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occt/src/RWStepDimTol/RWStepDimTol_RWDatumReferenceElement.cxx
ika 6595eee796 0026859: Export of GDT from XCAF to STEP 
Export/Import:
Add export of dimensions, geometric tolerances and datums, according to AP242.
Add missing STEP entities.
Corrections.

XCAF:
Add new attributes to Datum object: DatumTargetNumber.
Supplement enum XCAFDimTolObjects_GeomToleranceZoneModif.
Corrections.

Test cases:
gdt export A1
gdt export A2
gdt export A3
gdt export A4
gdt export A5
2015-12-04 13:16:58 +03:00

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// Created on: 2015-07-16
// Created by: Irina KRYLOVA
// Copyright (c) 2015 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <RWStepDimTol_RWDatumReferenceElement.hxx>
#include <Interface_EntityIterator.hxx>
#include <StepData_StepReaderData.hxx>
#include <StepData_StepWriter.hxx>
#include <StepDimTol_Datum.hxx>
#include <StepDimTol_DatumReferenceElement.hxx>
#include <StepDimTol_DatumReferenceModifier.hxx>
#include <StepDimTol_GeneralDatumReference.hxx>
#include <StepDimTol_HArray1OfDatumReferenceElement.hxx>
#include <StepDimTol_HArray1OfDatumReferenceModifier.hxx>
#include <StepRepr_ProductDefinitionShape.hxx>
//=======================================================================
//function : RWStepDimTol_RWDatumReferenceElement
//purpose :
//=======================================================================
RWStepDimTol_RWDatumReferenceElement::RWStepDimTol_RWDatumReferenceElement ()
{
}
//=======================================================================
//function : ReadStep
//purpose :
//=======================================================================
void RWStepDimTol_RWDatumReferenceElement::ReadStep (const Handle(StepData_StepReaderData)& data,
const Standard_Integer num,
Handle(Interface_Check)& ach,
const Handle(StepDimTol_DatumReferenceElement) &ent) const
{
// Check number of parameters
if ( ! data->CheckNbParams(num,6,ach,"datum_reference_element") ) return;
// Inherited fields of ShapeAspect
Handle(TCollection_HAsciiString) aShapeAspect_Name;
data->ReadString (num, 1, "shape_aspect.name", ach, aShapeAspect_Name);
Handle(TCollection_HAsciiString) aShapeAspect_Description;
if ( data->IsParamDefined (num,2) ) {
data->ReadString (num, 2, "shape_aspect.description", ach, aShapeAspect_Description);
}
Handle(StepRepr_ProductDefinitionShape) aShapeAspect_OfShape;
data->ReadEntity (num, 3, "shape_aspect.of_shape", ach, STANDARD_TYPE(StepRepr_ProductDefinitionShape), aShapeAspect_OfShape);
StepData_Logical aShapeAspect_ProductDefinitional;
data->ReadLogical (num, 4, "shape_aspect.product_definitional", ach, aShapeAspect_ProductDefinitional);
// Inherited fields from GeneralDatumReference
StepDimTol_DatumOrCommonDatum aBase;
Handle(StepDimTol_Datum) aDatum;
Interface_ParamType aType = data->ParamType(num, 5);
if (aType == Interface_ParamIdent) {
data->ReadEntity(num, 5, "general_datum_reference.base", ach, STANDARD_TYPE(StepDimTol_Datum), aDatum);
aBase.SetValue(aDatum);
}
else {
Handle(StepDimTol_HArray1OfDatumReferenceElement) anItems;
Handle(StepDimTol_DatumReferenceElement) anEnt;
Standard_Integer nbSub;
if (data->ReadSubList (num,5,"general_datum_reference.base",ach,nbSub)) {
aType = data->ParamType(nbSub, 1);
if (aType == Interface_ParamSub) {
Standard_Integer aNewNbSub;
if (data->ReadSubList (nbSub,1,"general_datum_reference.base",ach,aNewNbSub)) {
nbSub = aNewNbSub;
}
}
Standard_Integer nbElements = data->NbParams(nbSub);
anItems = new StepDimTol_HArray1OfDatumReferenceElement (1, nbElements);
for (Standard_Integer i = 1; i <= nbElements; i++) {
if (data->ReadEntity(nbSub, i,"datum_reference_element", ach, STANDARD_TYPE(StepDimTol_DatumReferenceElement), anEnt))
