType(m_Object)
+                        if hasattr(m_Object, 'Shape'):
+                            self.__selectedObjects.append(m_Object)
+                        if hasattr(m_Object, 'ImageFile'):
+                            self.__selectedImages.append(m_Object)
+                        
+#                         if hasattr(m_Sel_i_Object.Object, 'Shape'):
+# #                             if hasattr(m_Sel_i_Object.Object.Shape, 'ShapeType'):
+# #                                 if not self.storeShapeType(m_Sel_i_Object.Object.Shape):
+# #                                     self.__selectedObjects.append(m_Sel_i_Object.Object)
+                else:
+                    for m_Object in m_Sel_i_Object.SubObjects:
+                        if hasattr(m_Object, 'ShapeType'):
+                            self.storeShapeType(m_Object)
+                        if hasattr(m_Object, 'Shape'):
+                            self.__selectedObjects.append(m_Object)
+                        if hasattr(m_Object, 'ImageFile'):
+                            self.__selectedImages.append(m_Object)
+                                        
+            self.__numberOfVertexes  = len(self.__selectedVertices)
+            self.__numberOfEdges     = len(self.__selectedEdges)
+            self.__numberOfWires     = len(self.__selectedWires)
+            self.__numberOfFaces     = len(self.__selectedFaces)
+            self.__numberOfObjects   = len(self.__selectedObjects)
+            self.__numberOfImages    = len(self.__selectedImages)
+            message = "Initialization done !"
+            return message
+        else:
+            message = "No Object selected !"
+            return (None, message)
+        
+        message = ""
+        return (None, message)
+      
+     
+    def __getNumberOfEntities(self):
+        return self.__numberOfEntities    
+    
+    def __setNumberOfEntities(self, val):
+        self.__numberOfEntities = val
+           
+    numberOfEntities = property(__getNumberOfEntities, __setNumberOfEntities)
+         
+    def __getNumberOfPoints(self):
+        return self.__numberOfVertexes
+     
+    def __setNumberOfPoints(self, val):
+        self.__numberOfVertexes = val
+           
+    numberOfPoints = property(__getNumberOfPoints, __setNumberOfPoints) 
+    
+    def __getNumberOfSegments(self):
+        return self.__numberOfEdges
+     
+    def __setNumberOfSegments(self, val):
+        self.__numberOfEdges = val
+           
+    numberOfSegments = property(__getNumberOfSegments, __setNumberOfSegments) 
+    
+    def __getNumberOfCurves(self):
+        return self.__numberOfWires
+     
+    def __setNumberOfCurves(self, val):
+        self.__numberOfWires = val
+           
+    numberOfCurves = property(__getNumberOfCurves, __setNumberOfCurves) 
+    
+    def __getNumberOfPlanes(self):
+        return self.__numberOfFaces
+     
+    def __setNumberOfPlanes(self, val):
+        self.__numberOfFaces = val
+           
+    numberOfPlanes = property(__getNumberOfPlanes, __setNumberOfPlanes) 
+    
+    def __getNumberOfObjects(self):
+        return self.__numberOfObjects
+     
+    def __setNumberOfObjects(self, val):
+        self.__numberOfObjects = val
+           
+    numberOfObjects = property(__getNumberOfObjects, __setNumberOfObjects)
+    
+        
+    def __getNumberOfImages(self):
+        return self.__numberOfImages
+     
+    def __setNumberOfImages(self, val):
+        self.__numberOfImages = val
+           
+    numberOfImages = property(__getNumberOfImages, __setNumberOfImages)
+    
+    def __str__(self):
+        message  = "Gui_Selection      : " + str(self.__selEx)
+        message += "\nNumberOfImages     : " + str(self.__numberOfImages)
+        message += "\nNumberOfObjects    : " + str(self.__numberOfObjects)
+        message += "\nNumberOfPlanes     : " + str(self.__numberOfFaces)
+        message += "\nNumberOfCurves     : " + str(self.__numberOfWires)
+        message += "\nNumberOfSegments   : " + str(self.__numberOfEdges)
+        message += "\nNumberOfPoints     : " + str(self.__numberOfVertexes)
+        message += "\nNumberOfEntities   : " + str(self.__numberOfEntities)                               
+        return (message)
+    
+    
+    def get_points(self, getfrom=["Points","Segments","Curves","Planes","Objects"]):
+        """ Return all Points found in selection including the Points from objects as
+        (Number of Points, list of Vertexes)
+        Return None if no Point detected 
+        """
+        Selected_Entities = []
+        
+        if self.numberOfEntities == 0 :
+            return None
+        
+        if self.numberOfPoints > 0 and "Points" in getfrom :
