PrusaSlicer-NonPlainar/xs/src/libslic3r/GCodeTimeEstimator.cpp

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#include "GCodeTimeEstimator.hpp"
#include <boost/bind.hpp>
#include <cmath>
#include <Shiny/Shiny.h>
#include <boost/nowide/fstream.hpp>
#include <boost/nowide/cstdio.hpp>
#include <boost/algorithm/string/predicate.hpp>
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static const float MMMIN_TO_MMSEC = 1.0f / 60.0f;
static const float MILLISEC_TO_SEC = 0.001f;
static const float INCHES_TO_MM = 25.4f;
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static const float DEFAULT_FEEDRATE = 1500.0f; // from Prusa Firmware (Marlin_main.cpp)
static const float DEFAULT_ACCELERATION = 1500.0f; // Prusa Firmware 1_75mm_MK2
static const float DEFAULT_RETRACT_ACCELERATION = 1500.0f; // Prusa Firmware 1_75mm_MK2
static const float DEFAULT_AXIS_MAX_FEEDRATE[] = { 500.0f, 500.0f, 12.0f, 120.0f }; // Prusa Firmware 1_75mm_MK2
static const float DEFAULT_AXIS_MAX_ACCELERATION[] = { 9000.0f, 9000.0f, 500.0f, 10000.0f }; // Prusa Firmware 1_75mm_MK2
static const float DEFAULT_AXIS_MAX_JERK[] = { 10.0f, 10.0f, 0.4f, 2.5f }; // from Prusa Firmware (Configuration.h)
static const float DEFAULT_MINIMUM_FEEDRATE = 0.0f; // from Prusa Firmware (Configuration_adv.h)
static const float DEFAULT_MINIMUM_TRAVEL_FEEDRATE = 0.0f; // from Prusa Firmware (Configuration_adv.h)
static const float DEFAULT_EXTRUDE_FACTOR_OVERRIDE_PERCENTAGE = 1.0f; // 100 percent
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static const float PREVIOUS_FEEDRATE_THRESHOLD = 0.0001f;
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#if ENABLE_MOVE_STATS
static const std::string MOVE_TYPE_STR[Slic3r::GCodeTimeEstimator::Block::Num_Types] =
{
"Noop",
"Retract",
"Unretract",
"Tool_change",
"Move",
"Extrude"
};
#endif // ENABLE_MOVE_STATS
namespace Slic3r {
void GCodeTimeEstimator::Feedrates::reset()
{
feedrate = 0.0f;
safe_feedrate = 0.0f;
::memset(axis_feedrate, 0, Num_Axis * sizeof(float));
::memset(abs_axis_feedrate, 0, Num_Axis * sizeof(float));
}
float GCodeTimeEstimator::Block::Trapezoid::acceleration_time(float acceleration) const
{
return acceleration_time_from_distance(feedrate.entry, accelerate_until, acceleration);
}
float GCodeTimeEstimator::Block::Trapezoid::cruise_time() const
{
return (feedrate.cruise != 0.0f) ? cruise_distance() / feedrate.cruise : 0.0f;
}
float GCodeTimeEstimator::Block::Trapezoid::deceleration_time(float acceleration) const
{
return acceleration_time_from_distance(feedrate.cruise, (distance - decelerate_after), -acceleration);
}
float GCodeTimeEstimator::Block::Trapezoid::cruise_distance() const
{
return decelerate_after - accelerate_until;
}
float GCodeTimeEstimator::Block::Trapezoid::acceleration_time_from_distance(float initial_feedrate, float distance, float acceleration)
{
return (acceleration != 0.0f) ? (speed_from_distance(initial_feedrate, distance, acceleration) - initial_feedrate) / acceleration : 0.0f;
}
float GCodeTimeEstimator::Block::Trapezoid::speed_from_distance(float initial_feedrate, float distance, float acceleration)
{
// to avoid invalid negative numbers due to numerical imprecision
float value = std::max(0.0f, sqr(initial_feedrate) + 2.0f * acceleration * distance);
return ::sqrt(value);
}
GCodeTimeEstimator::Block::Block()
{
}
float GCodeTimeEstimator::Block::move_length() const
{
float length = ::sqrt(sqr(delta_pos[X]) + sqr(delta_pos[Y]) + sqr(delta_pos[Z]));
return (length > 0.0f) ? length : std::abs(delta_pos[E]);
}
float GCodeTimeEstimator::Block::is_extruder_only_move() const
{
return (delta_pos[X] == 0.0f) && (delta_pos[Y] == 0.0f) && (delta_pos[Z] == 0.0f) && (delta_pos[E] != 0.0f);
}
float GCodeTimeEstimator::Block::is_travel_move() const
{
return delta_pos[E] == 0.0f;
}
float GCodeTimeEstimator::Block::acceleration_time() const
{
return trapezoid.acceleration_time(acceleration);
}
float GCodeTimeEstimator::Block::cruise_time() const
{
return trapezoid.cruise_time();
}
float GCodeTimeEstimator::Block::deceleration_time() const
{
return trapezoid.deceleration_time(acceleration);
}
float GCodeTimeEstimator::Block::cruise_distance() const
{
return trapezoid.cruise_distance();
}
void GCodeTimeEstimator::Block::calculate_trapezoid()
{
float distance = move_length();
trapezoid.distance = distance;
trapezoid.feedrate = feedrate;
float accelerate_distance = estimate_acceleration_distance(feedrate.entry, feedrate.cruise, acceleration);
float decelerate_distance = estimate_acceleration_distance(feedrate.cruise, feedrate.exit, -acceleration);
float cruise_distance = distance - accelerate_distance - decelerate_distance;
// Not enough space to reach the nominal feedrate.
