constraint: fix constraint multiplication

assembly.py

@@ -1117,14 +1117,8 @@ class AsmElementLink(AsmBase):
         obj.setLink(owner,subname)
 
     def getInfo(self,refresh=False,expand=False):
-        if not refresh:
-            if expand:
-                info = getattr(self,'infos',None)
-                if info:
-                    return info
-            info = getattr(self,'info',None)
-            if info:
-                return [info] if expand else info
+        if not refresh and self.info is not None:
+            return self.infos if expand else self.info
 
         self.info = None
         self.infos *= 0 # clear the list
@@ -1349,12 +1343,36 @@ class AsmConstraint(AsmGroup):
         if len(children)<=1:
             return
         count = 0
+        shapes = []
+        # count the total edges for multiplication
         for e in children[1:]:
             touched = 'Touched' in e.State
             info = e.Proxy.getInfo(not e.Proxy.multiply)
             if not touched:
                 e.purgeTouched()
-            count += info.Shape.countElement('Edge')
+            if info.Shape.countElement('Face'):
+                elementCount = 1
+                name = 'Face1'
+            else:
+                elementCount = info.Shape.countElement('Edge')
+                name = 'Edge1'
+            if not elementCount:
+                shapes.append(None)
+            else:
+                count += elementCount
+                shapes.append(info.Shape.getElement(name))
+
+        for i,e in enumerate(children[1:]):
+            shape = shapes[i]
+            if not shape or not e.Proxy.infos:
+                continue
+            for j,e2 in enumerate(children[i+2:]):
+                shape2 = shapes[i+j+1]
+                if not shape2 or not e2.Proxy.infos:
+                    continue
+                if shape.isCoplanar(shape2):
+                    e.Proxy.infos += e2.Proxy.infos
+                    e2.Proxy.infos = []
 
         firstChild = children[0]
         info = firstChild.Proxy.getInfo()

constraint.py

@@ -940,7 +940,7 @@ class BaseMulti(Base):
                 if not infos:
                     continue
                 info0 = firstInfo[idx]
-                partInfo0 = solver.getPartInfo(info0,infos)
+                partInfo0 = solver.getPartInfo(info0)
                 info = infos[0]
                 partInfo = solver.getPartInfo(info)
                 e0 = cls._entityDef[0](

solver.py

@@ -122,6 +122,8 @@ class Solver(object):
         touched = False
         updates = []
         for part,partInfo in self._partMap.items():
+            if partInfo.Update:
+                updates.append(partInfo)
             if part in self._fixedParts:
                 continue
             if utils.isDraftWire(part):
@@ -152,8 +154,6 @@ class Solver(object):
                     touched = True
                     part.Points = points
             else:
-                if partInfo.Update:
-                    updates.append(partInfo)
                 params = [self.system.getParam(h).val for h in partInfo.Params]
                 p = params[:3]
                 q = (params[4],params[5],params[6],params[3])