PrusaSlicer-NonPlainar/tests/libslic3r/test_voronoi.cpp
Vojtech Bubnik b101a8e266 Fixes of the offset curves from Voronoi diagram.
The offset curve extractor is already quite usable,
though singular cases are still not covered yet
when the offset curve intersects or nearly intersects
a Voronoi vertex.

Removal of the PRINTF_ZU "%zu" Visual Studio printf compatibility macro.
Fixes of a contours self intersection test for collinear segments.
SVG exporter now exports white background, so that the GNOME Eye viewer is usable.
2020-06-16 13:15:48 +02:00

1396 lines
64 KiB
C++

#include <catch2/catch.hpp>
#include <test_utils.hpp>
#include <libslic3r/Polygon.hpp>
#include <libslic3r/Polyline.hpp>
#include <libslic3r/EdgeGrid.hpp>
#include <libslic3r/Geometry.hpp>
#include <libslic3r/VoronoiOffset.hpp>
// #define VORONOI_DEBUG_OUT
#ifdef VORONOI_DEBUG_OUT
#include <libslic3r/VoronoiVisualUtils.hpp>
#endif
using boost::polygon::voronoi_builder;
using boost::polygon::voronoi_diagram;
using namespace Slic3r;
using VD = Geometry::VoronoiDiagram;
// https://svn.boost.org/trac10/ticket/12067
// This bug seems to be confirmed.
// Vojtech supposes that there may be no Voronoi edges produced for
// the 1st and last sweep line positions.
TEST_CASE("Voronoi missing edges - points 12067", "[Voronoi]")
{
Points pts {
{ -10, -20 },
{ 10, -20 },
{ 5, 0 },
{ 10, 20 },
{ -10, 20 },
{ -5, 0 }
};
// Construction of the Voronoi Diagram.
VD vd;
construct_voronoi(pts.begin(), pts.end(), &vd);
#ifdef VORONOI_DEBUG_OUT
dump_voronoi_to_svg(debug_out_path("voronoi-pts.svg").c_str(),
vd, pts, Lines());
#endif
// REQUIRE(closest_point.z() == Approx(1.));
}
// https://svn.boost.org/trac10/ticket/12707
// This issue is confirmed, there are no self intersections in the polygon.
// A minimal test case is created at the end of this test,
// a new issue opened with the minimal test case:
// https://github.com/boostorg/polygon/issues/43
TEST_CASE("Voronoi missing edges - Alessandro gapfill 12707", "[Voronoi]")
{
Lines lines0 {
{ { 42127548, 699996}, { 42127548, 10135750 } },
{ { 42127548, 10135750}, { 50487352, 10135750 } },
{ { 50487352, 10135750}, { 50487352, 699995 } },
{ { 50487352, 699995}, { 51187348, 0 } },
{ { 51187348, 0}, { 64325952, 0 } },
{ { 64325952, 0}, { 64325952, 699996 } },
{ { 64325952, 699996}, { 51187348, 699996 } },
{ { 51187348, 699996}, { 51187348, 10835701 } },
{ { 51187348, 10835701}, { 41427552, 10835701 } },
{ { 41427552, 10835701}, { 41427552, 699996 } },
{ { 41427552, 699996}, { 28664848, 699996 } },
{ { 28664848, 699996}, { 28664848, 10835701 } },
{ { 28664848, 10835701}, { 19280052, 10835701 } },
{ { 19280052, 10835701}, { 27964852, 699996 } },
{ { 27964852, 699996}, { 28664848, 0 } },
{ { 28664848, 0}, { 41427551, 0 } },
{ { 41427551, 0}, { 42127548, 699996 } }
};
Lines lines1 {
{ { 42127548, 699996}, { 42127548, 10135750 } },
{ { 42127548, 10135750}, { 50487352, 10135750 } },
{ { 50487352, 10135750}, { 50487352, 699995 } },
{ { 50487352, 699995}, { 51187348, 0 } },
{ { 51187348, 0}, { 51187348, 10835701 } },
{ { 51187348, 10835701}, { 41427552, 10835701 } },
{ { 41427552, 10835701}, { 41427552, 699996 } },
{ { 41427552, 699996}, { 28664848, 699996 } },
{ { 28664848, 699996}, { 28664848, 10835701 } },
{ { 28664848, 10835701}, { 19280052, 10835701 } },
{ { 19280052, 10835701}, { 27964852, 699996 } },
{ { 27964852, 699996}, { 28664848, 0 } },
{ { 28664848, 0}, { 41427551, 0 } },
{ { 41427551, 0}, { 42127548, 699996 } }
};
Lines lines2 {
{ { 42127548, 699996}, { 42127548, 10135750 } },
{ { 42127548, 10135750}, { 50487352, 10135750 } },
{ { 50487352, 10135750}, { 50487352, 699995 } },
{ { 50487352, 699995}, { 51187348, 0 } },
{ { 51187348, 0}, { 51187348, 10835701 } },
{ { 51187348, 10835701}, { 41427552, 10835701 } },
{ { 41427552, 10835701}, { 41427552, 699996 } },
{ { 41427552, 699996}, { 28664848, 699996 } },
{ { 28664848, 699996}, { 28664848, 10835701 } },
{ { 28664848, 10835701}, { 19280052, 10835701 } },
{ { 19280052, 10835701}, { 28664848, 0 } },
{ { 28664848, 0}, { 41427551, 0 } },
{ { 41427551, 0}, { 42127548, 699996 } }
};
Lines lines3 {
{ { 42127548, 699996}, { 42127548, 10135750 } },
{ { 42127548, 10135750}, { 50487352, 10135750 } },
{ { 50487352, 10135750}, { 50487352, 699995 } },
{ { 50487352, 699995}, { 51187348, 0 } },
{ { 51187348, 0}, { 51187348, 10835701 } },
{ { 51187348, 10835701}, { 41427552, 10835701 } },
{ { 41427552, 10835701}, { 41427552, 699996 } },
{ { 41427552, 699996}, { 41427551, 0 } },
{ { 41427551, 0}, { 42127548, 699996 } }
};
Lines lines4 {
{ { 42127548, 699996}, { 42127548, 10135750 } },
{ { 42127548, 10135750}, { 50487352, 10135750 } },
{ { 50487352, 10135750}, { 50487352, 699995 } },
{ { 50487352, 699995}, { 51187348, 0 } },
{ { 51187348, 0}, { 51187348, 10835701 } },
{ { 51187348, 10835701}, { 41427552, 10835701 } },
{ { 41427552, 10835701}, { 41427551, 0 } },
{ { 41427551, 0}, { 42127548, 699996 } }
};
Lines lines = to_lines(Polygon {
{ 0, 10000000},
{ 700000, 1}, // it has to be 1, higher number, zero or -1 work.
