public Data(FindIntersectionsCommand command)
{
Guid = command.Guid;
Curve1 = new CurveTable();
Curve1.Name = command.Curve1.Name;
Curve1.Points = new List <PointTable>();
foreach (var i in command.Curve1.Points)
{
Curve1.Points.Add(new PointTable()
{
X = i.X, Y = i.Y
});
}
Curve2 = new CurveTable();
Curve2.Name = command.Curve2.Name;
Curve2.Points = new List <PointTable>();
foreach (var i in command.Curve2.Points)
{
Curve2.Points.Add(new PointTable()
{
X = i.X, Y = i.Y
});
}
}
//Функция ищет пересечения двух ломанных
public static CurveIntersections FindItersections(FindIntersectionsCommand command)
{
//Точки кривых
List <Point> pointCurve1 = command.Curve1.Points.ToList();
List <Point> pointCurve2 = command.Curve2.Points.ToList();
//Точки пересечений
List <Point> pointIntersection = new List <Point>();
//если одна из линий представляет собой 1 точку, то пересечений ЛИНИЙ не будет.
//if (pointCurve1.Count < 2 || pointCurve2.Count < 2) { return null; }
for (int i = 0; i < pointCurve1.Count - 1; i++)
{
var line1 = getLine(pointCurve1[i], pointCurve1[i + 1]);
for (int j = 0; j < pointCurve2.Count - 1; j++)
{
var line2 = getLine(pointCurve2[j], pointCurve2[j + 1]);
var pointInter = getIntersectionLine(line1, line2);
if (pointInter != null)
{
if (pointIntersection.Count == 0)
{
pointIntersection.Add(pointInter);
}
//чтоб не попали дубли точек
else if (!pointIntersection.Any(p => p.X == pointInter.X && p.Y == pointInter.Y))
{
pointIntersection.Add(pointInter);
}
}
;
}
}
return(new CurveIntersections()
{
Points = pointIntersection
});
}
public async Task <ActionResult <CurveIntersections> > Post(FindIntersectionsCommand command)
{
//Получаем точки пересечения
var intersactionPoint = FindItersections(command);
var insertData = new Data(command);
insertData.PointIntersaction = new List <PointTable>();
foreach (var i in intersactionPoint.Points)
{
insertData.PointIntersaction.Add(new PointTable()
{
X = i.X, Y = i.Y
});
}
try
{
var existData = await db.DataTable.Include(c1 => c1.Curve1.Points).Include(c2 => c2.Curve2.Points)
.Include(p => p.PointIntersaction)
.FirstOrDefaultAsync(x => x.Guid == command.Guid);
if (existData is null)
{
db.DataTable.Add(insertData);
}
else
{
//вычистим старые данные
foreach (var i in existData.PointIntersaction)
{
db.Points.Remove(db.Points.Where(x => x.Id == i.Id).SingleOrDefault());
}
foreach (var i in existData.Curve1.Points)
{
db.Points.Remove(db.Points.Where(x => x.Id == i.Id).SingleOrDefault());
}
foreach (var i in existData.Curve2.Points)
{
db.Points.Remove(db.Points.Where(x => x.Id == i.Id).SingleOrDefault());
}
db.Curves.Remove(db.Curves.Where(x => x.Id == existData.Curve1.Id).SingleOrDefault());
db.Curves.Remove(db.Curves.Where(x => x.Id == existData.Curve2.Id).SingleOrDefault());
db.DataTable.Remove(db.DataTable.Where(x => x.Guid == existData.Guid).SingleOrDefault());
//добавим новые
db.DataTable.Add(insertData);
}
await db.SaveChangesAsync();
return(intersactionPoint);
}
catch
{
db.Dispose();
return(BadRequest());
}
}
