private bool Reify(ShapeNode currentShapeNode, GraphNode sourceNode1, GraphNode sourceNode2)
{
var sn1 = sourceNode1 as ShapeNode;
var sn2 = sourceNode2 as ShapeNode;
if (sn1 != null && sn2 != null)
{
var shapeSymbol1 = sn1.ShapeSymbol;
var shapeSymbol2 = sn2.ShapeSymbol;
var currentShape = currentShapeNode.ShapeSymbol;
return(RelationLogic.Reify(currentShape, shapeSymbol1, shapeSymbol2));
}
return(false);
}
public void Test_CreateLineSegment_3()
{
var x = new Var('x');
var point = new Point(2, x);
var ps = new PointSymbol(point);
var psNode = new ShapeNode(ps);
var point1 = new Point(3, 4);
var ps1 = new PointSymbol(point1);
var psNode1 = new ShapeNode(ps1);
object obj;
bool value = RelationLogic.ConstraintCheck(psNode, psNode1, null, ShapeType.LineSegment, out obj);
Assert.True(value);
var lss = obj as LineSegmentSymbol;
Assert.NotNull(lss);
Assert.False(lss.Shape.Concrete);
}
private static bool ConstraintCheck(ShapeNode shapeNode1, ShapeNode shapeNode2,
string constraint1, ShapeType constraint2, out object output)
{
output = null;
var shape1 = shapeNode1.ShapeSymbol;
var shape2 = shapeNode2.ShapeSymbol;
Debug.Assert(shape1 != null);
Debug.Assert(shape2 != null);
var pt1 = shape1 as PointSymbol;
var pt2 = shape2 as PointSymbol;
if (pt1 != null && pt2 != null)
{
return(ConstraintCheck(pt1, pt2, constraint1, constraint2, out output));
}
return(false);
}
public void Test_Unify_2()
{
//true positive
var x = new Var('x');
var point = new Point(x, 4);
var ps = new PointSymbol(point);
var shapeNode = new ShapeNode(ps);
var point1 = new Point(4, 5);
var ps1 = new PointSymbol(point1);
var shapeNode1 = new ShapeNode(ps1);
var eqGoal = new EqGoal(x, 9);
object obj;
bool result = RelationLogic.ConstraintCheck(shapeNode, shapeNode1, eqGoal, null, out obj);
Assert.False(result);
}
public void Test_Unify_2()
{
//true positive
var x = new Var('x');
var point = new Point(x, 4);
var ps = new PointSymbol(point);
var shapeNode = new ShapeNode(ps);
var point1 = new Point(4, 5);
var ps1 = new PointSymbol(point1);
var shapeNode1 = new ShapeNode(ps1);
var eqGoal = new EqGoal(x, 9);
object obj;
bool result = RelationLogic.ConstraintCheck(shapeNode, shapeNode1, eqGoal, null, out obj);
Assert.False(result);
}
public void Test_CreateLine_6()
{
var point = new Point(-1, 2);
var ps = new PointSymbol(point);
var psNode = new ShapeNode(ps);
var point1 = new Point(5, 8);
var ps1 = new PointSymbol(point1);
var psNode1 = new ShapeNode(ps1);
object obj;
bool value = RelationLogic.ConstraintCheck(psNode, psNode1, null, ShapeType.Line, out obj);
Assert.True(value);
var ls = obj as LineSymbol;
Assert.NotNull(ls);
Assert.True(ls.Shape.Concrete);
Assert.True(ls.ToString().Equals("x-y+3=0"));
}
public void Test_CreateLine_7()
{
var m = new Var("m");
var eqGoal = new EqGoal(m, 1);
var goalNode = new GoalNode(eqGoal);
var point1 = new Point(5, 8);
var ps1 = new PointSymbol(point1);
var psNode1 = new ShapeNode(ps1);
object obj;
bool value = RelationLogic.ConstraintCheck(psNode1, goalNode, "lineG", null, out obj);
Assert.True(value);
