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make supports bigger, improve malformations, TODO: do not support small extrusions, check part size

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This commit is contained in:
PavelMikus 2022-08-12 15:27:00 +02:00
parent 62c3ca5e99
commit 4eaa863ba4
3 changed files with 56 additions and 18 deletions
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27
src/libslic3r/SupportSpotsGenerator.cpp
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@ -15,8 +15,8 @@
#include "libslic3r/ClipperUtils.hpp"
#include "Geometry/ConvexHull.hpp"
//#define DETAILED_DEBUG_LOGS
//#define DEBUG_FILES
#define DETAILED_DEBUG_LOGS
#define DEBUG_FILES
#ifdef DEBUG_FILES
#include <boost/nowide/cstdio.hpp>
@ -337,6 +337,15 @@ struct ExtrusionPropertiesAccumulator {
}
};
// base function: ((e^(((1)/(x^(2)+1)))-1)/(e-1))
// checkout e.g. here: https://www.geogebra.org/calculator
float gauss(float value, float mean_x_coord, float mean_value, float falloff_speed) {
float shifted = value - mean_x_coord;
float denominator = falloff_speed * shifted * shifted + 1.0f;
float exponent = 1.0f / denominator;
return mean_value * (std::exp(exponent) - 1.0f) / (std::exp(1.0f) - 1.0f);
}
void check_extrusion_entity_stability(const ExtrusionEntity *entity,
std::vector<ExtrusionLine> &checked_lines_out,
float layer_z,
@ -407,7 +416,7 @@ void check_extrusion_entity_stability(const ExtrusionEntity *entity,
> params.bridge_distance / (1.0f + (bridging_acc.max_curvature
* params.bridge_distance_decrease_by_curvature_factor / PI));
bool between_layers_condition = fabs(dist_from_prev_layer) > 3.0f*flow_width ||
prev_layer_lines.get_line(nearest_line_idx).malformation > 0.6f;
prev_layer_lines.get_line(nearest_line_idx).malformation > 3.0f * layer_region->layer()->height;
if (in_layer_dist_condition && between_layers_condition) {
issues.support_points.emplace_back(to_vec3f(current_line.b), 0.0f, Vec3f(0.f, 0.0f, -1.0f));
@ -423,8 +432,8 @@ void check_extrusion_entity_stability(const ExtrusionEntity *entity,
}
if (dist_from_prev_layer > overhang_dist) {
malformation_acc.add_distance(current_line.len);
current_line.malformation += 0.3f
* (0.8f + 0.2f * malformation_acc.max_curvature / (1.0f + 0.5f * malformation_acc.distance));
current_line.malformation += layer_region->layer()->height * (0.5f +
1.5f * (malformation_acc.max_curvature / PI) * gauss(malformation_acc.distance, 5.0f, 1.0f, 0.2f));
} else {
malformation_acc.reset();
}
@ -729,7 +738,7 @@ public:
this->sticking_second_moment_of_area_accumulator,
this->sticking_second_moment_of_area_covariance_accumulator,
this->sticking_area)
* params.bed_adhesion_yield_strength;
* params.get_bed_adhesion_yield_strength();
float bed_weight_arm = (bed_centroid.head<2>() - mass_centroid.head<2>()).norm();
float bed_weight_torque = bed_weight_arm * weight;
@ -759,6 +768,10 @@ public:
BOOST_LOG_TRIVIAL(debug)
<< "SSG: bed_conflict_torque_arm: " << bed_conflict_torque_arm;
BOOST_LOG_TRIVIAL(debug)
<< "SSG: extruded_line.malformation: " << extruded_line.malformation;
BOOST_LOG_TRIVIAL(debug)
<< "SSG: extruder_conflict_force: " << extruder_conflict_force;
BOOST_LOG_TRIVIAL(debug)
<< "SSG: bed_extruder_conflict_torque: " << bed_extruder_conflict_torque;
BOOST_LOG_TRIVIAL(debug)
<< "SSG: total_torque: " << bed_total_torque << " layer_z: " << layer_z;
@ -971,6 +984,8 @@ Issues check_global_stability(SupportGridFilter supports_presence_grid,
for (size_t island_idx = 0; island_idx < islands_graph[layer_idx].islands.size(); ++island_idx) {
const Island &island = islands_graph[layer_idx].islands[island_idx];
ObjectPart &part = active_object_parts.access(prev_island_to_object_part_mapping[island_idx]);
IslandConnection &weakest_conn = prev_island_weakest_connection[island_idx];
#ifdef DETAILED_DEBUG_LOGS
weakest_conn.print_info("weakest connection info: ");