anItems->SetValue(i, anEnt);
}
}
aBase.SetValue(anItems);
}
Standard_Integer nbSub;
Standard_Boolean hasModifiers = data->ReadSubList(num, 6, "general_datum_reference.modifiers", ach, nbSub, Standard_True);
Handle(StepDimTol_HArray1OfDatumReferenceModifier) aModifiers;
if (hasModifiers) {
StepDimTol_DatumReferenceModifier anEnt;
Standard_Integer nbElements = data->NbParams(nbSub);
aModifiers = new StepDimTol_HArray1OfDatumReferenceModifier (1, nbElements);
for (Standard_Integer i = 1; i <= nbElements; i++) {
aType = data->ParamType (nbSub, i);
if (aType == Interface_ParamIdent) {
Handle(StepDimTol_DatumReferenceModifierWithValue) aDRMWV;
data->ReadEntity(nbSub, i,"datum_reference_modifier_with_value", ach, STANDARD_TYPE(StepDimTol_DatumReferenceModifierWithValue), aDRMWV);
anEnt.SetValue(aDRMWV);
}
else {
Handle(StepData_SelectMember) aMember;
data->ReadMember(nbSub, i, "simple_datum_reference_modifier", ach, aMember);
Standard_CString anEnumText = aMember->EnumText();
Handle(StepDimTol_SimpleDatumReferenceModifierMember) aSDRM = new StepDimTol_SimpleDatumReferenceModifierMember();
aSDRM->SetEnumText(0, anEnumText);
anEnt.SetValue(aSDRM);
}
aModifiers->SetValue(i, anEnt);
}
}
// Initialize entity
ent->Init(aShapeAspect_Name,
aShapeAspect_Description,
aShapeAspect_OfShape,
aShapeAspect_ProductDefinitional,
aBase,
hasModifiers,
aModifiers);
}
//=======================================================================
//function : WriteStep
//purpose :
//=======================================================================
void RWStepDimTol_RWDatumReferenceElement::WriteStep (StepData_StepWriter& SW,
const Handle(StepDimTol_DatumReferenceElement) &ent) const
{
// Inherited fields of ShapeAspect
SW.Send (ent->Name());
SW.Send (ent->Description());
SW.Send (ent->OfShape());
SW.SendLogical (ent->ProductDefinitional());
// Inherited fields from GeneralDatumReference
Standard_Integer aBaseType = ent->Base().CaseNum(ent->Base().Value());
if (aBaseType == 1) {
SW.Send(ent->Base().Datum());
}
else if (aBaseType == 2) {
Handle(StepDimTol_HArray1OfDatumReferenceElement) anArray = (ent->Base()).CommonDatumList();
Standard_Integer i, nb = (anArray.IsNull() ? 0 : anArray->Length());
SW.OpenTypedSub("COMMON_DATUM_LIST");
for (i = 1; i <= nb; i++)
SW.Send (anArray->Value(i));
SW.CloseSub();
}
if (ent->HasModifiers()) {
Standard_Integer i, nb = ent->NbModifiers();
SW.OpenSub();
for (i = 1; i <= nb; i++) {
StepDimTol_DatumReferenceModifier aModifier = ent->ModifiersValue(i);
Standard_Integer aType = aModifier.CaseNum(aModifier.Value());
switch (aType) {
case 1: SW.Send(aModifier.DatumReferenceModifierWithValue()); break;
case 2: SW.SendEnum(aModifier.SimpleDatumReferenceModifierMember()->EnumText());break;
}
}
SW.CloseSub();
}
else {
SW.SendUndef();
}
}
//=======================================================================
//function : Share
//purpose :
//=======================================================================
void RWStepDimTol_RWDatumReferenceElement::Share (const Handle(StepDimTol_DatumReferenceElement) &ent,
Interface_EntityIterator& iter) const
{
// Inherited fields of ShapeAspect
iter.AddItem (ent->OfShape());
// Inherited fields from GeneralDatumReference
Standard_Integer aBaseType = ent->Base().CaseNum(ent->Base().Value());
if (aBaseType == 1) {
iter.AddItem(ent->Base().Datum());
}
else if (aBaseType == 2) {
Handle(StepDimTol_HArray1OfDatumReferenceElement) anArray = ent->Base().CommonDatumList();
Standard_Integer i, nb = (anArray.IsNull() ? 0 : anArray->Length());
for (i = 1; i <= nb; i++)
iter.AddItem (anArray->Value(i));
}
}
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