43 lines
1.6 KiB
C++
43 lines
1.6 KiB
C++
#include <catch2/catch.hpp>
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#include "test_data.hpp"
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#include "clipper/clipper_z.hpp"
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using namespace Slic3r;
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// Test case for an issue with duplicity vertices (same XY coordinates but differ in Z coordinates) in Clipper 6.2.9,
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// (related to https://sourceforge.net/p/polyclipping/bugs/160/) that was fixed in Clipper 6.4.2.
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SCENARIO("Clipper Z", "[ClipperZ]")
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{
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ClipperLib_Z::Path subject;
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subject.emplace_back(-2000, -1000, 10);
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subject.emplace_back(-2000, 1000, 10);
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subject.emplace_back( 2000, 1000, 10);
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subject.emplace_back( 2000, -1000, 10);
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ClipperLib_Z::Path clip;
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clip.emplace_back(-1000, -2000, -5);
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clip.emplace_back(-1000, 2000, -5);
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clip.emplace_back( 1000, 2000, -5);
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clip.emplace_back( 1000, -2000, -5);
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ClipperLib_Z::Clipper clipper;
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clipper.ZFillFunction([](const ClipperLib_Z::IntPoint &e1bot, const ClipperLib_Z::IntPoint &e1top, const ClipperLib_Z::IntPoint &e2bot,
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const ClipperLib_Z::IntPoint &e2top, ClipperLib_Z::IntPoint &pt) {
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pt.z() = 1;
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});
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clipper.AddPath(subject, ClipperLib_Z::ptSubject, false);
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clipper.AddPath(clip, ClipperLib_Z::ptClip, true);
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ClipperLib_Z::PolyTree polytree;
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ClipperLib_Z::Paths paths;
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clipper.Execute(ClipperLib_Z::ctIntersection, polytree, ClipperLib_Z::pftNonZero, ClipperLib_Z::pftNonZero);
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ClipperLib_Z::PolyTreeToPaths(polytree, paths);
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REQUIRE(paths.size() == 1);
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REQUIRE(paths.front().size() == 2);
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for (const ClipperLib_Z::IntPoint &pt : paths.front())
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REQUIRE(pt.z() == 1);
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} |