Glassvision/IfcOpenShell
1
0
Fork 0
mirror of https://github.com/IfcOpenShell/IfcOpenShell.git synced 2026-08-17 10:59:17 +00:00
Code Issues Packages Projects Releases Wiki Activity

First push of a more all-round geometrical file conversion utility

Browse Source
This commit is contained in:
Thomas Krijnen
2013-03-24 10:48:39 +00:00
parent 852cb7d8c4
commit 5d4ff0b54a
20 changed files with 1330 additions and 264 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/ifcgeom/IfcGeomObjects.cpp
+127 -76
View File
@@ -51,8 +51,9 @@ bool weld_vertices = true;
bool convert_back_units = false;
bool use_faster_booleans = false;
bool disable_subtractions = false;
bool disable_triangulation = false;
int IfcGeomObjects::IfcMesh::addvert(const gp_XYZ& p) {
int IfcGeomObjects::IfcRepresentationTriangulation::addvert(const gp_XYZ& p) {
const float X = convert_back_units ? (float) (p.X() / IfcGeom::GetValue(IfcGeom::GV_LENGTH_UNIT)) : (float)p.X();
const float Y = convert_back_units ? (float) (p.Y() / IfcGeom::GetValue(IfcGeom::GV_LENGTH_UNIT)) : (float)p.Y();
const float Z = convert_back_units ? (float) (p.Z() / IfcGeom::GetValue(IfcGeom::GV_LENGTH_UNIT)) : (float)p.Z();
@@ -75,10 +76,10 @@ bool use_brep_data = false;
static IfcParse::IfcFile* ifc_file = 0;
IfcGeomObjects::IfcMesh::IfcMesh(int i, const IfcGeom::ShapeList& shapes) {
id = i;
if ( use_brep_data ) {
IfcGeomObjects::IfcRepresentationBrepData::IfcRepresentationBrepData(const IfcRepresentationShapeModel& shapes)
: id(shapes.getId())
{
try {
TopoDS_Compound compound;
BRep_Builder builder;
builder.MakeCompound(compound);
@@ -98,18 +99,25 @@ IfcGeomObjects::IfcMesh::IfcMesh(int i, const IfcGeom::ShapeList& shapes) {
std::stringstream sstream;
BRepTools::Write(compound,sstream);
brep_data = sstream.str();
} else
} catch(...) {
Logger::Message(Logger::LOG_ERROR,"Failed to serialize shape:",ifc_file->EntityById(id)->entity);
}
}
IfcGeomObjects::IfcRepresentationTriangulation::IfcRepresentationTriangulation(const IfcRepresentationShapeModel& shapes)
: id(shapes.getId())
{
for ( IfcGeom::ShapeList::const_iterator it = shapes.begin(); it != shapes.end(); ++ it ) {
const TopoDS_Shape& s = *(*it).second;
const gp_GTrsf& trsf = *(*it).first;
const TopoDS_Shape& s = *it->second;
const gp_GTrsf& trsf = *it->first;
// Triangulate the shape
try {
// BRepTools::Clean(s);
BRepMesh::Mesh(s, IfcGeom::GetValue(IfcGeom::GV_DEFLECTION_TOLERANCE));
} catch(...) {
Logger::Message(Logger::LOG_ERROR,"Failed to triangulate mesh:",ifc_file->EntityById(i)->entity);
Logger::Message(Logger::LOG_ERROR,"Failed to triangulate shape:",ifc_file->EntityById(id)->entity);
continue;
}
TopExp_Explorer exp;
@@ -193,46 +201,62 @@ IfcGeomObjects::IfcMesh::IfcMesh(int i, const IfcGeom::ShapeList& shapes) {
}
}
IfcGeomObjects::IfcObject::IfcObject(int my_id,
int p_id,
const std::string& n,
const std::string& t,
const std::string& g,
const gp_Trsf& trsf) {
IfcGeomObjects::IfcObject::IfcObject(
int id,
int parent_id,
const std::string& name,
const std::string& type,
const std::string& guid,
const gp_Trsf& trsf)
: id(id)
, parent_id(parent_id)
, name(name)
, type(type)
, guid(guid)
, trsf(trsf)
{
// Convert the gp_Trsf into a 4x3 Matrix
for( int i = 1; i < 5; ++ i )
for ( int j = 1; j < 4; ++ j )
matrix.push_back((float)trsf.Value(j,i));
id = my_id;
parent_id = p_id;
name = n;
type = t;
guid = g;
}
IfcGeomObjects::IfcGeomObject::IfcGeomObject(int my_id,
int p_id,
const std::string& n,
const std::string& t,
const std::string& g,
const gp_Trsf& trsf,
IfcMesh* m) : IfcObject(my_id,p_id,n,t,g,trsf) {
IfcGeomObjects::IfcGeomShapeModelObject::IfcGeomShapeModelObject(
int id,
int parent_id,
const std::string& name,
