/// <summary>
/// Parses an XML_MV element and stores the result.
///
/// The XML_MV element should contain the name, compression method (by grade or by group),
/// coordinate order (default or custom)
/// and memory allocation method of the general multivector.
/// </summary>
/// <param name="E">XML_MV element</param>
private static void ParseMVelementAndAttributes(Specification S, XmlElement E)
{
String name = "mv";
bool compressByGrade = true; // false means 'by group'
bool defaultCoordinateOrder = true; // false means 'custom'
GMV.MEM_ALLOC_METHOD memAllocMethod = GMV.MEM_ALLOC_METHOD.FULL;
{ // handle attributes
XmlAttributeCollection A = E.Attributes;
// handle all attributes
for (int i = 0; i < A.Count; i++)
{
// name
if (A[i].Name == XML_NAME)
name = A[i].Value;
// compress method (grade or group
else if (A[i].Name == XML_COMPRESS)
{
if (A[i].Value == XML_BY_GRADE)
compressByGrade = true;
else if (A[i].Value == XML_BY_GROUP)
compressByGrade = false;
else throw new G25.UserException("XML parsing error: Invalid compression '" + A[i].Value + "' in element '" + XML_MV + "'.");
}
// coordinate order
else if (A[i].Name == XML_COORDINATE_ORDER)
{
if (A[i].Value == XML_DEFAULT)
defaultCoordinateOrder = true;
else if (A[i].Value == XML_CUSTOM)
defaultCoordinateOrder = false;
else throw new G25.UserException("XML parsing error: Invalid coordinate order '" + A[i].Value + "' in element '" + XML_MV + "'.");
}
// memory allocation method
else if (A[i].Name == XML_MEM_ALLOC)
{
if (A[i].Value == XML_PARITY_PURE)
memAllocMethod = GMV.MEM_ALLOC_METHOD.PARITY_PURE;
else if (A[i].Value == XML_FULL)
memAllocMethod = GMV.MEM_ALLOC_METHOD.FULL;
else if (A[i].Value == XML_DYNAMIC)
memAllocMethod = GMV.MEM_ALLOC_METHOD.DYNAMIC;
else throw new G25.UserException("XML parsing error: Invalid memory allocation method '" + A[i].Value + "' in element '" + XML_MV + "'.");
}
}
} // end of 'handle attributes'
// check for sanity
if ((compressByGrade == false) && (defaultCoordinateOrder == true))
{
throw new G25.UserException("Cannot compress by group without a custom coordinate order. Please specify a coordinate order in the '" + XML_MV + "' element.");
}
// basis blades go here
List<List<G25.rsbbp.BasisBlade>> basisBlades = null;
if (defaultCoordinateOrder)
{
// check for sanity
if (E.FirstChild != null)
throw new G25.UserException("The coordinate order is set to default, but the multivector definition element '" + XML_MV + "' contains a custom coordinate order.");
basisBlades = S.m_basisBladeParser.GetDefaultBasisBlades();
}
else
{
basisBlades = S.m_basisBladeParser.ParseMVbasisBlades(E);
if (compressByGrade)
basisBlades = S.m_basisBladeParser.SortBasisBladeListByGrade(basisBlades);
}
if (rsbbp.ConstantsInList(basisBlades))
throw new G25.UserException("Constant coordinate(s) were specified in the general multivector type (XML element '" + XML_MV + "')");
S.SetGeneralMV(new GMV(name, rsbbp.ListToDoubleArray(basisBlades), memAllocMethod));
}