// This means no cruising, and we'll have to use intersection_distance() to calculate when to abort acceleration
// and start braking in order to reach the exit_feedrate exactly at the end of this block.
if (cruise_distance < 0.0f)
{
accelerate_distance = clamp(0.0f, distance, intersection_distance(feedrate.entry, feedrate.exit, acceleration, distance));
cruise_distance = 0.0f;
trapezoid.feedrate.cruise = Trapezoid::speed_from_distance(feedrate.entry, accelerate_distance, acceleration);
}
trapezoid.accelerate_until = accelerate_distance;
trapezoid.decelerate_after = accelerate_distance + cruise_distance;
}
float GCodeTimeEstimator::Block::max_allowable_speed(float acceleration, float target_velocity, float distance)
{
// to avoid invalid negative numbers due to numerical imprecision
float value = std::max(0.0f, sqr(target_velocity) - 2.0f * acceleration * distance);
return ::sqrt(value);
}
float GCodeTimeEstimator::Block::estimate_acceleration_distance(float initial_rate, float target_rate, float acceleration)
{
return (acceleration == 0.0f) ? 0.0f : (sqr(target_rate) - sqr(initial_rate)) / (2.0f * acceleration);
}
float GCodeTimeEstimator::Block::intersection_distance(float initial_rate, float final_rate, float acceleration, float distance)
{
return (acceleration == 0.0f) ? 0.0f : (2.0f * acceleration * distance - sqr(initial_rate) + sqr(final_rate)) / (4.0f * acceleration);
}
#if ENABLE_MOVE_STATS
GCodeTimeEstimator::MoveStats::MoveStats()
: count(0)
, time(0.0f)
{
}
#endif // ENABLE_MOVE_STATS
GCodeTimeEstimator::GCodeTimeEstimator(EMode mode)
: _mode(mode)
{
reset();
set_default();
}
void GCodeTimeEstimator::add_gcode_line(const std::string& gcode_line)
{
PROFILE_FUNC();
_parser.parse_line(gcode_line,
[this](GCodeReader &reader, const GCodeReader::GCodeLine &line)
{ this->_process_gcode_line(reader, line); });
}
void GCodeTimeEstimator::add_gcode_block(const char *ptr)
{
PROFILE_FUNC();
GCodeReader::GCodeLine gline;
auto action = [this](GCodeReader &reader, const GCodeReader::GCodeLine &line)
{ this->_process_gcode_line(reader, line); };
for (; *ptr != 0;) {
gline.reset();
ptr = _parser.parse_line(ptr, gline, action);
}
}
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void GCodeTimeEstimator::calculate_time(bool start_from_beginning)
{
PROFILE_FUNC();
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if (start_from_beginning)
{
_reset_time();
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_last_st_synchronized_block_id = -1;
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}
_calculate_time();
#if ENABLE_MOVE_STATS
_log_moves_stats();
#endif // ENABLE_MOVE_STATS
}
void GCodeTimeEstimator::calculate_time_from_text(const std::string& gcode)
{
reset();
_parser.parse_buffer(gcode,
[this](GCodeReader &reader, const GCodeReader::GCodeLine &line)
{ this->_process_gcode_line(reader, line); });
_calculate_time();
#if ENABLE_MOVE_STATS
_log_moves_stats();
#endif // ENABLE_MOVE_STATS
}
void GCodeTimeEstimator::calculate_time_from_file(const std::string& file)
{
reset();
_parser.parse_file(file, boost::bind(&GCodeTimeEstimator::_process_gcode_line, this, _1, _2));
_calculate_time();
#if ENABLE_MOVE_STATS
_log_moves_stats();
#endif // ENABLE_MOVE_STATS
}
void GCodeTimeEstimator::calculate_time_from_lines(const std::vector<std::string>& gcode_lines)
{
reset();
auto action = [this](GCodeReader &reader, const GCodeReader::GCodeLine &line)
{ this->_process_gcode_line(reader, line); };
for (const std::string& line : gcode_lines)
_parser.parse_line(line, action);
_calculate_time();
#if ENABLE_MOVE_STATS
_log_moves_stats();
#endif // ENABLE_MOVE_STATS
}
bool GCodeTimeEstimator::post_process_remaining_times(const std::string& filename, float interval)
{
boost::nowide::ifstream in(filename);
if (!in.good())
throw std::runtime_error(std::string("Remaining times export failed.\nCannot open file for reading.\n"));
std::string path_tmp = filename + ".times";
FILE* out = boost::nowide::fopen(path_tmp.c_str(), "wb");
if (out == nullptr)
throw std::runtime_error(std::string("Remaining times export failed.\nCannot open file for writing.\n"));
std::string time_mask;
switch (_mode)
{
default:
case Normal:
{
time_mask = "M73 P%s R%s\n";
break;
}
case Silent:
{
time_mask = "M73 Q%s S%s\n";
break;
}
}
unsigned int g1_lines_count = 0;
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float last_recorded_time = 0.0f;
std::string gcode_line;
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// buffer line to export only when greater than 64K to reduce writing calls
std::string export_line;
char time_line[64];
while (std::getline(in, gcode_line))
{
if (!in.good())
{
fclose(out);
throw std::runtime_error(std::string("Remaining times export failed.\nError while reading from file.\n"));
}
gcode_line += "\n";
// add remaining time lines where needed
_parser.parse_line(gcode_line,
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[this, &g1_lines_count, &last_recorded_time, &time_line, &gcode_line, time_mask, interval](GCodeReader& reader, const GCodeReader::GCodeLine& line)
{
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if (line.cmd_is("G1"))
{
++g1_lines_count;
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if (!line.has_e())
return;
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G1LineIdToBlockIdMap::const_iterator it = _g1_line_ids.find(g1_lines_count);
if ((it != _g1_line_ids.end()) && (it->second < (unsigned int)_blocks.size()))
{
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const Block& block = _blocks[it->second];
if (block.elapsed_time != -1.0f)
{
float block_remaining_time = _time - block.elapsed_time;
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if (std::abs(last_recorded_time - block_remaining_time) > interval)
