public void BinaryReadWrite()
{
var originalBytes = TestData.GetTestData(@"SourceData\Brep\ImprintRingFace.brep");
Assume.That(originalBytes, Is.Not.Null);
// Read in as ASCII
var originalShape = BRepExchange.ReadASCII(originalBytes);
Assert.IsNotNull(originalShape);
Assert.AreEqual(TopAbs_ShapeEnum.TopAbs_COMPOUND, originalShape.ShapeType());
// Write out
var writtenBytes = BRepExchange.WriteBinary(originalShape, false);
Assert.IsNotNull(writtenBytes);
Assert.AreEqual(7222, writtenBytes.Length);
// Re-read in
var rereadShape = BRepExchange.ReadBinary(writtenBytes);
Assert.IsNotNull(rereadShape);
Assert.AreEqual(TopAbs_ShapeEnum.TopAbs_COMPOUND, rereadShape.ShapeType());
Assert.IsFalse(_HasTriangulation(rereadShape), "HasTriangulation");
Assert.IsTrue(ModelCompare.CompareShape(rereadShape, @"SourceData\Brep\ImprintRingFace"));
}
public void AsciiReadWrite()
{
var originalBytes = TestData.GetTestData(@"SourceData\Brep\ImprintRingFace.brep");
Assume.That(originalBytes, Is.Not.Null);
// Read in
var originalShape = BRepExchange.ReadASCII(originalBytes);
Assert.IsNotNull(originalShape);
Assert.AreEqual(TopAbs_ShapeEnum.TopAbs_COMPOUND, originalShape.ShapeType());
// Write out
var writtenBytes = BRepExchange.WriteASCII(originalShape, false);
Assert.IsNotNull(writtenBytes);
Assert.AreEqual(4900, writtenBytes.Length, 50); // due to some slight differences (e.g. +/-0)
// Re-read in
var rereadShape = BRepExchange.ReadASCII(writtenBytes);
Assert.IsNotNull(rereadShape);
Assert.AreEqual(TopAbs_ShapeEnum.TopAbs_COMPOUND, rereadShape.ShapeType());
Assert.IsFalse(_HasTriangulation(rereadShape), "HasTriangulation");
Assert.IsTrue(ModelCompare.CompareShape(rereadShape, @"SourceData\Brep\ImprintRingFace"));
}
//--------------------------------------------------------------------------------------------------
#endregion
#region IBrepImporter
public bool DoImport(string fileName, out IEnumerable <Body> bodies)
{
bodies = null;
try
{
var bytes = File.ReadAllBytes(fileName);
var occShape =
BRepExchange.ReadASCII(bytes)
?? BRepExchange.ReadBinary(bytes);
if (occShape == null)
{
Messages.Error("Error importing file " + fileName + ".");
return(false);
}
// Get top level transformation for body
var trsf = occShape.Location().Transformation();
var position = trsf.TranslationPart().ToPnt();
var rotation = trsf.GetRotation();
// eliminate top level transformation
occShape.Location(new TopLoc_Location());
var body = Body.Create(Solid.Create(occShape));
body.Position = position;
body.Rotation = rotation;
body.Name = Path.GetFileNameWithoutExtension(fileName);
bodies = new[] { body };
return(true);
}
catch (Exception e)
{
Console.WriteLine(e);
Messages.Exception("Error importing file " + fileName + ".", e);
}
return(false);
}
public void AsciiTriangulation()
{
var originalBytes = TestData.GetTestData(@"SourceData\Brep\Motor-c.brep");
Assume.That(originalBytes, Is.Not.Null);
// Read in
var originalShape = BRepExchange.ReadASCII(originalBytes);
Assert.IsNotNull(originalShape);
Assert.AreEqual(TopAbs_ShapeEnum.TopAbs_COMPOUND, originalShape.ShapeType());
// Write out with triangulation
var writtenBytes = BRepExchange.WriteASCII(originalShape, true);
Assert.IsNotNull(writtenBytes);
Assert.AreEqual(2584000, writtenBytes.Length, 1000); // due to some slight differences (e.g. +/-0)
// Re-read in with triangulation
var rereadShape = BRepExchange.ReadASCII(writtenBytes);
Assert.IsNotNull(rereadShape);
Assert.AreEqual(TopAbs_ShapeEnum.TopAbs_COMPOUND, rereadShape.ShapeType());
Assert.IsTrue(_HasTriangulation(rereadShape), "HasTriangulation");
Assert.IsTrue(ModelCompare.CompareShape(rereadShape, @"SourceData\Brep\Motor-c"));
// Write out w/o triangulation
writtenBytes = BRepExchange.WriteASCII(originalShape, false);
Assert.IsNotNull(writtenBytes);
Assert.AreEqual(1118000, writtenBytes.Length, 1000); // due to some slight differences (e.g. +/-0)
// Re-read in w/o triangulation
rereadShape = BRepExchange.ReadASCII(writtenBytes);
Assert.IsNotNull(rereadShape);
Assert.AreEqual(TopAbs_ShapeEnum.TopAbs_COMPOUND, rereadShape.ShapeType());
Assert.IsFalse(_HasTriangulation(rereadShape), "HasTriangulation");
Assert.IsTrue(ModelCompare.CompareShape(rereadShape, @"SourceData\Brep\Motor-c"));
