public GeoLine(Point p1, Point p2)
{
P1 = p1;
P2 = p2;
_direction = p2 - p1;
Length = _direction.Length;
_direction.Normalize();
GraphicHelper.CalcABC(p1, p2, out A, out B, out C);
}
public IEnumerable <Point> ToSegments(double segmentLength)
{
var points = GraphicHelper.ToSegments(_center, _radius, 0, Math.PI * 2, segmentLength);
if (_isReverse)
{
points.Reverse();
}
return(points);
}
public IEnumerable <Point> ToSegments(double segmentLength)
{
var points = GraphicHelper.ToSegments(_degree, _controlPoints, _knots, _weights, _startParameter, _endParameter, _length, segmentLength);
if (_isReverse)
{
points.Reverse();
}
return(points);
}
public IEnumerable <Point> ToSegments(double segmentLength)
{
var points = GraphicHelper.ToSegments(_center, _radius, Utilities.AngleToRadian(_startAngle), Utilities.AngleToRadian(_endAngle), segmentLength);
if (_isReverse)
{
points.Reverse();
}
return(points);
}
public IEnumerable <Point> ToSegments(double segmentLength)
{
var vector = (Vector)_center;
var transform = GraphicHelper.CreateRotateMatrix(_center, _rotateAngle);
var points = GraphicHelper.ToSegments(_lr, _sr, 0, Math.PI * 2, segmentLength);
if (_isReverse)
{
points.Reverse();
}
return(points.Select(p => (p + vector) * transform));
}
public IGraphic Extend(double distance, double segmentLength, JointType jointType, IEnumerable <Segment> segments = null)
{
var start = Start;
var end = End;
var vec = GraphicHelper.GetVector(end - start) * distance;
IGraphic graphic = new GraphicLine(start + vec, end + vec);
if (segments != null)
{
graphic = new GraphicCompositeCurve(graphic.Spilt(segments, segmentLength), false);
}
return(graphic);
}
public Point GetPoint(double length, double segmentLength)
{
if (length < 0 || length > Length)
{
throw new ArgumentOutOfRangeException();
}
if (_isReverse)
{
length = Length - length;
}
var parameter = GraphicHelper.GetParameter(_lr, _sr, 0, length, segmentLength);
return(_center + new Vector(_lr * Math.Cos(parameter), _sr * Math.Sin(parameter)) * GraphicHelper.CreateRotateMatrix(_center, _rotateAngle));
}
public Point GetPoint(double length, double segmentLength)
{
if (length < 0 || length > Length)
{
throw new ArgumentOutOfRangeException();
}
if (_isReverse)
{
length = Length - length;
}
var parameter = GraphicHelper.GetParameter(_degree, _controlPoints, _knots, _weights, _startParameter, length, _length, segmentLength);
return(GraphicHelper.ComputePoint(_degree, _knots, _controlPoints, _weights, parameter));
}
public GraphicEllipse(Point center, double lr, double sr, double rotateAngle, bool isClockwise = false)
{
if (lr <= 0 || sr <= 0)
{
throw new ArgumentOutOfRangeException();
}
_center = center;
_lr = lr;
_sr = sr;
_rotateAngle = rotateAngle;
_isReverse = isClockwise;
_length = GraphicHelper.ComputeArcLength(_lr, _sr, 0, Math.PI * 2, Math.PI / 4);
}
public GraphicPolyLine(IEnumerable <Point> points)
{
if (points == null)
{
throw new ArgumentNullException();
}
_points = GraphicHelper.FilterRepeat(points).ToList();
if (_points.Count < 2)
{
throw new ArgumentOutOfRangeException();
}
_length = GraphicHelper.CalcLength(_points);
}
public IGraphic Extend(double distance, double segmentLength, JointType jointType, IEnumerable <Segment> segments = null)
{
if (_isContinuously)
{
return(GraphicHelper.Extend(_ToSegments(segmentLength).ToList(), distance, jointType, segments, IsClosed));
}
else
{
var graphics = _graphics.Select(graphic => graphic.Extend(distance, segmentLength, jointType));
if (graphics.Any(graphic => graphic == null))
{
return(null);
}
return(new GraphicCompositeCurve(graphics, _isContinuously));
