/// <summary>
/// 多线段转换
/// </summary>
/// <param name="paras"></param>
/// <returns></returns>
private static List <LwPolylineModel> ToConverter(this IEnumerable <LwPolyline> paras)
{
List <LwPolylineModel> values = new List <LwPolylineModel>();
int channelPort = 1;//所在图层，默认给第一层
foreach (var p in paras)
{
int.TryParse(p.Layer.Name, out channelPort);
channelPort = (channelPort <= 0 || channelPort > 15) ? 1 : channelPort;
var lwPolyline = new LwPolylineModel()
{
GroupParam = new GroupParam()
{
FigureSN = SN++, GroupSN = new List <int>()
{
0
}
},
LayerId = channelPort,
IsFill = p.IsClosed
};
foreach (var vertex in p.Vertexes)
{
lwPolyline.Points.Add(new UnitPointBulge(new UnitPoint(vertex.Position.X, vertex.Position.Y))
{
Bulge = vertex.Bulge == 0 ? double.NaN : vertex.Bulge
});
}
System.Diagnostics.Debug.WriteLine("lwPolyline.Count:" + lwPolyline.PointCount);
values.Add(lwPolyline);
}
return(values);
}
/// <summary>
/// 圆管面切割
/// </summary>
/// <param name="isRotationX">是否x作为旋转轴</param>
/// <param name="r">圆管半径</param>
/// <param name="angle">倾斜角</param>
/// <param name="step">取点步长，默认0.1</param>
/// <returns>返回多段线</returns>
public static List <FigureBaseModel> GetDataByPipePlane(bool isRotationX, double r, double angle, double step = 0.1)
{
angle = angle % 180;
if (angle == 0 || angle == 180)
{
return(null);
}
LwPolylineModel lines = new LwPolylineModel()
{
IsFill = false, LayerId = 1
};
double moveAngle = 0;//平移
if (angle > 90)
{
moveAngle = Math.PI;
}
double A = Math.PI / 180.0;
double range = r * Math.Tan(A * Math.Abs(angle - 90));//阈值
double x, y, theta;
for (double i = 0; i < 360.0; i += step)
{
x = A * r * i;
theta = A * i - moveAngle;
y = range * (Math.Cos(theta) + 1);
lines.Points.Add(new UnitPointBulge(isRotationX ? new UnitPoint(x, y) : new UnitPoint(y, x)));
}
return(new List <FigureBaseModel>()
{
lines
});
}
public static List <LwPolylineModel> BuildTextPath(MText mText, System.Windows.Media.Typeface typeface, int fontSize)
{
string text = mText.PlainText();
var positon = new System.Windows.Point(mText.Position.X, -mText.Position.Y);
var data = GetTextGeometry(text, positon, 360 - mText.Rotation, typeface, fontSize);
var figures = data.GetOutlinedPathGeometry().Figures;
SortedList <double, LwPolylineModel> sortLines = new SortedList <double, LwPolylineModel>();
foreach (var fig in figures)
{
LwPolylineModel line = new LwPolylineModel();
line.IsFill = fig.IsClosed;
foreach (var seg in fig.Segments)
{
if (seg is PolyLineSegment)
{
var segs = seg as PolyLineSegment;
var points = segs.Points.Select(e =>
{
var point = GetSymmetryPointByLine(new UnitPoint(e.X, e.Y), 0, 1, 0);
return(new UnitPointBulge(point));
}).ToList();
line.Points.AddRange(points);
}
else if (seg is ArcSegment)
{
}
else if (seg is BezierSegment)
{
}
else if (seg is LineSegment)
{
}
else if (seg is PolyBezierSegment)
{
}
else if (seg is PolyQuadraticBezierSegment)
{
}
else if (seg is QuadraticBezierSegment)
{
}
else
{
}
}
sortLines.Add(Distance(new UnitPoint(mText.Position.X, -mText.Position.Y), new UnitPoint(fig.StartPoint.X, fig.StartPoint.Y), true), line);
}
return(sortLines.Values.ToList());
}
/// <summary>
/// 圆管相贯线计算
/// </summary>
/// <param name="isRotationX">是否X作为旋转轴，否则Y</param>
/// <param name="isDrill">是否钻孔，否则切断</param>
/// <param name="isThrough">是否穿过待切管</param>
/// <param name="R">待切管半径</param>
/// <param name="angle">相贯角（倾斜角）</param>
/// <param name="r">相贯半径</param>
/// <param name="d">轴心距离</param>
/// <param name="step">取点步长</param>
/// <returns></returns>
public static List <FigureBaseModel> GetDataByPipeIntersecte(bool isRotationX, bool isDrill, bool isThrough, double R, double angle, double r, double d, double step = 0.1)
