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#include "Model.hpp"
#include "Geometry.hpp"
#include "Format/AMF.hpp"
#include "Format/OBJ.hpp"
#include "Format/PRUS.hpp"
#include "Format/STL.hpp"
#include "Format/3mf.hpp"
#include <float.h>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/filesystem.hpp>
#include <boost/nowide/iostream.hpp>
#include <boost/algorithm/string/replace.hpp>
#include "SVG.hpp"
#include <Eigen/Dense>
static const float UNIT_MATRIX[] = { 1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f };
namespace Slic3r {
unsigned int Model::s_auto_extruder_id = 1;
Model::Model(const Model &other)
{
// copy materials
for (const auto &m : other.materials)
this->add_material(m.first, *m.second);
// copy objects
this->objects.reserve(other.objects.size());
for (const ModelObject *o : other.objects)
this->add_object(*o, true);
}
Model& Model::operator=(Model other)
{
this->swap(other);
return *this;
}
void Model::swap(Model &other)
{
std::swap(this->materials, other.materials);
std::swap(this->objects, other.objects);
}
Model Model::read_from_file(const std::string &input_file, bool add_default_instances)
{
Model model;
bool result = false;
if (boost::algorithm::iends_with(input_file, ".stl"))
result = load_stl(input_file.c_str(), &model);
else if (boost::algorithm::iends_with(input_file, ".obj"))
result = load_obj(input_file.c_str(), &model);
else if (!boost::algorithm::iends_with(input_file, ".zip.amf") && (boost::algorithm::iends_with(input_file, ".amf") ||
boost::algorithm::iends_with(input_file, ".amf.xml")))
result = load_amf(input_file.c_str(), nullptr, &model);
#ifdef SLIC3R_PRUS
else if (boost::algorithm::iends_with(input_file, ".prusa"))
result = load_prus(input_file.c_str(), &model);
#endif /* SLIC3R_PRUS */
else
throw std::runtime_error("Unknown file format. Input file must have .stl, .obj, .amf(.xml) or .prusa extension.");
if (! result)
throw std::runtime_error("Loading of a model file failed.");
if (model.objects.empty())
throw std::runtime_error("The supplied file couldn't be read because it's empty");
for (ModelObject *o : model.objects)
o->input_file = input_file;
if (add_default_instances)
model.add_default_instances();
return model;
}
Model Model::read_from_archive(const std::string &input_file, PresetBundle* bundle, bool add_default_instances)
{
Model model;
bool result = false;
if (boost::algorithm::iends_with(input_file, ".3mf"))
result = load_3mf(input_file.c_str(), bundle, &model);
else if (boost::algorithm::iends_with(input_file, ".zip.amf"))
result = load_amf(input_file.c_str(), bundle, &model);
else
throw std::runtime_error("Unknown file format. Input file must have .3mf or .zip.amf extension.");
if (!result)
throw std::runtime_error("Loading of a model file failed.");
if (model.objects.empty())
throw std::runtime_error("The supplied file couldn't be read because it's empty");
for (ModelObject *o : model.objects)
{
if (boost::algorithm::iends_with(input_file, ".zip.amf"))
{
// we remove the .zip part of the extension to avoid it be added to filenames when exporting
o->input_file = boost::ireplace_last_copy(input_file, ".zip.", ".");
}
else
o->input_file = input_file;
}
if (add_default_instances)
model.add_default_instances();
return model;
}
ModelObject* Model::add_object()
{
this->objects.emplace_back(new ModelObject(this));
return this->objects.back();
}
ModelObject* Model::add_object(const char *name, const char *path, const TriangleMesh &mesh)
{
ModelObject* new_object = new ModelObject(this);
this->objects.push_back(new_object);
new_object->name = name;
new_object->input_file = path;
ModelVolume *new_volume = new_object->add_volume(mesh);
new_volume->name = name;
new_object->invalidate_bounding_box();
return new_object;
}
ModelObject* Model::add_object(const char *name, const char *path, TriangleMesh &&mesh)
{
ModelObject* new_object = new ModelObject(this);
this->objects.push_back(new_object);
new_object->name = name;
new_object->input_file = path;
ModelVolume *new_volume = new_object->add_volume(std::move(mesh));
new_volume->name = name;
new_object->invalidate_bounding_box();
