Method channelsToRead

src/IECoreImage/ImageReader.cpp:645–670

}

void ImageReader::channelsToRead( vector<string> &names )
{
	vector<string> allNames;
	channelNames( allNames );

	ConstStringVectorParameterPtr p = channelNamesParameter();
	const StringVectorData *d = static_cast<const StringVectorData *>( p->getValue() );

	// give all channels when no list is provided
	if (!d->readable().size())
	{
		names = allNames;
		return;
	}

	// otherwise, copy in the requested names from the parameter set.
	// this is intersection(A, D)
	names.clear();
	for (vector<string>::const_iterator it = d->readable().begin(); it != d->readable().end(); it++)
	{
		if (find(allNames.begin(), allNames.end(), *it) != allNames.end())
		{
			names.push_back(*it);
		}
	}
}

StringVectorParameter *ImageReader::channelNamesParameter()
{