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#12572 VTK: Display stress/strain as folder with component sub-items #13886

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Merged
magnesj merged 1 commit into from
Apr 16, 2026
+109 −1
Merged

#12572 VTK: Display stress/strain as folder with component sub-items #13886

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110 changes: 109 additions & 1 deletion ApplicationLibCode/GeoMech/GeoMechFileInterface/RifVtkReader.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,27 @@

#include <map>

namespace RifVtkFieldNames
{
constexpr const char* separator = "__";

constexpr const char* S = "S_VTK";
constexpr const char* S11 = "S11";
constexpr const char* S22 = "S22";
constexpr const char* S33 = "S33";
constexpr const char* S12 = "S12";
constexpr const char* S13 = "S13";
constexpr const char* S23 = "S23";

constexpr const char* E = "E_VTK";
constexpr const char* E11 = "E11";
constexpr const char* E22 = "E22";
constexpr const char* E33 = "E33";
constexpr const char* E12 = "E12";
constexpr const char* E13 = "E13";
constexpr const char* E23 = "E23";
} // namespace RifVtkFieldNames

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
Expand Down Expand Up @@ -391,11 +412,29 @@ std::map<std::string, std::vector<std::string>> RifVtkReader::scalarNodeFieldAnd
//--------------------------------------------------------------------------------------------------
std::map<std::string, std::vector<std::string>> RifVtkReader::scalarElementFieldAndComponentNames()
{
using namespace RifVtkFieldNames;

std::map<std::string, std::vector<std::string>> retVal;

for ( auto& entry : m_propertyPartDataElements )
{
retVal[entry.first] = {};
// Skip internal S/E component keys (stored as "S_VTK__S11", "E_VTK__E11", etc.)
const std::string& key = entry.first;
if ( key.starts_with( std::string( S ) + separator ) || key.starts_with( std::string( E ) + separator ) ) continue;

retVal[key] = {};
}

// Add S field with components if any S component data was loaded
if ( m_propertyPartDataElements.count( std::string( S ) + separator + S11 ) > 0 )
{
retVal[S] = { S11, S22, S33, S12, S13, S23 };
}

// Add E field with components if any E component data was loaded
if ( m_propertyPartDataElements.count( std::string( E ) + separator + E11 ) > 0 )
{
retVal[E] = { E11, E22, E33, E12, E13, E23 };
}

return retVal;
Expand Down Expand Up @@ -507,6 +546,23 @@ void RifVtkReader::readElementField( const std::string& fieldName
int frameIndex,
std::vector<std::vector<float>*>* resultValues )
{
// S and E fields have 6 components stored as individual internal keys with a separator
if ( fieldName == RifVtkFieldNames::S || fieldName == RifVtkFieldNames::E )
{
using namespace RifVtkFieldNames;
static const std::vector<std::string> sComponents = { S11, S22, S33, S12, S13, S23 };
static const std::vector<std::string> eComponents = { E11, E22, E33, E12, E13, E23 };
const auto& components = ( fieldName == RifVtkFieldNames::S ) ? sComponents : eComponents;
size_t count = std::min( components.size(), resultValues->size() );
for ( size_t i = 0; i < count; i++ )
{
std::string internalKey = fieldName + separator + components[i];
std::vector<std::vector<float>*> singleComp = { ( *resultValues )[i] };
readField( RigFemResultPosEnum::RIG_ELEMENT, internalKey, partIndex, stepIndex, &singleComp );
}
return;
}

readField( RigFemResultPosEnum::RIG_ELEMENT, fieldName, partIndex, stepIndex, resultValues );
}

Expand Down Expand Up @@ -593,6 +649,58 @@ void RifVtkReader::readScalarData( RigFemPartCollection*
( *map )[propertyName][stepId][partId] = valuesAsDouble;
}
}
else if ( values.size() == 3 * numElements )
{
auto map = propertyDataMap( RigFemResultPosEnum::RIG_ELEMENT );
if ( map == nullptr ) continue;

// Multi-component element results: stress[0/1] -> S_VTK, strain[0/1] -> E_VTK
// Each VTK array contains 3 components per element.
// Mapping:
// stress[0]: S_VTK.S11 (index 0), S_VTK.S22 (index 1), S_VTK.S33 (index 2)
// stress[1]: S_VTK.S12 (index 0), S_VTK.S13 (index 1), S_VTK.S23 (index 2)
// strain[0]: E_VTK.E11 (index 0), E_VTK.E22 (index 1), E_VTK.E33 (index 2)
// strain[1]: E_VTK.E12 (index 0), E_VTK.E13 (index 1), E_VTK.E23 (index 2)

struct StressStrainMapping
{
std::string vtkName;
std::string fieldName;
std::array<std::string, 3> componentNames;
};

using namespace RifVtkFieldNames;
static const std::vector<StressStrainMapping> mappings = {
{ "stress[0]", S, { S11, S22, S33 } },
{ "stress[1]", S, { S12, S13, S23 } },
{ "strain[0]", E, { E11, E22, E33 } },
{ "strain[1]", E, { E12, E13, E23 } },
};

for ( const auto& mapping : mappings )
{
if ( propertyName != mapping.vtkName ) continue;

for ( int compIdx = 0; compIdx < 3; compIdx++ )
{
std::string internalKey = mapping.fieldName + separator + mapping.componentNames[compIdx];

if ( map->count( internalKey ) == 0 ) ( *map )[internalKey] = {};
if ( ( *map )[internalKey].count( stepId ) == 0 ) ( *map )[internalKey][stepId] = {};

for ( int partIdx = 0; partIdx < femParts->partCount(); partIdx++ )
{
size_t dataSize = femParts->part( partIdx )->elementCount();
std::vector<double> compValues( dataSize, 0.0 );
for ( size_t i = 0; i < dataSize; i++ )
{
compValues[i] = values[i * 3 + compIdx];
}
( *map )[internalKey][stepId][partIdx] = compValues;
}
}
}
}
}
stepId++;
}
Expand Down
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