return new_object;
}
ModelObject* Model::add_object(const ModelObject &other, bool copy_volumes)
{
ModelObject* new_object = new ModelObject(this, other, copy_volumes);
this->objects.push_back(new_object);
return new_object;
}
void Model::delete_object(size_t idx)
{
ModelObjectPtrs::iterator i = this->objects.begin() + idx;
delete *i;
this->objects.erase(i);
}
void Model::delete_object(ModelObject* object)
{
if (object == nullptr)
return;
for (ModelObjectPtrs::iterator it = objects.begin(); it != objects.end(); ++it)
{
ModelObject* obj = *it;
if (obj == object)
{
delete obj;
objects.erase(it);
return;
}
}
}
void Model::clear_objects()
{
for (ModelObject *o : this->objects)
delete o;
this->objects.clear();
}
void Model::delete_material(t_model_material_id material_id)
{
ModelMaterialMap::iterator i = this->materials.find(material_id);
if (i != this->materials.end()) {
delete i->second;
this->materials.erase(i);
}
}
void Model::clear_materials()
{
for (auto &m : this->materials)
delete m.second;
this->materials.clear();
}
ModelMaterial* Model::add_material(t_model_material_id material_id)
{
ModelMaterial* material = this->get_material(material_id);
if (material == nullptr)
material = this->materials[material_id] = new ModelMaterial(this);
return material;
}
ModelMaterial* Model::add_material(t_model_material_id material_id, const ModelMaterial &other)
{
// delete existing material if any
ModelMaterial* material = this->get_material(material_id);
delete material;
// set new material
material = new ModelMaterial(this, other);
this->materials[material_id] = material;
return material;
}
// makes sure all objects have at least one instance
bool Model::add_default_instances()
{
// apply a default position to all objects not having one
for (ModelObject *o : this->objects)
if (o->instances.empty())
o->add_instance();
return true;
}
// this returns the bounding box of the *transformed* instances
BoundingBoxf3 Model::bounding_box() const
{
BoundingBoxf3 bb;
for (ModelObject *o : this->objects)
bb.merge(o->bounding_box());
return bb;
}
void Model::center_instances_around_point(const Pointf &point)
{
// BoundingBoxf3 bb = this->bounding_box();
BoundingBoxf3 bb;
for (ModelObject *o : this->objects)
for (size_t i = 0; i < o->instances.size(); ++ i)
bb.merge(o->instance_bounding_box(i, false));
Sizef3 size = bb.size();
coordf_t shift_x = -bb.min.x + point.x - size.x/2;
coordf_t shift_y = -bb.min.y + point.y - size.y/2;
for (ModelObject *o : this->objects) {
for (ModelInstance *i : o->instances)
i->offset.translate(shift_x, shift_y);
o->invalidate_bounding_box();
}
}
// flattens everything to a single mesh
TriangleMesh Model::mesh() const
{
TriangleMesh mesh;
for (const ModelObject *o : this->objects)
mesh.merge(o->mesh());
return mesh;
}
static bool _arrange(const Pointfs &sizes, coordf_t dist, const BoundingBoxf* bb, Pointfs &out)
{
if (sizes.empty())
// return if the list is empty or the following call to BoundingBoxf constructor will lead to a crash
return true;
// we supply unscaled data to arrange()
bool result = Slic3r::Geometry::arrange(
sizes.size(), // number of parts
BoundingBoxf(sizes).max, // width and height of a single cell
dist, // distance between cells
bb, // bounding box of the area to fill
out // output positions
);
if (!result && bb != nullptr) {
// Try to arrange again ignoring bb
result = Slic3r::Geometry::arrange(
sizes.size(), // number of parts
BoundingBoxf(sizes).max, // width and height of a single cell
dist, // distance between cells
nullptr, // bounding box of the area to fill
out // output positions
);
}
return result;
}
/* arrange objects preserving their instance count
but altering their instance positions */
bool Model::arrange_objects(coordf_t dist, const BoundingBoxf* bb)
{
// get the (transformed) size of each instance so that we take
// into account their different transformations when packing
Pointfs instance_sizes;
Pointfs instance_centers;
for (const ModelObject *o : this->objects)
for (size_t i = 0; i < o->instances.size(); ++ i) {
// an accurate snug bounding box around the transformed mesh.
