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partial refactor

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This commit is contained in:
Filip Sykala 2022-03-11 16:54:53 +01:00
parent 9e1ebcf4c6
commit 572207e1c3
1 changed files with 434 additions and 124 deletions
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558
tests/libslic3r/test_emboss.cpp
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@ -271,33 +271,78 @@ TEST_CASE("Italic check", "[Emboss]")
#include <CGAL/Surface_mesh.h>
#include <CGAL/Cartesian_converter.h>
// Referencing a glyph contour (an ExPolygon) plus a vertex base of the contour.
struct GlyphContour {
// Index of a glyph in a vector of glyphs.
int32_t glyph{ -1 };
// Index of an ExPolygon in ExPolygons of a glyph.
/// <summary>
/// Distiguish point made by shape(Expolygon)
/// Referencing an ExPolygon contour plus a vertex base of the contour.
/// Used for adressing Vertex of mesh created by extrude ExPolygons
/// </summary>
struct ShapesVertexId {
// Index of an ExPolygon in ExPolygons.
int32_t expoly{ -1 };
// Index of a contour in ExPolygon.
// 0 - outer contour, >0 - hole
int32_t contour{ -1 };
// Base of the zero'th point of a contour in text mesh.
// There are two vertices (front and rear) created for each contour,
// thus there are 2x more vertices in text mesh than the number of contour points.
int32_t vertex_base{ -1 };
};
struct GlyphID
/// <summary>
/// IntersectingElemnt
///
/// Adress polygon inside of ExPolygon
/// Keep information about source of vertex:
/// - from face (one of 2 possible)
/// - from edge (one of 2 possible)
///
/// V1~~~~V2
/// : f1 /|
/// : / |
/// : /e1|
/// : / |e2
/// :/ f2 |
/// V1'~~~V2'
///
/// | .. edge
/// / .. edge
/// : .. foreign edge - neighbor
/// ~ .. no care edge - idealy should not cross model
/// V1,V1' .. projected 2d point to 3d
/// V2,V2' .. projected 2d point to 3d
///
/// f1 .. text_face_1 (triangle face made by side of shape contour)
/// f2 .. text_face_2
/// e1 .. text_edge_1 (edge on side of face made by side of shape contour)
/// e2 .. text_edge_2
///
/// </summary>
struct IntersectingElemnt
{
int32_t glyph_contour{ -1 };
// Index into vector of ShapeVertexId
// describe point on shape contour
int32_t vertex_index{ -1 };
// index of point in Polygon contour
int32_t point_index{-1};
// vertex or edge ID, where edge ID is the index of the source point.
// There are 4 consecutive indices generated for a single glyph edge:
// 0th - 1st text edge (straight)
// 1th - 1st text face
// 2nd - 2nd text edge (diagonal)
// 3th - 2nd text face
int32_t idx { -1 };
// Type of intersecting element from extruded shape( 3d )
enum class Type {
edge_1 = 0,
face_1 = 1,
edge_2 = 2,
face_2 = 3,
GlyphID& operator++() { ++idx; return *this; }
undefined = 4
} type = Type::undefined;
};
namespace Slic3r::MeshBoolean::cgal2 {
@ -305,9 +350,9 @@ namespace Slic3r::MeshBoolean::cgal2 {
namespace CGALProc = CGAL::Polygon_mesh_processing;
namespace CGALParams = CGAL::Polygon_mesh_processing::parameters;
// using EpecKernel = CGAL::Exact_predicates_exact_constructions_kernel;
using EpicKernel = CGAL::Exact_predicates_inexact_constructions_kernel;
using _EpicMesh = CGAL::Surface_mesh<EpicKernel::Point_3>;
// using EpecKernel = CGAL::Exact_predicates_exact_constructions_kernel;
// using _EpecMesh = CGAL::Surface_mesh<EpecKernel::Point_3>;
using CGALMesh = _EpicMesh;
@ -334,62 +379,124 @@ namespace Slic3r::MeshBoolean::cgal2 {
using VI = typename CGALMesh::Vertex_index;
for (auto& f : F) {
auto fid = out.add_face(VI(f(0)), VI(f(1)), VI(f(2)));
object_face_source_id[fid] = int32_t(&f - &F.front());
// index of face in source triangle mesh
int32_t index = static_cast<int32_t>(&f - &F.front());
object_face_source_id[fid] = index;
}
}
void glyph2model(
const ExPolygons &glyph,
int32_t glyph_id,
const Slic3r::Emboss::IProject &projection,
CGALMesh &out,
std::vector<GlyphContour> &glyph_contours,
CGALMesh::Property_map<CGAL::SM_Edge_index, GlyphID> &glyph_id_edge,
