void TransferFunctionTest::checkTFColor( ::fwData::TransferFunction::sptr tf )
{
CPPUNIT_ASSERT( ::fwData::TransferFunction::TFColor( 1.0, 0.3, 0.6, 0.1) == tf->getBackgroundColor() );
CPPUNIT_ASSERT_EQUAL( ::fwData::TransferFunction::NEAREST, tf->getInterpolationMode() );
CPPUNIT_ASSERT_EQUAL( false, tf->getIsClamped() );
CPPUNIT_ASSERT_EQUAL( 900.6, tf->getLevel() );
CPPUNIT_ASSERT_EQUAL( std::string("TFColor"), tf->getName() );
CPPUNIT_ASSERT_EQUAL( -200.02, tf->getWindow() );
CPPUNIT_ASSERT_EQUAL( static_cast<size_t>(4), tf->getTFData().size() );
CPPUNIT_ASSERT_EQUAL( -40.33, tf->getMinMaxTFValues().first );
CPPUNIT_ASSERT_EQUAL( 150.0, tf->getMinMaxTFValues().second );
const TransferFunction::TFValueVectorType& values = tf->getTFValues();
CPPUNIT_ASSERT_EQUAL( values[0], -40.33 );
CPPUNIT_ASSERT_EQUAL( values[1], -0.2 );
CPPUNIT_ASSERT_EQUAL( values[2], 3.0 );
CPPUNIT_ASSERT_EQUAL( values[3], 150.0 );
CPPUNIT_ASSERT( ::fwData::TransferFunction::TFColor( 0.9, 0.2, 0.3, 0.4) == tf->getTFColor( -40.33 ) );
CPPUNIT_ASSERT( ::fwData::TransferFunction::TFColor( 0.1, 0.9, 0.3, 0.4) == tf->getTFColor( -0.2 ) );
CPPUNIT_ASSERT( ::fwData::TransferFunction::TFColor( 0.1, 0.2, 0.9, 0.4) == tf->getTFColor( 3 ) );
CPPUNIT_ASSERT( ::fwData::TransferFunction::TFColor( 0.1, 0.2, 0.3, 0.9) == tf->getTFColor( 150 ) );
CPPUNIT_ASSERT_EQUAL( std::string("fieldStringValue"),
::fwData::String::dynamicCast( tf->getField( "fieldStringKey" ) )->value() );
}
void TransferFunction::toVtkLookupTable(
::fwData::TransferFunction::sptr tf,
vtkSmartPointer<vtkLookupTable> lt,
bool allowTransparency,
unsigned int size )
{
SLM_WARN_IF( "Sorry, This transfer function conversion not managed clamped TF.", tf->getIsClamped() );
// Configures basic parameters
lt->SetNumberOfTableValues( size );
lt->SetScaleToLinear();
::fwData::TransferFunction::TFValuePairType minMax = tf->getMinMaxTFValues();
lt->SetTableRange( minMax.first, minMax.second );
double delta = ( minMax.second - minMax.first ) / (double) (size - 1);
::fwData::TransferFunction::TFColor interpolatedColor;
if ( allowTransparency )
{
for( unsigned int k=0; k<size; ++k )
{
interpolatedColor = tf->getInterpolatedColor( k*delta + minMax.first );
lt->SetTableValue(k, interpolatedColor.r, interpolatedColor.g, interpolatedColor.b, interpolatedColor.a);
}
}
else
{
for( unsigned int k=0; k<size; ++k )
{
interpolatedColor = tf->getInterpolatedColor( k*delta + minMax.first );
lt->SetTableValue(k, interpolatedColor.r, interpolatedColor.g, interpolatedColor.b, 1.0);
}
}
lt->Modified();
}