BoundingBoxf3 bbox(o->instance_bounding_box(i, true));
instance_sizes.push_back(bbox.size());
instance_centers.push_back(bbox.center());
}
Pointfs positions;
if (! _arrange(instance_sizes, dist, bb, positions))
return false;
size_t idx = 0;
for (ModelObject *o : this->objects) {
for (ModelInstance *i : o->instances) {
i->offset = positions[idx] - instance_centers[idx];
++ idx;
}
o->invalidate_bounding_box();
}
return true;
}
// Duplicate the entire model preserving instance relative positions.
void Model::duplicate(size_t copies_num, coordf_t dist, const BoundingBoxf* bb)
{
Pointfs model_sizes(copies_num-1, this->bounding_box().size());
Pointfs positions;
if (! _arrange(model_sizes, dist, bb, positions))
CONFESS("Cannot duplicate part as the resulting objects would not fit on the print bed.\n");
// note that this will leave the object count unaltered
for (ModelObject *o : this->objects) {
// make a copy of the pointers in order to avoid recursion when appending their copies
ModelInstancePtrs instances = o->instances;
for (const ModelInstance *i : instances) {
for (const Pointf &pos : positions) {
ModelInstance *instance = o->add_instance(*i);
instance->offset.translate(pos);
}
}
o->invalidate_bounding_box();
}
}
/* this will append more instances to each object
and then automatically rearrange everything */
void Model::duplicate_objects(size_t copies_num, coordf_t dist, const BoundingBoxf* bb)
{
for (ModelObject *o : this->objects) {
// make a copy of the pointers in order to avoid recursion when appending their copies
ModelInstancePtrs instances = o->instances;
for (const ModelInstance *i : instances)
for (size_t k = 2; k <= copies_num; ++ k)
o->add_instance(*i);
}
this->arrange_objects(dist, bb);
}
void Model::duplicate_objects_grid(size_t x, size_t y, coordf_t dist)
{
if (this->objects.size() > 1) throw "Grid duplication is not supported with multiple objects";
if (this->objects.empty()) throw "No objects!";
ModelObject* object = this->objects.front();
object->clear_instances();
Sizef3 size = object->bounding_box().size();
for (size_t x_copy = 1; x_copy <= x; ++x_copy) {
for (size_t y_copy = 1; y_copy <= y; ++y_copy) {
ModelInstance* instance = object->add_instance();
instance->offset.x = (size.x + dist) * (x_copy-1);
instance->offset.y = (size.y + dist) * (y_copy-1);
}
}
}
bool Model::looks_like_multipart_object() const
{
if (this->objects.size() <= 1)
return false;
double zmin = std::numeric_limits<double>::max();
for (const ModelObject *obj : this->objects) {
if (obj->volumes.size() > 1 || obj->config.keys().size() > 1)
return false;
for (const ModelVolume *vol : obj->volumes) {
double zmin_this = vol->mesh.bounding_box().min.z;
if (zmin == std::numeric_limits<double>::max())
zmin = zmin_this;
else if (std::abs(zmin - zmin_this) > EPSILON)
// The volumes don't share zmin.
return true;
}
}
return false;
}
void Model::convert_multipart_object(unsigned int max_extruders)
{
if (this->objects.empty())
return;
ModelObject* object = new ModelObject(this);
object->input_file = this->objects.front()->input_file;
reset_auto_extruder_id();
for (const ModelObject* o : this->objects)
for (const ModelVolume* v : o->volumes)
{
ModelVolume* new_v = object->add_volume(*v);
if (new_v != nullptr)
{
new_v->name = o->name;
new_v->config.set_deserialize("extruder", get_auto_extruder_id_as_string(max_extruders));
}
}
for (const ModelInstance* i : this->objects.front()->instances)
object->add_instance(*i);
this->clear_objects();
this->objects.push_back(object);
}
void Model::adjust_min_z()
{
if (objects.empty())
return;
if (bounding_box().min.z < 0.0)
{
for (ModelObject* obj : objects)
{
if (obj != nullptr)
{
coordf_t obj_min_z = obj->bounding_box().min.z;
if (obj_min_z < 0.0)
obj->translate(0.0, 0.0, -obj_min_z);
}
}
}
}
unsigned int Model::get_auto_extruder_id(unsigned int max_extruders)
{
unsigned int id = s_auto_extruder_id;
if (id > max_extruders) {
// The current counter is invalid, likely due to switching the printer profiles
// to a profile with a lower number of extruders.
