bool MergeInfillLines::mergeInfillLines(double speed, unsigned int& path_idx)
{ //Check for lots of small moves and combine them into one large line
Point prev_middle;
Point last_middle;
int64_t line_width;
if (isConvertible(path_idx, prev_middle, last_middle, line_width, false))
{
// path_idx + 3 is the index of the second extrusion move to be converted in combination with the first
{
GCodePath& move_path = paths[path_idx];
for(unsigned int point_idx = 0; point_idx < move_path.points.size() - 1; point_idx++)
{
gcode.writeMove(move_path.points[point_idx], speed, move_path.getExtrusionMM3perMM());
}
gcode.writeMove(prev_middle, travelConfig.getSpeed(), 0);
GCodePath& last_path = paths[path_idx + 3];
writeCompensatedMove(last_middle, speed, last_path, line_width);
}
path_idx += 2;
extruder_plan.handleInserts(path_idx, gcode);
for (; isConvertible(path_idx, prev_middle, last_middle, line_width, true); path_idx += 2)
{
extruder_plan.handleInserts(path_idx, gcode);
GCodePath& last_path = paths[path_idx + 3];
writeCompensatedMove(last_middle, speed, last_path, line_width);
}
path_idx = path_idx + 1; // means that the next path considered is the travel path after the converted extrusion path corresponding to the updated path_idx
extruder_plan.handleInserts(path_idx, gcode);
return true;
}
return false;
};
bool MergeInfillLines::isConvertible(unsigned int path_idx_first_move, Point& first_middle, Point& second_middle, int64_t& resulting_line_width, bool use_second_middle_as_first)
{
unsigned int idx = path_idx_first_move;
if (idx + 3 > paths.size()-1)
{
return false;
}
if ( paths[idx+0].config != &travelConfig // must be travel
|| paths[idx+1].points.size() > 1
|| paths[idx+1].config == &travelConfig // must be extrusion
// || paths[idx+2].points.size() > 1
|| paths[idx+2].config != &travelConfig // must be travel
|| paths[idx+3].points.size() > 1
|| paths[idx+3].config == &travelConfig // must be extrusion
|| paths[idx+1].config != paths[idx+3].config // both extrusion moves should have the same config
)
{
return false;
}
int64_t line_width = paths[idx+1].config->getLineWidth();
Point& a = paths[idx+0].points.back(); // first extruded line from
Point& b = paths[idx+1].points.back(); // first extruded line to
Point& c = paths[idx+2].points.back(); // second extruded line from
Point& d = paths[idx+3].points.back(); // second extruded line to
return isConvertible(a, b, c, d, line_width, first_middle, second_middle, resulting_line_width, use_second_middle_as_first);
}
bool MergeInfillLines::isConvertible(unsigned int path_idx_first_move, Point& first_middle, Point& second_middle, int64_t& resulting_line_width, bool use_second_middle_as_first)
{
unsigned int idx = path_idx_first_move;
if (idx + 3 > paths.size()-1)
{
return false;
}
if ( paths[idx+0].config != &travelConfig // must be travel
|| paths[idx+1].points.size() > 1 // extrusion path is single line
|| paths[idx+1].config == &travelConfig // must be extrusion
// || paths[idx+2].points.size() > 1 // travel must be direct
|| paths[idx+2].config != &travelConfig // must be travel
|| paths[idx+3].points.size() > 1 // extrusion path is single line
|| paths[idx+3].config == &travelConfig // must be extrusion
|| paths[idx+1].config != paths[idx+3].config // both extrusion moves should have the same config
)
{
return false;
}
if (!(paths[idx+1].config->type == PrintFeatureType::Infill || paths[idx+1].config->type == PrintFeatureType::Skin))
{ // only (skin) infill lines can be merged (note that the second extrusion line config is already checked to be the same as the first in code above)
return false;
}
if (paths[idx+1].space_fill_type != SpaceFillType::Lines || paths[idx+3].space_fill_type != SpaceFillType::Lines)
{ // both extrusion moves must be of lines space filling type!
return false;
}
int64_t line_width = paths[idx+1].config->getLineWidth();
Point& a = paths[idx+0].points.back(); // first extruded line from
Point& b = paths[idx+1].points.back(); // first extruded line to
Point& c = paths[idx+2].points.back(); // second extruded line from
Point& d = paths[idx+3].points.back(); // second extruded line to
return isConvertible(a, b, c, d, line_width, first_middle, second_middle, resulting_line_width, use_second_middle_as_first);
}