Merge pull request #382 from kbwbe/temp

added a tool for finding conflicting constraints

InitGui.py

@@ -26,7 +26,7 @@
 __title__ = 'A2plus assembly Workbench - InitGui file'
 __author__ = 'kbwbe'
 
-A2P_VERSION = 'V0.4.46c'
+A2P_VERSION = 'V0.4.47'
 
 import FreeCAD
 import FreeCADGui
@@ -67,6 +67,7 @@ def Initialize(self):
         import a2p_constraintcommands
         import a2p_bom # bom == bill of materials == partslist
         import a2p_constraintServices
+        import a2p_searchConstraintConflicts
 
         if a2plib.getRecursiveUpdateEnabled():
             partCommands = [
@@ -127,7 +128,8 @@ def Initialize(self):
             'a2p_SolverCommand',
             'a2p_ToggleAutoSolveCommand',
             'a2p_FlipConstraintDirectionCommand',
-            'a2p_Show_Hierarchy_Command'
+            'a2p_Show_Hierarchy_Command',
+            'a2p_SearchConstraintConflictsCommand'
             ]
         viewCommands = [
             'a2p_isolateCommand',

a2p_searchConstraintConflicts.py

@@ -0,0 +1,104 @@
+#***************************************************************************
+#*                                                                         *
+#*   Copyright (c) 2020 kbwbe                                              *
+#*                                                                         *
+#*   Based on Work of Dan Miel (Thank you)                         *
+#*                                                                         *
+#*   This program is free software; you can redistribute it and/or modify  *
+#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
+#*   as published by the Free Software Foundation; either version 2 of     *
+#*   the License, or (at your option) any later version.                   *
+#*   for detail see the LICENCE text file.                                 *
+#*                                                                         *
+#*   This program is distributed in the hope that it will be useful,       *
+#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+#*   GNU Library General Public License for more details.                  *
+#*                                                                         *
+#*   You should have received a copy of the GNU Library General Public     *
+#*   License along with this program; if not, write to the Free Software   *
+#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+#*   USA                                                                   *
+#*                                                                         *
+#***************************************************************************
+
+import FreeCAD
+import FreeCADGui
+from PySide import QtGui
+
+import a2plib
+import a2p_solversystem
+
+#==============================================================================
+class a2p_SearchConstraintConflictsCommand:
+    '''
+    Search conflicting constraints by solving them one after each other.
+    '''
+    def Activated(self):
+        doc = FreeCAD.activeDocument()
+
+        workList = []
+        constraints = [ obj for obj in doc.Objects if 'ConstraintInfo' in obj.Content]
+
+        if len(constraints) == 0:
+            flags = QtGui.QMessageBox.StandardButton.Yes
+            QtGui.QMessageBox.information(
+                QtGui.QApplication.activeWindow(), 
+                u'Searching for conflicting constraints', 
+                u'There are no a2p constraints within this document.', 
+                flags
+                )
+            return
+
+        for c in constraints:
+            workList.append(c)
+            solved = a2p_solversystem.solveConstraints(doc,matelist = workList, showFailMessage=False)
+            if solved == False:
+                cMirrorName = c.ViewObject.Proxy.mirror_name
+                cmirror = doc.getObject(cMirrorName)
+                ob1 = doc.getObject(c.Object1)
+                ob2 = doc.getObject(c.Object2)
+                message = \
+u'''
+The following constraint-pair is conflicting
+with previously defined constraints:
+
+constraint : {}
+with mirror: {}
+
+The constraint-pair belongs to the objects:
+
+object1: {}
+object2: {}
+
+Do you want to delete this constraint-pair?
+'''.format(
+    c.Label,
+    cmirror.Label,
+    ob1.Label,
+    ob2.Label
+    )                
+                flags = QtGui.QMessageBox.StandardButton.Yes | QtGui.QMessageBox.StandardButton.No
+                response = QtGui.QMessageBox.information(
+                    QtGui.QApplication.activeWindow(), 
+                    u'Searching for conflicting constraints', 
+                    message, 
+                    flags
+                    )
+                if response == QtGui.QMessageBox.Yes:
+                    a2plib.removeConstraint(c)
+
+    def IsActive(self):
+        if FreeCAD.activeDocument() is None: return False
+        return True
+
+    def GetResources(self):
+        return {
+            'Pixmap'  : a2plib.pathOfModule()+'/icons/a2p_SearchConstraintConflicts.svg',
+            'MenuText': 'Conflictfinder tool: Search conflicting constraints',
+            'ToolTip': 'Conflictfinder tool: Search conflicting constraints by solving them one after another'
+            }
+FreeCADGui.addCommand('a2p_SearchConstraintConflictsCommand', a2p_SearchConstraintConflictsCommand())
+#==============================================================================
+
+

a2p_solversystem.py

@@ -466,7 +466,7 @@ def solveAccuracySteps(self,doc, matelist=None):
 
         return systemSolved
 
-    def solveSystem(self,doc,matelist=None):
+    def solveSystem(self,doc,matelist=None, showFailMessage=True):
         if not a2plib.SIMULATION_STATE:        
             Msg( "\n===== Start Solving System ====== \n" )
 
@@ -485,17 +485,18 @@ def solveSystem(self,doc,matelist=None):
 
             else: # a2plib.SIMULATION_STATE == False
                 self.status = "unsolved"
-                Msg( "===== Could not solve system ====== \n" )
-                msg = \
+                if showFailMessage == True:
+                    Msg( "===== Could not solve system ====== \n" )
+                    msg = \
 '''
 Constraints inconsistent. Cannot solve System.
-Please delete your last created constraint !
+Please run the conflict finder tool !
 '''
-                QtGui.QMessageBox.information(
-                    QtGui.QApplication.activeWindow(),
-                    "Constraint mismatch",
-                    msg
-                    )
+                    QtGui.QMessageBox.information(
+                        QtGui.QApplication.activeWindow(),
+                        "Constraint mismatch",
+                        msg
+                        )
                 return systemSolved
 
     def checkForUnmovedParts(self):
@@ -662,10 +663,10 @@ def solutionToParts(self,doc):
             rig.applySolution(doc, self);
 
 #------------------------------------------------------------------------------
-def solveConstraints( doc, cache=None, useTransaction = True, matelist=None):
+def solveConstraints( doc, cache=None, useTransaction = True, matelist=None, showFailMessage=True):
     if useTransaction: doc.openTransaction("a2p_systemSolving")
     ss = SolverSystem()
-    systemSolved = ss.solveSystem(doc, matelist )
+    systemSolved = ss.solveSystem(doc, matelist, showFailMessage )
     if useTransaction: doc.commitTransaction()
     a2plib.unTouchA2pObjects()
     return systemSolved