{
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sprintf(time_line, time_mask.c_str(), std::to_string((int)(100.0f * block.elapsed_time / _time)).c_str(), _get_time_minutes(block_remaining_time).c_str());
gcode_line += time_line;
last_recorded_time = block_remaining_time;
}
}
}
}
});
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export_line += gcode_line;
if (export_line.length() > 65535)
{
fwrite((const void*)export_line.c_str(), 1, export_line.length(), out);
if (ferror(out))
{
in.close();
fclose(out);
boost::nowide::remove(path_tmp.c_str());
throw std::runtime_error(std::string("Remaining times export failed.\nIs the disk full?\n"));
}
export_line.clear();
}
}
if (export_line.length() > 0)
{
fwrite((const void*)export_line.c_str(), 1, export_line.length(), out);
if (ferror(out))
{
in.close();
fclose(out);
boost::nowide::remove(path_tmp.c_str());
throw std::runtime_error(std::string("Remaining times export failed.\nIs the disk full?\n"));
}
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}
fclose(out);
in.close();
boost::nowide::remove(filename.c_str());
if (boost::nowide::rename(path_tmp.c_str(), filename.c_str()) != 0)
throw std::runtime_error(std::string("Failed to rename the output G-code file from ") + path_tmp + " to " + filename + '\n' +
"Is " + path_tmp + " locked?" + '\n');
return true;
}
void GCodeTimeEstimator::set_axis_position(EAxis axis, float position)
{
_state.axis[axis].position = position;
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}
void GCodeTimeEstimator::set_axis_max_feedrate(EAxis axis, float feedrate_mm_sec)
{
_state.axis[axis].max_feedrate = feedrate_mm_sec;
}
void GCodeTimeEstimator::set_axis_max_acceleration(EAxis axis, float acceleration)
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{
_state.axis[axis].max_acceleration = acceleration;
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}
void GCodeTimeEstimator::set_axis_max_jerk(EAxis axis, float jerk)
{
_state.axis[axis].max_jerk = jerk;
}
float GCodeTimeEstimator::get_axis_position(EAxis axis) const
{
return _state.axis[axis].position;
}
float GCodeTimeEstimator::get_axis_max_feedrate(EAxis axis) const
{
return _state.axis[axis].max_feedrate;
}
float GCodeTimeEstimator::get_axis_max_acceleration(EAxis axis) const
{
return _state.axis[axis].max_acceleration;
}
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float GCodeTimeEstimator::get_axis_max_jerk(EAxis axis) const
{
return _state.axis[axis].max_jerk;
}
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void GCodeTimeEstimator::set_feedrate(float feedrate_mm_sec)
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{
_state.feedrate = feedrate_mm_sec;
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}
float GCodeTimeEstimator::get_feedrate() const
{
return _state.feedrate;
}
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void GCodeTimeEstimator::set_acceleration(float acceleration_mm_sec2)
{
_state.acceleration = (_state.max_acceleration == 0) ?
acceleration_mm_sec2 :
// Clamp the acceleration with the maximum.
std::min(_state.max_acceleration, acceleration_mm_sec2);
}
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float GCodeTimeEstimator::get_acceleration() const
{
return _state.acceleration;
}
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void GCodeTimeEstimator::set_max_acceleration(float acceleration_mm_sec2)
{
_state.max_acceleration = acceleration_mm_sec2;
if (acceleration_mm_sec2 > 0)
_state.acceleration = acceleration_mm_sec2;
}
float GCodeTimeEstimator::get_max_acceleration() const
{
return _state.max_acceleration;
}
void GCodeTimeEstimator::set_retract_acceleration(float acceleration_mm_sec2)
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{
_state.retract_acceleration = acceleration_mm_sec2;
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}
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float GCodeTimeEstimator::get_retract_acceleration() const
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{
return _state.retract_acceleration;
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}
void GCodeTimeEstimator::set_minimum_feedrate(float feedrate_mm_sec)
{
_state.minimum_feedrate = feedrate_mm_sec;
}
float GCodeTimeEstimator::get_minimum_feedrate() const
{
return _state.minimum_feedrate;
}
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void GCodeTimeEstimator::set_minimum_travel_feedrate(float feedrate_mm_sec)
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{
_state.minimum_travel_feedrate = feedrate_mm_sec;
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}
float GCodeTimeEstimator::get_minimum_travel_feedrate() const
{
return _state.minimum_travel_feedrate;
}
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void GCodeTimeEstimator::set_filament_load_times(const std::vector<double> &filament_load_times)
{
_state.filament_load_times.clear();
for (double t : filament_load_times)
_state.filament_load_times.push_back(t);
}
void GCodeTimeEstimator::set_filament_unload_times(const std::vector<double> &filament_unload_times)
{
_state.filament_unload_times.clear();
for (double t : filament_unload_times)
_state.filament_unload_times.push_back(t);
}
float GCodeTimeEstimator::get_filament_load_time(unsigned int id_extruder)
{
return
(_state.filament_load_times.empty() || id_extruder == _state.extruder_id_unloaded) ?
0 :
(_state.filament_load_times.size() <= id_extruder) ?
_state.filament_load_times.front() :
_state.filament_load_times[id_extruder];
}
float GCodeTimeEstimator::get_filament_unload_time(unsigned int id_extruder)
{
return
(_state.filament_unload_times.empty() || id_extruder == _state.extruder_id_unloaded) ?
0 :
(_state.filament_unload_times.size() <= id_extruder) ?
