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Elephant foot compensation improvements.

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Fix of the negative XY compensation on multi-material (or multi-region)
prints, where the negative XY compensation created gaps between parts.
This commit is contained in:
bubnikv 2019-03-05 11:54:04 +01:00
parent c56004f946
commit 5e582efc5c
5 changed files with 139 additions and 27 deletions
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10
src/libslic3r/Layer.hpp
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@ -63,7 +63,12 @@ public:
void prepare_fill_surfaces();
void make_perimeters(const SurfaceCollection &slices, SurfaceCollection* fill_surfaces);
void process_external_surfaces(const Layer* lower_layer);
double infill_area_threshold() const;
double infill_area_threshold() const;
// Trim surfaces by trimming polygons. Used by the elephant foot compensation at the 1st layer.
void trim_surfaces(const Polygons &trimming_polygons);
// Single elephant foot compensation step, used by the elephant foor compensation at the 1st layer.
// Trim surfaces by trimming polygons (shrunk by an elephant foot compensation step), but don't shrink narrow parts so much that no perimeter would fit.
void elephant_foot_compensation_step(const float elephant_foot_compensation_perimeter_step, const Polygons &trimming_polygons);
void export_region_slices_to_svg(const char *path) const;
void export_region_fill_surfaces_to_svg(const char *path) const;
@ -117,7 +122,10 @@ public:
// Test whether whether there are any slices assigned to this layer.
bool empty() const;
void make_slices();
// Merge typed slices into untyped slices. This method is used to revert the effects of detect_surfaces_type() called for posPrepareInfill.
void merge_slices();
// Slices merged into islands, to be used by the elephant foot compensation to trim the individual surfaces with the shrunk merged slices.
ExPolygons merged(float offset) const;
template <class T> bool any_internal_region_slice_contains(const T &item) const {
for (const LayerRegion *layerm : m_regions) if (layerm->slices.any_internal_contains(item)) return true;
return false;