void ImagerAction::Perform(ArtifactSet &artifacts, ProgressListener &progress)
{
boost::mutex::scoped_lock lock(_imagerMutex);
UVImager *imager = artifacts.Imager();
if(imager == 0)
throw BadUsageException("No imager available to create image.");
TimeFrequencyData &data = artifacts.ContaminatedData();
TimeFrequencyMetaDataCPtr metaData = artifacts.MetaData();
if(data.PolarisationCount() > 1)
{
TimeFrequencyData *tmp = data.CreateTFData(StokesIPolarisation);
data = *tmp;
delete tmp;
}
bool btPlaneImager = true;
if(btPlaneImager)
{
typedef double ImagerNumeric;
BaselineTimePlaneImager<ImagerNumeric> btImager;
BandInfo band = metaData->Band();
Image2DCPtr
inputReal = data.GetRealPart(),
inputImag = data.GetImaginaryPart();
Mask2DCPtr mask = data.GetSingleMask();
size_t width = inputReal->Width();
for(size_t t=0;t!=width;++t)
{
UVW uvw = metaData->UVW()[t];
size_t channelCount = inputReal->Height();
std::vector<std::complex<ImagerNumeric> > data(channelCount);
for(size_t ch=0;ch!=channelCount;++ch) {
if(mask->Value(t, ch))
data[ch] = std::complex<ImagerNumeric>(0.0, 0.0);
else
data[ch] = std::complex<ImagerNumeric>(inputReal->Value(t, ch), inputImag->Value(t, ch));
}
btImager.Image(uvw.u, uvw.v, uvw.w, band.channels[0].frequencyHz, band.channels[1].frequencyHz-band.channels[0].frequencyHz, channelCount, &(data[0]), imager->FTReal());
}
} else {
progress.OnStartTask(*this, 0, 1, "Imaging baseline");
for(size_t y=0;y<data.ImageHeight();++y)
{
imager->Image(data, metaData, y);
progress.OnProgress(*this, y, data.ImageHeight());
}
progress.OnEndTask(*this);
}
}