{ 700000, 9000000},
{ 9100000, 9000000},
{ 9100000, 0},
{10000000, 10000000}
});
Polygon poly;
std::mt19937 gen;
std::uniform_int_distribution<size_t> dist(-100, 100);
for (size_t i = 0; i < lines.size(); ++ i) {
Line &l1 = lines[i];
Line &l2 = lines[(i + 1) % lines.size()];
REQUIRE(l1.b.x() == l2.a.x());
REQUIRE(l1.b.y() == l2.a.y());
#if 0
// Wiggle the points a bit to find out whether this fixes the voronoi diagram for this particular polygon.
l1.b.x() = (l2.a.x() += dist(gen));
l1.b.y() = (l2.a.y() += dist(gen));
#endif
poly.points.emplace_back(l1.a);
}
REQUIRE(intersecting_edges({ poly }).empty());
VD vd;
construct_voronoi(lines.begin(), lines.end(), &vd);
#ifdef VORONOI_DEBUG_OUT
dump_voronoi_to_svg(debug_out_path("voronoi-lines.svg").c_str(),
vd, Points(), lines);
#endif
}
// https://svn.boost.org/trac10/ticket/12903
// division by zero reported, but this issue is most likely a non-issue, as it produces an infinity for the interval of validity
// of the floating point calculation, therefore forcing a recalculation with extended accuracy.
TEST_CASE("Voronoi division by zero 12903", "[Voronoi]")
{
Points pts { { 1, 1 }, { 3, 1 }, { 1, 3 }, { 3, 3 },
{ -1, 1 }, { 1, -1 }, { 5, 1 }, { 3, -1 },
{ -1, 3 }, { 1, 5 }, { 5, 3 }, { 3, 5 } };
{
auto pts2 { pts };
std::sort(pts2.begin(), pts2.end(), [](auto &l, auto &r) { return (l.x() == r.x()) ? l.y() < r.y() : l.x() < r.x(); });
// No point removed -> no duplicate.
REQUIRE(std::unique(pts2.begin(), pts2.end()) == pts2.end());
}
VD vd;
construct_voronoi(pts.begin(), pts.end(), &vd);
#ifdef VORONOI_DEBUG_OUT
// Scale the voronoi vertices and input points, so that the dump_voronoi_to_svg will display them correctly.
for (auto &pt : vd.vertices()) {
const_cast<double&>(pt.x()) = scale_(pt.x());
const_cast<double&>(pt.y()) = scale_(pt.y());
}
for (auto &pt : pts)
pt = Point::new_scale(pt.x(), pt.y());
dump_voronoi_to_svg(debug_out_path("voronoi-div-by-zero.svg").c_str(), vd, pts, Lines());
#endif
}
// https://svn.boost.org/trac10/ticket/12139
// Funny sample from a dental industry?
// Vojtech confirms this test fails and rightly so, because the input data contain self intersections.
// This test is suppressed.
TEST_CASE("Voronoi NaN coordinates 12139", "[Voronoi][!hide][!mayfail]")
{
Lines lines = {
{ { 260500,1564400 }, { 261040,1562960 } },
{ { 261040,1562960 }, { 260840,1561780 } },
{ { 260840,1561780 }, { 262620,1561480 } },
{ { 262620,1561480 }, { 263160,1561220 } },
{ { 263160,1561220 }, { 264100,1563259 } },
{ { 264100,1563259 }, { 262380,1566980 } },
{ { 262380,1566980 }, { 260500,1564400 } },
{ { 137520,1851640 }, { 132160,1851100 } },
{ { 132160,1851100 }, { 126460,1848779 } },
{ { 126460,1848779 }, { 123960,1847320 } },
{ { 123960,1847320 }, { 120960,1844559 } },
{ { 120960,1844559 }, { 119640,1843040 } },
{ { 119640,1843040 }, { 118320,1840900 } },
{ { 118320,1840900 }, { 117920,1838120 } },
{ { 117920,1838120 }, { 118219,1833340 } },
{ { 118219,1833340 }, { 116180,1835000 } },
{ { 116180,1835000 }, { 115999,1834820 } },
{ { 115999,1834820 }, { 114240,1836340 } },
{ { 114240,1836340 }, { 112719,1837260 } },
{ { 112719,1837260 }, { 109460,1838239 } },
{ { 109460,1838239 }, { 103639,1837480 } },
{ { 103639,1837480 }, { 99819,1835460 } },
{ { 99819,1835460 }, { 96320,1834260 } },
{ { 96320,1834260 }, { 95339,1834260 } },
{ { 95339,1834260 }, { 93660,1833720 } },
{ { 93660,1833720 }, { 90719,1833300 } },
{ { 90719,1833300 }, { 87860,1831660 } },
{ { 87860,1831660 }, { 84580,1830499 } },
{ { 84580,1830499 }, { 79780,1827419 } },
{ { 79780,1827419 }, { 76020,1824280 } },
{ { 76020,1824280 }, { 73680,1821180 } },
{ { 73680,1821180 }, { 72560,1818960 } },
{ { 72560,1818960 }, { 71699,1817719 } },
{ { 71699,1817719 }, { 70280,1814260 } },
{ { 70280,1814260 }, { 69460,1811060 } },
{ { 69460,1811060 }, { 69659,1807320 } },
{ { 69659,1807320 }, { 69640,1803300 } },
{ { 69640,1803300 }, { 69360,1799780 } },
{ { 69360,1799780 }, { 69320,1796720 } },
{ { 69320,1796720 }, { 69640,1793980 } },
{ { 69640,1793980 }, { 70160,1791780 } },
{ { 70160,1791780 }, { 72460,1784879 } },
{ { 72460,1784879 }, { 74420,1780780 } },
{ { 74420,1780780 }, { 76500,1772899 } },
{ { 76500,1772899 }, { 76760,1769359 } },
{ { 76760,1769359 }, { 76480,1766259 } },
{ { 76480,1766259 }, { 76839,1760360 } },
{ { 76839,1760360 }, { 77539,1756680 } },
{ { 77539,1756680 }, { 80540,1748140 } },
{ { 80540,1748140 }, { 84200,1742619 } },
{ { 84200,1742619 }, { 90900,1735220 } },
{ { 90900,1735220 }, { 94159,1732679 } },
{ { 94159,1732679 }, { 101259,1729559 } },
{ { 101259,1729559 }, { 107299,1727939 } },