_state.filament_unload_times.front() :
_state.filament_unload_times[id_extruder];
}
void GCodeTimeEstimator::set_extrude_factor_override_percentage(float percentage)
{
_state.extrude_factor_override_percentage = percentage;
}
float GCodeTimeEstimator::get_extrude_factor_override_percentage() const
{
return _state.extrude_factor_override_percentage;
}
void GCodeTimeEstimator::set_dialect(GCodeFlavor dialect)
{
_state.dialect = dialect;
}
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GCodeFlavor GCodeTimeEstimator::get_dialect() const
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{
PROFILE_FUNC();
return _state.dialect;
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}
void GCodeTimeEstimator::set_units(GCodeTimeEstimator::EUnits units)
{
_state.units = units;
}
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GCodeTimeEstimator::EUnits GCodeTimeEstimator::get_units() const
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{
return _state.units;
}
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void GCodeTimeEstimator::set_global_positioning_type(GCodeTimeEstimator::EPositioningType type)
{
_state.global_positioning_type = type;
}
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GCodeTimeEstimator::EPositioningType GCodeTimeEstimator::get_global_positioning_type() const
{
return _state.global_positioning_type;
}
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void GCodeTimeEstimator::set_e_local_positioning_type(GCodeTimeEstimator::EPositioningType type)
{
_state.e_local_positioning_type = type;
}
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GCodeTimeEstimator::EPositioningType GCodeTimeEstimator::get_e_local_positioning_type() const
{
return _state.e_local_positioning_type;
}
int GCodeTimeEstimator::get_g1_line_id() const
{
return _state.g1_line_id;
}
void GCodeTimeEstimator::increment_g1_line_id()
{
++_state.g1_line_id;
}
void GCodeTimeEstimator::reset_g1_line_id()
{
_state.g1_line_id = 0;
}
void GCodeTimeEstimator::set_extruder_id(unsigned int id)
{
_state.extruder_id = id;
}
unsigned int GCodeTimeEstimator::get_extruder_id() const
{
return _state.extruder_id;
}
void GCodeTimeEstimator::reset_extruder_id()
{
// Set the initial extruder ID to unknown. For the multi-material setup it means
// that all the filaments are parked in the MMU and no filament is loaded yet.
_state.extruder_id = _state.extruder_id_unloaded;
}
void GCodeTimeEstimator::add_additional_time(float timeSec)
{
PROFILE_FUNC();
_state.additional_time += timeSec;
}
void GCodeTimeEstimator::set_additional_time(float timeSec)
{
_state.additional_time = timeSec;
}
float GCodeTimeEstimator::get_additional_time() const
{
return _state.additional_time;
}
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void GCodeTimeEstimator::set_default()
{
set_units(Millimeters);
set_dialect(gcfRepRap);
set_global_positioning_type(Absolute);
set_e_local_positioning_type(Absolute);
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set_feedrate(DEFAULT_FEEDRATE);
// Setting the maximum acceleration to zero means that the there is no limit and the G-code
// is allowed to set excessive values.
set_max_acceleration(0);
set_acceleration(DEFAULT_ACCELERATION);
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set_retract_acceleration(DEFAULT_RETRACT_ACCELERATION);
set_minimum_feedrate(DEFAULT_MINIMUM_FEEDRATE);
set_minimum_travel_feedrate(DEFAULT_MINIMUM_TRAVEL_FEEDRATE);
set_extrude_factor_override_percentage(DEFAULT_EXTRUDE_FACTOR_OVERRIDE_PERCENTAGE);
for (unsigned char a = X; a < Num_Axis; ++a)
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{
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EAxis axis = (EAxis)a;
set_axis_max_feedrate(axis, DEFAULT_AXIS_MAX_FEEDRATE[a]);
set_axis_max_acceleration(axis, DEFAULT_AXIS_MAX_ACCELERATION[a]);
set_axis_max_jerk(axis, DEFAULT_AXIS_MAX_JERK[a]);
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}
_state.filament_load_times.clear();
_state.filament_unload_times.clear();
}
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void GCodeTimeEstimator::reset()
{
_reset_time();
#if ENABLE_MOVE_STATS
_moves_stats.clear();
#endif // ENABLE_MOVE_STATS
_reset_blocks();
_reset();
}
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float GCodeTimeEstimator::get_time() const
{
return _time;
}
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std::string GCodeTimeEstimator::get_time_dhms() const
{
return _get_time_dhms(get_time());
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}
std::string GCodeTimeEstimator::get_time_minutes() const
{
return _get_time_minutes(get_time());
}
void GCodeTimeEstimator::_reset()
{
_curr.reset();
_prev.reset();
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set_axis_position(X, 0.0f);
set_axis_position(Y, 0.0f);
set_axis_position(Z, 0.0f);
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set_additional_time(0.0f);
reset_extruder_id();
reset_g1_line_id();
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_g1_line_ids.clear();
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_last_st_synchronized_block_id = -1;
}
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void GCodeTimeEstimator::_reset_time()
{
_time = 0.0f;
}
void GCodeTimeEstimator::_reset_blocks()
{
_blocks.clear();
}
void GCodeTimeEstimator::_calculate_time()
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{
PROFILE_FUNC();
_forward_pass();
_reverse_pass();
_recalculate_trapezoids();
_time += get_additional_time();
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for (int i = _last_st_synchronized_block_id + 1; i < (int)_blocks.size(); ++i)
{
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Block& block = _blocks[i];
#if ENABLE_MOVE_STATS
float block_time = 0.0f;
block_time += block.acceleration_time();
block_time += block.cruise_time();
block_time += block.deceleration_time();
_time += block_time;
block.elapsed_time = _time;
MovesStatsMap::iterator it = _moves_stats.find(block.move_type);
if (it == _moves_stats.end())
