internal SqlGeography(ShapeData g, int srid)
{
this.srid = srid;
this._geometry = g;
}
public SqlGeography()
{
_geometry = new ShapeData();
}
private ShapeData ShapeToGeometry(int shapeIndex)
{
if (shapeIndex == 0)
{
return(this);
}
ShapeData geoDatum = new ShapeData();
var shape = _shapes[shapeIndex];
var nextShape = shapeIndex + 1;
for (; nextShape < _shapes.Length; nextShape++)
{
if (_shapes[nextShape].ParentOffset == shape.ParentOffset)
{
break;
}
}
List <Shape> shapes = new List <Shape>(nextShape - shapeIndex);
List <Figure> figures = new List <Figure>();
List <Point> vertices = new List <Point>();
List <double> zvalues = _zValues == null ? null : new List <double>();
List <double> mvalues = _mValues == null ? null : new List <double>();
for (int i = shapeIndex; i < nextShape; i++)
{
var s = _shapes[i];
var nextFigure = i + 1 < _shapes.Length ? _shapes[i + 1].FigureOffset : _figures.Length;
var figureOffset = figures.Count;
for (int j = s.FigureOffset; j < nextFigure; j++)
{
var f = _figures[j];
figures.Add(new Figure()
{
FigureAttribute = f.FigureAttribute, VertexOffset = vertices.Count
});
var nextFigureVertexOffset = (j + 1 < _figures.Length) ? _figures[j + 1].VertexOffset : _vertices.Length;
vertices.AddRange(_vertices.Skip(f.VertexOffset).Take(nextFigureVertexOffset - f.VertexOffset));
if (zvalues != null)
{
zvalues.AddRange(_zValues.Skip(f.VertexOffset).Take(nextFigureVertexOffset - f.VertexOffset));
}
if (mvalues != null)
{
mvalues.AddRange(_mValues.Skip(f.VertexOffset).Take(nextFigureVertexOffset - f.VertexOffset));
}
}
shapes.Add(new Shape()
{
type = s.type, ParentOffset = shape.ParentOffset - s.ParentOffset - 1, FigureOffset = figureOffset
});
}
geoDatum._shapes = shapes.ToArray();
geoDatum._figures = figures != null || figures.Any() ? figures?.ToArray() : null;
if (vertices.Count == 1 && double.IsNaN(vertices[0].X) && double.IsNaN(vertices[0].Y)) //Empty point
{
}
else
{
geoDatum._vertices = vertices.ToArray();
geoDatum._zValues = zvalues?.ToArray();
geoDatum._mValues = mvalues?.ToArray();
}
geoDatum._isLargerThanAHemisphere = this._isLargerThanAHemisphere;
//TODO: Segments
geoDatum._isValid = _isValid;
return(geoDatum);
}