}
public void BinaryTriangulation()
{
var originalBytes = TestData.GetTestData(@"SourceData\Brep\Motor-c.brep");
Assume.That(originalBytes, Is.Not.Null);
// Read in
var originalShape = BRepExchange.ReadASCII(originalBytes);
Assert.IsNotNull(originalShape);
Assert.AreEqual(TopAbs_ShapeEnum.TopAbs_COMPOUND, originalShape.ShapeType());
// Write out with triangulation
var writtenBytes = BRepExchange.WriteBinary(originalShape, true);
Assert.IsNotNull(writtenBytes);
Assert.AreEqual(1624845, writtenBytes.Length);
// Re-read in with triangulation
var rereadShape = BRepExchange.ReadBinary(writtenBytes);
Assert.IsNotNull(rereadShape);
Assert.AreEqual(TopAbs_ShapeEnum.TopAbs_COMPOUND, rereadShape.ShapeType());
Assert.IsTrue(_HasTriangulation(rereadShape), "HasTriangulation");
Assert.IsTrue(ModelCompare.CompareShape(rereadShape, @"SourceData\Brep\Motor-c"));
// Write out w/o triangulation
writtenBytes = BRepExchange.WriteBinary(originalShape, false);
Assert.IsNotNull(writtenBytes);
Assert.AreEqual(665759, writtenBytes.Length);
// Re-read in w/o triangulation
rereadShape = BRepExchange.ReadBinary(writtenBytes);
Assert.IsNotNull(rereadShape);
Assert.AreEqual(TopAbs_ShapeEnum.TopAbs_COMPOUND, rereadShape.ShapeType());
Assert.IsFalse(_HasTriangulation(rereadShape), "HasTriangulation");
Assert.IsTrue(ModelCompare.CompareShape(rereadShape, @"SourceData\Brep\Motor-c"));
}
//--------------------------------------------------------------------------------------------------
#endregion
#region IBrepExporter
bool IBodyExporter.DoExport(string fileName, IEnumerable <Body> bodies)
{
try
{
var builder = new BRep_Builder();
var compound = new TopoDS_Compound();
builder.MakeCompound(compound);
foreach (var body in bodies)
{
var bodyShape = body.Shape?.GetTransformedBRep();
if (bodyShape == null)
{
Messages.Warning($"BRep Exporter: The body {body.Name} has no valid shape, thus it will not be included in the export.");
continue;
}
builder.Add(compound, bodyShape);
}
var bytes = Settings.ExportBinaryFormat ? BRepExchange.WriteBinary(compound, true) : BRepExchange.WriteASCII(compound, true);
if (bytes == null || bytes.Length == 0)
{
Messages.Error("BRep Exporter: Error generating BRep from body shapes.");
return(false);
}
File.WriteAllBytes(fileName, bytes);
return(true);
}
catch (Exception e)
{
Console.WriteLine(e);
Messages.Exception("Error exporting file " + fileName + ".", e);
}
return(false);
}
//--------------------------------------------------------------------------------------------------
TopoDS_Shape _CreateProfile(TopoDS_Edge firstSpineEdge)
{
var firstSpineCurve = firstSpineEdge.Curve(out double firstParam, out double secondParam);
if (firstSpineCurve == null)
{
return(null);
}
Pnt location = default;
Vec edgeTangent = default;
firstSpineCurve.D1(firstParam, ref location, ref edgeTangent);
Pln plane = new Pln(location, edgeTangent.ToDir());
// Custom sketch
if (_Profile == ProfileType.Custom)
{
return(_CreateProfileFromSketch(plane));
}
// Presets
var edges = _CreateProfileEdges(plane, _SizeX * 0.5, _SizeY * 0.5);
if (_Debug_WriteoutProfile)
{
TopoDS_Builder builder = new();
TopoDS_Compound compound = new();
builder.MakeCompound(compound);
foreach (var edge in edges)
{
builder.Add(compound, edge);
}
File.WriteAllBytes(@"_Debug_PipeProfile.brep", BRepExchange.WriteASCII(compound, false));
}
BRepBuilderAPI_MakeWire wireMaker = new();
foreach (var edge in _CreateProfileEdges(plane, _SizeX * 0.5, _SizeY * 0.5))
{
wireMaker.Add(edge);
}
TopoDS_Shape result = wireMaker.Wire();
if (_Profile == ProfileType.HollowCircle ||
_Profile == ProfileType.HollowRectangle)
{
var innerSizeX = _SizeX * 0.5 - _Thickness;
var innerSizeY = _SizeY * 0.5 - _Thickness;
if (innerSizeX > 0 && (_Flags.HasFlag(PipeFlags.SymmetricProfile) || innerSizeY > 0))
{
TopoDS_Builder builder = new();
TopoDS_Compound compound = new();
builder.MakeCompound(compound);
builder.Add(compound, result);
wireMaker = new();
foreach (var edge in _CreateProfileEdges(plane, innerSizeX, innerSizeY))
{
wireMaker.Add(edge);
}
builder.Add(compound, wireMaker.Wire());
result = compound;
}
}
var face = TopoUtils.CreateFacesFromWires(result, plane);
return(face);
}