it = _moves_stats.insert(MovesStatsMap::value_type(block.move_type, MoveStats())).first;
it->second.count += 1;
it->second.time += block_time;
#else
_time += block.acceleration_time();
_time += block.cruise_time();
_time += block.deceleration_time();
block.elapsed_time = _time;
#endif // ENABLE_MOVE_STATS
}
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_last_st_synchronized_block_id = _blocks.size() - 1;
}
void GCodeTimeEstimator::_process_gcode_line(GCodeReader&, const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
std::string cmd = line.cmd();
if (cmd.length() > 1)
{
switch (::toupper(cmd[0]))
{
case 'G':
{
switch (::atoi(&cmd[1]))
{
case 1: // Move
{
_processG1(line);
break;
}
case 4: // Dwell
{
_processG4(line);
break;
}
case 20: // Set Units to Inches
{
_processG20(line);
break;
}
case 21: // Set Units to Millimeters
{
_processG21(line);
break;
}
case 28: // Move to Origin (Home)
{
_processG28(line);
break;
}
case 90: // Set to Absolute Positioning
{
_processG90(line);
break;
}
case 91: // Set to Relative Positioning
{
_processG91(line);
break;
}
case 92: // Set Position
{
_processG92(line);
break;
}
}
break;
}
case 'M':
{
switch (::atoi(&cmd[1]))
{
case 1: // Sleep or Conditional stop
{
_processM1(line);
break;
}
case 82: // Set extruder to absolute mode
{
_processM82(line);
break;
}
case 83: // Set extruder to relative mode
{
_processM83(line);
break;
}
case 109: // Set Extruder Temperature and Wait
{
_processM109(line);
break;
}
case 201: // Set max printing acceleration
{
_processM201(line);
break;
}
case 203: // Set maximum feedrate
{
_processM203(line);
break;
}
case 204: // Set default acceleration
{
_processM204(line);
break;
}
case 205: // Advanced settings
{
_processM205(line);
break;
}
case 221: // Set extrude factor override percentage
{
_processM221(line);
break;
}
case 566: // Set allowable instantaneous speed change
{
_processM566(line);
break;
}
case 702: // MK3 MMU2: Process the final filament unload.
{
_processM702(line);
break;
}
}
break;
}
case 'T': // Select Tools
{
_processT(line);
break;
}
}
}
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}
// Returns the new absolute position on the given axis in dependence of the given parameters
float axis_absolute_position_from_G1_line(GCodeTimeEstimator::EAxis axis, const GCodeReader::GCodeLine& lineG1, GCodeTimeEstimator::EUnits units, bool is_relative, float current_absolute_position)
{
float lengthsScaleFactor = (units == GCodeTimeEstimator::Inches) ? INCHES_TO_MM : 1.0f;
if (lineG1.has(Slic3r::Axis(axis)))
{
float ret = lineG1.value(Slic3r::Axis(axis)) * lengthsScaleFactor;
return is_relative ? current_absolute_position + ret : ret;
}
else
return current_absolute_position;
}
void GCodeTimeEstimator::_processG1(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
increment_g1_line_id();
// updates axes positions from line
EUnits units = get_units();
float new_pos[Num_Axis];
for (unsigned char a = X; a < Num_Axis; ++a)
{
bool is_relative = (get_global_positioning_type() == Relative);
if (a == E)
is_relative |= (get_e_local_positioning_type() == Relative);
new_pos[a] = axis_absolute_position_from_G1_line((EAxis)a, line, units, is_relative, get_axis_position((EAxis)a));
}
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// updates feedrate from line, if present
if (line.has_f())
set_feedrate(std::max(line.f() * MMMIN_TO_MMSEC, get_minimum_feedrate()));
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// fills block data
Block block;
// calculates block movement deltas
float max_abs_delta = 0.0f;
for (unsigned char a = X; a < Num_Axis; ++a)
{
block.delta_pos[a] = new_pos[a] - get_axis_position((EAxis)a);
max_abs_delta = std::max(max_abs_delta, std::abs(block.delta_pos[a]));
}
// is it a move ?
if (max_abs_delta == 0.0f)
return;
// calculates block feedrate
_curr.feedrate = std::max(get_feedrate(), block.is_travel_move() ? get_minimum_travel_feedrate() : get_minimum_feedrate());
float distance = block.move_length();
float invDistance = 1.0f / distance;
float min_feedrate_factor = 1.0f;
for (unsigned char a = X; a < Num_Axis; ++a)
{
_curr.axis_feedrate[a] = _curr.feedrate * block.delta_pos[a] * invDistance;
if (a == E)
_curr.axis_feedrate[a] *= get_extrude_factor_override_percentage();
_curr.abs_axis_feedrate[a] = std::abs(_curr.axis_feedrate[a]);
if (_curr.abs_axis_feedrate[a] > 0.0f)
min_feedrate_factor = std::min(min_feedrate_factor, get_axis_max_feedrate((EAxis)a) / _curr.abs_axis_feedrate[a]);
}
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block.feedrate.cruise = min_feedrate_factor * _curr.feedrate;
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if (min_feedrate_factor < 1.0f)
{
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for (unsigned char a = X; a < Num_Axis; ++a)
{
_curr.axis_feedrate[a] *= min_feedrate_factor;
_curr.abs_axis_feedrate[a] *= min_feedrate_factor;
}
}
// calculates block acceleration
float acceleration = block.is_extruder_only_move() ? get_retract_acceleration() : get_acceleration();
for (unsigned char a = X; a < Num_Axis; ++a)
{
float axis_max_acceleration = get_axis_max_acceleration((EAxis)a);
if (acceleration * std::abs(block.delta_pos[a]) * invDistance > axis_max_acceleration)
acceleration = axis_max_acceleration;
}
block.acceleration = acceleration;
// calculates block exit feedrate
_curr.safe_feedrate = block.feedrate.cruise;
for (unsigned char a = X; a < Num_Axis; ++a)
{
float axis_max_jerk = get_axis_max_jerk((EAxis)a);
if (_curr.abs_axis_feedrate[a] > axis_max_jerk)
_curr.safe_feedrate = std::min(_curr.safe_feedrate, axis_max_jerk);
}
block.feedrate.exit = _curr.safe_feedrate;
// calculates block entry feedrate
float vmax_junction = _curr.safe_feedrate;
if (!_blocks.empty() && (_prev.feedrate > PREVIOUS_FEEDRATE_THRESHOLD))
{
bool prev_speed_larger = _prev.feedrate > block.feedrate.cruise;
float smaller_speed_factor = prev_speed_larger ? (block.feedrate.cruise / _prev.feedrate) : (_prev.feedrate / block.feedrate.cruise);
// Pick the smaller of the nominal speeds. Higher speed shall not be achieved at the junction during coasting.