CGALMesh::Property_map<CGAL::SM_Face_index, GlyphID> &glyph_id_face)
/// <summary>
/// Convert triangle mesh model to CGAL Surface_mesh
/// Add property map for source face index
/// </summary>
/// <param name="its">Model</param>
/// <param name="face_map_name">Property map name for store conversion from CGAL face to index to its</param>
/// <returns>CGAL mesh - half edge mesh</returns>
CGALMesh to_cgal(const indexed_triangle_set &its,
const std::string &face_map_name)
{
CGALMesh result;
if (its.empty()) return result;
const std::vector<stl_vertex> &V = its.vertices;
const std::vector<stl_triangle_vertex_indices> &F = its.indices;
// convert from CGAL face to its face
auto face_map = result.add_property_map<CGALMesh::Face_index, int32_t>(face_map_name).first;
size_t vertices_count = V.size();
size_t edges_count = (F.size() * 3) / 2;
size_t faces_count = F.size();
result.reserve(vertices_count, edges_count, faces_count);
for (auto &v : V)
result.add_vertex(typename CGALMesh::Point{v.x(), v.y(), v.z()});
using VI = typename CGALMesh::Vertex_index;
for (auto &f : F)
{
auto fid = result.add_face(VI(f(0)), VI(f(1)), VI(f(2)));
// index of face in source triangle mesh
int32_t index = static_cast<int32_t>(&f - &F.front());
face_map[fid] = index;
}
return result;
}
/// <summary>
/// Covert 2d shape (e.g. Glyph) to CGAL model
/// </summary>
/// <param name="shape">2d shape to project</param>
/// <param name="projection">Define transformation 2d point into 3d</param>
/// <param name="shape_id">Identify shape</param>
/// <param name="edge_shape_map_name">Name of property map to store conversion from edge to contour</param>
/// <param name="face_shape_map_name">Name of property map to store conversion from face to contour</param>
/// <param name="contour_indices">Identify point on shape contour</param>
/// <returns>CGAL model of extruded shape</returns>
CGALMesh to_cgal(const ExPolygon &shape,
const Slic3r::Emboss::IProject &projection,
int32_t shape_id,
const std::string &edge_shape_map_name,
const std::string &face_shape_map_name,
std::vector<ShapesVertexId> &contour_indices)
{
CGALMesh result;
if (shape.empty()) return result;
auto edge_shape_map = result.add_property_map<CGALMesh::Edge_index, IntersectingElemnt>(edge_shape_map_name).first;
auto face_shape_map = result.add_property_map<CGALMesh::Face_index, IntersectingElemnt>(face_shape_map_name).first;
std::vector<CGALMesh::Vertex_index> indices;
auto insert_contour = [&projection, &indices , &out, glyph_id, &glyph_contours, &glyph_id_edge, &glyph_id_face](const Polygon& polygon, int32_t iexpoly, int32_t id) {
auto insert_contour = [&projection, &indices , &result, &contour_indices, &edge_shape_map, &face_shape_map](const Polygon& polygon, int32_t iexpoly, int32_t id) {
indices.clear();
indices.reserve(polygon.points.size() * 2);
size_t num_vertices_old = out.number_of_vertices();
GlyphID glid{ int32_t(glyph_contours.size()), 0 };
glyph_contours.push_back({ glyph_id, iexpoly, id, int32_t(num_vertices_old) });
size_t num_vertices_old = result.number_of_vertices();
int32_t vertex_index = static_cast<int32_t>(contour_indices.size());
contour_indices.push_back({iexpoly, id, int32_t(num_vertices_old) });
for (const Point& p2 : polygon.points) {
auto p = projection.project(p2);
auto vi = out.add_vertex(typename CGALMesh::Point{ p.first.x(), p.first.y(), p.first.z() });
auto vi = result.add_vertex(typename CGALMesh::Point{ p.first.x(), p.first.y(), p.first.z() });
assert((size_t)vi == indices.size() + num_vertices_old);
indices.emplace_back(vi);
vi = out.add_vertex(typename CGALMesh::Point{ p.second.x(), p.second.y(), p.second.z() });
vi = result.add_vertex(typename CGALMesh::Point{ p.second.x(), p.second.y(), p.second.z() });
assert((size_t)vi == indices.size() + num_vertices_old);
indices.emplace_back(vi);
}
int32_t contour_index = 0;
for (int32_t i = 0; i < int32_t(indices.size()); i += 2) {
int32_t j = (i + 2) % int32_t(indices.size());
