3DPrinting/PrusaSlicer-NonPlainar
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Pm jps path finding ()

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New step - estimation of curling on both the model and the support extrusions.
Improvements in curled filament estimation algortihm
Implementation of Jump Point Search algorithm 
Use of JPS algorithm to avoid curled extrusions during travel moves in Gcode export
This commit is contained in:
Pavel Mikuš 2022-11-09 13:33:58 +01:00 • committed by GitHub
parent 06fbab12fe
commit 633ce8aa21
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GPG key ID: 4AEE18F83AFDEB23
18 changed files with 687 additions and 31 deletions
src/libslic3r
GCode.cpp

19
src/libslic3r/GCode.cpp
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@ -7,6 +7,9 @@
#include "GCode/PrintExtents.hpp"
#include "GCode/Thumbnails.hpp"
#include "GCode/WipeTower.hpp"
#include "Point.hpp"
#include "Polygon.hpp"
#include "PrintConfig.hpp"
#include "ShortestPath.hpp"
#include "Print.hpp"
#include "Thread.hpp"
@ -2347,6 +2350,14 @@ LayerResult GCode::process_layer(
}
} // for objects
if (this->config().avoid_curled_filament_during_travels) {
m_avoid_curled_filaments.clear();
for (const LayerToPrint &layer_to_print : layers) {
m_avoid_curled_filaments.add_obstacles(layer_to_print.object_layer, Point(scaled(this->origin())));
m_avoid_curled_filaments.add_obstacles(layer_to_print.support_layer, Point(scaled(this->origin())));
}
}
// Extrude the skirt, brim, support, perimeters, infill ordered by the extruders.
for (unsigned int extruder_id : layer_tools.extruders)
{
@ -2405,7 +2416,7 @@ LayerResult GCode::process_layer(
for (int print_wipe_extrusions = is_anything_overridden; print_wipe_extrusions>=0; --print_wipe_extrusions) {
if (is_anything_overridden && print_wipe_extrusions == 0)
gcode+="; PURGING FINISHED\n";
for (InstanceToPrint &instance_to_print : instances_to_print) {
const LayerToPrint &layer_to_print = layers[instance_to_print.layer_id];
// To control print speed of the 1st object layer printed over raft interface.
@ -3071,6 +3082,12 @@ std::string GCode::travel_to(const Point &point, ExtrusionRole role, std::string
this->origin in order to get G-code coordinates. */
Polyline travel { this->last_pos(), point };
if (this->config().avoid_curled_filament_during_travels) {
Point scaled_origin = Point(scaled(this->origin()));
travel = m_avoid_curled_filaments.find_path(this->last_pos() + scaled_origin, point + scaled_origin);
travel.translate(-scaled_origin);
}
// check whether a straight travel move would need retraction
bool needs_retraction = this->needs_retraction(travel, role);
// check whether wipe could be disabled without causing visible stringing