vmax_junction = prev_speed_larger ? block.feedrate.cruise : _prev.feedrate;
float v_factor = 1.0f;
bool limited = false;
for (unsigned char a = X; a < Num_Axis; ++a)
{
// Limit an axis. We have to differentiate coasting from the reversal of an axis movement, or a full stop.
float v_exit = _prev.axis_feedrate[a];
float v_entry = _curr.axis_feedrate[a];
if (prev_speed_larger)
v_exit *= smaller_speed_factor;
if (limited)
{
v_exit *= v_factor;
v_entry *= v_factor;
}
// Calculate the jerk depending on whether the axis is coasting in the same direction or reversing a direction.
float jerk =
(v_exit > v_entry) ?
(((v_entry > 0.0f) || (v_exit < 0.0f)) ?
// coasting
(v_exit - v_entry) :
// axis reversal
std::max(v_exit, -v_entry)) :
// v_exit <= v_entry
(((v_entry < 0.0f) || (v_exit > 0.0f)) ?
// coasting
(v_entry - v_exit) :
// axis reversal
std::max(-v_exit, v_entry));
float axis_max_jerk = get_axis_max_jerk((EAxis)a);
if (jerk > axis_max_jerk)
{
v_factor *= axis_max_jerk / jerk;
limited = true;
}
}
if (limited)
vmax_junction *= v_factor;
// Now the transition velocity is known, which maximizes the shared exit / entry velocity while
// respecting the jerk factors, it may be possible, that applying separate safe exit / entry velocities will achieve faster prints.
float vmax_junction_threshold = vmax_junction * 0.99f;
// Not coasting. The machine will stop and start the movements anyway, better to start the segment from start.
if ((_prev.safe_feedrate > vmax_junction_threshold) && (_curr.safe_feedrate > vmax_junction_threshold))
vmax_junction = _curr.safe_feedrate;
}
float v_allowable = Block::max_allowable_speed(-acceleration, _curr.safe_feedrate, distance);
block.feedrate.entry = std::min(vmax_junction, v_allowable);
block.max_entry_speed = vmax_junction;
block.flags.nominal_length = (block.feedrate.cruise <= v_allowable);
block.flags.recalculate = true;
block.safe_feedrate = _curr.safe_feedrate;
// calculates block trapezoid
block.calculate_trapezoid();
// updates previous
_prev = _curr;
// updates axis positions
for (unsigned char a = X; a < Num_Axis; ++a)
{
set_axis_position((EAxis)a, new_pos[a]);
}
#if ENABLE_MOVE_STATS
// detects block move type
block.move_type = Block::Noop;
if (block.delta_pos[E] < 0.0f)
{
if ((block.delta_pos[X] != 0.0f) || (block.delta_pos[Y] != 0.0f) || (block.delta_pos[Z] != 0.0f))
block.move_type = Block::Move;
else
block.move_type = Block::Retract;
}
else if (block.delta_pos[E] > 0.0f)
{
if ((block.delta_pos[X] == 0.0f) && (block.delta_pos[Y] == 0.0f) && (block.delta_pos[Z] == 0.0f))
block.move_type = Block::Unretract;
else if ((block.delta_pos[X] != 0.0f) || (block.delta_pos[Y] != 0.0f))
block.move_type = Block::Extrude;
}
else if ((block.delta_pos[X] != 0.0f) || (block.delta_pos[Y] != 0.0f) || (block.delta_pos[Z] != 0.0f))
block.move_type = Block::Move;
#endif // ENABLE_MOVE_STATS
// adds block to blocks list
_blocks.emplace_back(block);
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_g1_line_ids.insert(G1LineIdToBlockIdMap::value_type(get_g1_line_id(), (unsigned int)_blocks.size() - 1));
}
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void GCodeTimeEstimator::_processG4(const GCodeReader::GCodeLine& line)
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{
PROFILE_FUNC();
GCodeFlavor dialect = get_dialect();
float value;
if (line.has_value('P', value))
add_additional_time(value * MILLISEC_TO_SEC);
// see: http://reprap.org/wiki/G-code#G4:_Dwell
if ((dialect == gcfRepetier) ||
(dialect == gcfMarlin) ||
(dialect == gcfSmoothie) ||
(dialect == gcfRepRap))
{
if (line.has_value('S', value))
add_additional_time(value);
}
_simulate_st_synchronize();
}
void GCodeTimeEstimator::_processG20(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
set_units(Inches);
}
void GCodeTimeEstimator::_processG21(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
set_units(Millimeters);
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}
void GCodeTimeEstimator::_processG28(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
// TODO
}
void GCodeTimeEstimator::_processG90(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
set_global_positioning_type(Absolute);
}
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void GCodeTimeEstimator::_processG91(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
set_global_positioning_type(Relative);
}
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void GCodeTimeEstimator::_processG92(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
float lengthsScaleFactor = (get_units() == Inches) ? INCHES_TO_MM : 1.0f;
bool anyFound = false;
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if (line.has_x())
{
set_axis_position(X, line.x() * lengthsScaleFactor);
anyFound = true;
}
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if (line.has_y())
{
set_axis_position(Y, line.y() * lengthsScaleFactor);
