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TestDICOMMetaData.cxx
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#include "vtkDICOMMetaData.h"
#include "vtkDICOMValue.h"
#include "vtkDICOMDictionary.h"
#include "vtkDICOMSequence.h"
#include "vtkDICOMItem.h"
#include "vtkDICOMTagPath.h"
#include <sstream>
#include <string.h>
#include <stdlib.h>
// macro for performing tests
#define TestAssert(t) \
if (!(t)) \
{ \
cout << exename << ": Assertion Failed: " << #t << "\n"; \
cout << __FILE__ << ":" << __LINE__ << "\n"; \
cout.flush(); \
rval |= 1; \
}
int TestDICOMMetaData(int argc, char *argv[])
{
int rval = 0;
const char *exename = (argc > 0 ? argv[0] : "TestDICOMMetaData");
// remove path portion of exename
const char *cp = exename + strlen(exename);
while (cp != exename && cp[-1] != '\\' && cp[-1] != '/') { --cp; }
exename = cp;
vtkDICOMMetaData *metaData = vtkDICOMMetaData::New();
// simple test of adding and removing attributes
metaData->Set(DC::Modality, "CT");
std::string modality = metaData->Get(DC::Modality).AsString();
TestAssert(modality == "CT");
TestAssert(metaData->Has(DC::Modality));
TestAssert(!metaData->Has(DC::AcquisitionDateTime));
TestAssert(!metaData->Get(DC::AcquisitionDateTime).IsValid());
metaData->Set(DC::Modality, "MR");
modality = metaData->Get(DC::Modality).AsString();
TestAssert(modality == "MR");
metaData->Erase(DC::Modality);
TestAssert(!metaData->Has(DC::Modality));
TestAssert(metaData->GetNumberOfDataElements() == 0);
metaData->Erase(DC::Modality);
metaData->Clear();
TestAssert(metaData->GetNumberOfDataElements() == 0);
metaData->Set(DC::Modality, "NM");
modality = metaData->Get(DC::Modality).AsString();
TestAssert(modality == "NM");
TestAssert(metaData->GetNumberOfDataElements() == 1);
metaData->Clear();
TestAssert(metaData->GetNumberOfDataElements() == 0);
// test of multiple instances in a single meta data object
metaData->SetNumberOfInstances(3);
metaData->Set(DC::Modality, "CT");
TestAssert(metaData->Has(DC::Modality));
modality = metaData->Get(DC::Modality).AsString();
TestAssert(modality == "CT");
modality = metaData->Get(0, DC::Modality).AsString();
TestAssert(modality == "CT");
modality = metaData->Get(1, DC::Modality).AsString();
TestAssert(modality == "CT");
modality = metaData->Get(2, DC::Modality).AsString();
TestAssert(modality == "CT");
metaData->Set(1, DC::Modality, "MR");
modality = metaData->Get(DC::Modality).AsString();
TestAssert(modality == "CT");
modality = metaData->Get(0, DC::Modality).AsString();
TestAssert(modality == "CT");
modality = metaData->Get(1, DC::Modality).AsString();
TestAssert(modality == "MR");
modality = metaData->Get(2, DC::Modality).AsString();
TestAssert(modality == "CT");
metaData->Set(DC::Modality, "MR");
modality = metaData->Get(DC::Modality).AsString();
TestAssert(modality == "MR");
modality = metaData->Get(0, DC::Modality).AsString();
TestAssert(modality == "MR");
modality = metaData->Get(1, DC::Modality).AsString();
TestAssert(modality == "MR");
modality = metaData->Get(2, DC::Modality).AsString();
TestAssert(modality == "MR");
TestAssert(metaData->GetNumberOfDataElements() == 1);
TestAssert(metaData->GetNumberOfInstances() == 3);
metaData->Erase(DC::Modality);
TestAssert(metaData->GetNumberOfDataElements() == 0);
metaData->Initialize();
TestAssert(metaData->GetNumberOfInstances() == 1);
// test iterating through the data elements
vtkDICOMDataElementIterator iter =
metaData->Begin();
vtkDICOMDataElementIterator iterEnd =
metaData->End();
TestAssert(iter == iterEnd);