auto find_edge = [&out](CGALMesh::Face_index fi, CGALMesh::Vertex_index from, CGALMesh::Vertex_index to) {
CGALMesh::Halfedge_index hi = out.halfedge(fi);
for (; out.target(hi) != to; hi = out.next(hi));
assert(out.source(hi) == from);
assert(out.target(hi) == to);
auto find_edge = [&result](CGALMesh::Face_index fi, CGALMesh::Vertex_index from, CGALMesh::Vertex_index to) {
CGALMesh::Halfedge_index hi = result.halfedge(fi);
for (; result.target(hi) != to; hi = result.next(hi));
assert(result.source(hi) == from);
assert(result.target(hi) == to);
return hi;
};
auto fi = out.add_face(indices[i], indices[i + 1], indices[j]);
glyph_id_edge[out.edge(find_edge(fi, indices[i], indices[i + 1]))] = glid;
glyph_id_face[fi] = ++ glid;
glyph_id_edge[out.edge(find_edge(fi, indices[i + 1], indices[j]))] = ++ glid;
glyph_id_face[out.add_face(indices[j], indices[i + 1], indices[j + 1])] = ++ glid;
++ glid;
auto fi = result.add_face(indices[i], indices[i + 1], indices[j]);
edge_shape_map[result.edge(find_edge(fi, indices[i], indices[i + 1]))] =
IntersectingElemnt{vertex_index, contour_index, IntersectingElemnt::Type::edge_1};
face_shape_map[fi] =
IntersectingElemnt{vertex_index, contour_index, IntersectingElemnt::Type::face_1};
edge_shape_map[result.edge(find_edge(fi, indices[i + 1], indices[j]))] =
IntersectingElemnt{vertex_index, contour_index, IntersectingElemnt::Type::edge_2};
face_shape_map[result.add_face(indices[j], indices[i + 1], indices[j + 1])] =
IntersectingElemnt{vertex_index, contour_index, IntersectingElemnt::Type::face_2};
++contour_index;
}
};
size_t count_point = count_points(glyph);
out.reserve(out.number_of_vertices() + 2 * count_point, out.number_of_edges() + 4 * count_point, out.number_of_faces() + 2 * count_point);
size_t count_point = count_points(shape);
result.reserve(result.number_of_vertices() + 2 * count_point, result.number_of_edges() + 4 * count_point, result.number_of_faces() + 2 * count_point);
for (const ExPolygon &expolygon : glyph) {
int32_t idx_contour = &expolygon - &glyph.front();
insert_contour(expolygon.contour, idx_contour, 0);
for (const Polygon& hole : expolygon.holes)
insert_contour(hole, idx_contour, 1 + (&hole - &expolygon.holes.front()));
}
// Identify polygon
// (contour_id > 0) are holes
size_t contour_id = 0;
insert_contour(shape.contour, shape_id, contour_id++);
for (const Polygon& hole : shape.holes)
insert_contour(hole, shape_id, contour_id++);
return result;
}
}
@ -411,10 +518,180 @@ bool its_write_obj(const indexed_triangle_set& its, const std::vector<Vec3f> &co
return true;
}
/// <summary>
/// Merge one triangle mesh to another
/// Added triangle set will allive
/// </summary>
/// <param name="its">IN / OUT triangle mesh</param>
/// <param name="its_add">IN triangle mesh</param>
void its_append(indexed_triangle_set &its, const indexed_triangle_set &its_add)
{
if (its.empty()) {
its = its_add; // copy
return;
}
auto &verts = its.vertices;
size_t verts_size = verts.size();
verts.reserve(verts_size + its_add.vertices.size());
append(verts, its_add.vertices);
auto &idxs = its.indices;
idxs.reserve(idxs.size() + its_add.indices.size());
// increase face indices
int offset = static_cast<int>(verts_size);
for (auto face : its_add.indices) {
for (int i = 0; i < 3; ++i) face[i] += offset;
idxs.emplace_back(face);
}
}
/// <summary>
/// Merge one triangle mesh to another
/// Added triangle set will be consumed
/// </summary>
/// <param name="its">IN/OUT triangle mesh</param>
/// <param name="its_add">Triangle mesh (will be consumed)</param>
void its_append(indexed_triangle_set &its, indexed_triangle_set &&its_add)
{
if (its.empty()) {
its = std::move(its_add);
return;
}
auto &verts = its.vertices;
size_t verts_size = verts.size();
append(verts, std::move(its_add.vertices));
// increase face indices
int offset = static_cast<int>(verts_size);
for (auto &face : its_add.indices)
for (int i = 0; i < 3; ++i) face[i] += offset;
append(its.indices, std::move(its_add.indices));
}
//// 1 ////
// Question store(1) Or calculate on demand(2) ??