var ls = obj as LineSymbol;
Assert.NotNull(ls);
Assert.True(ls.Shape.Concrete);
Assert.True(ls.ToString().Equals("x-y+3=0"));
}
public void Test_CreateLine_5()
{
var x = new Var('x');
var point = new Point(2, x);
var ps = new PointSymbol(point);
var psNode = new ShapeNode(ps);
var point1 = new Point(3, 4);
var ps1 = new PointSymbol(point1);
var psNode1 = new ShapeNode(ps1);
object obj;
bool value = RelationLogic.ConstraintCheck(psNode, psNode1, null, ShapeType.Line, out obj);
Assert.True(value);
var ls = obj as LineSymbol;
Assert.NotNull(ls);
Assert.False(ls.Shape.Concrete);
}
private void UnReify(ShapeNode shapeNode)
{
foreach (GraphEdge ge in shapeNode.OutEdges)
{
var upperNode = ge.Target as ShapeNode;
if (upperNode == null)
{
continue;
}
var lstSource = InEdgeNodes(upperNode);
if (lstSource.Count != 2)
{
continue;
}
if (Reify(upperNode, lstSource[0], lstSource[1]))
{
UnReify(upperNode); //depth first search
}
}
}
private ShapeNode AddShapeNode(ShapeSymbol shape)
{
//1. build relation using geometry constraint-solving (synthesize new node) (Top-Down)
object relations;
ConstraintSatisfy(shape, out relations);
List <object> goalRels;
ShapeNode shapeNode = CreateShapeNode(shape, relations, out goalRels);
//Search bottom up goalNodes, start reify
foreach (object obj in goalRels)
{
var goalNode = obj as GoalNode;
if (goalNode == null)
{
continue;
}
Reify(goalNode);
}
return(shapeNode);
}
/// <summary>
/// e.g given y = 2x + 1, ask: m = ?
/// </summary>
/// <param name="sn"></param>
/// <param name="constraint"></param>
/// <param name="output"></param>
/// <returns></returns>
private static bool ConstraintCheck(ShapeNode sn, object constraint, out object output)
{
output = null;
var label = constraint as string;
if (label != null) //Query
{
return sn.ShapeSymbol.UnifyProperty(label, out output);
}
var goal = constraint as EqGoal;
if (goal != null) //Match
{
bool matched = sn.ShapeSymbol.UnifyExplicitProperty(goal);
if (matched)
{
output = new Tuple<object, object>(goal,sn);
return true;
}
}
return false;
}
/// <summary>
/// e.g given y = 2x + 1, ask: m = ?
/// </summary>
/// <param name="sn"></param>
/// <param name="constraint"></param>
/// <param name="output"></param>
/// <returns></returns>
private static bool ConstraintCheck(ShapeNode sn, object constraint, out object output)
{
output = null;
var label = constraint as string;
if (label != null) //Query
{
return(sn.ShapeSymbol.UnifyProperty(label, out output));
}
var goal = constraint as EqGoal;
if (goal != null) //Match
{
bool matched = sn.ShapeSymbol.UnifyExplicitProperty(goal);
if (matched)
{
output = new Tuple <object, object>(goal, sn);
return(true);
}
}
return(false);
}
public void Test_Unify_1()
{
//true positive
var x = new Var('x');
var y = new Var('y');
var point = new Point(x, y);
var ps = new PointSymbol(point);
var shapeNode = new ShapeNode(ps);
var eqGoal = new EqGoal(x, 1); // x=1
object obj;
bool result = RelationLogic.ConstraintCheck(shapeNode, eqGoal, null, out obj);
Assert.True(result);
Assert.NotNull(obj);
/* var lst = obj as Tuple<object, object>;
