private static void UpdateMainLinePos(EdgeDisplay display)
{
if (display.NegGradient)
{
display.edgeLine.X1 = display.XDiff;
display.edgeLine.X2 = 0.0;
display.edgeLine.Y1 = 0.0;
display.edgeLine.Y2 = display.YDiff;
}
else
{
display.edgeLine.X1 = 0.0;
display.edgeLine.X2 = display.XDiff;
display.edgeLine.Y1 = 0.0;
display.edgeLine.Y2 = display.YDiff;
}
}
private void OnMeshChanged(Mesh newMesh)
{
markedEdges.Clear();
undoTree = new UndoTree();
if (double.IsNaN(this.ActualHeight) || double.IsNaN(this.ActualWidth))
return;
UpdateScaleFactor(newMesh, new Size(this.ActualWidth, this.ActualHeight));
// RectangleGeometry rectGeo = new RectangleGeometry();
// rectGeo.Rect = new Rect(0.0, 0.0, this.ActualWidth, this.ActualHeight);
// this.Clip = rectGeo;
this.Children.Clear();
if (newMesh == null)
return;
for (int i = 0; i < newMesh.Edges.Count; i++)
{
Edge edge = newMesh.Edges[i];
float x1,x2,y1,y2;
newMesh.GetEdgeExtent(edge, out x1, out y1, out x2, out y2);
EdgeDisplay edgeDisplay = new EdgeDisplay();
edgeDisplay.XDiff = Math.Abs(x2 - x1)*scaleFactor;
edgeDisplay.Width = edgeDisplay.XDiff + 1;
edgeDisplay.YDiff = Math.Abs(y2 - y1) * scaleFactor;
edgeDisplay.Height = edgeDisplay.YDiff + 1;
edgeDisplay.EdgeState = edge.State;
edgeDisplay.EdgeColor = edge.Color;
edgeDisplay.Marked = markedEdges.Contains(i);
edgeDisplay.NegGradient = x1 == x2 ? false : (y2 - y1) / (x2 - x1) < 0;
edgeDisplay.SetValue(Canvas.TopProperty, Math.Min(y2, y1) * scaleFactor + yOffset);
edgeDisplay.SetValue(Canvas.LeftProperty, Math.Min(x2, x1) * scaleFactor + xOffset);
this.Children.Add(edgeDisplay);
}
for (int i = 0; i < newMesh.Intersections.Count; i++)
{
Intersection inters = newMesh.Intersections[i];
Ellipse ellipse = new Ellipse();
ellipse.Width = 4;
ellipse.Height = 4;
ellipse.SetValue(Canvas.TopProperty, inters.Y * scaleFactor + yOffset - ellipse.Height / 2.0);
ellipse.SetValue(Canvas.LeftProperty, inters.X * scaleFactor + xOffset - ellipse.Width / 2.0);
ellipse.Stroke = new SolidColorBrush(Colors.Black);
ellipse.Fill = new SolidColorBrush(Colors.Black);
ellipse.StrokeThickness = 1.0;
this.Children.Add(ellipse);
}
for (int i = 0; i < newMesh.Cells.Count; i++)
{
Cell cell = newMesh.Cells[i];
CellDisplay cellDisplay = new CellDisplay();
PointCollection points = new PointCollection();
for (int j = 0; j < cell.Intersections.Count; j++)
{
Intersection inters = newMesh.Intersections[cell.Intersections[j]];
points.Add(new Point(inters.X * scaleFactor + xOffset, inters.Y * scaleFactor + yOffset));
}
cellDisplay.Points = points;
cellDisplay.FontFamily = new FontFamily("Tahoma");
cellDisplay.FontSize = 18;
cellDisplay.CellColor = cell.Color;
cellDisplay.TargetCount = cell.TargetCount;
cellDisplay.Width = scaleFactor;
cellDisplay.Height = scaleFactor;
this.Children.Add(cellDisplay);
}
}