supercell-wx/scwx-qt/source/scwx/qt/view/level3_radial_view.cpp

382 lines
11 KiB
C++

#include <scwx/qt/view/level3_radial_view.hpp>
#include <scwx/common/constants.hpp>
#include <scwx/util/logger.hpp>
#include <scwx/util/threads.hpp>
#include <scwx/util/time.hpp>
#include <scwx/wsr88d/rpg/digital_radial_data_array_packet.hpp>
#include <scwx/wsr88d/rpg/radial_data_packet.hpp>
#include <boost/range/irange.hpp>
#include <boost/timer/timer.hpp>
namespace scwx
{
namespace qt
{
namespace view
{
static const std::string logPrefix_ = "scwx::qt::view::level3_radial_view";
static const auto logger_ = scwx::util::Logger::Create(logPrefix_);
static constexpr uint16_t RANGE_FOLDED = 1u;
static constexpr uint32_t VERTICES_PER_BIN = 6u;
static constexpr uint32_t VALUES_PER_VERTEX = 2u;
class Level3RadialViewImpl
{
public:
explicit Level3RadialViewImpl() :
selectedTime_ {},
latitude_ {},
longitude_ {},
range_ {},
vcp_ {},
sweepTime_ {}
{
}
~Level3RadialViewImpl() = default;
std::chrono::system_clock::time_point selectedTime_;
std::vector<float> vertices_;
std::vector<uint8_t> dataMoments8_;
float latitude_;
float longitude_;
float range_;
uint16_t vcp_;
std::chrono::system_clock::time_point sweepTime_;
};
Level3RadialView::Level3RadialView(
const std::string& product,
std::shared_ptr<manager::RadarProductManager> radarProductManager) :
Level3ProductView(product, radarProductManager),
p(std::make_unique<Level3RadialViewImpl>())
{
}
Level3RadialView::~Level3RadialView() = default;
float Level3RadialView::range() const
{
return p->range_;
}
std::chrono::system_clock::time_point Level3RadialView::sweep_time() const
{
return p->sweepTime_;
}
uint16_t Level3RadialView::vcp() const
{
return p->vcp_;
}
const std::vector<float>& Level3RadialView::vertices() const
{
return p->vertices_;
}
std::tuple<const void*, size_t, size_t> Level3RadialView::GetMomentData() const
{
const void* data;
size_t dataSize;
size_t componentSize;
data = p->dataMoments8_.data();
dataSize = p->dataMoments8_.size() * sizeof(uint8_t);
componentSize = 1;
return std::tie(data, dataSize, componentSize);
}
void Level3RadialView::SelectTime(std::chrono::system_clock::time_point time)
{
p->selectedTime_ = time;
}
void Level3RadialView::ComputeSweep()
{
logger_->debug("ComputeSweep()");
boost::timer::cpu_timer timer;
std::scoped_lock sweepLock(sweep_mutex());
std::shared_ptr<manager::RadarProductManager> radarProductManager =
radar_product_manager();
// Retrieve message from Radar Product Manager
std::shared_ptr<wsr88d::rpg::Level3Message> message =
radarProductManager->GetLevel3Data(GetRadarProductName(),
p->selectedTime_);
if (message == nullptr)
{
logger_->debug("Level 3 data not found");
return;
}
// A message with radial data should be a Graphic Product Message
std::shared_ptr<wsr88d::rpg::GraphicProductMessage> gpm =
std::dynamic_pointer_cast<wsr88d::rpg::GraphicProductMessage>(message);
if (gpm == nullptr)
{
logger_->warn("Graphic Product Message not found");
return;
}
else if (gpm == graphic_product_message())
{
// Skip if this is the message we previously processed
return;
}
set_graphic_product_message(gpm);
// A message with radial data should have a Product Description Block and
// Product Symbology Block
std::shared_ptr<wsr88d::rpg::ProductDescriptionBlock> descriptionBlock =
message->description_block();
std::shared_ptr<wsr88d::rpg::ProductSymbologyBlock> symbologyBlock =
gpm->symbology_block();
if (descriptionBlock == nullptr || symbologyBlock == nullptr)
{
logger_->warn("Missing blocks");
return;
}
// A valid message should have a positive number of layers
uint16_t numberOfLayers = symbologyBlock->number_of_layers();
if (numberOfLayers < 1)
{
logger_->warn("No layers present in symbology block");
return;
}
// A message with radial data should either have a Digital Radial Data Array
// Packet, or a Radial Data Array Packet (TODO)
std::shared_ptr<wsr88d::rpg::DigitalRadialDataArrayPacket>
digitalDataPacket = nullptr;
std::shared_ptr<wsr88d::rpg::RadialDataPacket> radialDataPacket = nullptr;
std::shared_ptr<wsr88d::rpg::GenericRadialDataPacket> radialData = nullptr;
for (uint16_t layer = 0; layer < numberOfLayers; layer++)
{
std::vector<std::shared_ptr<wsr88d::rpg::Packet>> packetList =
symbologyBlock->packet_list(layer);
for (auto it = packetList.begin(); it != packetList.end(); it++)
{
// Prefer Digital Radial Data to Radial Data
digitalDataPacket = std::dynamic_pointer_cast<
wsr88d::rpg::DigitalRadialDataArrayPacket>(*it);
if (digitalDataPacket != nullptr)
{
break;
}
// Otherwise, check for Radial Data
if (radialDataPacket == nullptr)
{
radialDataPacket =
std::dynamic_pointer_cast<wsr88d::rpg::RadialDataPacket>(*it);
}
}
if (digitalDataPacket != nullptr)
{
break;
}
}
if (digitalDataPacket != nullptr)
{
radialData = digitalDataPacket;
}
else if (radialDataPacket != nullptr)
{
radialData = radialDataPacket;
}
else
{
logger_->debug("No radial data found");
return;
}
// Assume the number of radials should be 360 or 720
const size_t radials = radialData->number_of_radials();
if (radials != 360 && radials != 720)
{
logger_->warn("Unsupported number of radials: {}", radials);
return;
}
const common::RadialSize radialSize =
(radials == common::MAX_0_5_DEGREE_RADIALS) ?