const std::string& type,
const std::string& guid,
const gp_Trsf& trsf,
IfcRepresentationShapeModel* shapes)
: IfcObject(id,parent_id,name,type,guid,trsf)
, mesh(shapes)
{}
mesh = m;
}
IfcGeomObjects::IfcGeomBrepDataObject::IfcGeomBrepDataObject(
const IfcGeomShapeModelObject& shape_model)
: IfcObject(shape_model)
, mesh(new IfcRepresentationBrepData(*shape_model.mesh))
{}
IfcGeomObjects::IfcGeomObject::IfcGeomObject(
const IfcGeomShapeModelObject& shape_model)
: IfcObject(shape_model)
, mesh(new IfcRepresentationTriangulation(*shape_model.mesh))
{}
// A container and iterator for IfcShapeRepresentations
Ifc2x3::IfcShapeRepresentation::list shapereps;
Ifc2x3::IfcShapeRepresentation::it outer;
Ifc2x3::IfcShapeRepresentation::it shaperep_iterator;
// The object is fetched beforehand to be positive an entity actually exists
IfcGeomObjects::IfcGeomObject* current_geom_obj;
IfcGeomObjects::IfcGeomObject* current_geom_obj = 0;
IfcGeomObjects::IfcGeomShapeModelObject* current_shape_model_obj = 0;
IfcGeomObjects::IfcGeomBrepDataObject* current_brep_data_obj = 0;
// A container and iterator for IfcBuildingElements for the current IfcShapeRepresentation referenced by *outer
// A container and iterator for IfcBuildingElements for the current IfcShapeRepresentation referenced by *shaperep_iterator
Ifc2x3::IfcProduct::list entities;
Ifc2x3::IfcProduct::it inner;
Ifc2x3::IfcProduct::it ifcproduct_iterator;
int done;
int total;
@@ -240,7 +264,7 @@ int total;
// Move the the next IfcShapeRepresentation
void _nextShape() {
entities.reset();
++ outer;
++ shaperep_iterator;
++ done;
}
@@ -289,17 +313,16 @@ int _getParentId(const Ifc2x3::IfcProduct::ptr ifc_product) {
return parent_id;
}
// Returns the current IfcGeomObject*
IfcGeomObjects::IfcGeomObject* _get() {
IfcGeomObjects::IfcGeomShapeModelObject* create_shape_model_for_next_entity() {
while ( true ) {
Ifc2x3::IfcShapeRepresentation::ptr shaperep;
// Have we reached the end of our list of representations?
if ( outer == shapereps->end() ) {
if ( shaperep_iterator == shapereps->end() ) {
shapereps.reset();
return 0;
}
shaperep = *outer;
shaperep = *shaperep_iterator;
// Has the list of IfcProducts for this representation been initialized?
if ( ! entities ) {
@@ -337,15 +360,15 @@ IfcGeomObjects::IfcGeomObject* _get() {
_nextShape();
continue;
}
inner = entities->begin();
ifcproduct_iterator = entities->begin();
}
// Have we reached the end of our list of IfcProducts?
if ( inner == entities->end() ) {
if ( ifcproduct_iterator == entities->end() ) {
_nextShape();
continue;
}
IfcGeomObjects::IfcMesh* shape;
IfcGeomObjects::IfcRepresentationShapeModel* shape;
IfcGeom::ShapeList shapes;
if ( !IfcGeom::convert_shapes(shaperep,shapes) ) {
@@ -353,7 +376,7 @@ IfcGeomObjects::IfcGeomObject* _get() {
continue;
}
Ifc2x3::IfcProduct::ptr ifc_product = *inner;
Ifc2x3::IfcProduct::ptr ifc_product = *ifcproduct_iterator;
int parent_id = -1;
try {
@@ -413,56 +436,74 @@ IfcGeomObjects::IfcGeomObject* _get() {
}
trsf = gp_Trsf();
}
shape = new IfcGeomObjects::IfcMesh(shaperep->entity->id(),opened_shapes);
for ( IfcGeom::ShapeList::const_iterator it = opened_shapes.begin(); it != opened_shapes.end(); ++ it ) {
shape = new IfcGeomObjects::IfcRepresentationShapeModel(shaperep->entity->id(),opened_shapes,true);
for ( IfcGeom::ShapeList::const_iterator it = shapes.begin(); it != shapes.end(); ++ it ) {
delete it->first;
delete it->second;
}
} else if ( use_world_coords ) {
for ( IfcGeom::ShapeList::const_iterator it = shapes.begin(); it != shapes.end(); ++ it ) {
it->first->PreMultiply(trsf);
}
trsf = gp_Trsf();
shape = new IfcGeomObjects::IfcMesh(shaperep->entity->id(),shapes);