metaData->Set(DC::Modality, "CT");
const char *acquisitionTime = "20130126080000.000000+0700";
metaData->Set(DC::AcquisitionDateTime, acquisitionTime);
iter = metaData->Begin();
iterEnd = metaData->End();
int n = metaData->GetNumberOfDataElements();
TestAssert(n == 2);
for (int i = 0; i < n; i++)
{
if (i == 0)
{
TestAssert(iter->GetTag() == DC::AcquisitionDateTime);
TestAssert(iter->GetVR() == vtkDICOMVR::DT);
TestAssert(iter->GetValue().GetVL() == 26);
TestAssert(iter->GetValue().AsString() == acquisitionTime);
}
else
{
TestAssert(iter->GetTag() == DC::Modality);
TestAssert(iter->GetVR() == vtkDICOMVR::CS);
TestAssert(iter->GetValue().GetVL() == 2);
TestAssert(iter->GetValue().AsString() == "CT");
}
++iter;
}
TestAssert(iter == iterEnd);
metaData->Clear();
// test iterating through the data elements with multiple instances
metaData->SetNumberOfInstances(2);
metaData->Set(0, DC::Modality, "CT");
metaData->Set(1, DC::Modality, "MR");
metaData->Set(DC::AcquisitionDateTime, acquisitionTime);
iter = metaData->Begin();
iterEnd = metaData->End();
n = metaData->GetNumberOfDataElements();
TestAssert(n == 2);
for (int i = 0; i < n; i++)
{
if (i == 0)
{
TestAssert(iter->GetTag() == DC::AcquisitionDateTime);
TestAssert(iter->GetValue().AsString() == acquisitionTime);
}
else
{
// two values multiplexed together in one value
TestAssert(iter->GetTag() == DC::Modality);
vtkDICOMValue v = iter->GetValue();
TestAssert(v.GetNumberOfValues() == 2);
const vtkDICOMValue *vp = v.GetMultiplexData();
TestAssert(vp[0].AsString() == "CT");
TestAssert(vp[1].AsString() == "MR");
}
++iter;
}
TestAssert(iter == iterEnd);
metaData->Clear();
// test the Find() method
metaData->SetNumberOfInstances(2);
metaData->Set(0, DC::Modality, "CT");
metaData->Set(1, DC::Modality, "MR");
metaData->Set(DC::AcquisitionDateTime, acquisitionTime);
iter = metaData->Find(DC::AcquisitionDateTime);
TestAssert(iter->GetValue().AsString() == acquisitionTime);
iter = metaData->Find(DC::Modality);
if (iter != metaData->End())
{
vtkDICOMValue v = iter->GetValue();
const vtkDICOMValue *vp = v.GetMultiplexData();
TestAssert(vp[0].AsString() == "CT");
TestAssert(vp[1].AsString() == "MR");
}
iter = metaData->Find(DC::StudyDate);
TestAssert(iter == metaData->End());
metaData->Clear();
// ------
// test sequence access: some miscellaneous UIDs to use
const char *classUID = "1.2.840.10008.5.1.4.1.1.4";
const char *instanceUIDFormat =
"1.2.840.113619.2.176.2025.4110284.7408.1276101323.%i";
char instanceUID[54];
// create the ReferencedSeriesSequence
vtkDICOMSequence seq(1);
// only add one item to the outer sequence
for (int i = 0; i < 1; i++)
{
// add the first data element to the item
vtkDICOMItem item(metaData);
item.Set(DC::SeriesInstanceUID,
vtkDICOMValue(vtkDICOMVR::UI,
"1.2.840.113619.2.176.2025.4110284.7478.1276100777.239"));
// the second data element will be a nested sequence
vtkDICOMSequence seq2;
// add ten items to this sequence
for (int j = 0; j < 10; j++)
{
// create a unique InstanceUID
snprintf(instanceUID, sizeof(instanceUID), instanceUIDFormat, 255+j);
vtkDICOMItem item2(metaData);
item2.Set(DC::ReferencedSOPClassUID,
vtkDICOMValue(vtkDICOMVR::UI, classUID));
item2.Set(DC::ReferencedSOPInstanceUID,
vtkDICOMValue(vtkDICOMVR::UI, instanceUID));
seq2.AddItem(item2);
}
// create the ReferencedInstanceSequence from the items
item.Set(DC::ReferencedInstanceSequence, seq2);
// add this sequence-containing item to the original sequence
seq.SetItem(i, item);
}
// test nested access with tag path
metaData->Set(DC::ReferencedSeriesSequence, seq);