{ { 107299,1727939 }, { 110979,1727919 } },
{ { 110979,1727919 }, { 113499,1727240 } },
{ { 113499,1727240 }, { 113619,1727359 } },
{ { 113619,1727359 }, { 114280,1727280 } },
{ { 114280,1727280 }, { 131440,1732560 } },
{ { 131440,1732560 }, { 118140,1727119 } },
{ { 118140,1727119 }, { 117120,1723759 } },
{ { 117120,1723759 }, { 113840,1720660 } },
{ { 113840,1720660 }, { 111399,1716760 } },
{ { 111399,1716760 }, { 109700,1712979 } },
{ { 109700,1712979 }, { 108879,1708400 } },
{ { 108879,1708400 }, { 108060,1696360 } },
{ { 108060,1696360 }, { 110040,1687760 } },
{ { 110040,1687760 }, { 112140,1682480 } },
{ { 112140,1682480 }, { 112540,1681780 } },
{ { 112540,1681780 }, { 115260,1678320 } },
{ { 115260,1678320 }, { 118720,1675320 } },
{ { 118720,1675320 }, { 126100,1670980 } },
{ { 126100,1670980 }, { 132400,1668080 } },
{ { 132400,1668080 }, { 136700,1667440 } },
{ { 136700,1667440 }, { 142440,1667159 } },
{ { 142440,1667159 }, { 143340,1666720 } },
{ { 143340,1666720 }, { 138679,1661319 } },
{ { 138679,1661319 }, { 137240,1657480 } },
{ { 137240,1657480 }, { 136760,1650739 } },
{ { 136760,1650739 }, { 136780,1647339 } },
{ { 136780,1647339 }, { 135940,1644280 } },
{ { 135940,1644280 }, { 136000,1640820 } },
{ { 136000,1640820 }, { 135480,1638020 } },
{ { 135480,1638020 }, { 137060,1634220 } },
{ { 137060,1634220 }, { 136320,1631340 } },
{ { 136320,1631340 }, { 134620,1629700 } },
{ { 134620,1629700 }, { 132460,1628199 } },
{ { 132460,1628199 }, { 132299,1627860 } },
{ { 132299,1627860 }, { 138360,1618020 } },
{ { 138360,1618020 }, { 142440,1611859 } },
{ { 142440,1611859 }, { 143180,1611299 } },
{ { 143180,1611299 }, { 144000,1611259 } },
{ { 144000,1611259 }, { 145960,1612540 } },
{ { 145960,1612540 }, { 146720,1613700 } },
{ { 146720,1613700 }, { 147700,1613539 } },
{ { 147700,1613539 }, { 148520,1614039 } },
{ { 148520,1614039 }, { 149840,1613740 } },
{ { 149840,1613740 }, { 150620,1614079 } },
{ { 150620,1614079 }, { 154760,1612740 } },
{ { 154760,1612740 }, { 159000,1608420 } },
{ { 159000,1608420 }, { 161120,1606780 } },
{ { 161120,1606780 }, { 164060,1605139 } },
{ { 164060,1605139 }, { 168079,1603620 } },
{ { 168079,1603620 }, { 170240,1603400 } },
{ { 170240,1603400 }, { 172400,1603499 } },
{ { 172400,1603499 }, { 194440,1613740 } },
{ { 194440,1613740 }, { 195880,1616460 } },
{ { 195880,1616460 }, { 197060,1618140 } },
{ { 197060,1618140 }, { 198039,1617860 } },
{ { 198039,1617860 }, { 198739,1618900 } },
{ { 198739,1618900 }, { 200259,1619200 } },
{ { 200259,1619200 }, { 201940,1618920 } },
{ { 201940,1618920 }, { 201700,1617139 } },
{ { 201700,1617139 }, { 203860,1618179 } },
{ { 203860,1618179 }, { 203500,1617540 } },
{ { 203500,1617540 }, { 205000,1616579 } },
{ { 205000,1616579 }, { 206780,1615020 } },
{ { 206780,1615020 }, { 210159,1614059 } },
{ { 210159,1614059 }, { 217080,1611080 } },
{ { 217080,1611080 }, { 219200,1611579 } },
{ { 219200,1611579 }, { 223219,1610980 } },
{ { 223219,1610980 }, { 224580,1610540 } },
{ { 224580,1610540 }, { 227460,1611440 } },
{ { 227460,1611440 }, { 229359,1611859 } },
{ { 229359,1611859 }, { 230620,1612580 } },
{ { 230620,1612580 }, { 232340,1614460 } },
{ { 232340,1614460 }, { 232419,1617040 } },
{ { 232419,1617040 }, { 231740,1619480 } },
{ { 231740,1619480 }, { 231880,1624899 } },
{ { 231880,1624899 }, { 231540,1625820 } },
{ { 231540,1625820 }, { 231700,1627079 } },
{ { 231700,1627079 }, { 231320,1628239 } },
{ { 231320,1628239 }, { 231420,1636080 } },
{ { 231420,1636080 }, { 231099,1637200 } },
{ { 231099,1637200 }, { 228660,1643280 } },
{ { 228660,1643280 }, { 227699,1644960 } },
{ { 227699,1644960 }, { 226080,1651140 } },
{ { 226080,1651140 }, { 225259,1653420 } },
{ { 225259,1653420 }, { 225159,1655399 } },
{ { 225159,1655399 }, { 223760,1659260 } },
{ { 223760,1659260 }, { 219860,1666360 } },
{ { 219860,1666360 }, { 219180,1667220 } },
{ { 219180,1667220 }, { 212580,1673680 } },
{ { 212580,1673680 }, { 207880,1676460 } },
{ { 207880,1676460 }, { 205560,1677560 } },
{ { 205560,1677560 }, { 199700,1678920 } },
{ { 199700,1678920 }, { 195280,1679420 } },
{ { 195280,1679420 }, { 193939,1679879 } },
{ { 193939,1679879 }, { 188780,1679440 } },
{ { 188780,1679440 }, { 188100,1679639 } },
{ { 188100,1679639 }, { 186680,1679339 } },
{ { 186680,1679339 }, { 184760,1679619 } },
{ { 184760,1679619 }, { 183520,1681440 } },
{ { 183520,1681440 }, { 183860,1682200 } },
{ { 183860,1682200 }, { 186620,1686120 } },
{ { 186620,1686120 }, { 190380,1688380 } },
{ { 190380,1688380 }, { 192780,1690739 } },