// (1) type: vector <vector<vertex indices>>
// (1) Needs recalculation when merge and propagation togewther with its
// (2) Could appear surface mistakes(need calc - all half edges)
// (2) NO need of trace cut outline and connect it with letter conture points
/// <summary>
/// Cut surface shape from source model
/// </summary>
/// <param name="source">Input source mesh</param>
/// <param name="shape">Input 2d shape to cut from surface</param>
/// <param name="projection">Define transformation from 2d to 3d</param>
/// <returns>Cutted surface, Its do not represent Volume</returns>
indexed_triangle_set cut_shape(const indexed_triangle_set &source,
const ExPolygon &shape,
const Emboss::IProject &projection)
{
throw std::exception("NOT implemented yet");
return {};
}
/// <summary>
/// Cut surface shape from source model
/// </summary>
/// <param name="source">Input source mesh</param>
/// <param name="shapes">Input 2d shape to cut from surface</param>
/// <param name="projection">Define transformation from 2d to 3d</param>
/// <returns>Cutted surface, Its do not represent Volume</returns>
indexed_triangle_set cut_shape(const indexed_triangle_set &source,
const ExPolygons &shapes,
const Emboss::IProject &projection)
{
indexed_triangle_set result;
for (const ExPolygon &shape : shapes)
its_merge(result, cut_shape(source, shape, projection));
return result;
}
/// <summary>
/// Represents cutted surface from object
/// Extend index triangle set by outlines
/// </summary>
struct SurfaceCut : public indexed_triangle_set
{
using Index = unsigned int;
// cutted surface
indexed_triangle_set mesh;
// list of circulated open surface
std::vector<std::vector<Index>> cut;
};
/// <summary>
/// Merge two surface cuts together
/// Added surface cut will be consumed
/// </summary>
/// <param name="sc">Surface cut to extend</param>
/// <param name="sc_add">Surface cut to consume</param>
void append(SurfaceCut &sc, SurfaceCut &&sc_add)
{
if (sc.empty()) {
sc = std::move(sc_add);
return;
}
if (!sc_add.cut.empty()) {
SurfaceCut::Index offset =
static_cast<SurfaceCut::Index>(sc.vertices.size());
size_t require = sc.cut.size() + sc_add.cut.size();
if (sc.cut.capacity() < require) sc.cut.reserve(require);
for (std::vector<SurfaceCut::Index> &cut : sc_add.cut)
for (SurfaceCut::Index &i : cut) i += offset;
append(sc.cut, std::move(sc_add.cut));
}
its_append(sc, std::move(sc_add));
}
using MyMesh = Slic3r::MeshBoolean::cgal2::CGALMesh;
/// <summary>
/// Cut surface shape from model
/// </summary>
/// <param name="model">Mesh to cut</param>
/// <param name="shape">Shape to cut from model</param>
/// <param name="projection">Define transformation from 2d shape to 3d</param>
/// <returns>Cutted surface from model</returns>
SurfaceCut cut_surface(const MyMesh &model,
const ExPolygon &shape,
const Emboss::IProject &projection)
{
SurfaceCut result;
return result;
}
/// <summary>
/// Cut surface shape from model
/// </summary>
/// <param name="model">Mesh to cut</param>
/// <param name="shapes">Multi shapes to cut from model</param>
/// <param name="projection">Define transformation from 2d shape to 3d</param>
/// <returns>Cutted surface from model</returns>
SurfaceCut cut_surface(const indexed_triangle_set &model,
const ExPolygons &shapes,
const Emboss::IProject &projection)
{
SurfaceCut result;
//for (const ExPolygon& shape : shapes)
// append(result, cut_surface(model, shape, projection));
return result;
}
// First Idea //// 1 ////
// Use source model to modify ONLY surface of text ModelVolume
// Second Idea
// Store original its inside of text configuration[optional]
// Cause problem with next editation of object -> cut, simplify, Netfabb, Hollow, ...(transform original vertices)
