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Accumulate the total estimated print in doubles instead of floats.

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Because total print time is typically a big floating point number and the time of trapezoid is typically a small number, summing those numbers leads to a loss in precision. Switching to doubles reduces the loss of precision.

(cherry picked from commit c5982f40196c178bd824c556ac11e8c6f67d5e7a)
This commit is contained in:
Lukáš Hejl
2024-08-16 08:35:49 -04:00
committed by Andrew Sun
parent bec883e667
commit bdbeb34158
2 changed files with 9 additions and 7 deletions
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6
src/libslic3r/GCode/GCodeProcessor.hpp
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@@ -459,7 +459,7 @@ class Print;
AxisCoords axis_feedrate; // mm/s
AxisCoords abs_axis_feedrate; // mm/s
//BBS: unit vector of enter speed and exit speed in x-y-z space.
//BBS: unit vector of enter speed and exit speed in x-y-z space.
//For line move, there are same. For arc move, there are different.
Vec3f enter_direction;
Vec3f exit_direction;
@@ -508,7 +508,9 @@ class Print;
// hard limit for the travel acceleration, to which the firmware will clamp.
float max_travel_acceleration; // mm/s^2
float extrude_factor_override_percentage;
float time; // s
// We accumulate total print time in doubles to reduce the loss of precision
// while adding big floating numbers with small float numbers.
double time; // s
struct StopTime
{
unsigned int g1_line_id;