private void draw(Isovist isovist)
{
this._children.Clear();
this._edges.Clear();
this._escapeRoutes.Clear();
var boundaries = isovist.GetBoundary(this._host.cellularFloor);
this._edges.Add(isovist.VantageCell, boundaries);
double scale = this.getScaleFactor();
Point p1 = new Point(), p2 = new Point();
DrawingVisual drawingVisual = new DrawingVisual();
using (DrawingContext drawingContext = drawingVisual.RenderOpen())
{
StreamGeometry sg = new StreamGeometry();
using (StreamGeometryContext sgc = sg.Open())
{
foreach (BarrierPolygon item in boundaries)
{
sgc.BeginFigure(new Point(item.BoundaryPoints[0].U, item.BoundaryPoints[0].V), true, true);
foreach (var uv in item.BoundaryPoints)
{
sgc.LineTo(new Point(uv.U, uv.V), true, true);
}
}
}
drawingContext.DrawGeometry(this._fillBrush, null, sg);
Pen pen = new Pen(this._centerBrush, this._host.cellularFloor.CellSize);
p1.X = isovist.VantageCell.U;
p1.Y = isovist.VantageCell.V + this._host.cellularFloor.CellSize / 2;
p2.X = isovist.VantageCell.U + this._host.cellularFloor.CellSize;
p2.Y = isovist.VantageCell.V + this._host.cellularFloor.CellSize / 2;
drawingContext.DrawLine(pen, p1, p2);
}
drawingVisual.Drawing.Freeze();
this._children.Add(drawingVisual);
}
private void drawInRevit()
{
this._host.Hide();
UV p = this._host.OSM_to_BIM.PickPoint("Pick a vantage point to draw cellular Isovist");
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!");
this._host.ShowDialog();
return;
}
break;
case BarrierType.Physical:
if (cell.PhysicalOverlapState != OverlapState.Outside)
{
MessageBox.Show("Pick a point outside physical barriers.\nTry again!");
this._host.ShowDialog();
return;
}
break;
case BarrierType.Field:
if (cell.FieldOverlapState != OverlapState.Inside)
{
MessageBox.Show("Pick a point inside the walkable field.\nTry again!");
this._host.ShowDialog();
return;
}
break;
case BarrierType.BarrierBuffer:
if (cell.BarrierBufferOverlapState != OverlapState.Outside)
{
MessageBox.Show("Pick a point outside barrier buffers.\nTry again!");
this._host.ShowDialog();
return;
}
break;
default:
break;
}
Isovist isovist = null;
var timer = new System.Diagnostics.Stopwatch();
try
{
timer.Start();
isovist = CellularIsovistCalculator.GetIsovist(p, this._host.IsovistDepth, this._host.IsovistBarrierType, this._host.cellularFloor);
timer.Stop();
this._host.IsovistInformation = new IsovistInformation(IsovistInformation.IsovistType.Cellular,
timer.Elapsed.TotalMilliseconds, isovist.GetArea(this._host.cellularFloor.CellSize), double.NaN);
}
catch (Exception error0)
{
this._host.IsovistInformation = null;
MessageBox.Show(error0.Report());
}
timer = null;
if (isovist != null)
{
try
{
var boundaries = isovist.GetBoundary(this._host.cellularFloor);
double elevation = this._host.BIM_To_OSM.PlanElevation;
foreach (var item in boundaries)
{
this._host.OSM_to_BIM.VisualizePolygon(item.BoundaryPoints, elevation);
}
}
catch (Exception error1)
{
MessageBox.Show(error1.Report());
}
}
this._host.ShowDialog();
}