TEST_CASE("Emboss extrude cut", "[Emboss-Cut]")
{
std::string font_path = get_font_filepath();
char letter = '%';
char letter = '$';
float flatness = 2.;
auto font = Emboss::create_font_file(font_path.c_str());
@ -441,55 +718,72 @@ TEST_CASE("Emboss extrude cut", "[Emboss-Cut]")
its_translate(cube, Vec3f(49 - 25, -10 - 25, 2.5));
auto cube2 = cube;
// its_translate(cube2, Vec3f(0, 0, 40));
its_translate(cube2, Vec3f(0, -40, 40));
for (auto &face : cube2.indices)
for (int i = 0; i < 3; ++ i)
face(i) += int(cube.vertices.size());
append(cube.vertices, cube2.vertices);
append(cube.indices, cube2.indices);
its_translate(cube2, Vec3f(100, -40, 40));
its_append(cube, std::move(cube2));
MeshBoolean::cgal2::CGALMesh cgalcube, cgaltext;
auto object_face_source_id = cgalcube.add_property_map<MeshBoolean::cgal2::CGALMesh::Face_index, int32_t>("f:object_face_source_id").first;
MeshBoolean::cgal2::triangle_mesh_to_cgal(cube.vertices, cube.indices, cgalcube, object_face_source_id);
//cube = its_make_sphere(350., 1.);
//for (auto &face : cube2.indices)
// for (int i = 0; i < 3; ++ i)
// face(i) += int(cube.vertices.size());
//append(cube.vertices, cube2.vertices);
//append(cube.indices, cube2.indices);
auto edge_glyph_id = cgaltext.add_property_map<MeshBoolean::cgal2::CGALMesh::Edge_index, GlyphID>("e:glyph_id").first;
auto face_glyph_id = cgaltext.add_property_map<MeshBoolean::cgal2::CGALMesh::Face_index, GlyphID>("f:glyph_id").first;
auto vertex_glyph_id = cgalcube.add_property_map<MeshBoolean::cgal2::CGALMesh::Vertex_index, GlyphID>("v:glyph_id").first;
std::vector<GlyphContour> glyph_contours;
using MyMesh = Slic3r::MeshBoolean::cgal2::CGALMesh;
// name of CGAL property map for store source object face id - index into its.indices
std::string face_map_name = "f:object_face_source_id";
// identify glyph for intersected vertex
std::string vert_shape_map_name = "v:glyph_id";
MyMesh cgalcube = MeshBoolean::cgal2::to_cgal(cube, face_map_name);
auto& face_map = cgalcube.property_map<MyMesh::Face_index, int32_t>(face_map_name).first;
auto& vert_shape_map = cgalcube.add_property_map<MyMesh::Vertex_index, IntersectingElemnt>(vert_shape_map_name).first;
MeshBoolean::cgal2::glyph2model(shape, 0, projection, cgaltext, glyph_contours, edge_glyph_id, face_glyph_id);
std::string edge_shape_map_name = "e:glyph_id";
std::string face_shape_map_name = "f:glyph_id";
std::vector<ShapesVertexId> glyph_contours;
//std::vector<MyMesh> cgalShapes;
//cgalShapes.reserve(shape.size());
//for (const ExPolygon &expoly : shape) {
// size_t index = &expoly - &shape.front();
// cgalShapes
//}
MyMesh cgaltext = MeshBoolean::cgal2::to_cgal(shape[0], projection, 0, edge_shape_map_name, face_shape_map_name, glyph_contours);
auto& edge_shape_map = cgaltext.property_map<MyMesh::Edge_index, IntersectingElemnt>(edge_shape_map_name).first;
auto& face_shape_map = cgaltext.property_map<MyMesh::Face_index, IntersectingElemnt>(face_shape_map_name).first;
//MeshBoolean::cgal2::glyph2model(shape, 0, projection, cgaltext, glyph_contours, edge_glyph_map, face_glyph_map);
struct Visitor {
using TriangleMesh = Slic3r::MeshBoolean::cgal2::CGALMesh;
const TriangleMesh &object;
const TriangleMesh &glyphs;
// const std::vector<GlyphContour> &glyph_contours;
const MyMesh &object;
const MyMesh &glyphs;
// Properties of the glyphs mesh:
TriangleMesh::Property_map<CGAL::SM_Edge_index, GlyphID> glyph_id_edge;
TriangleMesh::Property_map<CGAL::SM_Face_index, GlyphID> glyph_id_face;
MyMesh::Property_map<CGAL::SM_Edge_index, IntersectingElemnt> glyph_id_edge;
MyMesh::Property_map<CGAL::SM_Face_index, IntersectingElemnt> glyph_id_face;
// Properties of the object mesh.