Assert.NotNull(lst);
Assert.True(lst.Count == 1);
var tuple = lst[0];
Assert.True(tuple.Item1.Equals(shapeNode));
Assert.True(tuple.Item2.Equals(eqGoal));*/
}
public void Test_Unify_1()
{
//true positive
var x = new Var('x');
var y = new Var('y');
var point = new Point(x, y);
var ps = new PointSymbol(point);
var shapeNode = new ShapeNode(ps);
var eqGoal = new EqGoal(x, 1); // x=1
object obj;
bool result = RelationLogic.ConstraintCheck(shapeNode, eqGoal, null, out obj);
Assert.True(result);
Assert.NotNull(obj);
/* var lst = obj as Tuple<object, object>;
* Assert.NotNull(lst);
* Assert.True(lst.Count == 1);
* var tuple = lst[0];
* Assert.True(tuple.Item1.Equals(shapeNode));
* Assert.True(tuple.Item2.Equals(eqGoal));*/
}
public void Test_CreateLine_7()
{
var m = new Var("m");
var eqGoal = new EqGoal(m, 1);
var goalNode = new GoalNode(eqGoal);
var point1 = new Point(5, 8);
var ps1 = new PointSymbol(point1);
var psNode1 = new ShapeNode(ps1);
object obj;
bool value = RelationLogic.ConstraintCheck(psNode1, goalNode, "lineG", null, out obj);
Assert.True(value);
var ls = obj as LineSymbol;
Assert.NotNull(ls);
Assert.True(ls.Shape.Concrete);
Assert.True(ls.ToString().Equals("x-y+3=0"));
}
public void Test_CreateLine_6()
{
var point = new Point(-1, 2);
var ps = new PointSymbol(point);
var psNode = new ShapeNode(ps);
var point1 = new Point(5, 8);
var ps1 = new PointSymbol(point1);
var psNode1 = new ShapeNode(ps1);
object obj;
bool value = RelationLogic.ConstraintCheck(psNode, psNode1, null, ShapeType.Line, out obj);
Assert.True(value);
var ls = obj as LineSymbol;
Assert.NotNull(ls);
Assert.True(ls.Shape.Concrete);
Assert.True(ls.ToString().Equals("x-y+3=0"));
}
private QueryNode CreateQueryNode(Query query, object obj)
{
var queryNode = new QueryNode(query);
var dict = obj as Dictionary <object, object>;
if (dict == null)
{
return(queryNode);
}
#region Unary and Binary Relation
foreach (KeyValuePair <object, object> pair in dict)
{
var unaryNode = pair.Key as GraphNode;
var binaryNode = pair.Key as Tuple <GraphNode, GraphNode>;
var uunaryNode = pair.Key as List <GraphNode>;
if (unaryNode != null)
{
#region Unary Node
var eqGoal = pair.Value as EqGoal;
var shapeSymbol = pair.Value as ShapeSymbol;
if (eqGoal != null)
{
var gGoalNode = new GoalNode(eqGoal);
queryNode.InternalNodes.Add(gGoalNode);
CreateEdge(unaryNode, gGoalNode);
continue;
}
if (shapeSymbol != null)
{
var gShapeNode = new ShapeNode(shapeSymbol);
queryNode.InternalNodes.Add(gShapeNode);
var sourceNode = pair.Key;
Debug.Assert(sourceNode != null);
CreateEdge(unaryNode, gShapeNode);
continue;
}
#endregion
}
if (binaryNode != null)
{
#region Binary Node
var gShape = pair.Value as ShapeSymbol;
if (gShape != null)
{
var shapeNode = new ShapeNode(gShape);
queryNode.InternalNodes.Add(shapeNode);
var sourceNode1 = binaryNode.Item1;
var sourceNode2 = binaryNode.Item2;
Debug.Assert(sourceNode1 != null);
Debug.Assert(sourceNode2 != null);
CreateEdge(sourceNode1, shapeNode);
CreateEdge(sourceNode2, shapeNode);
}
var gGoal = pair.Value as EqGoal;