reset_auto_extruder_id();
id = s_auto_extruder_id;
} else if (++s_auto_extruder_id > max_extruders) {
reset_auto_extruder_id();
}
return id;
}
std::string Model::get_auto_extruder_id_as_string(unsigned int max_extruders)
{
char str_extruder[64];
sprintf(str_extruder, "%ud", get_auto_extruder_id(max_extruders));
return str_extruder;
}
void Model::reset_auto_extruder_id()
{
s_auto_extruder_id = 1;
}
ModelObject::ModelObject(Model *model, const ModelObject &other, bool copy_volumes) :
name(other.name),
input_file(other.input_file),
instances(),
volumes(),
config(other.config),
layer_height_ranges(other.layer_height_ranges),
layer_height_profile(other.layer_height_profile),
layer_height_profile_valid(other.layer_height_profile_valid),
origin_translation(other.origin_translation),
m_bounding_box(other.m_bounding_box),
m_bounding_box_valid(other.m_bounding_box_valid),
m_model(model)
{
if (copy_volumes) {
this->volumes.reserve(other.volumes.size());
for (ModelVolumePtrs::const_iterator i = other.volumes.begin(); i != other.volumes.end(); ++i)
this->add_volume(**i);
}
this->instances.reserve(other.instances.size());
for (ModelInstancePtrs::const_iterator i = other.instances.begin(); i != other.instances.end(); ++i)
this->add_instance(**i);
}
ModelObject& ModelObject::operator=(ModelObject other)
{
this->swap(other);
return *this;
}
void ModelObject::swap(ModelObject &other)
{
std::swap(this->input_file, other.input_file);
std::swap(this->instances, other.instances);
std::swap(this->volumes, other.volumes);
std::swap(this->config, other.config);
std::swap(this->layer_height_ranges, other.layer_height_ranges);
std::swap(this->layer_height_profile, other.layer_height_profile);
std::swap(this->layer_height_profile_valid, other.layer_height_profile_valid);
std::swap(this->origin_translation, other.origin_translation);
std::swap(m_bounding_box, other.m_bounding_box);
std::swap(m_bounding_box_valid, other.m_bounding_box_valid);
}
ModelObject::~ModelObject()
{
this->clear_volumes();
this->clear_instances();
}
ModelVolume* ModelObject::add_volume(const TriangleMesh &mesh)
{
ModelVolume* v = new ModelVolume(this, mesh);
this->volumes.push_back(v);
this->invalidate_bounding_box();
return v;
}
ModelVolume* ModelObject::add_volume(TriangleMesh &&mesh)
{
ModelVolume* v = new ModelVolume(this, std::move(mesh));
this->volumes.push_back(v);
this->invalidate_bounding_box();
return v;
}
ModelVolume* ModelObject::add_volume(const ModelVolume &other)
{
ModelVolume* v = new ModelVolume(this, other);
this->volumes.push_back(v);
this->invalidate_bounding_box();
return v;
}
void ModelObject::delete_volume(size_t idx)
{
ModelVolumePtrs::iterator i = this->volumes.begin() + idx;
delete *i;
this->volumes.erase(i);
this->invalidate_bounding_box();
}
void ModelObject::clear_volumes()
{
for (ModelVolume *v : this->volumes)
delete v;
this->volumes.clear();
this->invalidate_bounding_box();
}
ModelInstance* ModelObject::add_instance()
{
ModelInstance* i = new ModelInstance(this);
this->instances.push_back(i);
this->invalidate_bounding_box();
return i;
}
ModelInstance* ModelObject::add_instance(const ModelInstance &other)
{
ModelInstance* i = new ModelInstance(this, other);
this->instances.push_back(i);
this->invalidate_bounding_box();
return i;
}
void ModelObject::delete_instance(size_t idx)
{
ModelInstancePtrs::iterator i = this->instances.begin() + idx;
delete *i;
this->instances.erase(i);
this->invalidate_bounding_box();
}
void ModelObject::delete_last_instance()
{
this->delete_instance(this->instances.size() - 1);
}
void ModelObject::clear_instances()
{
for (ModelInstance *i : this->instances)
delete i;
this->instances.clear();
this->invalidate_bounding_box();
}
// Returns the bounding box of the transformed instances.