TriangleMesh::Property_map<CGAL::SM_Face_index, int32_t> object_face_source_id;
TriangleMesh::Property_map<CGAL::SM_Vertex_index, GlyphID> object_vertex_glyph_id;
MyMesh::Property_map<CGAL::SM_Face_index, int32_t> object_face_source_id;
MyMesh::Property_map<CGAL::SM_Vertex_index, IntersectingElemnt> object_vertex_glyph_id;
typedef boost::graph_traits<TriangleMesh> GT;
typedef boost::graph_traits<MyMesh> GT;
typedef typename GT::face_descriptor face_descriptor;
typedef typename GT::halfedge_descriptor halfedge_descriptor;
typedef typename GT::vertex_descriptor vertex_descriptor;
int32_t source_face_id;
void before_subface_creations(face_descriptor f_old, TriangleMesh& mesh)
void before_subface_creations(face_descriptor f_old, MyMesh& mesh)
{
assert(&mesh == &object);
source_face_id = object_face_source_id[f_old];
}
void after_subface_created(face_descriptor f_new, TriangleMesh& mesh) {
void after_subface_created(face_descriptor f_new, MyMesh& mesh) {
assert(&mesh == &object);
object_face_source_id[f_new] = source_face_id;
}
std::vector<const GlyphID*> intersection_point_glyph;
std::vector<const IntersectingElemnt*> intersection_point_glyph;
// Intersecting an edge hh_edge from tm_edge with a face hh_face of tm_face.
void intersection_point_detected(
@ -505,9 +799,9 @@ TEST_CASE("Emboss extrude cut", "[Emboss-Cut]")
// Vertex, halfedge or face of tm_face intersected by hh_edge, see comment at simplex_dimension.
halfedge_descriptor hh_face,
// Mesh containing hh_edge
const TriangleMesh& tm_edge,
const MyMesh& tm_edge,
// Mesh containing hh_face
const TriangleMesh& tm_face,
const MyMesh& tm_face,
// source(hh_edge) is coplanar with face(hh_face).
bool edge_source_coplanar_with_face,
// target(hh_edge) is coplanar with face(hh_face).
@ -518,7 +812,7 @@ TEST_CASE("Emboss extrude cut", "[Emboss-Cut]")
intersection_point_glyph.resize(i_id + 1);
}
const GlyphID* glyph = nullptr;
const IntersectingElemnt* glyph = nullptr;
if (&tm_face == &glyphs) {
assert(&tm_edge == &object);
switch (simplex_dimension) {
@ -548,81 +842,96 @@ TEST_CASE("Emboss extrude cut", "[Emboss-Cut]")
intersection_point_glyph[i_id] = glyph;
}
void new_vertex_added(std::size_t node_id, vertex_descriptor vh, const TriangleMesh &tm)
void new_vertex_added(std::size_t node_id, vertex_descriptor vh, const MyMesh &tm)
{
assert(&tm == &object);
assert(node_id < intersection_point_glyph.size());
const GlyphID * glyph = intersection_point_glyph[node_id];
const IntersectingElemnt * glyph = intersection_point_glyph[node_id];
assert(glyph != nullptr);
assert(glyph->glyph_contour != -1);
assert(glyph->idx != -1);
object_vertex_glyph_id[vh] = glyph ? *glyph : GlyphID{};
assert(glyph->vertex_index != -1);
assert(glyph->point_index != -1);
object_vertex_glyph_id[vh] = glyph ? *glyph : IntersectingElemnt{};
}
void after_subface_creations(TriangleMesh&) {}
void before_subface_created(TriangleMesh&) {}
void before_edge_split(halfedge_descriptor /* h */, TriangleMesh& /* tm */) {}
void edge_split(halfedge_descriptor /* hnew */, TriangleMesh& /* tm */) {}
void after_subface_creations(MyMesh&) {}
void before_subface_created(MyMesh&) {}
void before_edge_split(halfedge_descriptor /* h */, MyMesh& /* tm */) {}
void edge_split(halfedge_descriptor /* hnew */, MyMesh& /* tm */) {}
void after_edge_split() {}
void add_retriangulation_edge(halfedge_descriptor /* h */, TriangleMesh& /* tm */) {}