{ { 192780,1690739 }, { 195860,1694839 } },
{ { 195860,1694839 }, { 196620,1696539 } },
{ { 196620,1696539 }, { 197540,1701819 } },
{ { 197540,1701819 }, { 198939,1705699 } },
{ { 198939,1705699 }, { 198979,1711819 } },
{ { 198979,1711819 }, { 198240,1716900 } },
{ { 198240,1716900 }, { 197440,1720139 } },
{ { 197440,1720139 }, { 195340,1724639 } },
{ { 195340,1724639 }, { 194040,1726140 } },
{ { 194040,1726140 }, { 192559,1728239 } },
{ { 192559,1728239 }, { 187780,1732339 } },
{ { 187780,1732339 }, { 182519,1735520 } },
{ { 182519,1735520 }, { 181239,1736140 } },
{ { 181239,1736140 }, { 177340,1737619 } },
{ { 177340,1737619 }, { 175439,1738140 } },
{ { 175439,1738140 }, { 171380,1738880 } },
{ { 171380,1738880 }, { 167860,1739059 } },
{ { 167860,1739059 }, { 166040,1738920 } },
{ { 166040,1738920 }, { 163680,1738539 } },
{ { 163680,1738539 }, { 157660,1736859 } },
{ { 157660,1736859 }, { 154900,1735460 } },
{ { 154900,1735460 }, { 151420,1735159 } },
{ { 151420,1735159 }, { 142100,1736160 } },
{ { 142100,1736160 }, { 140880,1735920 } },
{ { 140880,1735920 }, { 142820,1736859 } },
{ { 142820,1736859 }, { 144080,1737240 } },
{ { 144080,1737240 }, { 144280,1737460 } },
{ { 144280,1737460 }, { 144239,1738120 } },
{ { 144239,1738120 }, { 144980,1739420 } },
{ { 144980,1739420 }, { 146340,1741039 } },
{ { 146340,1741039 }, { 147160,1741720 } },
{ { 147160,1741720 }, { 154260,1745800 } },
{ { 154260,1745800 }, { 156560,1746879 } },
{ { 156560,1746879 }, { 165180,1752679 } },
{ { 165180,1752679 }, { 168240,1755860 } },
{ { 168240,1755860 }, { 170940,1759260 } },
{ { 170940,1759260 }, { 173440,1762079 } },
{ { 173440,1762079 }, { 174540,1764079 } },
{ { 174540,1764079 }, { 176479,1766640 } },
{ { 176479,1766640 }, { 178900,1768960 } },
{ { 178900,1768960 }, { 180819,1772780 } },
{ { 180819,1772780 }, { 181479,1776859 } },
{ { 181479,1776859 }, { 181660,1788499 } },
{ { 181660,1788499 }, { 181460,1791740 } },
{ { 181460,1791740 }, { 181160,1792840 } },
{ { 181160,1792840 }, { 179580,1797180 } },
{ { 179580,1797180 }, { 174620,1808960 } },
{ { 174620,1808960 }, { 174100,1809839 } },
{ { 174100,1809839 }, { 171660,1812419 } },
{ { 171660,1812419 }, { 169639,1813840 } },
{ { 169639,1813840 }, { 168880,1814720 } },
{ { 168880,1814720 }, { 168960,1815980 } },
{ { 168960,1815980 }, { 169979,1819160 } },
{ { 169979,1819160 }, { 170080,1820159 } },
{ { 170080,1820159 }, { 168280,1830540 } },
{ { 168280,1830540 }, { 167580,1832200 } },
{ { 167580,1832200 }, { 165679,1835720 } },
{ { 165679,1835720 }, { 164720,1836819 } },
{ { 164720,1836819 }, { 161840,1841740 } },
{ { 161840,1841740 }, { 159880,1843519 } },
{ { 159880,1843519 }, { 158959,1844120 } },
{ { 158959,1844120 }, { 154960,1847500 } },
{ { 154960,1847500 }, { 152140,1848580 } },
{ { 152140,1848580 }, { 150440,1849520 } },
{ { 150440,1849520 }, { 144940,1850980 } },
{ { 144940,1850980 }, { 138340,1851700 } },
{ { 138340,1851700 }, { 137520,1851640 } },
{ { 606940,1873860 }, { 602860,1872460 } },
{ { 602860,1872460 }, { 600680,1871539 } },
{ { 600680,1871539 }, { 599300,1870640 } },
{ { 599300,1870640 }, { 598120,1869579 } },
{ { 598120,1869579 }, { 594680,1867180 } },
{ { 594680,1867180 }, { 589680,1861460 } },
{ { 589680,1861460 }, { 586300,1855020 } },
{ { 586300,1855020 }, { 584700,1848060 } },
{ { 584700,1848060 }, { 585199,1843499 } },
{ { 585199,1843499 }, { 584000,1842079 } },
{ { 584000,1842079 }, { 582900,1841480 } },
{ { 582900,1841480 }, { 581020,1839899 } },
{ { 581020,1839899 }, { 579440,1838040 } },
{ { 579440,1838040 }, { 577840,1834299 } },
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{ { 519020,1515260 }, { 520700,1516480 } },
{ { 520700,1516480 }, { 524960,1521480 } },
{ { 524960,1521480 }, { 526820,1524820 } },
{ { 526820,1524820 }, { 528280,1527820 } },
{ { 528280,1527820 }, { 529120,1533120 } },
{ { 529120,1533120 }, { 528820,1537139 } },
{ { 528820,1537139 }, { 527020,1543920 } },
{ { 527020,1543920 }, { 526959,1546780 } },
{ { 526959,1546780 }, { 526420,1548060 } },
{ { 526420,1548060 }, { 527020,1547919 } },
{ { 527020,1547919 }, { 527620,1548160 } },
{ { 527620,1548160 }, { 528980,1548020 } },
{ { 528980,1548020 }, { 535180,1544980 } },
{ { 535180,1544980 }, { 540860,1542979 } },
{ { 540860,1542979 }, { 546480,1542720 } },
{ { 546480,1542720 }, { 547420,1542860 } },
{ { 547420,1542860 }, { 551800,1544140 } },
{ { 551800,1544140 }, { 558740,1547939 } },
{ { 558740,1547939 }, { 569920,1556259 } },
{ { 569920,1556259 }, { 573660,1560220 } },
{ { 573660,1560220 }, { 573040,1559500 } },
{ { 573040,1559500 }, { 574740,1559220 } },
