public static IPolyLine3D ConvertTo3D(IPolyLine2D polyline, IMatrix44 lcs)
{
var geom = GeomOperation.ConvertTo3D(polyline);
GeomOperation.TransformToGCS(lcs, geom);
return(geom);
}
public static ISegment2D ConvertTo2D(ISegment3D segment3D, IMatrix44 lcs)
{
var segmentCopy = segment3D.CloneSegment();
GeomOperation.TransformToLCS(lcs, segmentCopy);
var segment2D = ConvertTo2D(segmentCopy);
return(segment2D);
}
/// <summary>
/// Transforms given polyline 3D to LCS using matrix and converts to 2D geometry.
/// </summary>
/// <param name="polyline3D">Polyline to convert.</param>
/// <param name="lcs">Local coordinate system.</param>
/// <returns>2D geometry.</returns>
public static IPolyLine2D ConvertTo2D(IPolyLine3D polyline3D, IMatrix44 lcs)
{
var polylineCopy = new PolyLine3D(polyline3D);
GeomOperation.TransformToLCS(lcs, polylineCopy);
var polyline2D = ConvertTo2D(polylineCopy);
return(polyline2D);
}
public static IRegion2D ConvertTo2D(IRegion3D region3D, IMatrix44 lcs)
{
var regionCopy = new Region3D(region3D);
GeomOperation.TransformToLCS(lcs, regionCopy);
var outline2D = ConvertTo2D(regionCopy.Outline);
var region2D = new Region2D(outline2D);
if (regionCopy.OpeningsCount > 0)
{
foreach (var opening3D in regionCopy.Openings)
{
region2D.Openings.Add(ConvertTo2D(opening3D));
}
}
return(region2D);
}
internal static IPolyLine3D ConvertTo3D(IPolygon2D polygon2D, Func <double, double, IPoint3D> createPoint, IMatrix44 lcs = null)
{
if (polygon2D == null)
{
return(null);
}
var count = polygon2D.Count;
if (count > 1)
{
var polyline3D = new PolyLine3D();
var beg = createPoint(polygon2D[0].X, polygon2D[0].Y);
for (var i = 1; i < count; ++i)
{
var end = createPoint(polygon2D[i].X, polygon2D[i].Y);
var seg = new LineSegment3D(beg, end);
polyline3D.Add(seg);
beg = end;
}
if (polygon2D.IsClosed)
{
polyline3D.Segments.Last().EndPoint = polyline3D.Segments.First().StartPoint;
}
if (lcs != null)
{
GeomOperation.TransformToGCS(lcs, polyline3D);
}
return(polyline3D);
}
return(null);
}
