/// <summary>
/// Constructs a new <c>MultiSegmentGeometry</c>
/// </summary>
/// <param name="start">The point at the start of the connection.</param>
/// <param name="end">The point at the end of the connection.</param>
/// <param name="positions">The ground positions to pack. The first & last positions must exactly
/// match the position of the supplied end points.</param>
internal MultiSegmentGeometry(ITerminal start, ITerminal end, IPointGeometry[] positions)
: base(start, end)
{
if (positions == null || positions.Length == 0)
{
throw new ArgumentNullException();
}
if (positions.Length <= 2)
{
throw new ArgumentException("Not enough points for a multi-segment");
}
if (!start.IsCoincident(positions[0]))
{
throw new ArgumentException("Start point doesn't coincide with first position");
}
if (!end.IsCoincident(positions[positions.Length - 1]))
{
throw new ArgumentException("End point doesn't coincide with last position");
}
m_Data = positions;
m_Extent = LineStringGeometry.GetExtent(this);
}
/// <summary>
/// Initializes a new instance of the <see cref="MultiSegmentGeometry"/> class
/// using the data read from persistent storage.
/// </summary>
/// <param name="editDeserializer">The mechanism for reading back content.</param>
internal MultiSegmentGeometry(EditDeserializer editDeserializer)
: base(editDeserializer)
{
// LineString assumes 2D, with X preceding Y. Each coordinate pair is separated
// with a comma, with a space between each X and Y (e.g. "123 345,124 349,129 341")
string s = editDeserializer.ReadString(DataField.LineString);
string[] xys = s.Split(',');
m_Data = new IPointGeometry[xys.Length];
for (int i = 0; i < xys.Length; i++)
{
string xy = xys[i].Trim();
int blankPos = xy.IndexOf(' ');
if (blankPos <= 0)
{
throw new FormatException();
}
double x = Double.Parse(xy.Substring(0, blankPos));
double y = Double.Parse(xy.Substring(blankPos + 1));
m_Data[i] = new PointGeometry(x, y);
}
m_Extent = LineStringGeometry.GetExtent(this);
}
private void ribbonButton51_Click(object sender, EventArgs e)
{
if (featurePrimitiveLineString == null)
{
LineStringGeometry lineString = new LineStringGeometry();
Vec3d vec3d1 = new Vec3d();
vec3d1.set(-74, 40.714, 0);
Vec3d vec3d2 = new Vec3d();
vec3d2.set(139.75, 35.68, 0);
lineString.push_back(vec3d1);
lineString.push_back(vec3d2);
Feature feature = new Feature();
feature.setGeometry(lineString);
featurePrimitiveLineString = new FeaturePrimitive();
featurePrimitiveLineString.setFeature(feature);
m_earthRoot.addChild(featurePrimitiveLineString);
}
}
private ArcFeature ImportArc(Ntx.Line line, Operation creator, ILength tol)
{
Debug.Assert(line.IsCurve);
IEntity what = GetEntityType(line, SpatialType.Line);
// Get positions defining the arc
PointGeometry[] pts = GetPositions(line);
// Ignore zero-length lines
if (HasZeroLength(pts))
{
return(null);
}
// Add a point at the center of the circle
Ntx.Position pos = line.Center;
PointGeometry pc = new PointGeometry(pos.Easting, pos.Northing);
PointFeature center = EnsurePointExists(pc, tol, creator);
// Calculate exact positions for the arc endpoints
double radius = line.Radius;
ICircleGeometry cg = new CircleGeometry(pc, radius);
IPosition bc = CircleGeometry.GetClosestPosition(cg, pts[0]);
IPosition ec = CircleGeometry.GetClosestPosition(cg, pts[pts.Length - 1]);
// Round off to nearest micron
PointGeometry bcg = PointGeometry.Create(bc);
PointGeometry ecg = PointGeometry.Create(ec);
// Ensure point features exist at both ends of the line.
PointFeature ps = GetArcEndPoint(bcg, tol, creator);
PointFeature pe = GetArcEndPoint(ecg, tol, creator);
// Try to find a circle that's already been added by this import.
Circle c = EnsureCircleExists(center, radius, tol, creator);
// Determine which way the arc is directed
bool iscw = LineStringGeometry.IsClockwise(pts, center);
InternalIdValue id = CadastralMapModel.Current.WorkingSession.AllocateNextId();
ArcFeature arc = new ArcFeature(creator, id, what, c, ps, pe, iscw);
// The toological status of the incoming arc may override the status that the
// constructor derived from the entity type
arc.SetTopology(line.IsTopologicalArc);
#if DEBUG
// Confirm the NTX data was valid (ensure it's consistent with what we've imported)...
double readRad = c.Radius;
double calcRad = BasicGeom.Distance(c.Center, ps);
Debug.Assert(Math.Abs(readRad - calcRad) < tol.Meters);
foreach (IPointGeometry pg in pts)
{
ILength check = arc.Geometry.Distance(pg);
Debug.Assert(check.Meters < tol.Meters);
}
#endif
return(arc);
}
internal override ILength GetLength(IPosition asFarAs)
{
ILength tol = new Length(Constants.XYTOL);
return(LineStringGeometry.GetLength(this, asFarAs, tol));
}
internal override void Render(ISpatialDisplay display, IDrawStyle style)
{
LineStringGeometry.Render(this, display, style);
}
public override ILength Distance(IPosition point)
{
return(LineStringGeometry.GetDistance(this, point));
}
private void ribbonButton51_Click(object sender, EventArgs e)
{
if (featurePrimitiveLineString == null)
{
LineStringGeometry lineString = new LineStringGeometry();
Vec3d vec3d1 = new Vec3d();
vec3d1.set(-74, 40.714, 0);
Vec3d vec3d2 = new Vec3d();
vec3d2.set(139.75, 35.68, 0);
lineString.push_back(vec3d1);
lineString.push_back(vec3d2);
Feature feature = new Feature();
feature.setGeometry( lineString );
featurePrimitiveLineString = new FeaturePrimitive();
featurePrimitiveLineString.setFeature( feature );
m_earthRoot.addChild( featurePrimitiveLineString );
}
}