+            for m_point in self.__selectedVertices:
+                Selected_Entities.append(m_point)
+                
+        if self.numberOfSegments > 0 and "Segments" in getfrom :
+            for m_edge in self.__selectedEdges:
+                Selected_Entities.append(m_edge.Vertexes[0])
+                Selected_Entities.append(m_edge.Vertexes[-1])
+        # TOCOMPLETE
+        if self.numberOfCurves > 0 and "Curves" in getfrom :
+            pass
+                
+        if self.numberOfPlanes > 0 and "Planes" in getfrom :
+            for m_face in self.__selectedFaces:
+                m_edges_list = m_face.Edges
+                for m_edge in m_edges_list:
+                    Selected_Entities.append(m_edge.Vertexes[0])
+                    Selected_Entities.append(m_edge.Vertexes[-1])
+         
+        if self.numberOfObjects  > 0 and "Objects" in getfrom :
+            for m_object in self.__selectedObjects:
+                for m_vertex in m_object.Shape.Vertexes:
+                    Selected_Entities.append(m_vertex)  
+        
+        if len(Selected_Entities) != 0:                          
+            return (len(Selected_Entities), Selected_Entities)
+        else:
+            return (0, None)      
+    
+    
+    def get_segments(self, getfrom=["Points","Segments","Curves","Planes","Objects"]):   
+        """ Return all Segments found in selection including the Segments from objects as
+        (Number of Segments, list of Edges)
+        In case of at least 2 points selected it will create a line from these 2 points
+        Return None if no Segment detected      
+        """
+        Selected_Entities = []
+               
+        if self.numberOfEntities == 0 :
+            return None
+        
+        if self.numberOfPoints >= 2 and "Points" in getfrom :
+            import Part
+            for m_p1,m_p2 in zip(self.__selectedVertices, self.__selectedVertices[1:]):
+                m_diff = m_p2.Point.sub(m_p1.Point)
+                tolerance = 1e-10
+                if abs(m_diff.x) <= tolerance and abs(m_diff.y) <= tolerance and abs(m_diff.z) <= tolerance:
+                    continue 
+                Selected_Entities.append(Part.makeLine(m_p2.Point, m_p1.Point))        
+                
+        if self.numberOfSegments > 0 and "Segments" in getfrom :
+            for m_edge in self.__selectedEdges:
+                Selected_Entities.append(m_edge)
+        # TOCOMPLETE
+        if self.numberOfCurves > 0 and "Curves" in getfrom :
+            for m_wire in self.__selectedWires:
+                Selected_Entities.append(m_wire)
+                
+        if self.numberOfPlanes > 0 and "Planes" in getfrom :
+            for m_face in self.__selectedFaces:
+                m_edges_list = m_face.Edges
+                for m_edge in m_edges_list:
+                    Selected_Entities.append(m_edge)
+         
+        if self.numberOfObjects  > 0 and "Objects" in getfrom :
+            for m_object in self.__selectedObjects:
+                for m_edge in m_object.Shape.Edges:
+                    Selected_Entities.append(m_edge) 
+        
+        if len(Selected_Entities) != 0:                          
+            return (len(Selected_Entities), Selected_Entities)
+        else:
+            return (0, None)  
+    
+    
+    def get_curves(self, getfrom=["Points","Segments","Curves","Planes","Objects"]):
+        Selected_Entities = []
+                       
+        if self.numberOfEntities == 0 :
+            return None        
+        
+        if self.numberOfCurves > 0 and "Curves" in getfrom :
+            for m_wire in self.__selectedWires:
+                Selected_Entities.append(m_wire)
+                
+        if self.numberOfPlanes > 0 and "Planes" in getfrom :
+            for m_face in self.__selectedFaces:
+                m_wires_list = m_face.Wires
+                for m_wire in m_wires_list:
+                    Selected_Entities.append(m_wire)
+         
+        if self.numberOfObjects  > 0 and "Objects" in getfrom :
+            for m_object in self.__selectedObjects:
+                for m_wire in m_object.Shape.Wires:
+                    Selected_Entities.append(m_wire) 
+        
+        if len(Selected_Entities) != 0:                          
+            return (len(Selected_Entities), Selected_Entities)
+        else:
+            return (0, None)   
+    
+    
+    def get_planes(self, getfrom=["Points","Segments","Curves","Planes","Objects"]):
+        Selected_Entities = []
+                       
+        if self.numberOfEntities == 0 :
+            return None 
+          
+        # TOCOMPLETE
+#         if self.numberOfPoints >= 3 and "Points" in getfrom :
+#             import Part
