public void AddRelation(Vertex v, RelationType r, double angle)
{
List <Edge> e2 = new List <Edge>();
foreach (Edge e in edges)
{
if (e.A == v || e.B == v)
{
e2.Add(e);
}
}
if (!CanAddRelation(e2[0], r) || !CanAddRelation(e2[1], r))
{
MessageBox.Show("Cannot add relation", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
Vertex v2 = e2[1].A == v ? e2[1].B : e2[1].A;
Point w2 = new Point(v2.X - v.X, v2.Y - v.Y);
double prevAngle = GetAngle(v);
double dAngle = -(angle - prevAngle);
double radians = (Math.PI / 180f) * dAngle;
Point newW = new Point((int)(w2.X * Math.Cos(radians) - w2.Y * Math.Sin(radians)), (int)(w2.X * Math.Sin(radians) + w2.Y * Math.Cos(radians)));
int dx = (newW.X + v.X) - v2.X;
int dy = (newW.Y + v.Y) - v2.Y;
int oldv2X = v2.X;
int oldV2Y = v2.Y;
v2.X = newW.X + v.X;
v2.Y = newW.Y + v.Y;
double newAngle = GetAngle(v);
if (newAngle > angle + 5 || newAngle < angle - 5)
{
v2.X = oldv2X;
v2.Y = oldV2Y;
dAngle = -dAngle;
radians = (Math.PI / 180f) * dAngle;
newW = new Point((int)(w2.X * Math.Cos(radians) - w2.Y * Math.Sin(radians)), (int)(w2.X * Math.Sin(radians) + w2.Y * Math.Cos(radians)));
dx = (newW.X + v.X) - v2.X;
dy = (newW.Y + v.Y) - v2.Y;
v2.X = newW.X + v.X;
v2.Y = newW.Y + v.Y;
}
AngleRelation angleR = new AngleRelation(e2[0], e2[1]);
FixRelation(v2, dx, dy, new List <Relation>());
e2[0].RelationTypeE = RelationType.Angle;
e2[1].RelationTypeE = RelationType.Angle;
e2[0].W = v;
e2[1].W = v;
relations.Add(angleR);
}
public void MoveEdge(Edge e, int dx, int dy)
{
if (!edges.Contains(e))
{
return;
}
List <Relation> rel = GetEdgeRelations(e, relations);
if (rel.Count != 0 && rel[0] is AngleRelation)
{
AngleRelation angleRel = (AngleRelation)rel[0];
Vertex[] changedV = angleRel.MoveEdge(e, dx, dy);
foreach (Vertex v in changedV)
{
FixRelation(v, dx, dy, new List <Relation>()
{
rel[0]
});
}
return;
}
e.A.ChangeLocation(dx, dy);
e.B.ChangeLocation(dx, dy);
FixRelation(e.A, dx, dy, new List <Relation>());
FixRelation(e.B, dx, dy, new List <Relation>());
}