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Fix small area infill flow compensation (graph version) causing some lines to not extrude (#4374) #4399

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Fix small area infill flow compensation (graph version) causing some lines to not extrude (#4374) #4399

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16 changes: 7 additions & 9 deletions src/libslic3r/Config.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -358,26 +358,24 @@ size_t GraphData::data_size() const
}

double GraphData::interpolate(double x_value) const{
double y_value = 0.;
double y_value = 1.0f;
if (this->data_size() < 1) {
// nothing
} else if (this->graph_points.size() == 1 || this->graph_points.front().x() >= x_value) {
} else if (this->graph_points.size() == 1 || this->graph_points[begin_idx].x() >= x_value) {
y_value = this->graph_points.front().y();
} else if (this->graph_points.back().x() <= x_value) {
} else if (this->graph_points[end_idx - 1].x() <= x_value) {
y_value = this->graph_points.back().y();
} else {
// find first and second datapoint
for (size_t idx = this->begin_idx; idx < this->end_idx; ++idx) {
const auto &data_point = this->graph_points[idx];
if (data_point.x() == x_value) {
if (is_approx(data_point.x(), x_value)) {
// lucky point
y_value = data_point.y();
break;
return data_point.y();
} else if (data_point.x() < x_value) {
// not yet, iterate
} else if (idx == 0) {
y_value = data_point.y();
break;
return data_point.y();
} else {
// interpolate
const auto &data_point_before = this->graph_points[idx - 1];
Expand Down Expand Up @@ -453,7 +451,7 @@ double GraphData::interpolate(double x_value) const{
} else {
assert(false);
}
break;
return y_value;
}
}
}
Expand Down