Prevent degenerate triangles in pad.

1 files changed, 29 insertions, 19 deletions

diff --git a/sandboxes/slabasebed/slabasebed.cpp b/sandboxes/slabasebed/slabasebed.cpp
index 323741609..0c34eb9f5 100644
--- a/sandboxes/slabasebed/slabasebed.cpp
+++ b/sandboxes/slabasebed/slabasebed.cpp
@@ -4,6 +4,7 @@
 
 #include <libslic3r/libslic3r.h>
 #include <libslic3r/TriangleMesh.hpp>
+#include <libslic3r/Tesselate.hpp>
 #include <libslic3r/SLA/SLABasePool.hpp>
 #include <libslic3r/SLA/SLABoilerPlate.hpp>
 #include <libnest2d/tools/benchmark.h>
@@ -14,7 +15,9 @@ const std::string USAGE_STR = {
 
 namespace Slic3r { namespace sla {
 
-Contour3D convert(const Polygons& triangles, coord_t z, bool dir);
+Contour3D create_base_pool(const ExPolygons &ground_layer, 
+                           const PoolConfig& cfg = PoolConfig());
+
 Contour3D walls(const Polygon& floor_plate, const Polygon& ceiling,
                 double floor_z_mm, double ceiling_z_mm,
                 double offset_difference_mm, ThrowOnCancel thr);
@@ -47,31 +50,38 @@ int main(const int argc, const char *argv[]) {
 
     if(ground_slice.empty()) return EXIT_FAILURE;
 
-    ExPolygon bottom_plate = ground_slice.front();
-    ExPolygon top_plate = bottom_plate;
-    sla::offset(top_plate, coord_t(3.0/SCALING_FACTOR));
-    sla::offset(bottom_plate, coord_t(1.0/SCALING_FACTOR));
+//    ExPolygon bottom_plate = ground_slice.front();
+//    ExPolygon top_plate = bottom_plate;
+//    sla::offset(top_plate, coord_t(3.0/SCALING_FACTOR));
+//    sla::offset(bottom_plate, coord_t(1.0/SCALING_FACTOR));
 
     bench.start();
 
-    Polygons top_plate_triangles, bottom_plate_triangles;
-    top_plate.triangulate_p2t(&top_plate_triangles);
-    bottom_plate.triangulate_p2t(&bottom_plate_triangles);
-
-    auto top_plate_mesh = sla::convert(top_plate_triangles, coord_t(3.0/SCALING_FACTOR), false);
-    auto bottom_plate_mesh = sla::convert(bottom_plate_triangles, 0, true);
-
-    mesh.merge(bottom_plate_mesh);
-    mesh.merge(top_plate_mesh);
-
-    sla::Contour3D w = sla::walls(bottom_plate.contour, top_plate.contour, 0, 3, 2.0, [](){});
-
-    mesh.merge(w);
-//    sla::create_base_pool(ground_slice, basepool);
+//    TriangleMesh pool;
+    sla::PoolConfig cfg;
+    cfg.min_wall_height_mm = 0;
+    cfg.edge_radius_mm = 0.2;
+    mesh = sla::create_base_pool(ground_slice, cfg);
+    
+//    mesh.merge(triangulate_expolygon_3d(top_plate, 3.0, false));
+//    mesh.merge(triangulate_expolygon_3d(bottom_plate, 0.0, true));
+//    mesh = sla::walls(bottom_plate.contour, top_plate.contour, 0, 3, 2.0, [](){});
+    
     bench.stop();
 
     cout << "Base pool creation time: " << std::setprecision(10)
          << bench.getElapsedSec() << " seconds." << endl;
+    
+//    auto point = []()
+    for(auto& trind : mesh.indices) {
+        Vec3d p0 = mesh.points[size_t(trind[0])];
+        Vec3d p1 = mesh.points[size_t(trind[1])];
+        Vec3d p2 = mesh.points[size_t(trind[2])];
+        Vec3d p01 = p1 - p0;
+        Vec3d p02 = p2 - p0;
+        auto a = p01.cross(p02).norm() / 2.0;
+        if(std::abs(a) < 1e-6) std::cout << "degenerate triangle" << std::endl;
+    }
 
 //    basepool.write_ascii("out.stl");