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Test sla support point generation determinism with seed parameter

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This commit is contained in:
tamasmeszaros 2020-01-14 10:41:42 +01:00
parent 8af6890cab
commit ce49f0a294
2 changed files with 49 additions and 1 deletions
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3
src/libslic3r/SLA/SupportPointGenerator.hpp
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@ -31,7 +31,8 @@ public:
SupportPointGenerator(const EigenMesh3D& emesh, const Config& config, std::function<void(void)> throw_on_cancel, std::function<void(int)> statusfn);
const std::vector<SupportPoint>& output() { return m_output; }
const std::vector<SupportPoint>& output() const { return m_output; }
std::vector<SupportPoint>& output() { return m_output; }
struct MyLayer;

47
tests/sla_print/sla_print_tests.cpp
View file

@ -85,6 +85,53 @@ TEST_CASE("Pillar pairhash should be unique", "[SLASupportGeneration]") {
test_pairhash<unsigned, unsigned long>();
}
TEST_CASE("Support point generator should be deterministic if seeded",
"[SLASupportGeneration], [SLAPointGen]") {
TriangleMesh mesh = load_model("A_upsidedown.obj");
sla::EigenMesh3D emesh{mesh};
sla::SupportConfig supportcfg;
sla::SupportPointGenerator::Config autogencfg;
autogencfg.head_diameter = float(2 * supportcfg.head_front_radius_mm);
sla::SupportPointGenerator point_gen{emesh, autogencfg, [] {}, [](int) {}};
TriangleMeshSlicer slicer{&mesh};
auto bb = mesh.bounding_box();
double zmin = bb.min.z();
double zmax = bb.max.z();
double gnd = zmin - supportcfg.object_elevation_mm;
auto layer_h = 0.05f;
auto slicegrid = grid(float(gnd), float(zmax), layer_h);
std::vector<ExPolygons> slices;
slicer.slice(slicegrid, CLOSING_RADIUS, &slices, []{});
point_gen.execute(slices, slicegrid, 0);
auto get_chksum = [](const std::vector<sla::SupportPoint> &pts){
long long chksum = 0;
for (auto &pt : pts) {
auto p = scaled(pt.pos);
chksum += p.x() + p.y() + p.z();
}
return chksum;
};
long long checksum = get_chksum(point_gen.output());
size_t ptnum = point_gen.output().size();
REQUIRE(point_gen.output().size() > 0);
for (int i = 0; i < 20; ++i) {
point_gen.output().clear();
point_gen.execute(slices, slicegrid, 0);
REQUIRE(point_gen.output().size() == ptnum);
REQUIRE(checksum == get_chksum(point_gen.output()));
}
}
TEST_CASE("Flat pad geometry is valid", "[SLASupportGeneration]") {
sla::PadConfig padcfg;