WPF GraphicsPath 를 PathGeometry 로 변환하기

WPF GraphicsPath 를 PathGeometry 로 변환하기

 

WPF GraphicsPath 를 PathGeometry 로 변환하는 코드입니다.

using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows;
using System.Windows.Media;
 

/// <summary>
/// Convert GraphicsPath To PathGeometry
/// </summary>
/// <param name="path">System.Drawing.Drawing2D.GraphicsPath</param>
/// <returns>System.Windows.Media.PathGeometry</returns>
public static PathGeometry ConvertGraphicsPathToPathGeometry(GraphicsPath path)
{
    List<PathFigure> pathFigureList = new List<PathFigure>();
 
    if (path.PointCount != 0)
    {
        PointF[] pathPoints = path.PathPoints;
        byte[] pathTypes = path.PathTypes;
        PathFigure pathFigure = new PathFigure();
        pathFigureList.Add(pathFigure);
        int index = 0;
        while (index < pathPoints.Length)
        {
            switch ((int)pathTypes[index] & 7)
            {
                case 0:
                    System.Windows.Point windowsPoint1 = new System.Windows.Point((double)pathPoints[index].X, (double)pathPoints[index].Y); ;
                    pathFigure.StartPoint = windowsPoint1;
                    ++index;
                    break;
                case 1:
                    System.Windows.Point windowsPoint2 = new System.Windows.Point((double)pathPoints[index].X, (double)pathPoints[index].Y);
                    pathFigure.Segments.Add((PathSegment)new LineSegment(windowsPoint2, true));
                    ++index;
                    break;
                case 3:
                    System.Windows.Point windowsPoint3 = new System.Windows.Point((double)pathPoints[index].X, (double)pathPoints[index].Y);
                    System.Windows.Point windowsPoint4 = new System.Windows.Point((double)pathPoints[index + 1].X, (double)pathPoints[index + 1].Y);
                    System.Windows.Point windowsPoint5 = new System.Windows.Point((double)pathPoints[index + 2].X, (double)pathPoints[index + 2].Y);
                    pathFigure.Segments.Add((PathSegment)new BezierSegment(windowsPoint3, windowsPoint4, windowsPoint5, true));
                    index += 3;
                    break;
            }
 
            if (((int)pathTypes[index - 1] & 128) != 0)
            {
                pathFigure.IsClosed = true;
                pathFigure = new PathFigure();
                pathFigureList.Add(pathFigure);
            }
        }
    }

    return new PathGeometry((IEnumerable<PathFigure>)pathFigureList) { FillRule = path.FillMode == FillMode.Alternate ? FillRule.EvenOdd : FillRule.Nonzero };
}

 

* 예시 코드는 진행했던 프로젝트에서 사용했던 것입니다.