if (gGoal != null)
{
var goalNode = new GoalNode(gGoal);
queryNode.InternalNodes.Add(goalNode);
var sourceNode1 = binaryNode.Item1;
var sourceNode2 = binaryNode.Item2;
Debug.Assert(sourceNode1 != null);
Debug.Assert(sourceNode2 != null);
CreateEdge(sourceNode1, goalNode);
CreateEdge(sourceNode2, goalNode);
}
#endregion
}
var findNode = SearchNode(pair.Key);
if (findNode != null)
{
#region Find Node
var eqGoal = pair.Value as EqGoal;
var shapeSymbol = pair.Value as ShapeSymbol;
if (eqGoal != null)
{
var gGoalNode = new GoalNode(eqGoal);
queryNode.InternalNodes.Add(gGoalNode);
CreateEdge(findNode, gGoalNode);
continue;
}
if (shapeSymbol != null)
{
var gShapeNode = new ShapeNode(shapeSymbol);
queryNode.InternalNodes.Add(gShapeNode);
var sourceNode = pair.Key;
Debug.Assert(sourceNode != null);
CreateEdge(findNode, gShapeNode);
continue;
}
#endregion
}
var findNodeInCurrentqQuery = queryNode.SearchInternalNode(pair.Key);
if (findNodeInCurrentqQuery != null)
{
#region Find Node
var eqGoal = pair.Value as EqGoal;
var shapeSymbol = pair.Value as ShapeSymbol;
if (eqGoal != null)
{
var gGoalNode = new GoalNode(eqGoal);
queryNode.InternalNodes.Add(gGoalNode);
CreateEdge(findNodeInCurrentqQuery, gGoalNode);
continue;
}
if (shapeSymbol != null)
{
var gShapeNode = new ShapeNode(shapeSymbol);
queryNode.InternalNodes.Add(gShapeNode);
var sourceNode = pair.Key;
Debug.Assert(sourceNode != null);
CreateEdge(findNodeInCurrentqQuery, gShapeNode);
continue;
}
#endregion
}
if (uunaryNode != null)
{
var equation = pair.Value as Equation;
var eqNode = new EquationNode(equation);
queryNode.InternalNodes.Add(eqNode);
foreach (GraphNode gn in uunaryNode)
{
CreateEdge(gn, eqNode);
}
}
}
#endregion
return(queryNode);
}
private static bool ConstraintCheck(ShapeNode sn, object constraint1, object constraint2, out object output)
{
output = null;
return(false);
}
private static bool ConstraintCheck(ShapeNode shapeNode, GoalNode goalNode,
string constraint1, ShapeType constraint2, out object output)
{
output = null;
//TODO
return false;
}
private static bool ConstraintCheck(ShapeNode shapeNode1, ShapeNode shapeNode2,
string constraint1, ShapeType constraint2, out object output)
{
output = null;
var shape1 = shapeNode1.ShapeSymbol;
var shape2 = shapeNode2.ShapeSymbol;
Debug.Assert(shape1 != null);
Debug.Assert(shape2 != null);
var pt1 = shape1 as PointSymbol;
var pt2 = shape2 as PointSymbol;
if (pt1 != null && pt2 != null) return ConstraintCheck(pt1, pt2, constraint1, constraint2, out output);
return false;
}
private static bool ConstraintCheck(ShapeNode shapeNode1, ShapeNode shapeNode2,
object constraint, out object output)
{
output = null;
var shape1 = shapeNode1.ShapeSymbol;
var shape2 = shapeNode2.ShapeSymbol;
Debug.Assert(shape1 != null);
Debug.Assert(shape2 != null);
var pt1 = shape1 as PointSymbol;
var pt2 = shape2 as PointSymbol;
if (pt1 != null && pt2 != null)
{
bool result = ConstraintCheck(pt1, pt2, constraint, out output);
if (!result) return false;
var label = constraint as string;
var goal = constraint as EqGoal;
if (goal != null)
{
