AutoPatientInfoRecorder/src/AntdUI/Lib/SVG/Text/PathStatistics.cs

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// THIS FILE IS PART OF SVG PROJECT
// THE SVG PROJECT IS AN OPENSOURCE LIBRARY LICENSED UNDER THE MS-PL License.
// COPYRIGHT (C) svg-net. ALL RIGHTS RESERVED.
// GITHUB: https://github.com/svg-net/SVG

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

namespace AntdUI.Svg
{
    public class PathStatistics
    {
        private const double GqBreak_TwoPoint = 0.57735026918962573;
        private const double GqBreak_ThreePoint = 0.7745966692414834;
        private const double GqBreak_FourPoint_01 = 0.33998104358485631;
        private const double GqBreak_FourPoint_02 = 0.86113631159405257;
        private const double GqWeight_FourPoint_01 = 0.65214515486254621;
        private const double GqWeight_FourPoint_02 = 0.34785484513745385;

        private PathData _data;
        private double _totalLength;
        private List<ISegment> _segments = new List<ISegment>();

        public double TotalLength { get { return _totalLength; } }

        public PathStatistics(PathData data)
        {
            _data = data;
            int i = 1;
            _totalLength = 0;
            ISegment newSegment;
            while (i < _data.Points.Length)
            {
                switch (_data.Types[i])
                {
                    case 1:
                        newSegment = new LineSegment(_data.Points[i - 1], _data.Points[i]);
                        i++;
                        break;
                    case 3:
                        newSegment = new CubicBezierSegment(_data.Points[i - 1], _data.Points[i], _data.Points[i + 1], _data.Points[i + 2]);
                        i += 3;
                        break;
                    default:
                        throw new NotSupportedException();
                }
                newSegment.StartOffset = _totalLength;
                _segments.Add(newSegment);
                _totalLength += newSegment.Length;
            }
        }


        public void LocationAngleAtOffset(double offset, out PointF point, out float angle)
        {
            _segments[BinarySearchForSegment(offset, 0, _segments.Count - 1)].LocationAngleAtOffset(offset, out point, out angle);
        }
        public bool OffsetOnPath(double offset)