{
// 圆管相贯线平面展开曲线方程,参考Url: https://www.ixueshu.com/document/06f64bb49e36f975.html
// R的展开平面曲线方程：
// X = R * α
// Y = 1 / Math.Cos(β) * (+/-Math.Sqrt(r * r - Math.Pow(R * Math.Sin(α) - d, 2)) - R * Math.Cos(α) * Math.Sin(β));
// 参数说明：
// 1.X->横坐标
// 2.Y->纵坐标
// 3.α ->旋转角[0, 2π]
// 4.β->两轴倾斜夹角(不能等于0°或者180°)
// 5.R->待切管半径
// 6.r->相贯半径
// 7.d->两圆管的轴心距离
if (angle == 0 || angle == 180)
{
return(null);
}
List <FigureBaseModel> rets = new List <FigureBaseModel>();
//缓存四个区域的连续点
List <UnitPointBulge> points1 = new List <UnitPointBulge>();
List <UnitPointBulge> points2 = new List <UnitPointBulge>();
List <UnitPointBulge> points3 = new List <UnitPointBulge>();
List <UnitPointBulge> points4 = new List <UnitPointBulge>();
//计算相贯线的坐标
double A = Math.PI / 180.0;
double beta = A * angle + Math.PI / 2;
double x, y1, y2, alpha, sqrt, sinA, sinB, cosA, cosB;
sinB = Math.Sin(beta);
cosB = Math.Cos(beta);
for (double i = 0; i < 360; i += step)
{
alpha = A * i;
x = R * alpha;
alpha = alpha - Math.PI / 2;//平移
sinA = Math.Sin(alpha);
cosA = Math.Cos(alpha);
sqrt = Math.Sqrt(r * r - Math.Pow(R * sinA - d, 2));
if (!double.IsNaN(sqrt))
{
y1 = 1 / cosB * (-sqrt - R * cosA * sinB); //开方取负
y2 = 1 / cosB * (sqrt - R * cosA * sinB); //开方取正
if (i < 180)
{
points1.Add(isRotationX ? new UnitPointBulge(new UnitPoint(x, y1)) : new UnitPointBulge(new UnitPoint(y1, x)));
points2.Add(isRotationX ? new UnitPointBulge(new UnitPoint(x, y2)) : new UnitPointBulge(new UnitPoint(y2, x)));
}
else
{
points3.Add(isRotationX ? new UnitPointBulge(new UnitPoint(x, y1)) : new UnitPointBulge(new UnitPoint(y1, x)));
points4.Add(isRotationX ? new UnitPointBulge(new UnitPoint(x, y2)) : new UnitPointBulge(new UnitPoint(y2, x)));
}
}
}
//筛选合适的点
//根据轴心距离和半径，判断两圆管的相交情况，确定切断/钻孔/穿过的切割方式
int cutStyle = 0; //切割方式0-钻孔，1-切断，2-穿过
int lineNum = 1; //曲线数量,1条和2条
bool isClose = false; //是否封闭
double rmin = R + d - r;
double rmax = R + d + r;
double Rmin = 0;
double Rmax = 2 * R;
if (rmin == Rmin && rmax == Rmax)
{
//两圆管大小相同且正交
if (isThrough)
{
cutStyle = 2; lineNum = 2; isClose = true;
}
else if (isDrill)
{
cutStyle = 0; lineNum = 1; isClose = true;
}
else
{
cutStyle = 1; lineNum = 1; isClose = false;
}
}
else
{
if ((rmin < Rmin && rmax > rmin && rmax < Rmax) ||
(rmax > Rmax && rmin > Rmin && rmin < Rmax))
{
//两圆管有部分相交,一条封闭曲线
cutStyle = 2;
lineNum = 1;
isClose = true;
}
else if (rmin < Rmin && rmax > Rmax)
{
//待切管被完全包围，两条封闭曲线，取一条，即切断
cutStyle = 1;
lineNum = 1;
isClose = false;
}
else
{
//待切管被打孔
if (isThrough)
{
cutStyle = 2; lineNum = 2; isClose = true;
}
else
{
cutStyle = 0; lineNum = 1; isClose = true;
}
}
}
if (cutStyle == 0)
{
points2.Reverse();
var line1 = new LwPolylineModel()
{
IsFill = isClose, LayerId = 1
};
line1.Points.AddRange(points1);
line1.Points.AddRange(points2);
rets.Add(line1);
}
else if (cutStyle == 1)
{
var line1 = new LwPolylineModel()
{
IsFill = isClose, LayerId = 1
};
line1.Points.AddRange(points1);
line1.Points.AddRange(points3);
rets.Add(line1);
}
else
{
if (lineNum == 2)
{
points2.Reverse();
points4.Reverse();
var line1 = new LwPolylineModel()
{
IsFill = isClose, LayerId = 1
};
var line2 = new LwPolylineModel()
{
IsFill = isClose, LayerId = 1
};
line1.Points.AddRange(points1);
line1.Points.AddRange(points2);
line2.Points.AddRange(points4);
line2.Points.AddRange(points3);
rets.Add(line1);
rets.Add(line2);
}
else
{
points2.Reverse();
points4.Reverse();
var line1 = new LwPolylineModel()
{
IsFill = isClose, LayerId = 1
};
line1.Points.AddRange(points1);
line1.Points.AddRange(points3);
line1.Points.AddRange(points4);
line1.Points.AddRange(points2);
rets.Add(line1);
}
}
return(rets);
}
