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#623 fix polyholes (less faces & works on first layer)

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This commit is contained in:
supermerill 2020-11-04 20:08:49 +01:00
parent 2adea5b08d
commit 62d64b4f61
1 changed files with 9 additions and 17 deletions
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26
src/libslic3r/PrintObject.cpp
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@ -152,16 +152,16 @@ void PrintObject::slice()
}
Polygon create_polyhole(const Point center, const coord_t diameter, const coord_t nozzle_diameter)
Polygon create_polyhole(const Point center, const coord_t radius, const coord_t nozzle_diameter)
{
// n = max(round(2 * d), 3); // for 0.4mm nozzle
size_t nb_polygons = (int)std::max(3, (int)std::round(2.0 * unscaled(diameter) * 0.4 / unscaled(nozzle_diameter)));
// cylinder(h = h, r = (d / 2) / cos (180 / n), $fn = n);
size_t nb_polygons = (int)std::max(3, (int)std::round(4.0 * unscaled(radius) * 0.4 / unscaled(nozzle_diameter)));
// cylinder(h = h, r = d / cos (180 / n), $fn = n);
Points pts;
const float rayon = (diameter / 1) / std::cos(PI / nb_polygons);
const float new_radius = radius / std::cos(PI / nb_polygons);
for (int i = 0; i < nb_polygons; ++i) {
float angle = (PI * 2 * i) / nb_polygons;
pts.emplace_back(center.x() + rayon * cos(angle), center.y() + rayon * sin(angle));
pts.emplace_back(center.x() + new_radius * cos(angle), center.y() + new_radius * sin(angle));
}
return Polygon{ pts };
}
@ -194,12 +194,10 @@ void PrintObject::_transform_hole_to_polyholes()
Point center{ center_x / hole.points.size(), center_y / hole.points.size() };
double diameter_min = std::numeric_limits<float>::max(), diameter_max = 0;
for (int i = 0; i < hole.points.size(); ++i) {
double dist = hole.points[i].distance_to_square(center);
double dist = hole.points[i].distance_to(center);
diameter_min = std::min(diameter_min, dist);
diameter_max = std::max(diameter_max, dist);
}
diameter_min = std::sqrt(diameter_min);
diameter_max = std::sqrt(diameter_max);
if (diameter_max - diameter_min < SCALED_EPSILON) {
layerid2center[layer_idx].emplace_back(
std::tuple<Point, float, int>{center, diameter_max, layer->m_regions[region_idx]->region()->config().perimeter_extruder.value}, &hole);
@ -241,7 +239,8 @@ void PrintObject::_transform_hole_to_polyholes()
}
}
}
if (holes.size() >= min_nb_layers) {
//check if strait hole or first layer hole (cause of first layer compensation)
if (holes.size() >= min_nb_layers || (holes.size() == 1 && holes[0].second == 0)) {
id2layerz2hole.emplace(std::move(id), std::move(holes));
}
}
@ -2467,7 +2466,6 @@ end:
tbb::parallel_for(
tbb::blocked_range<size_t>(0, m_layers.size()),
[this, upscaled, clipped](const tbb::blocked_range<size_t>& range) {
ExPolygons expolygons_first_layer;
for (size_t layer_id = range.begin(); layer_id < range.end(); ++ layer_id) {
m_print->throw_if_canceled();
Layer *layer = m_layers[layer_id];
@ -2513,8 +2511,6 @@ end:
// Apply all three main XY compensation.
if (hole_delta > 0 || inner_delta > 0 || outter_delta > 0) {
expolygons = _shrink_contour_holes(std::max(0.f, outter_delta), std::max(0.f, inner_delta), std::max(0.f, hole_delta), expolygons);
if (layer_id == 0 && first_layer_compensation != 0)
expolygons_first_layer = expolygons;
}
// Apply the elephant foot compensation.
if (layer_id == 0 && first_layer_compensation != 0.f) {
@ -2524,15 +2520,11 @@ end:
// Apply all three main negative XY compensation.
if (hole_delta < 0 || inner_delta < 0 || outter_delta < 0) {
expolygons = _shrink_contour_holes(std::min(0.f, outter_delta), std::min(0.f, inner_delta), std::min(0.f, hole_delta), expolygons);
if (layer_id == 0 && first_layer_compensation != 0)
expolygons_first_layer = _shrink_contour_holes(std::min(0.f, outter_delta), std::min(0.f, inner_delta), std::min(0.f, hole_delta), expolygons_first_layer);
}
if (layer->regions().front()->region()->config().curve_smoothing_precision > 0.f) {
//smoothing
expolygons = _smooth_curves(expolygons, layer->regions().front()->region()->config());
if (layer_id == 0 && first_layer_compensation != 0)
expolygons_first_layer = _smooth_curves(expolygons_first_layer, layer->regions().front()->region()->config());
}
layerm->m_slices.set(std::move(expolygons), stPosInternal | stDensSparse);
} else {
@ -2576,7 +2568,7 @@ end:
ExPolygons trimming;
static const float eps = float(scale_(m_config.slice_closing_radius.value) * 1.5);
if (layer_id == 0 && first_layer_compensation < 0.f) {
expolygons_first_layer = offset_ex(layer->merged(eps), - eps);
ExPolygons expolygons_first_layer = offset_ex(layer->merged(eps), - eps);
trimming = Slic3r::elephant_foot_compensation(expolygons_first_layer,
layer->regions().front()->flow(frExternalPerimeter), unscale<double>(-first_layer_compensation));
}