/// <summary>
/// Construct a DXFReader given a stream reader representing teh DXF file content and the units to use
/// </summary>
/// <param name="dxfFile"></param>
/// <param name="units"></param>
public DXFReader(MemoryStream dxfFile, DxfUnitsType units)
{
DXFFileIsBinary = IsBinaryDXF(dxfFile, out _dXFFileIsPostR13c3);
if (DXFFileIsBinary)
{
_binarydxfFile = dxfFile;
_binarydxfFile.Position = BinaryACADDXFSignature.Length; // Skip the sentinel
}
else
{
dxfFile.Position = 0;
_aSCIIdxfFile = new StreamReader(dxfFile);
}
Units = units;
DXFImportConvFactor = units switch
{
DxfUnitsType.Meters => UnitUtils.DistToMeters(DistanceUnitsType.Meters),
DxfUnitsType.UsSurveyFeet => UnitUtils.DistToMeters(DistanceUnitsType.US_feet),
DxfUnitsType.ImperialFeet => UnitUtils.DistToMeters(DistanceUnitsType.Feet),
_ => 1.0
};
}
}
public void Units(DxfUnitsType sourceUnits, DistanceUnitsType destUnits)
{
var reader = new DXFReader(CreateTestPolyline(), sourceUnits);
reader.Should().NotBeNull();
reader.FindEntitiesSection().Should().BeTrue();
var success = reader.GetBoundaryFromPolyLineEntity(true, out var eof, out var boundary);
success.Should().BeTrue();
boundary.Boundary.Points.Should().BeEquivalentTo(new List <FencePoint>
{
new FencePoint(0, 0),
new FencePoint(10 * UnitUtils.DistToMeters(destUnits), 0),
new FencePoint(0, 10 * UnitUtils.DistToMeters(destUnits))
});
}
public static double DXFDistance(double value, DistanceUnitsType outputUnits)
{
// Takes a value in SI units (ie: meters) and converts it to the project units for writing out to a DXF file
return(value / UnitUtils.DistToMeters(outputUnits));
}
public bool ConstructSVLCenterlineDXFAlignment(NFFGuidableAlignmentEntity alignment,
out DesignProfilerRequestResult calcResult, out MemoryStream ms)
{
ms = null;
if ((calcResult = Validate(alignment)) != DesignProfilerRequestResult.OK)
{
return(false);
}
DXF = new DXFFile();
DXF.Layers.Add("B");
// Run through the entities in the alignment and add them to the DXF file
for (var I = 0; I < alignment.Entities.Count; I++)
{
AddEntityToDXF(alignment.Entities[I]);
}
// Construct the stationing text entities along the alignment
var StationIncrement = AlignmentLabelingInterval;
var CurrentStation = alignment.StartStation;
while (CurrentStation <= alignment.EndStation + 0.001)
{
alignment.ComputeXY(CurrentStation, 0, out var X1, out var Y1);
alignment.ComputeXY(CurrentStation, -1, out var X2, out var Y2);
GeometryUtils.RectToPolar(Y1, X1, Y2, X2, out var textOrientation, out _);
DXF.Entities.Add(new DXFTextEntity("B",
kAlignmentCenterLineColor,
X1, Y1, Consts.NullDouble,
$"{CurrentStation / UnitUtils.DistToMeters(Units):F2}",
textOrientation - (Math.PI / 2),
2,
"Arial",
//[],
//0,
0, 0));
if (CurrentStation + StationIncrement <= alignment.EndStation)
{
CurrentStation = CurrentStation + StationIncrement;
}
else if (CurrentStation > alignment.EndStation - 0.001)
{
break;
}
else
{
CurrentStation = alignment.EndStation;
}
}
if (DXF.Entities.Count > 0)
{
ms = new MemoryStream();
using var writer = new StreamWriter(ms);
DXF.SaveToFile(writer);
}
calcResult = DesignProfilerRequestResult.OK;
return(true);
}