/// <summary>
/// Updates the polygon.
/// </summary>
/// <param name="updatedPoints">The Updated Points</param>
/// <param name="interior">The Interior</param>
/// <param name="visibility">The Visibility</param>
internal void Update(Vector3D[] updatedPoints, Brush interior, Visibility visibility)
{
VectorPoints = updatedPoints;
var segmentPath = Element as Path;
if (segmentPath == null)
{
return;
}
segmentPath.Visibility = visibility;
if (Graphics3D == null)
{
return;
}
var transform = Graphics3D.Transform;
var figure = new PathFigure();
var segmentGeometry = new PathGeometry();
var actualBrush = (Fill is SolidColorBrush) ?
((SolidColorBrush)Fill).Color :
((Fill is LinearGradientBrush) && ((LinearGradientBrush)Fill).GradientStops.Count > 0) ?
((LinearGradientBrush)Fill).GradientStops[0].Color :
new SolidColorBrush(Colors.Transparent).Color;
if (transform != null)
{
figure.StartPoint = transform.ToScreen(VectorPoints[0]);
foreach (var lineSegment in VectorPoints.Select(item => new WindowsLineSegment {
Point = transform.ToScreen(item)
}))
{
figure.Segments.Add(lineSegment);
}
}
segmentGeometry.Figures.Add(figure);
var lightCoefZ = (int)(2 * (Math.Abs(normal & new Vector3D(0, 0, 1)) - 1));
var lightCoefY = (int)(2 * (Math.Abs(normal & new Vector3D(0, 1, 0)) - 1));
var lightCoefX = (int)(2 * (Math.Abs(normal & new Vector3D(1, 0, 0)) - 1));
if (lightCoefZ == lightCoefX && interior != null)
{
segmentPath.Fill = ApplyZLight(actualBrush);
}
else if (((lightCoefY == lightCoefZ) || (lightCoefZ != 0 && lightCoefY < lightCoefZ)) &&
!(Tag is LineSegment3D) && !(Tag is AreaSegment3D) && interior != null)
{
segmentPath.Fill = Polygon3D.ApplyXLight(actualBrush);
}
else if (lightCoefZ < 0 && interior != null)
{
segmentPath.Fill = ApplyZLight(actualBrush);
}
else
{
segmentPath.Fill = interior;
}
segmentPath.Data = segmentGeometry;
}
/// <summary>
/// Redraws the segments.
/// </summary>
internal void ReDraw()
{
if (VectorPoints == null || VectorPoints.Length <= 0)
{
return;
}
var transform = Graphics3D.Transform;
var segmentPath = Element as Path;
if (segmentPath == null)
{
return;
}
var figure = new PathFigure();
var segmentGeometry = new PathGeometry();
if (transform != null)
{
figure.StartPoint = transform.ToScreen(VectorPoints[0]);
foreach (var lineSegment in VectorPoints.Select(item => new WindowsLineSegment {
Point = transform.ToScreen(item)
}))
{
figure.Segments.Add(lineSegment);
}
}
segmentGeometry.Figures.Add(figure);
segmentPath.Data = segmentGeometry;
var lightCoefZ = (int)(2 * (Math.Abs(normal & new Vector3D(0, 0, 1)) - 1));
var lightCoefY = (int)(2 * (Math.Abs(normal & new Vector3D(0, 1, 0)) - 1));
var lightCoefX = (int)(2 * (Math.Abs(normal & new Vector3D(1, 0, 0)) - 1));
var actualBrush = (Fill is SolidColorBrush) ?
((SolidColorBrush)Fill).Color :
((Fill is LinearGradientBrush) && ((LinearGradientBrush)Fill).GradientStops.Count > 0) ?
((LinearGradientBrush)Fill).GradientStops[0].Color :
new SolidColorBrush(Colors.Transparent).Color;
if (lightCoefZ == lightCoefX && Fill != null)
{
segmentPath.Fill = ApplyZLight(actualBrush);
}
else if (((lightCoefY == lightCoefZ) || (lightCoefZ != 0 && lightCoefY < lightCoefZ)) &&
!(Tag is LineSegment3D) && !(Tag is AreaSegment3D) && !(Tag is PieSegment3D) && Fill != null)
{
segmentPath.Fill = Polygon3D.ApplyXLight(actualBrush);
}
else if (lightCoefZ < 0 && Fill != null)
{
segmentPath.Fill = ApplyZLight(actualBrush);
}
else
{
segmentPath.Fill = Fill;
}
segmentPath.StrokeThickness = strokeThickness;
segmentPath.Stroke = Stroke;
}