{ { 574740,1559220 }, { 588480,1562899 } },
{ { 588480,1562899 }, { 585180,1576019 } },
{ { 585180,1576019 }, { 583440,1577979 } },
{ { 583440,1577979 }, { 584280,1582399 } },
{ { 584280,1582399 }, { 584520,1588960 } },
{ { 584520,1588960 }, { 583420,1601620 } },
{ { 583420,1601620 }, { 582840,1603880 } },
{ { 582840,1603880 }, { 579860,1611400 } },
{ { 579860,1611400 }, { 577980,1614579 } },
{ { 577980,1614579 }, { 577380,1616080 } },
{ { 577380,1616080 }, { 563800,1621579 } },
{ { 563800,1621579 }, { 561320,1622320 } },
{ { 561320,1622320 }, { 565080,1621960 } },
{ { 565080,1621960 }, { 571680,1620780 } },
{ { 571680,1620780 }, { 583260,1628340 } },
{ { 583260,1628340 }, { 583100,1630399 } },
{ { 583100,1630399 }, { 582200,1632160 } },
{ { 582200,1632160 }, { 595380,1627020 } },
{ { 595380,1627020 }, { 597400,1627320 } },
{ { 597400,1627320 }, { 602240,1628459 } },
{ { 602240,1628459 }, { 605660,1630260 } },
{ { 605660,1630260 }, { 610319,1634140 } },
{ { 610319,1634140 }, { 612340,1636319 } },
{ { 612340,1636319 }, { 614820,1638020 } },
{ { 614820,1638020 }, { 616460,1638740 } },
{ { 616460,1638740 }, { 620420,1639500 } },
{ { 620420,1639500 }, { 623000,1639280 } },
{ { 623000,1639280 }, { 624459,1639359 } },
{ { 624459,1639359 }, { 626180,1640159 } },
{ { 626180,1640159 }, { 627279,1640940 } },
{ { 627279,1640940 }, { 629980,1643759 } },
{ { 629980,1643759 }, { 632380,1648000 } },
{ { 632380,1648000 }, { 635020,1654800 } },
{ { 635020,1654800 }, { 636320,1659140 } },
{ { 636320,1659140 }, { 636680,1663620 } },
{ { 636680,1663620 }, { 636180,1665780 } },
{ { 636180,1665780 }, { 630620,1669720 } },
{ { 630620,1669720 }, { 628760,1672979 } },
{ { 628760,1672979 }, { 627540,1676859 } },
{ { 627540,1676859 }, { 627040,1680699 } },
{ { 627040,1680699 }, { 624700,1686500 } },
{ { 624700,1686500 }, { 623260,1688799 } },
{ { 623260,1688799 }, { 619620,1693799 } },
{ { 619620,1693799 }, { 621720,1694859 } },
{ { 621720,1694859 }, { 624940,1694379 } },
{ { 624940,1694379 }, { 627120,1695600 } },
{ { 627120,1695600 }, { 627740,1696120 } },
{ { 627740,1696120 }, { 631120,1697460 } },
{ { 631120,1697460 }, { 633980,1698340 } },
{ { 633980,1698340 }, { 638380,1700460 } },
{ { 638380,1700460 }, { 642660,1703300 } },
{ { 642660,1703300 }, { 643620,1704140 } },
{ { 643620,1704140 }, { 646300,1707000 } },
{ { 646300,1707000 }, { 649060,1710880 } },
{ { 649060,1710880 }, { 651160,1714879 } },
{ { 651160,1714879 }, { 651740,1716559 } },
{ { 651740,1716559 }, { 653139,1722619 } },
{ { 653139,1722619 }, { 653020,1728320 } },
{ { 653020,1728320 }, { 652719,1731420 } },
{ { 652719,1731420 }, { 651619,1736360 } },
{ { 651619,1736360 }, { 649819,1743160 } },
{ { 649819,1743160 }, { 646440,1749059 } },
{ { 646440,1749059 }, { 645219,1750399 } },
{ { 645219,1750399 }, { 643959,1752679 } },
{ { 643959,1752679 }, { 643959,1753740 } },
{ { 643959,1753740 }, { 642140,1754240 } },
{ { 642140,1754240 }, { 643760,1754099 } },
{ { 643760,1754099 }, { 644320,1754280 } },
{ { 644320,1754280 }, { 645000,1754879 } },
{ { 645000,1754879 }, { 646940,1755620 } },
{ { 646940,1755620 }, { 654779,1757820 } },
{ { 654779,1757820 }, { 661100,1761559 } },
{ { 661100,1761559 }, { 664099,1763980 } },
{ { 664099,1763980 }, { 668220,1768480 } },
{ { 668220,1768480 }, { 671920,1773640 } },
{ { 671920,1773640 }, { 674939,1779540 } },
{ { 674939,1779540 }, { 677760,1782440 } },
{ { 677760,1782440 }, { 679080,1785739 } },
{ { 679080,1785739 }, { 678780,1788100 } },
{ { 678780,1788100 }, { 678020,1791500 } },
{ { 678020,1791500 }, { 677120,1793600 } },
{ { 677120,1793600 }, { 676860,1795800 } },
{ { 676860,1795800 }, { 676440,1797320 } },
{ { 676440,1797320 }, { 676459,1798519 } },
{ { 676459,1798519 }, { 675620,1800159 } },
{ { 675620,1800159 }, { 675520,1801019 } },
{ { 675520,1801019 }, { 673360,1804899 } },
{ { 673360,1804899 }, { 672740,1807079 } },
{ { 672740,1807079 }, { 673300,1809260 } },
{ { 673300,1809260 }, { 674539,1811019 } },
{ { 674539,1811019 }, { 675499,1812020 } },
{ { 675499,1812020 }, { 677660,1817240 } },
{ { 677660,1817240 }, { 679659,1824280 } },
{ { 679659,1824280 }, { 680380,1828779 } },
{ { 680380,1828779 }, { 679519,1837999 } },
{ { 679519,1837999 }, { 677940,1844379 } },
{ { 677940,1844379 }, { 676940,1846900 } },
{ { 676940,1846900 }, { 675479,1849379 } },
{ { 675479,1849379 }, { 674000,1851200 } },
{ { 674000,1851200 }, { 671380,1853480 } },
{ { 671380,1853480 }, { 667019,1855240 } },
{ { 667019,1855240 }, { 662540,1856060 } },
{ { 662540,1856060 }, { 660960,1856599 } },
{ { 660960,1856599 }, { 656240,1857020 } },