// This bounding box is approximate and not snug.
const BoundingBoxf3& ModelObject::bounding_box() const
{
if (! m_bounding_box_valid) {
BoundingBoxf3 raw_bbox;
for (const ModelVolume *v : this->volumes)
if (v->is_model_part())
// mesh.bounding_box() returns a cached value.
raw_bbox.merge(v->mesh.bounding_box());
BoundingBoxf3 bb;
for (const ModelInstance *i : this->instances)
bb.merge(i->transform_bounding_box(raw_bbox));
m_bounding_box = bb;
m_bounding_box_valid = true;
}
return m_bounding_box;
}
// A mesh containing all transformed instances of this object.
TriangleMesh ModelObject::mesh() const
{
TriangleMesh mesh;
TriangleMesh raw_mesh = this->raw_mesh();
for (const ModelInstance *i : this->instances) {
TriangleMesh m = raw_mesh;
i->transform_mesh(&m);
mesh.merge(m);
}
return mesh;
}
// Non-transformed (non-rotated, non-scaled, non-translated) sum of non-modifier object volumes.
// Currently used by ModelObject::mesh(), to calculate the 2D envelope for 2D platter
// and to display the object statistics at ModelObject::print_info().
TriangleMesh ModelObject::raw_mesh() const
{
TriangleMesh mesh;
for (const ModelVolume *v : this->volumes)
if (v->is_model_part())
mesh.merge(v->mesh);
return mesh;
}
// A transformed snug bounding box around the non-modifier object volumes, without the translation applied.
// This bounding box is only used for the actual slicing.
BoundingBoxf3 ModelObject::raw_bounding_box() const
{
BoundingBoxf3 bb;
for (const ModelVolume *v : this->volumes)
if (v->is_model_part()) {
if (this->instances.empty()) CONFESS("Can't call raw_bounding_box() with no instances");
bb.merge(this->instances.front()->transform_mesh_bounding_box(&v->mesh, true));
}
return bb;
}
// This returns an accurate snug bounding box of the transformed object instance, without the translation applied.
BoundingBoxf3 ModelObject::instance_bounding_box(size_t instance_idx, bool dont_translate) const
{
BoundingBoxf3 bb;
for (ModelVolume *v : this->volumes)
if (v->is_model_part())
bb.merge(this->instances[instance_idx]->transform_mesh_bounding_box(&v->mesh, dont_translate));
return bb;
}
void ModelObject::center_around_origin()
{
// calculate the displacements needed to
// center this object around the origin
BoundingBoxf3 bb;
for (ModelVolume *v : this->volumes)
if (v->is_model_part())
bb.merge(v->mesh.bounding_box());
// first align to origin on XYZ
Vectorf3 vector(-bb.min.x, -bb.min.y, -bb.min.z);
// then center it on XY
Sizef3 size = bb.size();
vector.x -= size.x/2;
vector.y -= size.y/2;
this->translate(vector);
this->origin_translation.translate(vector);
if (!this->instances.empty()) {
for (ModelInstance *i : this->instances) {
// apply rotation and scaling to vector as well before translating instance,
// in order to leave final position unaltered
Vectorf3 v = vector.negative();
v.rotate(i->rotation);
v.scale(i->scaling_factor);
i->offset.translate(v.x, v.y);
}
this->invalidate_bounding_box();
}
}
void ModelObject::translate(coordf_t x, coordf_t y, coordf_t z)
{
for (ModelVolume *v : this->volumes)
{
v->mesh.translate(float(x), float(y), float(z));
v->m_convex_hull.translate(float(x), float(y), float(z));
}