var lstTuple = new List<Tuple<object, object>>();
#region Goal Oriented
var source2 = new Tuple<object, object>(shapeNode1, shapeNode2);
var tuple1 = new Tuple<object, object>(source2, constraint);
lstTuple.Add(tuple1);
var lst = output as List<object>;
if (lst != null)
{
foreach (EqGoal synGoal in lst)
{
var tempTuple = new Tuple<object, object>(constraint, synGoal);
lstTuple.Add(tempTuple);
}
}
output = lstTuple;
return lstTuple.Count != 0;
#endregion
}
if (label != null)
{
var lst = output as List<object>;
if (lst != null && lst.Count == 1)
{
output = lst[0];
}
}
return true;
}
return false;
}
private static bool ConstraintCheck(ShapeNode shapeNode, GoalNode goalNode,
object constraint, out object output)
{
output = null;
var shape1 = shapeNode.ShapeSymbol;
var goal = goalNode.Goal as EqGoal;
Debug.Assert(shape1 != null);
Debug.Assert(goal!= null);
var label = constraint as string;
if (label != null)
{
var pt1 = shape1 as PointSymbol;
if (pt1 != null)
{
if (LineAcronym.EqualGeneralFormLabels(label))
{
var ls = LineBinaryRelation.Unify(pt1, goal);
if (ls != null)
{
ls.OutputType = LineType.GeneralForm;
output = ls;
return true;
}
}
}
}
//TODO
return false;
}
private void UnReify(ShapeNode shapeNode)
{
foreach (GraphEdge ge in shapeNode.OutEdges)
{
var upperNode = ge.Target as ShapeNode;
if (upperNode == null) continue;
var lstSource = InEdgeNodes(upperNode);
if (lstSource.Count != 2) continue;
if (Reify(upperNode, lstSource[0], lstSource[1]))
{
UnReify(upperNode); //depth first search
}
}
}
private QueryNode CreateQueryNode(Query query, object obj)
{
var queryNode = new QueryNode(query);
var dict = obj as Dictionary<object, object>;
if (dict == null) return queryNode;
#region Unary and Binary Relation
foreach (KeyValuePair<object, object> pair in dict)
{
var unaryNode = pair.Key as GraphNode;
var binaryNode = pair.Key as Tuple<GraphNode, GraphNode>;
var uunaryNode = pair.Key as List<GraphNode>;
if (unaryNode != null)
{
#region Unary Node
var eqGoal = pair.Value as EqGoal;
var shapeSymbol = pair.Value as ShapeSymbol;
if (eqGoal != null)
{
var gGoalNode = new GoalNode(eqGoal);
queryNode.InternalNodes.Add(gGoalNode);
CreateEdge(unaryNode, gGoalNode);
continue;
}
if (shapeSymbol != null)
{
var gShapeNode = new ShapeNode(shapeSymbol);
queryNode.InternalNodes.Add(gShapeNode);
var sourceNode = pair.Key;
Debug.Assert(sourceNode != null);
CreateEdge(unaryNode, gShapeNode);
continue;
}
#endregion
}
if (binaryNode != null)
{
#region Binary Node
var gShape = pair.Value as ShapeSymbol;
if (gShape != null)
{
var shapeNode = new ShapeNode(gShape);
queryNode.InternalNodes.Add(shapeNode);
var sourceNode1 = binaryNode.Item1;
var sourceNode2 = binaryNode.Item2;
Debug.Assert(sourceNode1 != null);
Debug.Assert(sourceNode2 != null);
CreateEdge(sourceNode1, shapeNode);
CreateEdge(sourceNode2, shapeNode);
}
var gGoal = pair.Value as EqGoal;
if (gGoal != null)
{
var goalNode = new GoalNode(gGoal);
queryNode.InternalNodes.Add(goalNode);
var sourceNode1 = binaryNode.Item1;
var sourceNode2 = binaryNode.Item2;
Debug.Assert(sourceNode1 != null);
