CMS/Marlin
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Minor DELTA segmentation speedup

Browse Source 
Minor DELTA segmentation speedup by pulling calculations out of the loop.
This commit is contained in:
AnHardt 2016-05-18 01:49:30 +02:00
parent ce1d6981c2
commit 41e9569dbc
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Marlin/Marlin_main.cpp
View File

@ -7314,8 +7314,10 @@ void mesh_buffer_line(float x, float y, float z, const float e, float feed_rate,
float cartesian_mm = sqrt(sq(difference[X_AXIS]) + sq(difference[Y_AXIS]) + sq(difference[Z_AXIS]));
if (cartesian_mm < 0.000001) cartesian_mm = abs(difference[E_AXIS]);
if (cartesian_mm < 0.000001) return false;
float seconds = 6000 * cartesian_mm / feedrate / feedrate_multiplier;
float _feedrate = feedrate * feedrate_multiplier / 6000.0;
float seconds = cartesian_mm / _feedrate;
int steps = max(1, int(delta_segments_per_second * seconds));
float inv_steps = 1.0/steps;
// SERIAL_ECHOPGM("mm="); SERIAL_ECHO(cartesian_mm);
// SERIAL_ECHOPGM(" seconds="); SERIAL_ECHO(seconds);
@ -7323,7 +7325,7 @@ void mesh_buffer_line(float x, float y, float z, const float e, float feed_rate,
for (int s = 1; s <= steps; s++) {
float fraction = float(s) / float(steps);
float fraction = float(s) * inv_steps;
for (int8_t i = 0; i < NUM_AXIS; i++)
target[i] = current_position[i] + difference[i] * fraction;
@ -7337,7 +7339,7 @@ void mesh_buffer_line(float x, float y, float z, const float e, float feed_rate,
//DEBUG_POS("prepare_move_delta", target);
//DEBUG_POS("prepare_move_delta", delta);
planner.buffer_line(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], target[E_AXIS], feedrate / 60 * feedrate_multiplier / 100.0, active_extruder);
planner.buffer_line(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], target[E_AXIS], _feedrate, active_extruder);
}
return true;
}