/// <summary>
/// Creates ag3.DCurve from a geometry
/// </summary>
/// <param name="curve"> this curve</param>
/// <param name="geom"> the OGR geometry to ue as ths source</param>
/// <param name="crs"> the crs to u for the DCurve3 DEFAULT map default projections or EPG:4326 if none</param>
/// <returns></returns>
public static DCurve3 FromGeometry(this DCurve3 curve, Geometry geom, SpatialReference crs = null)
{
if (geom.GetSpatialReference() == null)
{
if (crs != null)
{
geom.AssignSpatialReference(crs);
}
else
{
geom.AssignSpatialReference(AppState.instance.projectCrs);
}
}
if (geom.TransformTo(AppState.instance.mapProj) != 0)
{
throw new NotSupportedException("projection failed");
}
if (geom.Transform(AppState.instance.mapTrans) != 0)
{
throw new NotSupportedException("axis change failed");
}
int n = geom.GetPointCount();
Vector3d[] ls = new Vector3d[n];
for (int i = 0; i < n; i++)
{
double[] argout = new double[3];
geom.GetPoint(i, argout);
ls[i] = new Vector3d(argout);
}
curve.ClearVertices();
curve.SetVertices(ls);
curve.Closed = geom.IsRing();
return(curve);
}
/// <summary>
/// Creates g3.DCurve from Vector3[]
/// </summary>
/// <param name="curve">DCurve</param>
/// <param name="verteces">Vextor3[]</param>
/// <param name="bClosed">whether the line is closed</param>
public static DCurve3 Vector3(this DCurve3 curve, Vector3[] verteces, bool bClosed)
{
curve.ClearVertices();
curve.Closed = bClosed;
foreach (Vector3 vertex in verteces)
{
curve.AppendVertex(vertex);
}
return(curve);
}