// This is a NO-OP
public void EndGeometry()
{
var first = true;
if (_doReverse)
{
_points.Reverse();
}
if (_isCircularString)
{
_target.BeginGeometry(OpenGisGeometryType.CurvePolygon);
for (var iterator = 0; iterator < _points.Count; iterator++)
{
var point = _points[iterator];
if (first)
{
_target.BeginFigure(point.X, point.Y, point.Z, point.M);
first = false;
}
else
{
var nextPoint = _points[iterator + 1];
_target.AddCircularArc(point.X, point.Y, point.Z, point.M, nextPoint.X, nextPoint.Y, nextPoint.Z, nextPoint.M);
iterator++;
}
}
}
else
{
_target.BeginGeometry(OpenGisGeometryType.Polygon);
foreach (var point in _points)
{
if (first)
{
_target.BeginFigure(point.X, point.Y, point.Z, point.M);
first = false;
}
else
{
_target.AddLine(point.X, point.Y, point.Z, point.M);
}
}
}
_target.EndFigure();
_target.EndGeometry();
}
static void Main(string[] args)
{
// EXAMPLE 1 : POINT
// Create a new instance of the SqlGeographyBuilder
SqlGeometryBuilder gb = new SqlGeometryBuilder();
// Set the spatial reference identifier
gb.SetSrid(27700);
// Declare the type of geometry to be created
gb.BeginGeometry(OpenGisGeometryType.Point);
// Add the coordinates of the first (and only) point
gb.BeginFigure(300500, 600200);
// End the figure
gb.EndFigure();
// End the geometry
gb.EndGeometry();
// Retrieve the constructed geometry
SqlGeometry Point = gb.ConstructedGeometry;
// Print WKT of the geometry to the console window
Console.WriteLine(Point.ToString());
// EXAMPLE 2 : MULTIPOINT
// Create a new instance of the SqlGeographyBuilder
SqlGeographyBuilder gb2 = new SqlGeographyBuilder();
// Set the spatial reference identifier
gb2.SetSrid(4269);
// Declare the type of collection to be created
gb2.BeginGeography(OpenGisGeographyType.MultiPoint);
// Create the first point in the collection
gb2.BeginGeography(OpenGisGeographyType.Point);
gb2.BeginFigure(40, -120);
gb2.EndFigure();
gb2.EndGeography();
// Create the second point in the collection
gb2.BeginGeography(OpenGisGeographyType.Point);
gb2.BeginFigure(45, -100);
gb2.EndFigure();
gb2.EndGeography();
// Create the second point in the collection
gb2.BeginGeography(OpenGisGeographyType.Point);
gb2.BeginFigure(42, -110);
gb2.EndFigure();
gb2.EndGeography();
// End the geometry and retrieve the constructed instance
gb2.EndGeography();
SqlGeography MultiPoint = gb2.ConstructedGeography;
Console.WriteLine(MultiPoint.ToString());
// EXAMPLE 3: POLYGON WITH INTERIOR RING
// Create a new instance of the SqlGeometryBuilder
SqlGeometryBuilder gb3 = new SqlGeometryBuilder();
// Set the spatial reference identifier
gb3.SetSrid(0);
// Declare the type of geometry to be created
gb3.BeginGeometry(OpenGisGeometryType.Polygon);
// Exterior ring
gb3.BeginFigure(0, 0);
gb3.AddLine(10, 0);
gb3.AddLine(10, 20);
gb3.AddLine(0, 20);
gb3.AddLine(0, 0);
gb3.EndFigure();
// Interior ring
gb3.BeginFigure(3, 3);
gb3.AddLine(7, 3);
gb3.AddLine(5, 17);
gb3.AddLine(3, 3);
gb3.EndFigure();
// End the geometry and retrieve the constructed instance
gb3.EndGeometry();
SqlGeometry Polygon = gb3.ConstructedGeometry;
// EXAMPLE 4: CURVED GEOMETRIES
// Create a new instance of the SqlGeographyBuilder
SqlGeometryBuilder gb4 = new SqlGeometryBuilder();
// Set the spatial reference identifier
gb4.SetSrid(0);
// Declare the type of geometry to be created
gb4.BeginGeometry(OpenGisGeometryType.CompoundCurve);
// Begin the figure at a point
gb4.BeginFigure(50, 0);
// Draw a straight line edge
gb4.AddLine(50, 10);
// Draw a circular curved edge
gb4.AddCircularArc(55, 5, 60, 0);
// End the figure
gb4.EndFigure();
// End the geometry
gb4.EndGeometry();
SqlGeometry CompoundCurve = gb4.ConstructedGeometry;
Console.WriteLine(CompoundCurve.ToString());
// EXAMPLE 5: 3- AND 4- DIMENSIONAL COORDINATES
// Create a new instance of the SqlGeographyBuilder
SqlGeographyBuilder gb5 = new SqlGeographyBuilder();
// Set the spatial reference identifier
gb5.SetSrid(4326);
// Declare the type of collection to be created
gb5.BeginGeography(OpenGisGeographyType.Point);
gb5.BeginFigure(52, 0.15, 140, null);
gb5.EndFigure();
gb5.EndGeography();
SqlGeography PointZ = gb5.ConstructedGeography;
Console.WriteLine(PointZ.ToString());
Console.ReadLine();
}