vtkDICOMValue v2 = metaData->Get(
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID));
TestAssert(v2.GetCharData() != nullptr);
if (v2.GetCharData())
{
TestAssert(
strcmp(v2.GetCharData(),
"1.2.840.113619.2.176.2025.4110284.7478.1276100777.239") == 0);
}
// test access two levels deep
v2 = metaData->Get(
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::ReferencedInstanceSequence, 0,
DC::ReferencedSOPClassUID));
TestAssert(v2.GetCharData() != nullptr);
if (v2.GetCharData())
{
TestAssert(strcmp(v2.GetCharData(), "1.2.840.10008.5.1.4.1.1.4") == 0);
}
metaData->Clear();
// ------
// test setting sequences via tagpath
metaData->Set(
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID),
vtkDICOMValue(vtkDICOMVR::UI,
"1.2.840.113619.2.176.2025.4110284.7478.1276100777.239"));
for (int j = 0; j < 10; j++)
{
// create a unique InstanceUID
snprintf(instanceUID, sizeof(instanceUID), instanceUIDFormat, 255+j);
metaData->Set(
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::ReferencedInstanceSequence, j,
DC::ReferencedSOPClassUID),
classUID);
metaData->Set(
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::ReferencedInstanceSequence, j,
DC::ReferencedSOPInstanceUID),
instanceUID);
}
// test nested access with tag path
v2 = metaData->Get(
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID));
TestAssert(v2.GetCharData() != nullptr);
if (v2.GetCharData())
{
TestAssert(
strcmp(v2.GetCharData(),
"1.2.840.113619.2.176.2025.4110284.7478.1276100777.239") == 0);
}
// test access two levels deep
v2 = metaData->Get(
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::ReferencedInstanceSequence, 9,
DC::ReferencedSOPClassUID));
TestAssert(v2.GetCharData() != nullptr);
if (v2.GetCharData())
{
TestAssert(strcmp(v2.GetCharData(), "1.2.840.10008.5.1.4.1.1.4") == 0);
}
v2 = metaData->Get(
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::ReferencedInstanceSequence, 8,
DC::ReferencedSOPInstanceUID));
TestAssert(v2.GetCharData() != nullptr);
if (v2.GetCharData())
{
TestAssert(0 == strcmp(
v2.GetCharData(),
"1.2.840.113619.2.176.2025.4110284.7408.1276101323.263"));
}
metaData->Clear();
// ------
// test inheritance of XS=US,SS and CharacterSet
// first, check default XS=US
metaData->Set(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::RealWorldValueLastValueMapped), 4095);
v2 = metaData->Get(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::RealWorldValueLastValueMapped));
TestAssert(v2.GetVR() == vtkDICOMVR::US);
// next, check default CharacterSet=ISO_IR_6
metaData->Set(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::LUTExplanation), "Too Hot");
v2 = metaData->Get(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::LUTExplanation));
TestAssert(v2.GetCharacterSet() == vtkDICOMCharacterSet::ISO_IR_6);
metaData->Clear();
// next, check inheritance of XS=SS
metaData->Set(DC::BitsAllocated, 16);
metaData->Set(DC::PixelRepresentation, 1);
metaData->Set(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::RealWorldValueLastValueMapped), 4095);
v2 = metaData->Get(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::RealWorldValueLastValueMapped));
TestAssert(v2.GetVR() == vtkDICOMVR::SS);
// two levels deep
metaData->Set(
vtkDICOMTagPath(DC::IconImageSequence, 0,
DC::RealWorldValueMappingSequence, 0,
DC::RealWorldValueLastValueMapped), 4095);
v2 = metaData->Get(
vtkDICOMTagPath(DC::IconImageSequence, 0,
DC::RealWorldValueMappingSequence, 0,
DC::RealWorldValueLastValueMapped));
TestAssert(v2.GetVR() == vtkDICOMVR::SS);
metaData->Clear();
