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Fixed GCodeAnalyzer and GCodeTimeEstimator to avoid artifacts while rendering toolpaths due to numerical issues on extruder coordinate

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This commit is contained in:
Enrico Turri 2020-01-13 15:27:37 +01:00
parent 5fe3ddf26f
commit 91acbd01ed
2 changed files with 11 additions and 9 deletions
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16
src/libslic3r/GCode/Analyzer.cpp
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@ -311,24 +311,22 @@ void GCodeAnalyzer::_processG1(const GCodeReader::GCodeLine& line)
{
auto axis_absolute_position = [this](GCodeAnalyzer::EAxis axis, const GCodeReader::GCodeLine& lineG1) -> float
{
float current_absolute_position = _get_axis_position(axis);
float current_origin = _get_axis_origin(axis);
float lengthsScaleFactor = (_get_units() == GCodeAnalyzer::Inches) ? INCHES_TO_MM : 1.0f;
bool is_relative = (_get_global_positioning_type() == Relative);
if (axis == E)
is_relative |= (_get_e_local_positioning_type() == Relative);
if (lineG1.has(Slic3r::Axis(axis)))
{
float lengthsScaleFactor = (_get_units() == GCodeAnalyzer::Inches) ? INCHES_TO_MM : 1.0f;
float ret = lineG1.value(Slic3r::Axis(axis)) * lengthsScaleFactor;
return is_relative ? current_absolute_position + ret : ret + current_origin;
return is_relative ? _get_axis_position(axis) + ret : _get_axis_origin(axis) + ret;
}
else
return current_absolute_position;
return _get_axis_position(axis);
};
// updates axes positions from line
float new_pos[Num_Axis];
for (unsigned char a = X; a < Num_Axis; ++a)
{
@ -352,7 +350,7 @@ void GCodeAnalyzer::_processG1(const GCodeReader::GCodeLine& line)
if (delta_pos[E] < 0.0f)
{
if ((delta_pos[X] != 0.0f) || (delta_pos[Y] != 0.0f) || (delta_pos[Z] != 0.0f))
type = GCodeMove::Move;
type = GCodeMove::Move;
else
type = GCodeMove::Retract;
}
@ -440,7 +438,9 @@ void GCodeAnalyzer::_processG92(const GCodeReader::GCodeLine& line)
if (line.has_e())
{
_set_axis_origin(E, _get_axis_position(E) - line.e() * lengthsScaleFactor);
// extruder coordinate can grow to the point where its float representation does not allow for proper addition with small increments,
// we set the value taken from the G92 line as the new current position for it
_set_axis_position(E, line.e() * lengthsScaleFactor);
anyFound = true;
}

4
src/libslic3r/GCodeTimeEstimator.cpp
View File

@ -1261,7 +1261,9 @@ namespace Slic3r {
if (line.has_e())
{
set_axis_origin(E, get_axis_position(E) - line.e() * lengthsScaleFactor);
// extruder coordinate can grow to the point where its float representation does not allow for proper addition with small increments,
// we set the value taken from the G92 line as the new current position for it
set_axis_position(E, line.e() * lengthsScaleFactor);
anyFound = true;
}
else