Debug.Assert(sourceNode2 != null);
CreateEdge(sourceNode1, goalNode);
CreateEdge(sourceNode2, goalNode);
}
#endregion
}
var findNode = SearchNode(pair.Key);
if (findNode != null)
{
#region Find Node
var eqGoal = pair.Value as EqGoal;
var shapeSymbol = pair.Value as ShapeSymbol;
if (eqGoal != null)
{
var gGoalNode = new GoalNode(eqGoal);
queryNode.InternalNodes.Add(gGoalNode);
CreateEdge(findNode, gGoalNode);
continue;
}
if (shapeSymbol != null)
{
var gShapeNode = new ShapeNode(shapeSymbol);
queryNode.InternalNodes.Add(gShapeNode);
var sourceNode = pair.Key;
Debug.Assert(sourceNode != null);
CreateEdge(findNode, gShapeNode);
continue;
}
#endregion
}
var findNodeInCurrentqQuery = queryNode.SearchInternalNode(pair.Key);
if (findNodeInCurrentqQuery != null)
{
#region Find Node
var eqGoal = pair.Value as EqGoal;
var shapeSymbol = pair.Value as ShapeSymbol;
if (eqGoal != null)
{
var gGoalNode = new GoalNode(eqGoal);
queryNode.InternalNodes.Add(gGoalNode);
CreateEdge(findNodeInCurrentqQuery, gGoalNode);
continue;
}
if (shapeSymbol != null)
{
var gShapeNode = new ShapeNode(shapeSymbol);
queryNode.InternalNodes.Add(gShapeNode);
var sourceNode = pair.Key;
Debug.Assert(sourceNode != null);
CreateEdge(findNodeInCurrentqQuery, gShapeNode);
continue;
}
#endregion
}
if (uunaryNode != null)
{
var equation = pair.Value as Equation;
var eqNode = new EquationNode(equation);
queryNode.InternalNodes.Add(eqNode);
foreach (GraphNode gn in uunaryNode)
{
CreateEdge(gn, eqNode);
}
}
}
#endregion
return queryNode;
}
private bool Reify(ShapeNode currentShapeNode, GraphNode sourceNode1, GraphNode sourceNode2)
{
var sn1 = sourceNode1 as ShapeNode;
var sn2 = sourceNode2 as ShapeNode;
if (sn1 != null && sn2 != null)
{
var shapeSymbol1 = sn1.ShapeSymbol;
var shapeSymbol2 = sn2.ShapeSymbol;
var currentShape = currentShapeNode.ShapeSymbol;
return RelationLogic.Reify(currentShape, shapeSymbol1, shapeSymbol2);
}
return false;
}
private void Reify(ShapeNode shapeNode, GraphNode rootNode)
{
foreach (GraphEdge ge in shapeNode.OutEdges)
{
var upperNode = ge.Target;
if (upperNode.Equals(rootNode)) return;
if (upperNode.Synthesized) return;
#region Target Node Analysis
var upperShapeNode = upperNode as ShapeNode;
if (upperShapeNode != null)
{
var lstSource = InEdgeNodes(upperShapeNode);
if (lstSource.Count == 2)
{
Reify(upperShapeNode, lstSource[0], lstSource[1]);
}
}
#endregion
Reify(upperNode, rootNode); //depth first search
}
}
private ShapeNode CreateShapeNode(ShapeSymbol ss, object obj, out List<object> relGoals)
{
var gn = new ShapeNode(ss);
relGoals = new List<object>();
var lst = obj as List<Tuple<object, object>>;
if (lst == null) return gn;
foreach (var tuple in lst)
{
if (tuple.Item1.Equals(ss))
{
BuildRelation(gn, tuple.Item2);
relGoals.Add(tuple.Item2);
}
if (tuple.Item2.Equals(ss))
{
BuildRelation(tuple.Item1, gn);
relGoals.Add(tuple.Item1);
}
}
_nodes.Add(gn);
return gn;
}
private static bool ConstraintCheck(ShapeNode sn, object constraint1, object constraint2, out object output)
{
output = null;
return false;
}