anyFound = true;
}
if (line.has_z())
{
set_axis_position(Z, line.z() * lengthsScaleFactor);
anyFound = true;
}
if (line.has_e())
{
set_axis_position(E, line.e() * lengthsScaleFactor);
anyFound = true;
}
else
_simulate_st_synchronize();
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if (!anyFound)
{
for (unsigned char a = X; a < Num_Axis; ++a)
{
set_axis_position((EAxis)a, 0.0f);
}
}
}
void GCodeTimeEstimator::_processM1(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
_simulate_st_synchronize();
}
void GCodeTimeEstimator::_processM82(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
set_e_local_positioning_type(Absolute);
}
void GCodeTimeEstimator::_processM83(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
set_e_local_positioning_type(Relative);
}
void GCodeTimeEstimator::_processM109(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
// TODO
}
void GCodeTimeEstimator::_processM201(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
GCodeFlavor dialect = get_dialect();
// see http://reprap.org/wiki/G-code#M201:_Set_max_printing_acceleration
float factor = ((dialect != gcfRepRap) && (get_units() == GCodeTimeEstimator::Inches)) ? INCHES_TO_MM : 1.0f;
if (line.has_x())
set_axis_max_acceleration(X, line.x() * factor);
if (line.has_y())
set_axis_max_acceleration(Y, line.y() * factor);
if (line.has_z())
set_axis_max_acceleration(Z, line.z() * factor);
if (line.has_e())
set_axis_max_acceleration(E, line.e() * factor);
}
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void GCodeTimeEstimator::_processM203(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
GCodeFlavor dialect = get_dialect();
// see http://reprap.org/wiki/G-code#M203:_Set_maximum_feedrate
if (dialect == gcfRepetier)
return;
// see http://reprap.org/wiki/G-code#M203:_Set_maximum_feedrate
float factor = (dialect == gcfMarlin) ? 1.0f : MMMIN_TO_MMSEC;
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if (line.has_x())
set_axis_max_feedrate(X, line.x() * factor);
if (line.has_y())
set_axis_max_feedrate(Y, line.y() * factor);
if (line.has_z())
set_axis_max_feedrate(Z, line.z() * factor);
if (line.has_e())
set_axis_max_feedrate(E, line.e() * factor);
}
void GCodeTimeEstimator::_processM204(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
float value;
if (line.has_value('S', value)) {
// Legacy acceleration format. This format is used by the legacy Marlin, MK2 or MK3 firmware,
// and it is also generated by Slic3r to control acceleration per extrusion type
// (there is a separate acceleration settings in Slicer for perimeter, first layer etc).
set_acceleration(value);
if (line.has_value('T', value))
set_retract_acceleration(value);
} else {
// New acceleration format, compatible with the upstream Marlin.
if (line.has_value('P', value))
set_acceleration(value);
if (line.has_value('R', value))
set_retract_acceleration(value);
if (line.has_value('T', value)) {
// Interpret the T value as the travel acceleration in the new Marlin format.
//FIXME Prusa3D firmware currently does not support travel acceleration value independent from the extruding acceleration value.
// set_travel_acceleration(value);
}
}
}
void GCodeTimeEstimator::_processM205(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
if (line.has_x())
{
float max_jerk = line.x();
set_axis_max_jerk(X, max_jerk);
set_axis_max_jerk(Y, max_jerk);
}
if (line.has_y())
set_axis_max_jerk(Y, line.y());
if (line.has_z())
set_axis_max_jerk(Z, line.z());
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if (line.has_e())
set_axis_max_jerk(E, line.e());
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float value;
if (line.has_value('S', value))
set_minimum_feedrate(value);
if (line.has_value('T', value))
set_minimum_travel_feedrate(value);
}
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void GCodeTimeEstimator::_processM221(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
float value_s;
float value_t;
if (line.has_value('S', value_s) && !line.has_value('T', value_t))
set_extrude_factor_override_percentage(value_s * 0.01f);
}
void GCodeTimeEstimator::_processM566(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
if (line.has_x())
set_axis_max_jerk(X, line.x() * MMMIN_TO_MMSEC);
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if (line.has_y())
set_axis_max_jerk(Y, line.y() * MMMIN_TO_MMSEC);
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if (line.has_z())
set_axis_max_jerk(Z, line.z() * MMMIN_TO_MMSEC);
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if (line.has_e())
set_axis_max_jerk(E, line.e() * MMMIN_TO_MMSEC);
}
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void GCodeTimeEstimator::_processM702(const GCodeReader::GCodeLine& line)
{
PROFILE_FUNC();
if (line.has('C')) {
// MK3 MMU2 specific M code:
// M702 C is expected to be sent by the custom end G-code when finalizing a print.