shape = new IfcGeomObjects::IfcRepresentationShapeModel(shaperep->entity->id(),shapes);
} else {
shape = new IfcGeomObjects::IfcMesh(shaperep->entity->id(),shapes);
shape = new IfcGeomObjects::IfcRepresentationShapeModel(shaperep->entity->id(),shapes);
}
IfcGeomObjects::IfcGeomObject* geom_obj = new IfcGeomObjects::IfcGeomObject(ifc_product->entity->id(), parent_id, name,
return new IfcGeomObjects::IfcGeomShapeModelObject(ifc_product->entity->id(), parent_id, name,
Ifc2x3::Type::ToString(ifc_product->type()), guid, trsf, shape);
for ( IfcGeom::ShapeList::const_iterator it = shapes.begin(); it != shapes.end(); ++ it ) {
delete it->first;
}
return geom_obj;
}
}
bool IfcGeomObjects::Next() {
if ( current_geom_obj ) {
delete current_geom_obj->mesh;
delete current_geom_obj;
}
if ( entities ) {
++inner;
}
current_geom_obj = _get();
if ( ! current_geom_obj ) {
bool try_and_create_representations_for_current_entity() {
current_shape_model_obj = create_shape_model_for_next_entity();
if (current_shape_model_obj == 0) {
return false;
} else {
return true;
}
if (use_brep_data) {
current_brep_data_obj = new IfcGeomObjects::IfcGeomBrepDataObject(*current_shape_model_obj);
if (current_brep_data_obj == 0) {
return false;
}
}
if (!disable_triangulation) {
current_geom_obj = new IfcGeomObjects::IfcGeomObject(*current_shape_model_obj);
if (current_geom_obj == 0) {
return false;
}
}
return true;
}
bool IfcGeomObjects::Next() {
// Free all possible representations of the current geometrical entity
delete current_geom_obj;
delete current_brep_data_obj;
delete current_shape_model_obj;
current_geom_obj = 0;
current_brep_data_obj = 0;
current_shape_model_obj = 0;
// Increment the iterator over the list of products using the current
// shape representation
if (entities) {
++ifcproduct_iterator;
}
return try_and_create_representations_for_current_entity();
}
std::vector<IfcGeomObjects::IfcObject*> returned_objects;
bool IfcGeomObjects::CleanUp() {
// TODO: Correctly implement destructor for IfcFile
delete ifc_file;
IfcGeom::Cache::Purge();
for ( std::vector<IfcGeomObjects::IfcObject*>::const_iterator it = returned_objects.begin();
it != returned_objects.end();
++ it ) {
delete *it;
std::vector<IfcGeomObjects::IfcObject*>::const_iterator it;
for (it = returned_objects.begin(); it != returned_objects.end(); ++ it ) {
delete *it;
}
returned_objects.clear();
return true;
@@ -493,6 +534,12 @@ const IfcGeomObjects::IfcObject* IfcGeomObjects::GetObject(int id) {
const IfcGeomObjects::IfcGeomObject* IfcGeomObjects::Get() {
return current_geom_obj;
}
const IfcGeomObjects::IfcGeomShapeModelObject* IfcGeomObjects::GetShapeModel() {
return current_shape_model_obj;
}
const IfcGeomObjects::IfcGeomBrepDataObject* IfcGeomObjects::GetBrepData() {
return current_brep_data_obj;
}
double UnitPrefixToValue( Ifc2x3::IfcSIPrefix::IfcSIPrefix v ) {
if ( v == Ifc2x3::IfcSIPrefix::IfcSIPrefix_EXA ) return (double) 1e18;
else if ( v == Ifc2x3::IfcSIPrefix::IfcSIPrefix_PETA ) return (double) 1e15;
@@ -582,11 +629,12 @@ bool _Init() {
shapereps = ifc_file->EntitiesByType<Ifc2x3::IfcShapeRepresentation>();
if ( ! shapereps ) return false;
outer = shapereps->begin();
shaperep_iterator = shapereps->begin();
entities.reset();
current_geom_obj = _get();
if ( ! current_geom_obj ) return false;
if (!try_and_create_representations_for_current_entity()) {
return false;
}
done = 0;
total = shapereps->Size();
@@ -636,6 +684,9 @@ void IfcGeomObjects::Settings(int setting, bool value) {
case DISABLE_OPENING_SUBTRACTIONS:
disable_subtractions = value;
break;
case DISABLE_TRIANGULATION:
disable_triangulation = value;
break;
}
}
int IfcGeomObjects::Progress() {