{ { 656240,1857020 }, { 655600,1856960 } },
{ { 655600,1856960 }, { 652839,1855880 } },
{ { 652839,1855880 }, { 652019,1855840 } },
{ { 652019,1855840 }, { 651459,1855060 } },
{ { 651459,1855060 }, { 652179,1854359 } },
{ { 652179,1854359 }, { 652019,1849919 } },
{ { 652019,1849919 }, { 650620,1846920 } },
{ { 650620,1846920 }, { 647299,1844540 } },
{ { 647299,1844540 }, { 644500,1843819 } },
{ { 644500,1843819 }, { 641860,1844859 } },
{ { 641860,1844859 }, { 641059,1845340 } },
{ { 641059,1845340 }, { 638860,1845820 } },
{ { 638860,1845820 }, { 638000,1845820 } },
{ { 638000,1845820 }, { 636340,1845479 } },
{ { 636340,1845479 }, { 634980,1844800 } },
{ { 634980,1844800 }, { 632660,1842979 } },
{ { 632660,1842979 }, { 631140,1841120 } },
{ { 631140,1841120 }, { 629140,1839520 } },
{ { 629140,1839520 }, { 626640,1839540 } },
{ { 626640,1839540 }, { 624159,1840739 } },
{ { 624159,1840739 }, { 623820,1841380 } },
{ { 623820,1841380 }, { 622440,1842719 } },
{ { 622440,1842719 }, { 622100,1843680 } },
{ { 622100,1843680 }, { 623780,1846100 } },
{ { 623780,1846100 }, { 624580,1846920 } },
{ { 624580,1846920 }, { 626120,1856720 } },
{ { 626120,1856720 }, { 627440,1860000 } },
{ { 627440,1860000 }, { 628000,1864299 } },
{ { 628000,1864299 }, { 627380,1865999 } },
{ { 627380,1865999 }, { 626260,1867580 } },
{ { 626260,1867580 }, { 623660,1869520 } },
{ { 623660,1869520 }, { 618680,1872780 } },
{ { 618680,1872780 }, { 617699,1873140 } },
{ { 617699,1873140 }, { 612000,1874160 } },
{ { 612000,1874160 }, { 609840,1874220 } },
{ { 609840,1874220 }, { 606940,1873860 } },
{ { 136680,1926960 }, { 135500,1926360 } },
{ { 135500,1926360 }, { 137360,1923060 } },
{ { 137360,1923060 }, { 139500,1918559 } },
{ { 139500,1918559 }, { 140780,1913239 } },
{ { 140780,1913239 }, { 139600,1913020 } },
{ { 139600,1913020 }, { 127380,1923600 } },
{ { 127380,1923600 }, { 122800,1926059 } },
{ { 122800,1926059 }, { 118879,1927719 } },
{ { 118879,1927719 }, { 114420,1928300 } },
{ { 114420,1928300 }, { 111480,1927020 } },
{ { 111480,1927020 }, { 110619,1925399 } },
{ { 110619,1925399 }, { 109620,1924200 } },
{ { 109620,1924200 }, { 108860,1922780 } },
{ { 108860,1922780 }, { 108479,1920999 } },
{ { 108479,1920999 }, { 106600,1918080 } },
{ { 106600,1918080 }, { 106220,1917740 } },
{ { 106220,1917740 }, { 105199,1916960 } },
{ { 105199,1916960 }, { 101460,1914859 } },
{ { 101460,1914859 }, { 99480,1914379 } },
{ { 99480,1914379 }, { 97179,1913499 } },
{ { 97179,1913499 }, { 94900,1911100 } },
{ { 94900,1911100 }, { 94100,1909639 } },
{ { 94100,1909639 }, { 93379,1907740 } },
{ { 93379,1907740 }, { 93960,1898259 } },
{ { 93960,1898259 }, { 93739,1896460 } },
{ { 93739,1896460 }, { 94299,1893080 } },
{ { 94299,1893080 }, { 97240,1883440 } },
{ { 97240,1883440 }, { 99799,1879780 } },
{ { 99799,1879780 }, { 100400,1878120 } },
{ { 100400,1878120 }, { 100199,1877200 } },
{ { 100199,1877200 }, { 98940,1877460 } },
{ { 98940,1877460 }, { 96320,1878480 } },
{ { 96320,1878480 }, { 86020,1881039 } },
{ { 86020,1881039 }, { 84340,1881080 } },
{ { 84340,1881080 }, { 76780,1882600 } },
{ { 76780,1882600 }, { 74380,1883580 } },
{ { 74380,1883580 }, { 72679,1884019 } },
{ { 72679,1884019 }, { 70900,1885940 } },
{ { 70900,1885940 }, { 71240,1888340 } },
{ { 71240,1888340 }, { 72720,1889940 } },
{ { 72720,1889940 }, { 74640,1891360 } },
{ { 74640,1891360 }, { 75620,1893179 } },
{ { 75620,1893179 }, { 77140,1895340 } },
{ { 77140,1895340 }, { 81040,1899500 } },
{ { 81040,1899500 }, { 82760,1900380 } },
{ { 82760,1900380 }, { 83720,1902300 } },
{ { 83720,1902300 }, { 85459,1903700 } },
{ { 85459,1903700 }, { 86960,1905940 } },
{ { 86960,1905940 }, { 88280,1913020 } },
{ { 88280,1913020 }, { 88160,1913539 } },
{ { 88160,1913539 }, { 88020,1913860 } },
{ { 88020,1913860 }, { 86080,1915200 } },
{ { 86080,1915200 }, { 85660,1916740 } },
{ { 85660,1916740 }, { 83899,1918799 } },
{ { 83899,1918799 }, { 79360,1921160 } },
{ { 79360,1921160 }, { 76400,1923140 } },
{ { 76400,1923140 }, { 70800,1926180 } },
{ { 70800,1926180 }, { 64460,1927659 } },
{ { 64460,1927659 }, { 60880,1927820 } },
{ { 60880,1927820 }, { 55780,1925580 } },
{ { 55780,1925580 }, { 54940,1925040 } },
{ { 54940,1925040 }, { 52199,1921700 } },
{ { 52199,1921700 }, { 49680,1916579 } },
{ { 49680,1916579 }, { 48719,1914180 } },
{ { 48719,1914180 }, { 48620,1913080 } },
{ { 48620,1913080 }, { 47640,1909120 } },
{ { 47640,1909120 }, { 48280,1899319 } },
{ { 48280,1899319 }, { 49140,1895600 } },
{ { 49140,1895600 }, { 50320,1892899 } },
{ { 50320,1892899 }, { 51559,1890640 } },
{ { 51559,1890640 }, { 52140,1889960 } },