+#             for m_p1,m_p2 in zip(self.__selectedVertices, self.__selectedVertices[1:]):
+#                 m_diff = m_p2.Point.sub(m_p1.Point)
+#                 tolerance = 1e-10
+#                 if abs(m_diff.x) <= tolerance and abs(m_diff.y) <= tolerance and abs(m_diff.z) <= tolerance:
+#                     continue 
+#                 Selected_Entities.append(Part.makeLine(m_p2.Point, m_p1.Point))         
+#         
+#         # TOCOMPLETE        
+#         if self.numberOfSegments >= 2 and "Segments" in getfrom :
+#             import Part
+#             for m_l1,m_l2 in zip(self.__selectedEdges, self.__selectedEdges[1:]):
+#             for m_edge in self.__selectedEdges
+#                 Selected_Entities.append(m_edge) 
+                
+                                      
+        if self.numberOfPlanes > 0 and "Planes" in getfrom :
+            for m_face in self.__selectedFaces:
+                Selected_Entities.append(m_face)
+         
+        if self.numberOfObjects  > 0 and "Objects" in getfrom :
+            for m_object in self.__selectedObjects:
+                for m_face in m_object.Shape.Faces:
+                    Selected_Entities.append(m_face) 
+        
+        if len(Selected_Entities) != 0:                          
+            return (len(Selected_Entities), Selected_Entities)
+        else:
+            return (0, None)   
+    
+        
+    def get_objects(self):
+        Selected_Entities = []
+        pass
+  
+  
+    def get_primer_selected_entities(self, selection_type):
+        Selected_Entities = selection_type
+        if len(Selected_Entities) != 0:                          
+            return (len(Selected_Entities), Selected_Entities)
+        else:
+            return (0, None)  
+    
+     
+    def get_primerPoints(self):
+        return self.get_primer_selected_entities(self.__selectedVertices)
+    
+        
+    def get_primerSegments(self):
+        return self.get_primer_selected_entities(self.__selectedEdges)
+    
+    
+    def get_primerCurves(self):
+        return self.get_primer_selected_entities(self.__selectedWires)
+    
+    
+    def get_primerPlanes(self):
+        return self.get_primer_selected_entities(self.__selectedFaces)
+    
+    
+    def get_primerObjects(self):
+        return self.get_primer_selected_entities(self.__selectedObjects)
+    
+      
+    def get_primerImages(self):
+        return self.get_primer_selected_entities(self.__selectedImages)
+
+    
 class DefineAndConnectEvents():
    def __init__(self, ui, obj):
        """
--- a/start_WF.py
+++ b/start_WF.py
@ -2,17 +2,40 @@
 import sys
 import os.path

+# Change this by your own FreeCAD lib path to import FreeCAD
+if not sys.path.__contains__("/usr/lib/freecad/lib"): 
+    sys.path.append("/usr/lib/freecad/lib")
+
 try:
    # try import
    import WorkFeature.WF_2015 as WF
 except:
-    # get the path of the current python script    
-    m_current_path = os.path.realpath(__file__)
-    m_current_path = os.path.dirname(m_current_path)
-    # check if this path belongs to the PYTHONPATH variable and if not add it
-    if not sys.path.__contains__(str(m_current_path)):
-        sys.path.append(str(m_current_path))
-    # retry import now
-    import WorkFeature.WF_2015 as WF
-  
+    try:
+        import FreeCAD            
+        # first check if the path to WorkFeature was set in the preferences
+        param = FreeCAD.ParamGet('User parameter:Plugins/workfeature')
+        m_current_path = param.GetString('destination','')
+        if not m_current_path:
+            # get the path of the current python script    
+            m_current_path = os.path.realpath(__file__)
+            m_current_path = os.path.dirname(m_current_path)
+        # check if this path belongs to the PYTHONPATH variable and if not add it
+        if not sys.path.__contains__(str(m_current_path)):
+            sys.path.append(str(m_current_path))
+        # retry import now
+        try:
+            import WorkFeature.WF_2015 as WF
+        except:
+            # we still cannot find WorkFeature. Ask the user
+            from PySide import QtGui
+            folderDialog = QtGui.QFileDialog.getExistingDirectory(None,QtGui.QApplication.translate("WorkFeature", "Location of your WorkFeature folder", None, QtGui.QApplication.UnicodeUTF8))
+            param.SetString('destination',folderDialog)
+            m_current_path = param.GetString('destination')
+            sys.path.append(str(m_current_path))
+            # retry import
+            import WorkFeature.WF_2015 as WF
+    except:
+        print "ERROR:cannot load FreeCAD module...modify line 6 and 7 of this script !!"
+        sys.exit(1)
+        
 WF.myDialog = WF.WorkFeatureTab()