C# Geometry.GetFlattenedPathGeometry方法代码示例

        public PathGeometry FlattenGeometry(Geometry geoSrc, double tolerance)
        {
            // Return empty PathGeometry if geo is null
            if (geoSrc == null)
                return GetPathGeometry();

            #if !SILVERLIGHT
            // Let system flatten it if any part of the Geometry
            //      is a StreamGeometry of CombinedGeometry
            if (HasEmbeddedStreamGeometryOrCombinedGeometry(geoSrc))
                return geoSrc.GetFlattenedPathGeometry(tolerance, ToleranceType.Absolute);
            #endif
            PathGeometry pathGeoDst = GetPathGeometry();
            FlattenGeometry(pathGeoDst, geoSrc, tolerance, Matrix.Identity);

            return pathGeoDst;
        }

 ///<summary>
 /// Converts a <see cref="WpfGeometry"/> to a Geometry, flattening it first.
 ///</summary>
 /// <param name="shp">The <see cref="WpfGeometry"/></param>
 /// <param name="tolerance">The tolerance parameter to use</param>
 /// <param name="geomFact">The GeometryFactory to use</param>
 /// <returns>A Geometry representing the shape</returns>
 public static IGeometry Read(WpfGeometry shp, double tolerance, IGeometryFactory geomFact)
 {
     var path = shp.GetFlattenedPathGeometry(tolerance, ToleranceType.Relative);
     return Read(path, geomFact);
 }

        private static void TriangulateText(out List<Point3D> vertices, out List<Vector3D> normals, out List<int> indices, out List<Point> textures, Geometry geometry, double depth)
        {
            //Got this here:
            //http://msdn.microsoft.com/en-us/magazine/cc163349.aspx

            vertices = new List<Point3D>();
            normals = new List<Vector3D>();
            indices = new List<int>();
            textures = new List<Point>();

            Point origin = new Point(0, 0);     // origin was passed into the making of geometry.  Don't think it's need twice

            // Convert TextGeometry to series of closed polylines.
            PathGeometry path = geometry.GetFlattenedPathGeometry(0.001, ToleranceType.Relative);

            List<Point> list = new List<Point>();

            foreach (PathFigure fig in path.Figures)
            {
                list.Clear();
                list.Add(fig.StartPoint);

                foreach (PathSegment seg in fig.Segments)
                {
                    if (seg is LineSegment)
                    {
                        LineSegment lineseg = seg as LineSegment;
                        list.Add(lineseg.Point);
                    }
                    else if (seg is PolyLineSegment)
                    {
                        PolyLineSegment polyline = seg as PolyLineSegment;
                        for (int i = 0; i < polyline.Points.Count; i++)
                            list.Add(polyline.Points[i]);
                    }
                }

                // Figure is complete. Post-processing follows.
                if (list.Count > 0)
                {
                    // Remove last point if it's the same as the first.
                    if (list[0] == list[list.Count - 1])
                        list.RemoveAt(list.Count - 1);

                    // Convert points to Y increasing up.
                    for (int i = 0; i < list.Count; i++)
                    {
                        Point pt = list[i];
                        pt.Y = 2 * origin.Y - pt.Y;
                        list[i] = pt;
                    }

                    // For each figure, process the points.
                    ProcessTextFigure(list, vertices, normals, indices, textures, depth);
                }
            }
        }

 public GradientGeometry(Geometry data, double tolerance, double strokeThickness)
 {
     // Flatten the PathGeometry
     var flattened = data.GetFlattenedPathGeometry(tolerance, ToleranceType.Absolute);
     this.FigureGeometries = flattened.Figures.Select(x => new FigureGeometry(x, strokeThickness)).ToArray();
 }