if (m_bounding_box_valid)
m_bounding_box.translate(x, y, z);
}
void ModelObject::scale(const Pointf3 &versor)
{
for (ModelVolume *v : this->volumes)
{
v->mesh.scale(versor);
v->m_convex_hull.scale(versor);
}
// reset origin translation since it doesn't make sense anymore
this->origin_translation = Pointf3(0,0,0);
this->invalidate_bounding_box();
}
void ModelObject::rotate(float angle, const Pointf3& axis)
{
for (ModelVolume *v : this->volumes)
{
v->mesh.rotate(angle, axis);
v->m_convex_hull.rotate(angle, axis);
}
center_around_origin();
this->origin_translation = Pointf3(0, 0, 0);
this->invalidate_bounding_box();
}
void ModelObject::transform(const float* matrix3x4)
{
if (matrix3x4 == nullptr)
return;
for (ModelVolume* v : volumes)
{
v->mesh.transform(matrix3x4);
v->m_convex_hull.transform(matrix3x4);
}
origin_translation = Pointf3(0.0, 0.0, 0.0);
invalidate_bounding_box();
}
void ModelObject::mirror(const Axis &axis)
{
for (ModelVolume *v : this->volumes)
{
v->mesh.mirror(axis);
v->m_convex_hull.mirror(axis);
}
this->origin_translation = Pointf3(0, 0, 0);
this->invalidate_bounding_box();
}
size_t ModelObject::materials_count() const
{
std::set<t_model_material_id> material_ids;
for (const ModelVolume *v : this->volumes)
material_ids.insert(v->material_id());
return material_ids.size();
}
size_t ModelObject::facets_count() const
{
size_t num = 0;
for (const ModelVolume *v : this->volumes)
if (v->is_model_part())
num += v->mesh.stl.stats.number_of_facets;
return num;
}
bool ModelObject::needed_repair() const
{
for (const ModelVolume *v : this->volumes)
if (v->is_model_part() && v->mesh.needed_repair())
return true;
return false;
}
void ModelObject::cut(coordf_t z, Model* model) const
{
// clone this one to duplicate instances, materials etc.
ModelObject* upper = model->add_object(*this);
ModelObject* lower = model->add_object(*this);
upper->clear_volumes();
lower->clear_volumes();
upper->input_file = "";
lower->input_file = "";
for (ModelVolume *volume : this->volumes) {
if (! volume->is_model_part()) {
// don't cut modifiers
upper->add_volume(*volume);
lower->add_volume(*volume);
} else {
TriangleMesh upper_mesh, lower_mesh;
TriangleMeshSlicer tms(&volume->mesh);
tms.cut(z, &upper_mesh, &lower_mesh);
upper_mesh.repair();
lower_mesh.repair();
upper_mesh.reset_repair_stats();
lower_mesh.reset_repair_stats();
if (upper_mesh.facets_count() > 0) {
ModelVolume* vol = upper->add_volume(upper_mesh);
vol->name = volume->name;
vol->config = volume->config;
vol->set_material(volume->material_id(), *volume->material());
}
if (lower_mesh.facets_count() > 0) {
ModelVolume* vol = lower->add_volume(lower_mesh);
vol->name = volume->name;
vol->config = volume->config;
vol->set_material(volume->material_id(), *volume->material());
}
}
}
}
void ModelObject::split(ModelObjectPtrs* new_objects)
{
if (this->volumes.size() > 1) {
// We can't split meshes if there's more than one volume, because
// we can't group the resulting meshes by object afterwards
new_objects->push_back(this);
return;
}
ModelVolume* volume = this->volumes.front();
TriangleMeshPtrs meshptrs = volume->mesh.split();
for (TriangleMesh *mesh : meshptrs) {
// Snap the mesh to Z=0.