}
}
public IEnumerable <IGraphic> Spilt(IEnumerable <Segment> segments, double segmentLength)
{
foreach (var segment in segments)
{
var startOffset = segment.StartOffset;
var endOffset = segment.EndOffset;
if (_isReverse)
{
startOffset = _length - segment.EndOffset;
endOffset = _length - segment.StartOffset;
}
var startAngle = Utilities.RadianToAngle(GraphicHelper.GetParameter(_lr, _sr, 0, startOffset, segmentLength));
var endAngle = Utilities.RadianToAngle(GraphicHelper.GetParameter(_lr, _sr, 0, endOffset, segmentLength));
yield return(new GraphicEllipticalArc(_center, _lr, _sr, startAngle, endAngle, _rotateAngle, _isReverse));
}
}
public GraphicBezier(int degree, IEnumerable <Point> controlPoints, bool isReverse = false)
{
if (controlPoints == null)
{
throw new ArgumentNullException();
}
_degree = degree;
_controlPoints = controlPoints.ToArray();
if (_controlPoints.Length < 2)
{
throw new ArgumentException();
}
_isReverse = isReverse;
_length = GraphicHelper.ComputeArcLength(_controlPoints, _degree, 0, 1, 0.1);
}
public Vector GetTangent(double length, double segmentLength)
{
if (length < 0 || length > Length)
{
throw new ArgumentOutOfRangeException();
}
if (_isReverse)
{
length = Length - length;
}
var parameter = GraphicHelper.GetParameter(_degree, _controlPoints, _knots, _weights, _startParameter, length, _length, segmentLength);
var dir = GraphicHelper.ComputeVector(_degree, 1, _knots, _controlPoints, parameter);
if (_isReverse)
{
dir = -dir;
}
return(dir);
}
public Vector GetTangent(double length, double segmentLength)
{
if (length < 0 || length > Length)
{
throw new ArgumentOutOfRangeException();
}
if (_isReverse)
{
length = Length - length;
}
var parameter = GraphicHelper.GetParameter(_lr, _sr, 0, length, segmentLength);
var dir = new Vector(-_lr * Math.Sin(parameter), _sr * Math.Cos(parameter));
if (_isReverse)
{
dir = -dir;
}
return(dir);
}
public GraphicEllipticalArc(Point center, double lr, double sr, double startAngle, double endAngle, double rotateAngle, bool isClockwise = false)
{
if (lr < 0 || sr < 0)
{
throw new ArgumentOutOfRangeException();
}
if (startAngle > endAngle)
{
throw new ArgumentOutOfRangeException();
}
if (endAngle - startAngle > 360)
{
throw new ArgumentException();
}
_center = center;
_lr = lr;
_sr = sr;
_startAngle = startAngle;
_endAngle = endAngle;
_rotateAngle = rotateAngle;
_isReverse = isClockwise;
_length = GraphicHelper.ComputeArcLength(_lr, _sr, Utilities.AngleToRadian(_startAngle), Utilities.AngleToRadian(_endAngle), Math.PI / 4);
}
public IEnumerable <IGraphic> Spilt(IEnumerable <Segment> segments, double segmentLength)
{
var points = ToSegments(segmentLength).ToList();
return(GraphicHelper.Spilt(points, _length, segments));
}
public IGraphic Extend(double distance, double segmentLength, JointType jointType, IEnumerable <Segment> segments = null)
{
return(GraphicHelper.Extend(ToSegments(segmentLength).ToList(), distance, jointType, segments, IsClosed));
}
private void _Init()
{
_length = GraphicHelper.ComputeArcLength(_degree, _knots, _controlPoints, _weights, _startParameter, _endParameter, 0.1);
_start = GraphicHelper.ComputePoint(_degree, _knots, _controlPoints, _weights, _startParameter);
_end = GraphicHelper.ComputePoint(_degree, _knots, _controlPoints, _weights, _endParameter);
}
public IEnumerable <IGraphic> Spilt(IEnumerable <Segment> segments, double segmentLength)
{
return(GraphicHelper.Spilt(_points, _length, segments));
}
public IEnumerable <Point> ToSegments(double segmentLength)
{
return(GraphicHelper.ToSegments(_p1, _p2, segmentLength));
}