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#include "msgridder.h"
#include "msprovidercollection.h"
#include "../math/calculatefftsize.h"
#include <aocommon/logger.h>
#include <aocommon/units/angle.h>
using aocommon::Logger;
namespace wsclean {
// Defined out of class to allow the class the be used in a std::unique_ptr.
MsGridder::~MsGridder() = default;
MsGridder::MsGridder(const Settings& settings,
MsProviderCollection& ms_provider_collection)
: MsGridderData(settings),
ms_data_vector_(ms_provider_collection.ms_data_vector_),
w_grid_size_(settings.nWLayers),
data_column_name_(settings.dataColumnName),
small_inversion_(settings.minGridResolution),
weighting_(settings.weightMode) {}
void MsGridder::CalculateOverallMetaData() {
theoretical_beam_size_ = 1.0 / MaxBaseline();
if (IsFirstTask()) {
Logger::Info << "Theoretic beam = " +
aocommon::units::Angle::ToNiceString(
theoretical_beam_size_) +
"\n";
}
if (!HasTrimSize()) SetTrimSize(ImageWidth(), ImageHeight());
actual_inversion_width_ = ImageWidth();
actual_inversion_height_ = ImageHeight();
actual_pixel_size_x_ = PixelSizeX();
actual_pixel_size_y_ = PixelSizeY();
if (SmallInversion()) {
size_t optWidth, optHeight, minWidth, minHeight;
CalculateFFTSize(actual_inversion_width_, actual_pixel_size_x_,
theoretical_beam_size_, minWidth, optWidth);
CalculateFFTSize(actual_inversion_height_, actual_pixel_size_y_,
theoretical_beam_size_, minHeight, optHeight);
if (optWidth < actual_inversion_width_ ||
optHeight < actual_inversion_height_) {
const size_t newWidth =
std::max(std::min(optWidth, actual_inversion_width_), size_t(32));
const size_t newHeight =
std::max(std::min(optHeight, actual_inversion_height_), size_t(32));
if (IsFirstTask()) {
Logger::Info << "Minimal inversion size: " + std::to_string(minWidth) +
" x " + std::to_string(minHeight) +
", using optimal: " + std::to_string(newWidth) +
" x " + std::to_string(newHeight) + "\n";
}
actual_pixel_size_x_ =
(double(actual_inversion_width_) * actual_pixel_size_x_) /
double(newWidth);
actual_pixel_size_y_ =
(double(actual_inversion_height_) * actual_pixel_size_y_) /
double(newHeight);
actual_inversion_width_ = newWidth;
actual_inversion_height_ = newHeight;
} else {
if (IsFirstTask()) {
Logger::Info
<< "Small inversion enabled, but inversion resolution already "
"smaller than beam size: not using optimization.\n";
}
}
}
// Always call GetSuggestedWGridSize in the first iteration, since it then
// logs the suggested wgrid size.
const size_t suggestedGridSize =
(IsFirstTask() || !hasWGridSize()) ? GetSuggestedWGridSize() : 0;
actual_w_grid_size_ = hasWGridSize() ? w_grid_size_ : suggestedGridSize;
}
} // namespace wsclean
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