// The MK3 unit shall unload and park the active filament into the MMU2 unit.
add_additional_time(get_filament_unload_time(get_extruder_id()));
reset_extruder_id();
_simulate_st_synchronize();
}
}
void GCodeTimeEstimator::_processT(const GCodeReader::GCodeLine& line)
{
std::string cmd = line.cmd();
if (cmd.length() > 1)
{
unsigned int id = (unsigned int)::strtol(cmd.substr(1).c_str(), nullptr, 10);
if (get_extruder_id() != id)
{
// Specific to the MK3 MMU2: The initial extruder ID is set to -1 indicating
// that the filament is parked in the MMU2 unit and there is nothing to be unloaded yet.
add_additional_time(get_filament_unload_time(get_extruder_id()));
set_extruder_id(id);
add_additional_time(get_filament_load_time(get_extruder_id()));
_simulate_st_synchronize();
}
}
}
void GCodeTimeEstimator::_simulate_st_synchronize()
{
PROFILE_FUNC();
_calculate_time();
}
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void GCodeTimeEstimator::_forward_pass()
{
PROFILE_FUNC();
if (_blocks.size() > 1)
{
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for (int i = _last_st_synchronized_block_id + 1; i < (int)_blocks.size() - 1; ++i)
{
_planner_forward_pass_kernel(_blocks[i], _blocks[i + 1]);
}
}
}
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void GCodeTimeEstimator::_reverse_pass()
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{
PROFILE_FUNC();
if (_blocks.size() > 1)
{
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for (int i = (int)_blocks.size() - 1; i >= _last_st_synchronized_block_id + 2; --i)
{
_planner_reverse_pass_kernel(_blocks[i - 1], _blocks[i]);
}
}
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}
void GCodeTimeEstimator::_planner_forward_pass_kernel(Block& prev, Block& curr)
{
PROFILE_FUNC();
// If the previous block is an acceleration block, but it is not long enough to complete the
// full speed change within the block, we need to adjust the entry speed accordingly. Entry
// speeds have already been reset, maximized, and reverse planned by reverse planner.
// If nominal length is true, max junction speed is guaranteed to be reached. No need to recheck.
if (!prev.flags.nominal_length)
{
if (prev.feedrate.entry < curr.feedrate.entry)
{
float entry_speed = std::min(curr.feedrate.entry, Block::max_allowable_speed(-prev.acceleration, prev.feedrate.entry, prev.move_length()));
// Check for junction speed change
if (curr.feedrate.entry != entry_speed)
{
curr.feedrate.entry = entry_speed;
curr.flags.recalculate = true;
}
}
}
}
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void GCodeTimeEstimator::_planner_reverse_pass_kernel(Block& curr, Block& next)
{
// If entry speed is already at the maximum entry speed, no need to recheck. Block is cruising.
// If not, block in state of acceleration or deceleration. Reset entry speed to maximum and
// check for maximum allowable speed reductions to ensure maximum possible planned speed.
if (curr.feedrate.entry != curr.max_entry_speed)
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{
// If nominal length true, max junction speed is guaranteed to be reached. Only compute
// for max allowable speed if block is decelerating and nominal length is false.
if (!curr.flags.nominal_length && (curr.max_entry_speed > next.feedrate.entry))
curr.feedrate.entry = std::min(curr.max_entry_speed, Block::max_allowable_speed(-curr.acceleration, next.feedrate.entry, curr.move_length()));
else
curr.feedrate.entry = curr.max_entry_speed;
curr.flags.recalculate = true;
}
}
void GCodeTimeEstimator::_recalculate_trapezoids()
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{
PROFILE_FUNC();
Block* curr = nullptr;
Block* next = nullptr;
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for (int i = _last_st_synchronized_block_id + 1; i < (int)_blocks.size(); ++i)
{
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Block& b = _blocks[i];
curr = next;
next = &b;
if (curr != nullptr)
{
// Recalculate if current block entry or exit junction speed has changed.
if (curr->flags.recalculate || next->flags.recalculate)
{
// NOTE: Entry and exit factors always > 0 by all previous logic operations.
Block block = *curr;
block.feedrate.exit = next->feedrate.entry;
block.calculate_trapezoid();
curr->trapezoid = block.trapezoid;
curr->flags.recalculate = false; // Reset current only to ensure next trapezoid is computed
}
}
}
// Last/newest block in buffer. Always recalculated.
if (next != nullptr)
{
Block block = *next;
block.feedrate.exit = next->safe_feedrate;
block.calculate_trapezoid();
next->trapezoid = block.trapezoid;
next->flags.recalculate = false;
}
}
std::string GCodeTimeEstimator::_get_time_dhms(float time_in_secs)
{
int days = (int)(time_in_secs / 86400.0f);
time_in_secs -= (float)days * 86400.0f;
int hours = (int)(time_in_secs / 3600.0f);
time_in_secs -= (float)hours * 3600.0f;
int minutes = (int)(time_in_secs / 60.0f);
time_in_secs -= (float)minutes * 60.0f;
char buffer[64];
if (days > 0)
::sprintf(buffer, "%dd %dh %dm %ds", days, hours, minutes, (int)time_in_secs);
else if (hours > 0)
::sprintf(buffer, "%dh %dm %ds", hours, minutes, (int)time_in_secs);
else if (minutes > 0)
::sprintf(buffer, "%dm %ds", minutes, (int)time_in_secs);
else
::sprintf(buffer, "%ds", (int)time_in_secs);
return buffer;
}
std::string GCodeTimeEstimator::_get_time_minutes(float time_in_secs)
{
return std::to_string((int)(::roundf(time_in_secs / 60.0f)));
}
#if ENABLE_MOVE_STATS
void GCodeTimeEstimator::_log_moves_stats() const
{
float moves_count = 0.0f;
for (const MovesStatsMap::value_type& move : _moves_stats)
{
moves_count += (float)move.second.count;
}
for (const MovesStatsMap::value_type& move : _moves_stats)
{
std::cout << MOVE_TYPE_STR[move.first];
std::cout << ": count " << move.second.count << " (" << 100.0f * (float)move.second.count / moves_count << "%)";
std::cout << " - time: " << move.second.time << "s (" << 100.0f * move.second.time / _time << "%)";
std::cout << std::endl;
}
std::cout << std::endl;
}
#endif // ENABLE_MOVE_STATS
}