private MphtxtMesh ReadMeshObj()
{
var objectVersion = ReadInt();
var dimension = ReadInt();
if (dimension != 2 && dimension != 3)
{
throw new InvalidDataException(Strings.MphtxtReader_ReadMeshObj_NotSupportedDimension);
}
var meshPointCount = ReadInt();
var lowestMeshPointIndex = ReadInt();
var coordinates = new CoordinateCollection(dimension, meshPointCount);
for (int i = 0; i < meshPointCount; i++)
{
ReadDoubles(coordinates[i].Storage.Span);
}
var elementTypeCount = ReadInt();
var geometryElements = new Dictionary <string, GeometryElementCollection>();
for (int typeId = 0; typeId < elementTypeCount; typeId++)
{
var typeName = ReadString();
var nodePerEle = ReadInt();
var elementCount = ReadInt();
var elements = new GeometryElementCollection(elementCount, nodePerEle);
geometryElements[typeName] = elements;
for (int i = 0; i < elementCount; i++)
{
ReadInts(elements[i].AsSpan());
for (int j = 0; j < nodePerEle; ++j)
{
elements[i][j] -= lowestMeshPointIndex;
}
}
var indexCount = ReadInt();
if (indexCount != elementCount)
{
throw new InvalidDataException(
$"Type {typeName} has different element count ({elementCount}) and index count ({indexCount}).");
}
for (int i = 0; i < indexCount; i++)
{
elements[i].EntityIndex = ReadInt();
}
}
return(new MphtxtMesh(coordinates, geometryElements));
}
/// <summary>
/// Initializes an enumerator.
/// </summary>
/// <param name="container">The collection to be enumerated.</param>
public Enumerator(GeometryElementCollection container)
{
this.container = container ?? throw new ArgumentNullException(nameof(container));
index = -1;
}