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better sparse rectilinear coverage (began at spacing/2 instead of spacing)

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This commit is contained in:
supermerill 2019-07-08 17:25:49 +02:00
parent bc4f73a7e8
commit aa5d17eff4
2 changed files with 14 additions and 12 deletions
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2
src/libslic3r/Fill/FillRectilinear2.cpp
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@ -767,7 +767,7 @@ std::vector<SegmentedIntersectionLine> FillRectilinear2::_vert_lines_for_polygon
{
// n_vlines = ceil(bbox_width / line_spacing)
size_t n_vlines = (bounding_box.max(0) - bounding_box.min(0) + line_spacing - 1) / line_spacing;
coord_t x0 = bounding_box.min(0);
coord_t x0 = bounding_box.min(0) + (bounding_box.max(0) - bounding_box.min(0) + line_spacing - n_vlines*line_spacing) / 2;
if (params.full_infill())
x0 += (line_spacing + SCALED_EPSILON) / 2;

24
src/test/libslic3r/test_fill.cpp
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@ -1,5 +1,5 @@
#define CATCH_CONFIG_DISABLE
//#define CATCH_CONFIG_DISABLE
#include <catch.hpp>
#include "../test_data.hpp"
@ -91,16 +91,18 @@ TEST_CASE("Fill: Pattern Path Length") {
e.contour = Slic3r::Polygon(test_square);
e.holes = Slic3r::Polygons(Slic3r::Polygon(test_hole));
Polylines paths {test(e, *filler, params_local)};
std::cout << "paths.size="<<paths.size() << "\n";
{
std::stringstream stri;
stri << "squarewithhole.svg";
SVG svg(stri.str());
svg.draw(paths);
svg.draw(e);
svg.Close();
}
REQUIRE((paths.size() >= 2 && paths.size() <= 3));
//std::cout << "paths.size="<<paths.size() << "\n";
//{
// std::stringstream stri;
// stri << "squarewithhole.svg";
// SVG svg(stri.str());
// svg.draw(paths);
// svg.draw(e);
// svg.Close();
//}
//path CAN loop around the hole
REQUIRE(paths.size() >= 1);
REQUIRE(paths.size() <= 2);
// paths don't cross hole
REQUIRE(diff_pl(paths, offset(e, (float)(+SCALED_EPSILON * 10))).size() == 0);
}