public DXFUtilitiesResult Extract(DxfUnitsType units, uint maxBoundariesToProcess, bool convertLineStringCoordsToPolygon)
{
bool atEOF;
Boundaries = new PolyLineBoundaries(units, maxBoundariesToProcess);
do
{
if (_reader.GetBoundaryFromPolyLineEntity(!convertLineStringCoordsToPolygon, out atEOF, out var boundary))
{
if (boundary != null && boundary.Boundary.Points.Count >= 3)
{
if (boundary.Type == DXFLineWorkBoundaryType.Unknown)
{
boundary.Type = DXFLineWorkBoundaryType.GenericBoundary;
}
if (string.IsNullOrEmpty(boundary.Name))
{
boundary.Name = $"{Boundaries.Boundaries.Count + 1}";
}
Boundaries.Boundaries.Add(boundary);
}
}
} while (Boundaries.Boundaries.Count < maxBoundariesToProcess && !atEOF);
// Determine units in file
return(DXFUtilitiesResult.Ok);
}
public static DXFUtilitiesResult RequestBoundariesFromLineWork(string dxfFileContext, DxfUnitsType units, uint maxBoundariesToProcess, bool convertLineStringCoordsToPolygon, out PolyLineBoundaries boundaries)
{
using var stream = new MemoryStream(Convert.FromBase64String(dxfFileContext));
return(DXFFileUtilities.RequestBoundariesFromLineWork(stream, units, maxBoundariesToProcess, convertLineStringCoordsToPolygon, out boundaries));
}
public static DXFUtilitiesResult RequestBoundariesFromLineWork(MemoryStream dxfFileStream, DxfUnitsType units, uint maxBoundariesToProcess, bool convertLineStringCoordsToPolygon, out PolyLineBoundaries boundaries)
{
boundaries = null;
var reader = new DXFReader(dxfFileStream, units);
try
{
if (!reader.FindEntitiesSection())
{
return(DXFUtilitiesResult.NoEntitiesSectionFound);
}
var extractor = new PolyLineBoundaryExtractor(reader);
var result = extractor.Extract(units, maxBoundariesToProcess, convertLineStringCoordsToPolygon);
if (result == DXFUtilitiesResult.Ok)
{
boundaries = extractor.Boundaries;
}
return(result);
}
catch (FormatException e)
{
Log.LogError(e, "DXF file not in expected format");
return(DXFUtilitiesResult.UnknownFileFormat);
}
catch (Exception e)
{
Log.LogError(e, "Exception processing DXF file");
throw;
}
}