// check inheritance of ISO_IR_100
metaData->Set(DC::SpecificCharacterSet, "ISO_IR 100");
metaData->Set(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::LUTExplanation), "Too Hot");
v2 = metaData->Get(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::LUTExplanation));
TestAssert(v2.GetCharacterSet() == vtkDICOMCharacterSet::ISO_IR_100);
// override with new item-specific character set
metaData->Set(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::SpecificCharacterSet), "\\ISO 2022 IR 149");
metaData->Set(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::LUTExplanation), "Too Hot");
v2 = metaData->Get(
vtkDICOMTagPath(DC::RealWorldValueMappingSequence, 0,
DC::LUTExplanation));
TestAssert(v2.GetCharacterSet() == vtkDICOMCharacterSet::ISO_2022_IR_149);
// two levels deep
metaData->Set(
vtkDICOMTagPath(DC::IconImageSequence, 0,
DC::RealWorldValueMappingSequence, 0,
DC::LUTExplanation), "Too Hot");
v2 = metaData->Get(
vtkDICOMTagPath(DC::IconImageSequence, 0,
DC::RealWorldValueMappingSequence, 0,
DC::LUTExplanation));
TestAssert(v2.GetCharacterSet() == vtkDICOMCharacterSet::ISO_IR_100);
metaData->Clear();
// ------
// if a non-sequence is used in a path, the call is ignored
metaData->Set(
vtkDICOMTagPath(DC::SeriesInstanceUID, 0,
DC::SeriesInstanceUID),
vtkDICOMValue(vtkDICOMVR::UI,
"1.2.840.113619.2.176.2025.4110284.7478.1276100777.239"));
TestAssert(metaData->GetNumberOfDataElements() == 0);
// ------
// test using a non-sequence that already exists
metaData->Set(DC::SeriesInstanceUID,
"1.2.840.113619.2.176.2025.4110284.7478.1276100777.239");
metaData->Set(
vtkDICOMTagPath(DC::SeriesInstanceUID, 0,
DC::SeriesInstanceUID),
vtkDICOMValue(vtkDICOMVR::UI,
"1.2.840.113619.2.176.2025.4110284.7478.1276100777.239"));
v2 = metaData->Get(
vtkDICOMTagPath(DC::SeriesInstanceUID, 0,
DC::SeriesInstanceUID));
TestAssert(!v2.IsValid());
v2 = metaData->Get(vtkDICOMTagPath(DC::SeriesInstanceUID));
if (v2.GetCharData())
{
TestAssert(
strcmp(v2.GetCharData(),
"1.2.840.113619.2.176.2025.4110284.7478.1276100777.239") == 0);
}
// test using a tag path with a private sequence
metaData->Set(
vtkDICOMTagPath(vtkDICOMTag(0x0009, 0x1013), 0,
vtkDICOMTag(0x0009, 0x1014), 1,
vtkDICOMTag(0x0009, 0x1015)),
vtkDICOMValue(vtkDICOMVR::UI, "1.2.840.113619.2.176.2025"));
v2 = metaData->Get(
vtkDICOMTagPath(vtkDICOMTag(0x0009, 0x1013), 0,
vtkDICOMTag(0x0009, 0x1014), 1,
vtkDICOMTag(0x0009, 0x1015)));
TestAssert(v2.AsString() == "1.2.840.113619.2.176.2025");
// make sure the "skipped" item returns nothing
v2 = metaData->Get(
vtkDICOMTagPath(vtkDICOMTag(0x0009, 0x1013), 0,
vtkDICOMTag(0x0009, 0x1014), 0,
vtkDICOMTag(0x0009, 0x1015)));
TestAssert(!v2.IsValid());
metaData->Clear();
// ------
// Test setting tag paths with indices
metaData->SetNumberOfInstances(3);
metaData->Set(0,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID),
"1.2.840.113619.2.176.2025.4110284.747");
metaData->Set(2,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID),
"1.2.840.113619.2.176.2025.4110284.749");
v2 = metaData->Get(0,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID));
TestAssert(v2.AsString() == "1.2.840.113619.2.176.2025.4110284.747");
v2 = metaData->Get(1,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID));
TestAssert(!v2.IsValid());
v2 = metaData->Get(2,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID));
TestAssert(v2.AsString() == "1.2.840.113619.2.176.2025.4110284.749");
// Set without index
metaData->Set(
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID),
"1.2.840.113619.2.176.2025.4110284.747");
