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#include "imagingtable.h"
#include <aocommon/logger.h>
#include <schaapcommon/facets/facet.h>
#include <algorithm>
#include <cassert>
#include <iomanip>
#include <map>
#include <memory>
using aocommon::Logger;
namespace wsclean {
ImagingTable::ImagingTable(const ImagingTable::Group& entries)
: _entries(entries), _independentGroups(), _facets(), _squaredGroups() {
Update();
}
ImagingTable::ImagingTable(
const ImagingTable& other,
std::function<bool(const ImagingTableEntry&)> isSelected)
: _entries(), _independentGroups(), _facets(), _squaredGroups() {
std::copy_if(other._entries.begin(), other._entries.end(),
std::back_inserter(_entries),
[&](const EntryPtr& entry) { return isSelected(*entry); });
Update();
}
void ImagingTable::Print() const {
Logger::Info << "=== IMAGING TABLE ===\n"
" # Pol Ch JG ²G FG FI In Freq(MHz)\n";
for (size_t i = 0; i != _independentGroups.size(); ++i) {
Logger::Info << "| Independent group:\n";
const ImagingTable independent(_independentGroups[i]);
const ImagingTable::Groups& squaredGroups = independent.SquaredGroups();
for (size_t s = 0; s != squaredGroups.size(); ++s) {
const ImagingTable::Group& squared = squaredGroups[s];
for (size_t e = 0; e != squared.size(); ++e) {
if (s == 0 && e == 0)
Logger::Info << "+-";
else if ((i + 1) == _independentGroups.size())
Logger::Info << " ";
else
Logger::Info << "| ";
if (e == 0)
Logger::Info << "+-";
else if ((s + 1) == squaredGroups.size())
Logger::Info << " ";
else
Logger::Info << "| ";
PrintEntry(*squared[e]);
}
}
}
}
void ImagingTable::PrintEntry(const ImagingTableEntry& entry) {
std::ostringstream str;
str << std::setw(2) << entry.index << " ";
str << aocommon::Polarization::TypeToShortString(entry.polarization) << " ";
str << std::setw(2) << entry.outputChannelIndex << " ";
str << std::setw(2) << entry.joinedGroupIndex << " ";
str << std::setw(2) << entry.squaredDeconvolutionIndex << " ";
str << std::setw(2) << entry.facetGroupIndex << " ";
str << std::setw(2) << entry.facetIndex << " ";
str << std::setw(2) << entry.outputIntervalIndex << " ";
str << round(entry.bandStartFrequency * 1e-6) << "-"
<< round(entry.bandEndFrequency * 1e-6) << " (" << entry.inputChannelCount
<< ")";
Logger::Info << "J-" << str.str() << '\n';
}
ImagingTable::Groups ImagingTable::CreateGroups(
std::function<size_t(const ImagingTableEntry&)> getIndex,
std::function<bool(const ImagingTableEntry&)> isSelected) const {
std::map<size_t, Group> groupMap;
for (const EntryPtr& e : _entries) {
if (isSelected(*e)) {
groupMap[getIndex(*e)].push_back(e);
}
}
Groups groups;
groups.reserve(groupMap.size());
for (auto& item : groupMap) {
groups.emplace_back(std::move(item.second));
}
return groups;
}
void ImagingTable::AssignGridDataFromPolarization(
aocommon::PolarizationEnum polarization) {
for (Group& group : _squaredGroups) {
const EntryPtr& sourceEntry = *std::find_if(
group.begin(), group.end(), [polarization](const EntryPtr& e) {
return e->polarization == polarization;
});
for (EntryPtr& entryPtr : group) {
if (entryPtr != sourceEntry) {
entryPtr->AssignGridData(*sourceEntry);
}
}
}
}
std::unique_ptr<radler::WorkTable> ImagingTable::CreateDeconvolutionTable(
int n_deconvolution_channels, CachedImageSet& psf_images,
CachedImageSet& model_images, CachedImageSet& residual_images) const {
if (_entries.empty()) {
throw std::runtime_error(
"Can not create a DeconvolutionTable from an empty ImagingTable.");
}
if (_facets.empty()) {
throw std::runtime_error(
"Member _facets of ImagingTable is empty. Probably Update() was not "
"called after adding entries.");
}
// In a DeconvolutionTable the output channel indices range from
// 0 to (#channels - 1). In an ImagingTable that forms an indepent group,
// output channel indices may start at a higher index.
// Assume that the first entry has the lowest index and that the last entry
// has the highest output channel index.
const int channel_index_offset = _entries.front()->outputChannelIndex;
const int n_original_channels =
_entries.back()->outputChannelIndex + 1 - channel_index_offset;
// Gather dd-psf info from ImagingTable
// The ImagingTable is a fairly free format
// The following addional assumptions are needed to create a valid
// WorkTable with ddp-psfs
//
// * The dd-psfs are the same, and in the same order for all images
// * the facet_ids of the dd-psfs form a simple sequence 0,1,2,...
//
std::vector<radler::PsfOffset> psf_offsets;
std::vector<std::shared_ptr<schaapcommon::facets::Facet>> psf_facets;
// There could be multiple independent groups so the first
// facetGroupIndex is not necessarily zero.
// Note that looping over _facetGroups.front() is not possible here, since it
// does not contain the DD PSF entries.
size_t first_facet_group_index = (*_entries.begin())->facetGroupIndex;
// Although an ImagingTable may contain entries for multiple polarizations,
// there should only be DD PSF entries for the first polarization, since the
// DD PSF layout is equal for all polarizations.
for (const EntryPtr& entry_ptr : _entries) {
if (entry_ptr->facetGroupIndex != first_facet_group_index) break;
if (!entry_ptr->isDdPsf) continue;
const schaapcommon::facets::PixelPosition centre =
entry_ptr->facet->GetTrimmedBoundingBox().Centre();
psf_offsets.emplace_back(centre.x, centre.y);
psf_facets.push_back(entry_ptr->facet);
}
auto table = std::make_unique<radler::WorkTable>(
std::move(psf_offsets), n_original_channels, n_deconvolution_channels,
channel_index_offset);
int max_squared_index = -1;
for (const EntryPtr& entry_ptr : _facets.front()) {
assert(entry_ptr);
if (entry_ptr->imageCount >= 1) {
CachedImageSet* psf_images_ptr = nullptr;
// Only set psf_images_ptr for the first entry of each squared group.
// This way, CreateDeconvolutionEntry() only creates psf accessors for
// those entries.
if (int(entry_ptr->squaredDeconvolutionIndex) > max_squared_index) {
max_squared_index = entry_ptr->squaredDeconvolutionIndex;
psf_images_ptr = &psf_images;
}
std::unique_ptr<radler::WorkTableEntry> real_entry =
entry_ptr->CreateDeconvolutionEntry(
channel_index_offset, psf_images_ptr, model_images,
residual_images, psf_facets, false);
table->AddEntry(std::move(real_entry));
}
if (entry_ptr->imageCount == 2) {
std::unique_ptr<radler::WorkTableEntry> imaginary_entry =
entry_ptr->CreateDeconvolutionEntry(channel_index_offset, nullptr,
model_images, residual_images,
psf_facets, true);
table->AddEntry(std::move(imaginary_entry));
}
}
return table;
}
} // namespace wsclean
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