FEM: node sets, return sorted with unique values

src/Mod/Fem/femmesh/meshtools.py

@@ -52,7 +52,10 @@ def get_femnodes_by_femobj_with_references(
         node_set = get_femnodes_by_references(femmesh, femobj["Object"].References)
         # FreeCAD.Console.PrintMessage("node_set_nogroup: {}\n".format(node_set))
 
-    return node_set
+    # use set for node sets to be sure all nodes are unique
+    # use sorted to be sure the order is the same on different runs
+    # be aware a sorted set returns a list, because set are not sorted by default
+    return sorted(set(node_set))
 
 
 # ************************************************************************************************

src/Mod/Fem/femsolver/writerbase.py

@@ -123,6 +123,12 @@ def __init__(
         self.femelement_edges_table = {}
         self.femelement_count_test = True
 
+    # use set for node sets to be sure all nodes are unique
+    # use sorted to be sure the order is the same on different runs
+    # be aware a sorted set returns a list, because set are not sorted by default
+    #     - done in return value of meshtools.get_femnodes_by_femobj_with_references
+    # might be appropriate for element sets too
+
     def get_constraints_fixed_nodes(self):
         # get nodes
         for femobj in self.fixed_objects:

src/Mod/Fem/femtest/data/ccx/constraint_contact_solid_solid.inp

@@ -4346,15 +4346,22 @@ Evolumes
 20,
 21,
 22,
-1561,
-1562,
-1563,
-1564,
-1565,
-1566,
-1567,
-1568,
-1569,
+91,
+92,
+93,
+94,
+95,
+96,
+97,
+98,
+99,
+164,
+165,
+166,
+167,
+168,
+274,
+366,
 559,
 560,
 561,
@@ -4373,15 +4380,6 @@ Evolumes
 574,
 575,
 576,
-91,
-92,
-93,
-94,
-95,
-96,
-97,
-98,
-99,
 649,
 650,
 651,
@@ -4394,20 +4392,6 @@ Evolumes
 658,
 659,
 660,
-164,
-165,
-166,
-167,
-168,
-1210,
-1211,
-1212,
-1213,
-1214,
-1215,
-1216,
-1217,
-1218,
 727,
 728,
 729,
@@ -4426,8 +4410,24 @@ Evolumes
 742,
 743,
 744,
-274,
-366,
+1210,
+1211,
+1212,
+1213,
+1214,
+1215,
+1216,
+1217,
+1218,
+1561,
+1562,
+1563,
+1564,
+1565,
+1566,
+1567,
+1568,
+1569,
 
 ***********************************************************
 ** Surfaces for contact constraint
@@ -5359,9 +5359,9 @@ RF
 ***********************************************************
 ** CalculiX Input file
 ** written by write_footer function
-**   written by    --> FreeCAD 0.19.19441 (Git)
-**   written on    --> Sat Feb  1 13:08:12 2020
-**   file name     --> Constraint_Contact_Solid_Solid.FCStd
+**   written by    --> FreeCAD 0.19.19463 (Git)
+**   written on    --> Mon Feb  3 23:28:02 2020
+**   file name     --> 
 **   analysis name --> Analysis
 **
 **

src/Mod/Fem/femtest/data/ccx/mat_multiple.inp

@@ -1174,6 +1174,18 @@ Evolumes
 10,
 11,
 12,
+52,
+53,
+54,
+58,
+59,
+60,
+64,
+65,
+66,
+67,
+68,
+69,
 273,
 274,
 275,
@@ -1199,18 +1211,6 @@ Evolumes
 295,
 296,
 297,
-52,
-53,
-54,
-58,
-59,
-60,
-64,
-65,
-66,
-67,
-68,
-69,
 
 ***********************************************************
 ** Materials
@@ -1293,9 +1293,9 @@ RF
 ***********************************************************
 ** CalculiX Input file
 ** written by write_footer function
-**   written by    --> FreeCAD 0.17.13310 (Git)
-**   written on    --> Tue Feb 20 07:42:43 2018
-**   file name     --> multimat.fcstd
+**   written by    --> FreeCAD 0.19.19432 (Git)
+**   written on    --> Fri Jan 31 08:06:05 2020
+**   file name     --> 
 **   analysis name --> Analysis
 **
 **

src/Mod/Fem/femtest/data/ccx/mat_nonlinear.inp

@@ -19788,6 +19788,85 @@ Evolumes
 7,
 8,
 11,
+250,
+409,
+410,
+411,
+412,
+413,
+414,
+415,
+416,
+417,
+418,
+419,
+420,
+421,
+422,
+423,
+424,
+425,
+426,
+427,
+428,
+429,
+430,
+431,
+432,
+433,
+434,
+435,
+436,
+437,
+438,
+439,
+440,
+441,
+442,
+443,
+444,
+445,
+446,
+447,
+448,
+449,
+450,
+451,
+452,
+453,
+454,
+455,
+456,
+457,
+458,
+459,
+460,
+461,
+462,
+463,
+464,
+465,
+466,
+467,
+468,
+469,
+470,
+471,
+472,
+473,
+474,
+475,
+476,
+477,
+478,
+479,
+480,
+481,
+482,
+483,
+484,
+485,
+486,
 1211,
 1212,
 1213,
@@ -19851,7 +19930,6 @@ Evolumes
 1271,
 1272,
 1273,
-250,
 1274,
 1275,
 1276,
@@ -19908,84 +19986,6 @@ Evolumes
 1327,
 1328,
 1329,
-409,
-410,
-411,
-412,
-413,
-414,
-415,
-416,
-417,
-418,
-419,
-420,
-421,
-422,
-423,
-424,
-425,
-426,
-427,
-428,
-429,
-430,
-431,
-432,
-433,
-434,
-435,
-436,
-437,
-438,
-439,
-440,
-441,
-442,
-443,
-444,
-445,
-446,
-447,
-448,
-449,
-450,
-451,
-452,
-453,
-454,
-455,
-456,
-457,
-458,
-459,
-460,
-461,
-462,
-463,
-464,
-465,
-466,
-467,
-468,
-469,
-470,
-471,
-472,
-473,
-474,
-475,
-476,
-477,
-478,
-479,
-480,
-481,
-482,
-483,
-484,
-485,
-486,
 
 ***********************************************************
 ** Materials
@@ -20130,9 +20130,9 @@ RF
 ***********************************************************
 ** CalculiX Input file
 ** written by write_footer function
-**   written by    --> FreeCAD 0.19.19295 (Git)
-**   written on    --> Sun Jan 19 12:59:27 2020
-**   file name     --> Nonlinear_material_plate_with_hole.FCStd
+**   written by    --> FreeCAD 0.19.19432 (Git)
+**   written on    --> Fri Jan 31 08:04:49 2020
+**   file name     --> 
 **   analysis name --> Analysis
 **
 **