float z0 = FLT_MAX;
mesh->repair();
ModelObject* new_object = m_model->add_object(*this, false);
new_object->input_file = "";
ModelVolume* new_volume = new_object->add_volume(*mesh);
new_volume->name = volume->name;
new_volume->config = volume->config;
new_volume->set_type(volume->type());
new_volume->material_id(volume->material_id());
new_objects->push_back(new_object);
delete mesh;
}
return;
}
void ModelObject::check_instances_print_volume_state(const BoundingBoxf3& print_volume)
{
for (const ModelVolume* vol : this->volumes)
{
if (vol->is_model_part())
{
for (ModelInstance* inst : this->instances)
{
std::vector<float> world_mat(UNIT_MATRIX, std::end(UNIT_MATRIX));
Eigen::Transform<float, 3, Eigen::Affine> m = Eigen::Transform<float, 3, Eigen::Affine>::Identity();
m.translate(Eigen::Vector3f((float)inst->offset.x, (float)inst->offset.y, 0.0f));
m.rotate(Eigen::AngleAxisf(inst->rotation, Eigen::Vector3f::UnitZ()));
m.scale(inst->scaling_factor);
::memcpy((void*)world_mat.data(), (const void*)m.data(), 16 * sizeof(float));
BoundingBoxf3 bb = vol->get_convex_hull().transformed_bounding_box(world_mat);
if (print_volume.contains(bb))
inst->print_volume_state = ModelInstance::PVS_Inside;
else if (print_volume.intersects(bb))
inst->print_volume_state = ModelInstance::PVS_Partly_Outside;
else
inst->print_volume_state = ModelInstance::PVS_Fully_Outside;
}
}
}
}
void ModelObject::print_info() const
{
using namespace std;
cout << fixed;
boost::nowide::cout << "[" << boost::filesystem::path(this->input_file).filename().string() << "]" << endl;
TriangleMesh mesh = this->raw_mesh();
mesh.check_topology();
BoundingBoxf3 bb = mesh.bounding_box();
Sizef3 size = bb.size();
cout << "size_x = " << size.x << endl;
cout << "size_y = " << size.y << endl;
cout << "size_z = " << size.z << endl;
cout << "min_x = " << bb.min.x << endl;
cout << "min_y = " << bb.min.y << endl;
cout << "min_z = " << bb.min.z << endl;
cout << "max_x = " << bb.max.x << endl;
cout << "max_y = " << bb.max.y << endl;
cout << "max_z = " << bb.max.z << endl;
cout << "number_of_facets = " << mesh.stl.stats.number_of_facets << endl;
cout << "manifold = " << (mesh.is_manifold() ? "yes" : "no") << endl;
mesh.repair(); // this calculates number_of_parts
if (mesh.needed_repair()) {
mesh.repair();
if (mesh.stl.stats.degenerate_facets > 0)
cout << "degenerate_facets = " << mesh.stl.stats.degenerate_facets << endl;
if (mesh.stl.stats.edges_fixed > 0)
cout << "edges_fixed = " << mesh.stl.stats.edges_fixed << endl;
if (mesh.stl.stats.facets_removed > 0)
cout << "facets_removed = " << mesh.stl.stats.facets_removed << endl;
if (mesh.stl.stats.facets_added > 0)
cout << "facets_added = " << mesh.stl.stats.facets_added << endl;
if (mesh.stl.stats.facets_reversed > 0)
cout << "facets_reversed = " << mesh.stl.stats.facets_reversed << endl;
if (mesh.stl.stats.backwards_edges > 0)
cout << "backwards_edges = " << mesh.stl.stats.backwards_edges << endl;
}
cout << "number_of_parts = " << mesh.stl.stats.number_of_parts << endl;
cout << "volume = " << mesh.volume() << endl;
}
void ModelVolume::material_id(t_model_material_id material_id)
{
this->_material_id = material_id;
// ensure this->_material_id references an existing material
(void)this->object->get_model()->add_material(material_id);
}
ModelMaterial* ModelVolume::material() const
{
return this->object->get_model()->get_material(this->_material_id);
}
void ModelVolume::set_material(t_model_material_id material_id, const ModelMaterial &material)
{
this->_material_id = material_id;
(void)this->object->get_model()->add_material(material_id, material);
}
ModelMaterial* ModelVolume::assign_unique_material()
{
Model* model = this->get_object()->get_model();
// as material-id "0" is reserved by the AMF spec we start from 1
this->_material_id = 1 + model->materials.size(); // watchout for implicit cast
return model->add_material(this->_material_id);
}
void ModelVolume::calculate_convex_hull()
{
m_convex_hull = mesh.convex_hull_3d();
}
const TriangleMesh& ModelVolume::get_convex_hull() const
{
return m_convex_hull;
}
TriangleMesh& ModelVolume::get_convex_hull()
{
return m_convex_hull;
}
ModelVolume::Type ModelVolume::type_from_string(const std::string &s)
{
// Legacy support
if (s == "0")
return MODEL_PART;
if (s == "1")
return PARAMETER_MODIFIER;
// New type (supporting the support enforcers & blockers)
if (s == "ModelPart")
return MODEL_PART;
if (s == "ParameterModifier")
return PARAMETER_MODIFIER;
if (s == "SupportEnforcer")
return SUPPORT_ENFORCER;
if (s == "SupportBlocker")
return SUPPORT_BLOCKER;
}
std::string ModelVolume::type_to_string(const Type t)
{
switch (t) {
case MODEL_PART: return "ModelPart";
case PARAMETER_MODIFIER: return "ParameterModifier";
case SUPPORT_ENFORCER: return "SupportEnforcer";
case SUPPORT_BLOCKER: return "SupportBlocker";
default:
assert(false);
return "ModelPart";
}
}
// Split this volume, append the result to the object owning this volume.
