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0031825: Data Exchange, STEP - NULL dereference while re-exporting model with empty Datum description

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Fix adding name and description of the datum
This commit is contained in:
dpasukhi 2020-10-17 16:21:51 +03:00 committed by bugmaster
parent 1b9cb073b9
commit 692decba26
3 changed files with 47 additions and 3 deletions
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4
src/STEPCAFControl/STEPCAFControl_Reader.cxx
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@ -2527,7 +2527,7 @@ Standard_Boolean STEPCAFControl_Reader::setDatumToXCAF(const Handle(StepDimTol_D
// Create datum target object
if (isValidDT) {
TDF_Label aDatL = aDGTTool->AddDatum();
TDF_Label aDatL = aDGTTool->AddDatum(theDat->Name(), theDat->Description(), theDat->Identification());
myGDTMap.Bind(aDT, aDatL);
aDGTTool->Lock(aDatL);
aDat = XCAFDoc_Datum::Set(aDatL);
@ -2549,7 +2549,7 @@ Standard_Boolean STEPCAFControl_Reader::setDatumToXCAF(const Handle(StepDimTol_D
if (aShapeLabels.Length() > 0 || !isExistDatumTarget) {
// Create object for datum
TDF_Label aDatL = aDGTTool->AddDatum();
TDF_Label aDatL = aDGTTool->AddDatum(theDat->Name(), theDat->Description(), theDat->Identification());
myGDTMap.Bind(theDat, aDatL);
// bind datum label with all reference datum_feature entities
for (Standard_Integer i = 1; i <= aSAs.Length(); i++) {

6
src/STEPCAFControl/STEPCAFControl_Writer.cxx
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@ -3466,8 +3466,12 @@ Standard_Boolean STEPCAFControl_Writer::WriteDGTs (const Handle(XSControl_WorkSe
Handle(XCAFDoc_Datum) DatumAttr;
if(!DatumL.FindAttribute(XCAFDoc_Datum::GetID(),DatumAttr)) continue;
Handle(TCollection_HAsciiString) aName = DatumAttr->GetName();
Handle(TCollection_HAsciiString) aDescription = DatumAttr->GetDescription();
Handle(TCollection_HAsciiString) anIdentification = DatumAttr->GetIdentification();
Handle(TCollection_HAsciiString) aDescription = DatumAttr->GetDescription();
if (aDescription.IsNull())
{
aDescription = new TCollection_HAsciiString();
}
Handle(StepDimTol_DatumFeature) DF = new StepDimTol_DatumFeature;
Handle(StepDimTol_Datum) aDatum = new StepDimTol_Datum;
DF->Init(aName, new TCollection_HAsciiString, PDS, StepData_LTrue);

40
tests/bugs/step/bug31825 Normal file
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@ -0,0 +1,40 @@
puts "================"
puts "0031825: Data Exchange, STEP - NULL dereference while re-exporting model with empty Datum description"
puts "================"
puts ""
pload OCAF
param write.step.schema AP242DIS
catch { Close D_First }
catch { Close D_Sec }
# Read file
set Path ${imagedir}/${casename}.stp
ReadStep D_First [locate_data_file bug26689_nist_ctc_04_asme1_ap242.stp]
set baseDGTDump [XDumpNbDGTs D_First f]
WriteStep D_First $Path
ReadStep D_Sec $Path
file delete $Path
set newDGTDump [XDumpNbDGTs D_Sec f]
XGetOneShape res D_Sec
# Checking
checkshape res
checknbshapes res -face 518 -wire 623 -compound 1
set isOK 1
set nb_ref [llength $newDGTDump]
for { set i 0 } { $i < $nb_ref } { incr i } {
set refstr [lindex $baseDGTDump $i]
set curstr [lindex $newDGTDump $i]
if {[string equal $refstr $curstr] == 0} {
set isOK 0
}
}
if {$isOK == 0} {
puts "Error: wrong export DGT and PMI"
}
# set default parameter
param write.step.schema AP214IS