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Create smaller supports in problematic areas with established strategies

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Completely remove the concept of CompactBridge.

Replace it with Heads having the same back radius as front radius. 

Try to apply the same rules for mini supports as in the route_to_model step.

Increased accuracy of bridge_mesh_intersect shot from support points


Refining mini support integration
This commit is contained in:
tamasmeszaros 2020-06-02 17:31:52 +02:00
parent 38239f09e3
commit 0622322146
8 changed files with 571 additions and 357 deletions
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96
tests/sla_print/sla_treebuilder_tests.cpp Normal file
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#include <catch2/catch.hpp>
#include <test_utils.hpp>
#include "libslic3r/TriangleMesh.hpp"
#include "libslic3r/SLA/SupportTreeBuilder.hpp"
TEST_CASE("Test bridge_mesh_intersect on a cube's wall", "[SLABridgeMeshInters]") {
using namespace Slic3r;
TriangleMesh cube = make_cube(10., 10., 10.);
sla::SupportConfig cfg = {}; // use default config
sla::SupportPoints pts = {{10.f, 5.f, 5.f, float(cfg.head_front_radius_mm), false}};
sla::SupportableMesh sm{cube, pts, cfg};
SECTION("Bridge is straight horizontal and pointing away from the cube") {
sla::Bridge bridge(pts[0].pos.cast<double>(), Vec3d{15., 5., 5.},
pts[0].head_front_radius);
auto hit = sla::query_hit(sm, bridge);
REQUIRE(std::isinf(hit.distance()));
cube.merge(sla::to_triangle_mesh(bridge.mesh));
cube.require_shared_vertices();
cube.WriteOBJFile("cube1.obj");
}
SECTION("Bridge is tilted down in 45 degrees, pointing away from the cube") {
sla::Bridge bridge(pts[0].pos.cast<double>(), Vec3d{15., 5., 0.},
pts[0].head_front_radius);
auto hit = sla::query_hit(sm, bridge);
REQUIRE(std::isinf(hit.distance()));
cube.merge(sla::to_triangle_mesh(bridge.mesh));
cube.require_shared_vertices();
cube.WriteOBJFile("cube2.obj");
}
}
TEST_CASE("Test bridge_mesh_intersect on a sphere", "[SLABridgeMeshInters]") {
using namespace Slic3r;
TriangleMesh sphere = make_sphere(1.);
sla::SupportConfig cfg = {}; // use default config
cfg.head_back_radius_mm = cfg.head_front_radius_mm;
sla::SupportPoints pts = {{1.f, 0.f, 0.f, float(cfg.head_front_radius_mm), false}};
sla::SupportableMesh sm{sphere, pts, cfg};
SECTION("Bridge is straight horizontal and pointing away from the sphere") {
sla::Bridge bridge(pts[0].pos.cast<double>(), Vec3d{2., 0., 0.},
pts[0].head_front_radius);
auto hit = sla::query_hit(sm, bridge);
sphere.merge(sla::to_triangle_mesh(bridge.mesh));
sphere.require_shared_vertices();
sphere.WriteOBJFile("sphere1.obj");
REQUIRE(std::isinf(hit.distance()));
}
SECTION("Bridge is tilted down 45 deg and pointing away from the sphere") {
sla::Bridge bridge(pts[0].pos.cast<double>(), Vec3d{2., 0., -2.},
pts[0].head_front_radius);
auto hit = sla::query_hit(sm, bridge);
sphere.merge(sla::to_triangle_mesh(bridge.mesh));
sphere.require_shared_vertices();
sphere.WriteOBJFile("sphere2.obj");
REQUIRE(std::isinf(hit.distance()));
}
SECTION("Bridge is tilted down 90 deg and pointing away from the sphere") {
sla::Bridge bridge(pts[0].pos.cast<double>(), Vec3d{1., 0., -2.},
pts[0].head_front_radius);
auto hit = sla::query_hit(sm, bridge);
sphere.merge(sla::to_triangle_mesh(bridge.mesh));
sphere.require_shared_vertices();
sphere.WriteOBJFile("sphere3.obj");
REQUIRE(std::isinf(hit.distance()));
}
}