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ENH: Add rotation support for 3D Honeycomb, improve stability 

jira: 6701
Change-Id: I0552f7a7f59d1476f081044411557c96036a2c70
(cherry picked from commit 646fa84d42b926fe9e127a60da9c395baf39fac1)
This commit is contained in:
jianjia.ma 2024-04-03 16:46:17 +08:00 committed by Lane.Wei
parent 0142e0c358
commit 712b724d2a
1 changed files with 22 additions and 9 deletions
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31
src/libslic3r/Fill/Fill3DHoneycomb.cpp
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@ -186,15 +186,18 @@ static Polylines makeGrid(coordf_t z, coordf_t gridSize, coordf_t boundWidth, co
// dont_adjust [avoid filling space evenly]
// monotonic [fill strictly left to right]
// complete [complete each loop]
void Fill3DHoneycomb::_fill_surface_single(
const FillParams &params,
const FillParams &params,
unsigned int thickness_layers,
const std::pair<float, Point> &direction,
const std::pair<float, Point> &direction,
ExPolygon expolygon,
Polylines &polylines_out)
{
// no rotation is supported for this infill pattern
// BBL: add support for rotation
auto infill_angle = float(this->angle);
if (std::abs(infill_angle) >= EPSILON) expolygon.rotate(-infill_angle);
BoundingBox bb = expolygon.contour.bounding_box();
// Note: with equally-scaled X/Y/Z, the pattern will create a vertically-stretched
@ -216,7 +219,7 @@ void Fill3DHoneycomb::_fill_surface_single(
// Z scale is adjusted to make the layer patterns consistent / symmetric
// This means that the resultant infill won't be an ideal truncated octahedron,
// but it should look better than the equivalent quantised version
coordf_t layerHeight = scale_(thickness_layers);
// ceiling to an integer value of layers per Z
// (with a little nudge in case it's close to perfect)
@ -248,7 +251,7 @@ void Fill3DHoneycomb::_fill_surface_single(
// (a module is 2*$gridSize since one $gridSize half-module is
// growing while the other $gridSize half-module is shrinking)
bb.merge(align_to_grid(bb.min, Point(gridSize*4, gridSize*4)));
// generate pattern
Polylines polylines =
makeGrid(
@ -257,7 +260,7 @@ void Fill3DHoneycomb::_fill_surface_single(
bb.size()(0),
bb.size()(1),
!params.dont_adjust);
// move pattern in place
for (Polyline &pl : polylines){
pl.translate(bb.min);
@ -266,11 +269,21 @@ void Fill3DHoneycomb::_fill_surface_single(
// clip pattern to boundaries, chain the clipped polylines
polylines = intersection_pl(polylines, to_polygons(expolygon));
// connect lines if needed
if (params.dont_connect() || polylines.size() <= 1)
// copy from fliplines
if (!polylines.empty()) {
int infill_start_idx = polylines_out.size(); // only rotate what belongs to us.
// connect lines
if (params.dont_connect() || polylines.size() <= 1)
append(polylines_out, chain_polylines(std::move(polylines)));
else
else
this->connect_infill(std::move(polylines), expolygon, polylines_out, this->spacing, params);
// rotate back
if (std::abs(infill_angle) >= EPSILON) {
for (auto it = polylines_out.begin() + infill_start_idx; it != polylines_out.end(); ++it)
it->rotate(infill_angle);
}
}
}
} // namespace Slic3r