private void draw(IsovistEscapeRoutes escapeRoutes)
{
this._escapeRoutes.Add(escapeRoutes);
double scale = this.getScaleFactor();
Point p1 = new Point(), p2 = new Point();
DrawingVisual drawingVisual = new DrawingVisual();
using (DrawingContext drawingContext = drawingVisual.RenderOpen())
{
Pen pen = new Pen(this._fillBrush, this._host.cellularFloor.CellSize);
foreach (Cell item in escapeRoutes.EscapeRoutes)
{
p1.X = item.U;
p1.Y = item.V + this._host.cellularFloor.CellSize / 2;
p2.X = item.U + this._host.cellularFloor.CellSize;
p2.Y = item.V + this._host.cellularFloor.CellSize / 2;
drawingContext.DrawLine(pen, p1, p2);
}
pen = new Pen(this._centerBrush, this._host.cellularFloor.CellSize);
p1.X = escapeRoutes.VantageCell.U;
p1.Y = escapeRoutes.VantageCell.V + this._host.cellularFloor.CellSize / 2;
p2.X = escapeRoutes.VantageCell.U + this._host.cellularFloor.CellSize;
p2.Y = escapeRoutes.VantageCell.V + this._host.cellularFloor.CellSize / 2;
drawingContext.DrawLine(pen, p1, p2);
}
drawingVisual.Drawing.Freeze();
this._children.Add(drawingVisual);
}
private void getEscapeRoute_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
var point = this._host.InverseRenderTransform.Transform(Mouse.GetPosition(this._host.FloorScene));
UV p = new UV(point.X, point.Y);
Cell cell = this._host.cellularFloor.FindCell(p);
if (cell == null)
{
MessageBox.Show("Pick a point on the walkable field and try again!\n");
return;
}
switch (this._host.IsovistBarrierType)
{
case BarrierType.Visual:
if (cell.VisualOverlapState != OverlapState.Outside)
{
MessageBox.Show("Pick a point outside visual barriers.\nTry again!");
return;
}
break;
case BarrierType.Physical:
if (cell.PhysicalOverlapState != OverlapState.Outside)
{
MessageBox.Show("Pick a point outside physical barriers.\nTry again!");
return;
}
break;
case BarrierType.Field:
if (cell.FieldOverlapState != OverlapState.Inside)
{
MessageBox.Show("Pick a point inside the walkable field.\nTry again!");
return;
}
break;
case BarrierType.BarrierBuffer:
if (cell.BarrierBufferOverlapState != OverlapState.Outside)
{
MessageBox.Show("Pick a point outside barrier buffers.\nTry again!");
return;
}
break;
default:
break;
}
try
{
IsovistEscapeRoutes escapeRoutes = null;
switch (this._escapeRouteType)
{
case EscapeRouteType.All:
escapeRoutes = CellularIsovistCalculator.GetAllEscapeRoute(p, this._host.IsovistDepth,
this._host.IsovistBarrierType, this._host.cellularFloor);
this._children.Clear();
this._edges.Clear();
this._escapeRoutes.Clear();
this.draw(escapeRoutes);
break;
case EscapeRouteType.WeightedAndSimplified:
escapeRoutes = CellularIsovistCalculator.GetWeightedSimplifiedEscapeRoute(p,
this._host.AgentIsovistExternalDepth,
this._host.IsovistBarrierType, this._host.cellularFloor, this._staticCosts,
this._host.MaximumNumberOfDestinations);
this._children.Clear();
this._edges.Clear();
this._escapeRoutes.Clear();
this.draw(escapeRoutes);
break;
default:
break;
}
}
catch (Exception error1)
{
this._host.IsovistInformation = null;
MessageBox.Show(error1.Report());
}
}
