source: branches/HeuristicLab.Problems.GrammaticalOptimization/DynamicDataDisplay/Charts/Shapes/VerticalLine.cs @ 13398

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Media;
using System.Diagnostics;

namespace Microsoft.Research.DynamicDataDisplay.Charts
{
  /// <summary>
  /// Represents an infinite vertical line with x viewport coordinate.
  /// </summary>
  public sealed class VerticalLine : SimpleLine
  {
    /// <summary>
    /// Initializes a new instance of the <see cref="VerticalLine"/> class.
    /// </summary>
    public VerticalLine() { }

    /// <summary>
    /// Initializes a new instance of the <see cref="VerticalLine"/> class with specified x coordinate.
    /// </summary>
    /// <param name="xCoordinate">The x coordinate.</param>
    public VerticalLine(double xCoordinate)
    {
      Value = xCoordinate;
    }

    protected override void UpdateUIRepresentationCore()
    {
      var transform = Plotter.Viewport.Transform;

      Point p1 = new Point(Value, Plotter.Viewport.Visible.YMin).DataToScreen(transform);
      Point p2 = new Point(Value, Plotter.Viewport.Visible.YMax).DataToScreen(transform);

      LineGeometry.StartPoint = p1;
      LineGeometry.EndPoint = p2;
    }
  }
}