/// <summary>
/// Calculates net surface area.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="extrusionCreationData">
/// The IFCExtrusionCreationData.
/// </param>
/// <param name="element">
/// The element to calculate the value.
/// </param>
/// <param name="elementType">
/// The element type.
/// </param>
/// <returns>
/// True if the operation succeed, false otherwise.
/// </returns>
public override bool Calculate(ExporterIFC exporterIFC, IFCExtrusionCreationData extrusionCreationData, Element element, ElementType elementType)
{
double areaSum = 0;
SolidMeshGeometryInfo geomInfo = GeometryUtil.GetSolidMeshGeometry(element);
if (geomInfo.SolidsCount() > 0)
{
for (int ii = 0; ii < geomInfo.SolidsCount(); ++ii)
{
foreach (Face f in geomInfo.GetSolids()[ii].Faces)
{
areaSum += f.Area;
}
}
}
if (geomInfo.MeshesCount() > 0)
{
for (int jj = 0; jj < geomInfo.MeshesCount(); ++jj)
{
Mesh geomMesh = geomInfo.GetMeshes()[jj];
XYZ arbitraryOrig = geomMesh.Vertices[0];
for (int ii = 0; ii < geomMesh.NumTriangles; ++ii)
{
MeshTriangle meshTri = geomMesh.get_Triangle(ii);
double a = meshTri.get_Vertex(1).DistanceTo(meshTri.get_Vertex(0));
double b = meshTri.get_Vertex(2).DistanceTo(meshTri.get_Vertex(1));
double c = meshTri.get_Vertex(0).DistanceTo(meshTri.get_Vertex(2));
areaSum += (a + b + c) / 2.0;
}
}
}
m_Area = UnitUtil.ScaleArea(areaSum);
if (m_Area < MathUtil.Eps() * MathUtil.Eps() || m_Area < MathUtil.Eps())
{
if (ParameterUtil.GetDoubleValueFromElementOrSymbol(element, "IfcQtyNetSurfaceArea", out m_Area) == null)
{
if (ParameterUtil.GetDoubleValueFromElementOrSymbol(element, "IfcNetSurfaceArea", out m_Area) == null)
{
ParameterUtil.GetDoubleValueFromElementOrSymbol(element, "NetSurfaceArea", out m_Area);
}
}
m_Area = UnitUtil.ScaleArea(m_Area);
if (m_Area < MathUtil.Eps() * MathUtil.Eps() || m_Area < MathUtil.Eps())
{
return(false);
}
else
{
return(true);
}
}
else
{
return(true);
}
}
/// <summary>
/// Calculates net volume.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="extrusionCreationData">
/// The IFCExtrusionCreationData.
/// </param>
/// <param name="element">
/// The element to calculate the value.
/// </param>
/// <param name="elementType">
/// The element type.
/// </param>
/// <returns>
/// True if the operation succeed, false otherwise.
/// </returns>
public override bool Calculate(ExporterIFC exporterIFC, IFCExtrusionCreationData extrusionCreationData, Element element, ElementType elementType)
{
double vol = 0;
SolidMeshGeometryInfo geomInfo = GeometryUtil.GetSolidMeshGeometry(element);
if (geomInfo.SolidsCount() > 0)
{
for (int ii = 0; ii < geomInfo.SolidsCount(); ++ii)
{
vol += geomInfo.GetSolids()[ii].Volume;
}
}
if (geomInfo.MeshesCount() > 0)
{
for (int jj = 0; jj < geomInfo.MeshesCount(); ++jj)
{
Mesh geomMesh = geomInfo.GetMeshes()[jj];
XYZ arbitraryOrig = geomMesh.Vertices[0];
for (int i = 0; i < geomMesh.NumTriangles; ++i)
{
MeshTriangle meshTri = geomMesh.get_Triangle(i);
XYZ v1 = meshTri.get_Vertex(0) - arbitraryOrig;
XYZ v2 = meshTri.get_Vertex(1) - arbitraryOrig;
XYZ v3 = meshTri.get_Vertex(2) - arbitraryOrig;
vol += v1.DotProduct(v2.CrossProduct(v3)) / 6.0f;
}
}
}
m_Volume = UnitUtil.ScaleVolume(vol);
if (m_Volume < MathUtil.Eps() * MathUtil.Eps() || m_Volume < MathUtil.Eps())
{
if (ParameterUtil.GetDoubleValueFromElementOrSymbol(element, "IfcQtyNetVolume", out m_Volume) == null)
{
if (ParameterUtil.GetDoubleValueFromElementOrSymbol(element, "IfcNetVolume", out m_Volume) == null)
{
ParameterUtil.GetDoubleValueFromElementOrSymbol(element, "NetVolume", out m_Volume);
}
}
m_Volume = UnitUtil.ScaleVolume(m_Volume);
if (m_Volume < MathUtil.Eps())
{
return(false);
}
else
{
return(true);
}
}
else
{
return(true);
}
}