// Return the number of volumes created from this one.
// This is useful to assign different materials to different volumes of an object.
size_t ModelVolume::split(unsigned int max_extruders)
{
TriangleMeshPtrs meshptrs = this->mesh.split();
if (meshptrs.size() <= 1) {
delete meshptrs.front();
return 1;
}
size_t idx = 0;
size_t ivolume = std::find(this->object->volumes.begin(), this->object->volumes.end(), this) - this->object->volumes.begin();
std::string name = this->name;
Model::reset_auto_extruder_id();
for (TriangleMesh *mesh : meshptrs) {
mesh->repair();
if (idx == 0)
this->mesh = std::move(*mesh);
else
this->object->volumes.insert(this->object->volumes.begin() + (++ ivolume), new ModelVolume(object, *this, std::move(*mesh)));
char str_idx[64];
sprintf(str_idx, "_%d", idx + 1);
this->object->volumes[ivolume]->name = name + str_idx;
this->object->volumes[ivolume]->config.set_deserialize("extruder", Model::get_auto_extruder_id_as_string(max_extruders));
delete mesh;
++ idx;
}
return idx;
}
void ModelInstance::transform_mesh(TriangleMesh* mesh, bool dont_translate) const
{
mesh->rotate_z(this->rotation); // rotate around mesh origin
mesh->scale(this->scaling_factor); // scale around mesh origin
if (!dont_translate)
mesh->translate(this->offset.x, this->offset.y, 0);
}
BoundingBoxf3 ModelInstance::transform_mesh_bounding_box(const TriangleMesh* mesh, bool dont_translate) const
{
// Rotate around mesh origin.
double c = cos(this->rotation);
double s = sin(this->rotation);
BoundingBoxf3 bbox;
for (int i = 0; i < mesh->stl.stats.number_of_facets; ++ i) {
const stl_facet &facet = mesh->stl.facet_start[i];
for (int j = 0; j < 3; ++ j) {
stl_vertex v = facet.vertex[j];
double xold = v.x;
double yold = v.y;
v.x = float(c * xold - s * yold);
v.y = float(s * xold + c * yold);
bbox.merge(Pointf3(v.x, v.y, v.z));
}
}
if (! empty(bbox)) {
// Scale the bounding box uniformly.
if (std::abs(this->scaling_factor - 1.) > EPSILON) {
bbox.min.x *= float(this->scaling_factor);
bbox.min.y *= float(this->scaling_factor);
bbox.min.z *= float(this->scaling_factor);
bbox.max.x *= float(this->scaling_factor);
bbox.max.y *= float(this->scaling_factor);
bbox.max.z *= float(this->scaling_factor);
}
// Translate the bounding box.
if (! dont_translate) {
bbox.min.x += float(this->offset.x);
bbox.min.y += float(this->offset.y);
bbox.max.x += float(this->offset.x);
bbox.max.y += float(this->offset.y);
}
}
return bbox;
}
BoundingBoxf3 ModelInstance::transform_bounding_box(const BoundingBoxf3 &bbox, bool dont_translate) const
{
Eigen::Transform<float, 3, Eigen::Affine> matrix = Eigen::Transform<float, 3, Eigen::Affine>::Identity();
if (!dont_translate)
matrix.translate(Eigen::Vector3f((float)offset.x, (float)offset.y, 0.0f));
matrix.rotate(Eigen::AngleAxisf(rotation, Eigen::Vector3f::UnitZ()));
matrix.scale(scaling_factor);
std::vector<float> m(16, 0.0f);
::memcpy((void*)m.data(), (const void*)matrix.data(), 16 * sizeof(float));
return bbox.transformed(m);
}
void ModelInstance::transform_polygon(Polygon* polygon) const
{
polygon->rotate(this->rotation); // rotate around polygon origin
polygon->scale(this->scaling_factor); // scale around polygon origin
}
}
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