void add_retriangulation_edge(halfedge_descriptor /* h */, MyMesh& /* tm */) {}
}
visitor { cgalcube, cgaltext, /* glyph_contours, */ edge_glyph_id, face_glyph_id, object_face_source_id, vertex_glyph_id};
visitor { cgalcube, cgaltext, edge_shape_map, face_shape_map, face_map, vert_shape_map};
// bool map for affected edge
auto ecm = get(CGAL::dynamic_edge_property_t<bool>(), cgalcube);
const auto& p = CGAL::Polygon_mesh_processing::parameters::throw_on_self_intersection(false).visitor(visitor).edge_is_constrained_map(ecm);
const auto& q = CGAL::Polygon_mesh_processing::parameters::visitor(visitor).do_not_modify(true);
const auto& q = CGAL::Polygon_mesh_processing::parameters::do_not_modify(true);
// CGAL::Polygon_mesh_processing::corefine(cgalcube, cgalcube2, p, p);
CGAL::Polygon_mesh_processing::corefine(cgalcube, cgaltext, p, q);
auto vertex_colors = cgalcube.add_property_map<MeshBoolean::cgal2::CGALMesh::Vertex_index, CGAL::Color>("v:color").first;
auto face_colors = cgalcube.add_property_map<MeshBoolean::cgal2::CGALMesh::Face_index, CGAL::Color>("f:color").first;
auto vertex_colors = cgalcube.add_property_map<MyMesh::Vertex_index, CGAL::Color>("v:color").first;
auto face_colors = cgalcube.add_property_map<MyMesh::Face_index, CGAL::Color>("f:color").first;
// separate by direction of extrusion
const CGAL::Color marked { 255, 0, 0 };
for (auto fi : cgalcube.faces()) {
CGAL::Color color(0, 255, 0);
auto hi_end = cgalcube.halfedge(fi);
auto hi = hi_end;
do {
if (get(ecm, cgalcube.edge(hi))) {
CGAL::SM_Edge_index edge_index = cgalcube.edge(hi);
// is edge new created - constrained?
if (get(ecm, edge_index)) {
// This face has a constrained edge.
GlyphID g1 = vertex_glyph_id[cgalcube.source(hi)];
GlyphID g2 = vertex_glyph_id[cgalcube.target(hi)];
assert(g1.glyph_contour != -1 && g1.glyph_contour == g2.glyph_contour);
assert(g1.idx != -1);
assert(g2.idx != -1);
const GlyphContour &glyph_contour = glyph_contours[g1.glyph_contour];
const auto &expoly = glyph->shape[glyph_contour.expoly];
const auto &contour = glyph_contour.contour == 0 ? expoly.contour : expoly.holes[glyph_contour.contour - 1];
IntersectingElemnt shape_from = vert_shape_map[cgalcube.source(hi)];
IntersectingElemnt shape_to = vert_shape_map[cgalcube.target(hi)];
assert(shape_from.vertex_index != -1 && shape_from.vertex_index == shape_to.vertex_index);
assert(shape_from.point_index != -1);
assert(shape_to.point_index != -1);
const ShapesVertexId &vertex_index = glyph_contours[shape_from.vertex_index];
const ExPolygon &expoly = shape[vertex_index.expoly];
const Polygon &contour = vertex_index.contour == 0 ? expoly.contour : expoly.holes[vertex_index.contour - 1];
bool inside = false;
int32_t i1 = g1.idx / 4;
int32_t i2 = g2.idx / 4;
if (g1.idx == g2.idx) {
// 4 type
// index into contour
int32_t i_from = shape_from.point_index;
int32_t i_to = shape_to.point_index;
if (i_from == i_to && shape_from.type == shape_to.type) {
// Crossing both object vertices with the same glyph face.
int type = g1.idx % 4;
assert(type == 1 || type == 3);
assert(shape_from.type == IntersectingElemnt::Type::face_1 ||
shape_from.type == IntersectingElemnt::Type::face_2 );
const auto& p = cgalcube.point(cgalcube.target(cgalcube.next(hi)));
int i = i1 * 2;
int j = (i1 + 1 == int(contour.size())) ? 0 : i + 2;
i += glyph_contour.vertex_base;
j += glyph_contour.vertex_base;
auto abcp = type == 1 ?