{ { 52140,1889960 }, { 54640,1887999 } },
{ { 54640,1887999 }, { 55639,1886500 } },
{ { 55639,1886500 }, { 55720,1885080 } },
{ { 55720,1885080 }, { 55439,1883220 } },
{ { 55439,1883220 }, { 54640,1882159 } },
{ { 54640,1882159 }, { 54100,1880300 } },
{ { 54100,1880300 }, { 52479,1874079 } },
{ { 52479,1874079 }, { 51700,1869000 } },
{ { 51700,1869000 }, { 51600,1865419 } },
{ { 51600,1865419 }, { 51720,1859820 } },
{ { 51720,1859820 }, { 52160,1857260 } },
{ { 52160,1857260 }, { 52539,1856120 } },
{ { 52539,1856120 }, { 57240,1845720 } },
{ { 57240,1845720 }, { 58280,1844400 } },
{ { 58280,1844400 }, { 60639,1840820 } },
{ { 60639,1840820 }, { 65580,1835540 } },
{ { 65580,1835540 }, { 68340,1833340 } },
{ { 68340,1833340 }, { 71660,1831480 } },
{ { 71660,1831480 }, { 73460,1829960 } },
{ { 73460,1829960 }, { 75200,1829319 } },
{ { 75200,1829319 }, { 77200,1828960 } },
{ { 77200,1828960 }, { 78640,1828920 } },
{ { 78640,1828920 }, { 111780,1842700 } },
{ { 111780,1842700 }, { 112800,1843480 } },
{ { 112800,1843480 }, { 113879,1844879 } },
{ { 113879,1844879 }, { 116379,1847379 } },
{ { 116379,1847379 }, { 116360,1847580 } },
{ { 116360,1847580 }, { 117100,1848799 } },
{ { 117100,1848799 }, { 120160,1851799 } },
{ { 120160,1851799 }, { 121860,1852320 } },
{ { 121860,1852320 }, { 124280,1852679 } },
{ { 124280,1852679 }, { 128920,1854659 } },
{ { 128920,1854659 }, { 130840,1856360 } },
{ { 130840,1856360 }, { 133520,1859460 } },
{ { 133520,1859460 }, { 135079,1860860 } },
{ { 135079,1860860 }, { 137280,1864440 } },
{ { 137280,1864440 }, { 142980,1872899 } },
{ { 142980,1872899 }, { 144600,1875840 } },
{ { 144600,1875840 }, { 147240,1883480 } },
{ { 147240,1883480 }, { 147460,1886539 } },
{ { 147460,1886539 }, { 147660,1886920 } },
{ { 147660,1886920 }, { 148399,1891720 } },
{ { 148399,1891720 }, { 148820,1896799 } },
{ { 148820,1896799 }, { 148399,1898880 } },
{ { 148399,1898880 }, { 148799,1899420 } },
{ { 148799,1899420 }, { 150520,1898539 } },
{ { 150520,1898539 }, { 154760,1892760 } },
{ { 154760,1892760 }, { 156580,1889240 } },
{ { 156580,1889240 }, { 156940,1888900 } },
{ { 156940,1888900 }, { 157540,1889540 } },
{ { 157540,1889540 }, { 156860,1896819 } },
{ { 156860,1896819 }, { 155639,1903940 } },
{ { 155639,1903940 }, { 153679,1908100 } },
{ { 153679,1908100 }, { 152859,1909039 } },
{ { 152859,1909039 }, { 149660,1915580 } },
{ { 149660,1915580 }, { 148000,1918600 } },
{ { 148000,1918600 }, { 141640,1926980 } },
{ { 141640,1926980 }, { 140060,1927899 } },
{ { 140060,1927899 }, { 136960,1929019 } },
{ { 136960,1929019 }, { 136680,1926960 } },
{ { 627100,1941519 }, { 625120,1940060 } },
{ { 625120,1940060 }, { 614580,1934680 } },
{ { 614580,1934680 }, { 608780,1929319 } },
{ { 608780,1929319 }, { 607400,1927679 } },
{ { 607400,1927679 }, { 606160,1925920 } },
{ { 606160,1925920 }, { 604480,1922240 } },
{ { 604480,1922240 }, { 602420,1916819 } },
{ { 602420,1916819 }, { 602279,1915260 } },
{ { 602279,1915260 }, { 602880,1907960 } },
{ { 602880,1907960 }, { 604140,1902719 } },
{ { 604140,1902719 }, { 605880,1898539 } },
{ { 605880,1898539 }, { 606640,1897399 } },
{ { 606640,1897399 }, { 609680,1894420 } },
{ { 609680,1894420 }, { 611099,1893640 } },
{ { 611099,1893640 }, { 616099,1890340 } },
{ { 616099,1890340 }, { 617520,1889160 } },
{ { 617520,1889160 }, { 620220,1885540 } },
{ { 620220,1885540 }, { 624480,1882260 } },
{ { 624480,1882260 }, { 628660,1880280 } },
{ { 628660,1880280 }, { 632520,1879659 } },
{ { 632520,1879659 }, { 637760,1879859 } },
{ { 637760,1879859 }, { 640899,1881500 } },
{ { 640899,1881500 }, { 644220,1883980 } },
{ { 644220,1883980 }, { 643900,1890860 } },
{ { 643900,1890860 }, { 643060,1894160 } },
{ { 643060,1894160 }, { 642459,1900320 } },
{ { 642459,1900320 }, { 642400,1903120 } },
{ { 642400,1903120 }, { 643819,1908519 } },
{ { 643819,1908519 }, { 644700,1912560 } },
{ { 644700,1912560 }, { 644640,1916380 } },
{ { 644640,1916380 }, { 644959,1918600 } },
{ { 644959,1918600 }, { 642540,1925620 } },
{ { 642540,1925620 }, { 642439,1926640 } },
{ { 642439,1926640 }, { 641860,1928300 } },
{ { 641860,1928300 }, { 638700,1932939 } },
{ { 638700,1932939 }, { 634820,1934200 } },
{ { 634820,1934200 }, { 631980,1936539 } },
{ { 631980,1936539 }, { 630160,1940600 } },
{ { 630160,1940600 }, { 627740,1941640 } },
{ { 627740,1941640 }, { 627400,1941660 } },
{ { 627400,1941660 }, { 627100,1941519 } }
};
#if 0
// Verify whether two any two non-neighbor line segments intersect. They should not, otherwise the Voronoi builder
// is not guaranteed to succeed.
