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Add tests to find_merge_pt and make them pass

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tamasmeszaros 2022-05-25 15:12:22 +02:00
parent 371da354a0
commit 8a78428d10
2 changed files with 86 additions and 4 deletions
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74
tests/sla_print/sla_print_tests.cpp
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@ -8,6 +8,7 @@
#include <libslic3r/TriangleMeshSlicer.hpp>
#include <libslic3r/SLA/SupportTreeMesher.hpp>
#include <libslic3r/BranchingTree/PointCloud.hpp>
namespace {
@ -172,6 +173,79 @@ TEST_CASE("DefaultSupports::FloorSupportsDoNotPierceModel", "[SLASupportGenerati
// for (auto &fname: SUPPORT_TEST_MODELS) test_supports(fname, supportcfg);
//}
TEST_CASE("BranchingSupports::MergePointFinder", "[SLASupportGeneration][Branching]") {
SECTION("Identical points have the same merge point") {
Vec3f a{0.f, 0.f, 0.f}, b = a;
float slope = PI / 4.f;
auto mergept = branchingtree::find_merge_pt(a, b, slope);
REQUIRE(bool(mergept));
REQUIRE((*mergept - b).norm() < EPSILON);
REQUIRE((*mergept - a).norm() < EPSILON);
}
// ^ Z
// | a *
// |
// | b * <= mergept
SECTION("Points at different heights have the lower point as mergepoint") {
Vec3f a{0.f, 0.f, 0.f}, b = {0.f, 0.f, -1.f};
float slope = PI / 4.f;
auto mergept = branchingtree::find_merge_pt(a, b, slope);
REQUIRE(bool(mergept));
REQUIRE((*mergept - b).squaredNorm() < EPSILON);
}
// -|---------> X
// a b
// * *
// * <= mergept
SECTION("Points at different X have mergept in the middle at lower Z") {
Vec3f a{0.f, 0.f, 0.f}, b = {1.f, 0.f, 0.f};
float slope = PI / 4.f;
auto mergept = branchingtree::find_merge_pt(a, b, slope);
REQUIRE(bool(mergept));
// Distance of mergept should be equal from both input points
float D = std::abs((*mergept - b).squaredNorm() - (*mergept - a).squaredNorm());
REQUIRE(D < EPSILON);
}
// -|---------> Y
// a b
// * *
// * <= mergept
SECTION("Points at different Y have mergept in the middle at lower Z") {
Vec3f a{0.f, 0.f, 0.f}, b = {0.f, 1.f, 0.f};
float slope = PI / 4.f;
auto mergept = branchingtree::find_merge_pt(a, b, slope);
REQUIRE(bool(mergept));
// Distance of mergept should be equal from both input points
float D = std::abs((*mergept - b).squaredNorm() - (*mergept - a).squaredNorm());
REQUIRE(D < EPSILON);
}
SECTION("Points separated by less than critical angle have the lower point as mergept") {
Vec3f a{0.f, 0.f, 0.f}, b = {-0.5f, -0.5f, -1.f};
float slope = PI / 4.f;
auto mergept = branchingtree::find_merge_pt(a, b, slope);
REQUIRE(bool(mergept));
REQUIRE((*mergept - b).norm() < EPSILON);
}
}
TEST_CASE("BranchingSupports::ElevatedSupportsDoNotPierceModel", "[SLASupportGeneration][Branching]") {
sla::SupportTreeConfig supportcfg;