CGAL::orientation(cgaltext.point(CGAL::SM_Vertex_index(i)), cgaltext.point(CGAL::SM_Vertex_index(i + 1)), cgaltext.point(CGAL::SM_Vertex_index(j)), p) :
CGAL::orientation(cgaltext.point(CGAL::SM_Vertex_index(j)), cgaltext.point(CGAL::SM_Vertex_index(i + 1)), cgaltext.point(CGAL::SM_Vertex_index(j + 1)), p);
// Vertex index
int i = i_from * 2;
bool is_last = (i_from + 1 == int(contour.size()));
int j = is_last ? 0 : i + 2;
i += vertex_index.vertex_base;
j += vertex_index.vertex_base;
// triangle from side of shape
auto abcp = (shape_from.type == IntersectingElemnt::Type::face_1) ?
CGAL::orientation(
cgaltext.point(CGAL::SM_Vertex_index(i)),
cgaltext.point(CGAL::SM_Vertex_index(i + 1)),
cgaltext.point(CGAL::SM_Vertex_index(j)), p) :
CGAL::orientation(
cgaltext.point(CGAL::SM_Vertex_index(j)),
cgaltext.point(CGAL::SM_Vertex_index(i + 1)),
cgaltext.point(CGAL::SM_Vertex_index(j + 1)), p);
inside = abcp == CGAL::POSITIVE;
} else if (g1.idx < g2.idx) {
if (i1 == 0 && i2 + 1 == contour.size()) {
// cw
} else {
} else if (i_from < i_to || (i_from == i_to && shape_from.type < shape_to.type)) {
bool is_last = i_from == 0 && (i_to + 1) == contour.size();
if (!is_last)
inside = true;
}
} else {
if (i2 == 0 && i1 + 1 == contour.size()) {
} else { // i_from > i_to
bool is_last = i_to == 0 && (i_from + 1) == contour.size();
if (is_last)
inside = true;
std::swap(g1, g2);
std::swap(i1, i2);
}
}
if (inside) {
// Is this face oriented towards p or away from p?
const auto &a = cgalcube.point(cgalcube.source(hi));
@ -637,6 +946,7 @@ TEST_CASE("Emboss extrude cut", "[Emboss-Cut]")
}
break;
}
// next half edge index inside of face
hi = cgalcube.next(hi);
} while (hi != hi_end);
face_colors[fi] = color;
@ -645,7 +955,7 @@ TEST_CASE("Emboss extrude cut", "[Emboss-Cut]")
CGAL::IO::write_OFF("c:\\data\\temp\\corefined-0.off", cgalcube);
// Seed fill the other faces inside the region.
std::vector<MeshBoolean::cgal2::CGALMesh::Face_index> queue;
std::vector<MyMesh::Face_index> queue;
for (auto fi_seed : cgalcube.faces())
if (face_colors[fi_seed] != marked) {
// Is this face completely unconstrained?
@ -691,7 +1001,7 @@ TEST_CASE("Emboss extrude cut", "[Emboss-Cut]")
};
std::vector<FaceState> face_states(cube.indices.size(), FaceState::Unknown);
for (auto fi_seed : cgalcube.faces()) {
FaceState &state = face_states[object_face_source_id[fi_seed]];
FaceState &state = face_states[face_map[fi_seed]];
bool m = face_colors[fi_seed] == marked;
switch (state) {
case FaceState::Unknown:
@ -718,7 +1028,7 @@ TEST_CASE("Emboss extrude cut", "[Emboss-Cut]")
Vec3f extrude_dir { 0, 0, 5.f };
for (auto fi : cgalcube.faces()) {
const int32_t source_face_id = object_face_source_id[fi];
const int32_t source_face_id = face_map[fi];
const FaceState state = face_states[source_face_id];
assert(state == FaceState::Unmarked || state == FaceState::UnmarkedSplit || state == FaceState::UnmarkedEmitted ||
state == FaceState::Marked || state == FaceState::MarkedSplit);