for (size_t i = 0; i < lines.size(); ++ i)
for (size_t j = i + 1; j < lines.size(); ++ j) {
Point &ip1 = lines[i].a;
Point &ip2 = lines[i].b;
Point &jp1 = lines[j].a;
Point &jp2 = lines[j].b;
if (&ip1 != &jp2 && &jp1 != &ip2) {
REQUIRE(! Slic3r::Geometry::segments_intersect(ip1, ip2, jp1, jp2));
}
}
#endif
VD vd;
construct_voronoi(lines.begin(), lines.end(), &vd);
for (const auto& edge : vd.edges())
if (edge.is_finite()) {
auto v0 = edge.vertex0();
auto v1 = edge.vertex1();
REQUIRE((v0->x() == 0 || std::isnormal(v0->x())));
REQUIRE((v0->y() == 0 || std::isnormal(v0->y())));
REQUIRE((v1->x() == 0 || std::isnormal(v1->x())));
REQUIRE((v1->y() == 0 || std::isnormal(v1->y())));
}
#ifdef VORONOI_DEBUG_OUT
dump_voronoi_to_svg(debug_out_path("voronoi-NaNs.svg").c_str(),
vd, Points(), lines, Polygons(), Lines(), 0.015);
#endif
}
struct OffsetTest {
double distance;
size_t num_outer;
size_t num_inner;
};
TEST_CASE("Voronoi offset", "[VoronoiOffset]")
{
Polygons poly_with_hole = { Polygon {
{ 0, 10000000},
{ 700000, 0},
{ 700000, 9000000},
{ 9100000, 9000000},
{ 9100000, 0},
{10000000, 10000000}
}
};
double area = std::accumulate(poly_with_hole.begin(), poly_with_hole.end(), 0., [](double a, auto &poly){ return a + poly.area(); });
REQUIRE(area > 0.);
VD vd;
Lines lines = to_lines(poly_with_hole);
construct_voronoi(lines.begin(), lines.end(), &vd);
for (const OffsetTest &ot : {
OffsetTest { scale_(0.2), 1, 1 },
OffsetTest { scale_(0.4), 1, 1 },
OffsetTest { scale_(0.5), 1, 1 },
OffsetTest { scale_(0.505), 1, 2 },
OffsetTest { scale_(0.51), 1, 2 },
OffsetTest { scale_(0.52), 1, 1 },
OffsetTest { scale_(0.53), 1, 1 },
OffsetTest { scale_(0.54), 1, 1 },
OffsetTest { scale_(0.55), 1, 0 }
}) {
Polygons offsetted_polygons_out = voronoi_offset(vd, lines, ot.distance, scale_(0.005));
REQUIRE(offsetted_polygons_out.size() == ot.num_outer);
#ifdef VORONOI_DEBUG_OUT
dump_voronoi_to_svg(debug_out_path("voronoi-offset-out-%lf.svg", ot.distance).c_str(),
vd, Points(), lines, offsetted_polygons_out);
#endif
Polygons offsetted_polygons_in = voronoi_offset(vd, lines, - ot.distance, scale_(0.005));
REQUIRE(offsetted_polygons_in.size() == ot.num_inner);
#ifdef VORONOI_DEBUG_OUT
dump_voronoi_to_svg(debug_out_path("voronoi-offset-in-%lf.svg", ot.distance).c_str(),
vd, Points(), lines, offsetted_polygons_in);
#endif
}
}
TEST_CASE("Voronoi offset 2", "[VoronoiOffset]")
{
coord_t mm = coord_t(scale_(1.));
Polygons poly = {
Polygon {
{ 0, 0 },
{ 1, 0 },
{ 1, 1 },
{ 2, 1 },
{ 2, 0 },
{ 3, 0 },
{ 3, 2 },
{ 0, 2 }
},
Polygon {
{ 0, - 1 - 2 },
{ 3, - 1 - 2 },
{ 3, - 1 - 0 },
{ 2, - 1 - 0 },
{ 2, - 1 - 1 },
{ 1, - 1 - 1 },
{ 1, - 1 - 0 },
{ 0, - 1 - 0 }
},
};
for (Polygon &p : poly)
for (Point &pt : p.points)
pt *= mm;
double area = std::accumulate(poly.begin(), poly.end(), 0., [](double a, auto &poly){ return a + poly.area(); });
REQUIRE(area > 0.);
VD vd;
Lines lines = to_lines(poly);
construct_voronoi(lines.begin(), lines.end(), &vd);
for (const OffsetTest &ot : {
OffsetTest { scale_(0.2), 2, 2 },
OffsetTest { scale_(0.4), 2, 2 },
OffsetTest { scale_(0.45), 2, 2 },
OffsetTest { scale_(0.48), 2, 2 },
//FIXME Exact intersections of an Offset curve with any Voronoi vertex are not handled correctly yet.
// OffsetTest { scale_(0.5), 2, 2 },
OffsetTest { scale_(0.505), 2, 4 },
OffsetTest { scale_(0.7), 2, 0 },
OffsetTest { scale_(0.8), 1, 0 }
}) {
Polygons offsetted_polygons_out = voronoi_offset(vd, lines, ot.distance, scale_(0.005));
#ifdef VORONOI_DEBUG_OUT
dump_voronoi_to_svg(debug_out_path("voronoi-offset2-out-%lf.svg", ot.distance).c_str(),
vd, Points(), lines, offsetted_polygons_out);
#endif
REQUIRE(offsetted_polygons_out.size() == ot.num_outer);
Polygons offsetted_polygons_in = voronoi_offset(vd, lines, - ot.distance, scale_(0.005));
#ifdef VORONOI_DEBUG_OUT
dump_voronoi_to_svg(debug_out_path("voronoi-offset2-in-%lf.svg", ot.distance).c_str(),
vd, Points(), lines, offsetted_polygons_in);
#endif
REQUIRE(offsetted_polygons_in.size() == ot.num_inner);
}
}
TEST_CASE("Voronoi offset 3", "[VoronoiOffset]")
{
coord_t mm = coord_t(scale_(1.));
Polygons poly = {
Polygon {
{ 0, 0 },
{ 2, 0 },
{ 2, 1 },
{ 3, 1 },
{ 3, 0 },
{ 5, 0 },
{ 5, 2 },
{ 4, 2 },
{ 4, 3 },
{ 1, 3 },
{ 1, 2 },
{ 0, 2 }
},
Polygon {
{ 0, -1 - 2 },
{ 1, -1 - 2 },
{ 1, -1 - 3 },
{ 4, -1 - 3 },
{ 4, -1 - 2 },
{ 5, -1 - 2 },
{ 5, -1 - 0 },
{ 3, -1 - 0 },
{ 3, -1 - 1 },
{ 2, -1 - 1 },
{ 2, -1 - 0 },
{ 0, -1 - 0 }
},
};
for (Polygon &p : poly) {
REQUIRE(p.area() > 0.);
for (Point &pt : p.points)
pt *= mm;
}
VD vd;
Lines lines = to_lines(poly);
construct_voronoi(lines.begin(), lines.end(), &vd);
for (const OffsetTest &ot : {
OffsetTest { scale_(0.2), 2, 2 },
OffsetTest { scale_(0.4), 2, 2 },
OffsetTest { scale_(0.49), 2, 2 },
//FIXME this fails
// OffsetTest { scale_(0.5), 2, 2 },
OffsetTest { scale_(0.51), 2, 2 },
OffsetTest { scale_(0.56), 2, 2 },
OffsetTest { scale_(0.6), 2, 2 },
OffsetTest { scale_(0.7), 2, 2 },
OffsetTest { scale_(0.8), 1, 6 },
OffsetTest { scale_(0.9), 1, 6 },
OffsetTest { scale_(0.99), 1, 6 },
//FIXME this fails
// OffsetTest { scale_(1.0), 1, 6 },
OffsetTest { scale_(1.01), 1, 0 },
}) {
Polygons offsetted_polygons_out = voronoi_offset(vd, lines, ot.distance, scale_(0.005));
#ifdef VORONOI_DEBUG_OUT
dump_voronoi_to_svg(debug_out_path("voronoi-offset2-out-%lf.svg", ot.distance).c_str(),
vd, Points(), lines, offsetted_polygons_out);
#endif
REQUIRE(offsetted_polygons_out.size() == ot.num_outer);
Polygons offsetted_polygons_in = voronoi_offset(vd, lines, - ot.distance, scale_(0.005));
#ifdef VORONOI_DEBUG_OUT
dump_voronoi_to_svg(debug_out_path("voronoi-offset2-in-%lf.svg", ot.distance).c_str(),
vd, Points(), lines, offsetted_polygons_in);
#endif
REQUIRE(offsetted_polygons_in.size() == ot.num_inner);
}
}