for (int i = 0; i < 3; i++)
{
v2 = metaData->Get(i,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID));
TestAssert(v2.AsString() == "1.2.840.113619.2.176.2025.4110284.747");
}
metaData->Clear();
// ------
// Test setting tag paths with indices after setting without indices
metaData->SetNumberOfInstances(3);
metaData->Set(
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID),
"1.2.840.113619.2.176.2025.4110284.747");
metaData->Set(1,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID),
vtkDICOMValue());
metaData->Set(2,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID),
"1.2.840.113619.2.176.2025.4110284.749");
v2 = metaData->Get(0,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID));
TestAssert(v2.AsString() == "1.2.840.113619.2.176.2025.4110284.747");
v2 = metaData->Get(1,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID));
TestAssert(!v2.IsValid());
v2 = metaData->Get(2,
vtkDICOMTagPath(DC::ReferencedSeriesSequence, 0,
DC::SeriesInstanceUID));
TestAssert(v2.AsString() == "1.2.840.113619.2.176.2025.4110284.749");
metaData->Clear();
// ------
// Test setting invalid value attributes
metaData->SetNumberOfInstances(3);
metaData->Set(DC::Modality, "CT");
metaData->Set(DC::Modality, "MR");
TestAssert(metaData->GetNumberOfDataElements() == 1);
metaData->Set(DC::Modality, vtkDICOMValue());
TestAssert(metaData->GetNumberOfDataElements() == 0);
metaData->Set(0, DC::Modality, vtkDICOMValue());
TestAssert(metaData->GetNumberOfDataElements() == 0);
metaData->Set(DC::Modality, "MR");
metaData->Set(0, DC::Modality, "CT");
TestAssert(metaData->Get(0, DC::Modality).AsString() == "CT");
TestAssert(metaData->Get(1, DC::Modality).AsString() == "MR");
TestAssert(metaData->Get(2, DC::Modality).AsString() == "MR");
metaData->Set(1, DC::Modality, vtkDICOMValue());
TestAssert(metaData->Get(0, DC::Modality).AsString() == "CT");
TestAssert(metaData->Get(1, DC::Modality).IsValid() == false);
TestAssert(metaData->Get(2, DC::Modality).AsString() == "MR");
metaData->Set(0, DC::Modality, vtkDICOMValue());
metaData->Set(2, DC::Modality, vtkDICOMValue());
TestAssert(metaData->GetNumberOfDataElements() == 0);
metaData->Set(0, DC::Modality, "CT");
TestAssert(metaData->Get(0, DC::Modality).AsString() == "CT");
TestAssert(metaData->Get(1, DC::Modality).IsValid() == false);
TestAssert(metaData->Get(2, DC::Modality).IsValid() == false);
metaData->Clear();
// ------
// Test DeepCopy
metaData->SetNumberOfInstances(3);
metaData->Set(DC::Modality, "CT");
metaData->Set(0, DC::Modality, "MR");
metaData->Set(DC::AcquisitionDateTime, acquisitionTime);
metaData->DeepCopy(metaData);
TestAssert(metaData->GetNumberOfInstances() == 3);
TestAssert(metaData->GetNumberOfDataElements() == 2);
vtkDICOMMetaData *mcopy = vtkDICOMMetaData::New();
mcopy->DeepCopy(metaData);
metaData->DeepCopy(mcopy);
mcopy->DeepCopy(metaData);
metaData->DeepCopy(mcopy);
mcopy->DeepCopy(metaData);
TestAssert(mcopy->GetNumberOfInstances() == 3);
TestAssert(mcopy->GetNumberOfDataElements() == 2);
TestAssert(mcopy->Get(0, DC::Modality).AsString() == "MR");
TestAssert(mcopy->Get(1, DC::Modality).AsString() == "CT");
TestAssert(mcopy->Get(
DC::AcquisitionDateTime).AsString() == acquisitionTime);
mcopy->Initialize();
metaData->DeepCopy(mcopy);
TestAssert(metaData->GetNumberOfInstances() == 1);
TestAssert(metaData->GetNumberOfDataElements() == 0);
mcopy->Delete();
metaData->Delete();
return rval;
}
#ifdef VTK_DICOM_SEPARATE_TESTS
int main(int argc, char *argv[])
{
return TestDICOMMetaData(argc, argv);
}
#endif