3DPrinting/PrusaSlicer-NonPlainar
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increase snapping angle

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This commit is contained in:
Pavel Mikus 2022-07-08 19:35:26 +02:00
parent 768bfd5c7f
commit 40408c2178
2 changed files with 10 additions and 15 deletions
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19
src/libslic3r/GCode/SeamPlacer.cpp
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@ -839,7 +839,7 @@ struct SeamComparator {
float weight(const SeamCandidate &a) const {
if (setup == SeamPosition::spAligned && a.central_enforcer) {
return 3.0f;
return 2.0f;
}
return a.visibility + angle_importance * compute_angle_penalty(a.local_ccw_angle) / (1.0f + angle_importance);
}
@ -1206,7 +1206,6 @@ std::vector<std::pair<size_t, size_t>> SeamPlacer::find_seam_string(const PrintO
string_weight = 0.0f;
const std::vector<PrintObjectSeamData::LayerSeams> &layers = m_seam_per_object.find(po)->second.layers;
int layer_idx = start_seam.first;
int seam_index = start_seam.second;
//initialize searching for seam string - cluster of nearby seams on previous and next layers
int next_layer = layer_idx + 1;
@ -1223,7 +1222,7 @@ std::vector<std::pair<size_t, size_t>> SeamPlacer::find_seam_string(const PrintO
};
while (next_layer >= 0) {
if (next_layer >= layers.size()) {
if (next_layer >= int(layers.size())) {
reverse_lookup_direction();
if (next_layer < 0) {
break;
@ -1249,7 +1248,7 @@ std::vector<std::pair<size_t, size_t>> SeamPlacer::find_seam_string(const PrintO
prev_point_index = seam_string.back();
//String added, prev_point_index updated
Vec3f dir = (next_seam.position - prev_position);
straightening_dir = Vec3f(-dir.x()*0.7, -dir.y()*0.7, dir.z());
straightening_dir = Vec3f(-dir.x()*0.0, -dir.y()*0.0, dir.z());
} else {
if (step == 1) {
reverse_lookup_direction();
@ -1387,16 +1386,12 @@ void SeamPlacer::align_seam_points(const PrintObject *po, const SeamPlacerImpl::
// Do alignment - compute fitted point for each point in the string from its Z coord, and store the position into
// Perimeter structure of the point; also set flag aligned to true
auto sigmoid_angle_snapping_func = [](float angle){
float steepness = 10.0f;
float exp_val = steepness * (abs(angle) - SeamPlacer::sharp_angle_snapping_threshold);
float sig_term = exp(exp_val);
return sig_term / (sig_term + 1.0f);
};
for (size_t index = 0; index < seam_string.size(); ++index) {
const auto &pair = seam_string[index];
float t = sigmoid_angle_snapping_func(layers[pair.first].points[pair.second].local_ccw_angle);
const float t =
abs(layers[pair.first].points[pair.second].local_ccw_angle)
> SeamPlacer::sharp_angle_snapping_threshold
? 1.0 : 0.0f;
Vec3f current_pos = layers[pair.first].points[pair.second].position;
Vec2f fitted_pos = curve.get_fitted_value(current_pos.z());

6
src/libslic3r/GCode/SeamPlacer.hpp
View File

@ -127,8 +127,8 @@ public:
static constexpr size_t sqr_rays_per_sample_point = 5;
// arm length used during angles computation
static constexpr float polygon_local_angles_arm_distance = 0.3f;
static constexpr float sharp_angle_snapping_threshold = 0.3f * float(PI);
static constexpr float polygon_local_angles_arm_distance = 1.5f;
static constexpr float sharp_angle_snapping_threshold = 0.4f * float(PI);
// max tolerable distance from the previous layer is overhang_distance_tolerance_factor * flow_width
static constexpr float overhang_distance_tolerance_factor = 0.5f;
@ -150,7 +150,7 @@ public:
// minimum number of seams needed in cluster to make alignment happen
static constexpr size_t seam_align_minimum_string_seams = 6;
// millimeters covered by spline; determines number of splines for the given string
static constexpr size_t seam_align_mm_per_segment = 8.0f;
static constexpr size_t seam_align_mm_per_segment = 4.0f;
//The following data structures hold all perimeter points for all PrintObject.
std::unordered_map<const PrintObject*, PrintObjectSeamData> m_seam_per_object;