common::RadialSize::_0_5Degree :
common::RadialSize::_1Degree;
const std::vector<float>& coordinates =
radarProductManager->coordinates(radialSize);
// There should be a positive number of range bins in radial data
const uint16_t gates = radialData->number_of_range_bins();
if (gates < 1)
{
logger_->warn("No range bins in radial data");
return;
}
p->latitude_ = descriptionBlock->latitude_of_radar();
p->longitude_ = descriptionBlock->longitude_of_radar();
p->range_ = descriptionBlock->range();
p->sweepTime_ =
util::TimePoint(descriptionBlock->volume_scan_date(),
descriptionBlock->volume_scan_start_time() * 1000);
p->vcp_ = descriptionBlock->volume_coverage_pattern();
// Calculate vertices
timer.start();
// Setup vertex vector
std::vector<float>& vertices = p->vertices_;
size_t vIndex = 0;
vertices.clear();
vertices.resize(radials * gates * VERTICES_PER_BIN * VALUES_PER_VERTEX);
// Setup data moment vector
std::vector<uint8_t>& dataMoments8 = p->dataMoments8_;
size_t mIndex = 0;
dataMoments8.resize(radials * gates * VERTICES_PER_BIN);
// Compute threshold at which to display an individual bin
const uint16_t snrThreshold = descriptionBlock->threshold();
// Determine which radial to start at
const float radialMultiplier = radials / 360.0f;
const float startAngle = radialData->start_angle(0);
const uint16_t startRadial = std::lroundf(startAngle * radialMultiplier);
for (uint16_t radial = 0; radial < radialData->number_of_radials(); radial++)
{
const auto dataMomentsArray8 = radialData->level(radial);
// Compute gate interval
const uint16_t dataMomentInterval = descriptionBlock->x_resolution_raw();
// Compute gate size (number of base gates per bin)
const uint16_t gateSize = std::max<uint16_t>(
1,
dataMomentInterval /
static_cast<uint16_t>(radarProductManager->gate_size()));
// Compute gate range [startGate, endGate)
const uint16_t startGate = 0;
const uint16_t endGate = std::min<uint16_t>(
startGate + gates * gateSize, common::MAX_DATA_MOMENT_GATES);
for (uint16_t gate = startGate, i = 0; gate + gateSize <= endGate;
gate += gateSize, ++i)
{
size_t vertexCount = (gate > 0) ? 6 : 3;
// Store data moment value
uint8_t dataValue =
(i < dataMomentsArray8.size()) ? dataMomentsArray8[i] : 0;
if (dataValue < snrThreshold && dataValue != RANGE_FOLDED)
{
continue;
}
for (size_t m = 0; m < vertexCount; m++)
{
dataMoments8[mIndex++] = dataValue;
}
// Store vertices
if (gate > 0)
{
const uint16_t baseCoord = gate - 1;
size_t offset1 = ((startRadial + radial) % radials *
common::MAX_DATA_MOMENT_GATES +
baseCoord) *
2;
size_t offset2 = offset1 + gateSize * 2;
size_t offset3 = (((startRadial + radial + 1) % radials) *
common::MAX_DATA_MOMENT_GATES +
baseCoord) *
2;
size_t offset4 = offset3 + gateSize * 2;
vertices[vIndex++] = coordinates[offset1];
vertices[vIndex++] = coordinates[offset1 + 1];
vertices[vIndex++] = coordinates[offset2];
vertices[vIndex++] = coordinates[offset2 + 1];
vertices[vIndex++] = coordinates[offset3];
vertices[vIndex++] = coordinates[offset3 + 1];
vertices[vIndex++] = coordinates[offset3];
vertices[vIndex++] = coordinates[offset3 + 1];
vertices[vIndex++] = coordinates[offset4];
vertices[vIndex++] = coordinates[offset4 + 1];
vertices[vIndex++] = coordinates[offset2];
vertices[vIndex++] = coordinates[offset2 + 1];
vertexCount = 6;
}
else
{
const uint16_t baseCoord = gate;
size_t offset1 = ((startRadial + radial) % radials *
common::MAX_DATA_MOMENT_GATES +
baseCoord) *
2;
size_t offset2 = (((startRadial + radial + 1) % radials) *
common::MAX_DATA_MOMENT_GATES +
baseCoord) *
2;
vertices[vIndex++] = p->latitude_;
vertices[vIndex++] = p->longitude_;
vertices[vIndex++] = coordinates[offset1];
vertices[vIndex++] = coordinates[offset1 + 1];
vertices[vIndex++] = coordinates[offset2];
vertices[vIndex++] = coordinates[offset2 + 1];
vertexCount = 3;
}
}
}
vertices.resize(vIndex);
vertices.shrink_to_fit();
dataMoments8.resize(mIndex);
dataMoments8.shrink_to_fit();
timer.stop();
logger_->debug("Vertices calculated in {}", timer.format(6, "%ws"));
UpdateColorTable();
emit SweepComputed();
}
std::shared_ptr<Level3RadialView> Level3RadialView::Create(
const std::string& product,
std::shared_ptr<manager::RadarProductManager> radarProductManager)
{
return std::make_shared<Level3RadialView>(product, radarProductManager);
}
} // namespace view
} // namespace qt
} // namespace scwx