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*** See: https://sourceforge.net/p/ifcopenshell/discussion/1782718/thread/6bd0f843/ ***

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Massive refactor of the IfcGeomObjects module, which is now the IfcGeom::Iterator class.
This commit is contained in:
Thomas Krijnen
2014-12-19 12:14:36 +00:00
parent 3f285ea639
commit 2a403e240d
41 changed files with 2227 additions and 1836 deletions
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src/ifcgeom/IfcGeom.h
+61 -6
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@@ -43,8 +43,23 @@
#include "../ifcgeom/IfcRepresentationShapeItem.h"
#define IN_CACHE(T,E,t,e) std::map<int,t>::const_iterator it = cache.T.find(E->entity->id());\
if ( it != cache.T.end() ) { e = it->second; return true; }
#define CACHE(T,E,e) cache.T[E->entity->id()] = e;
namespace IfcGeom {
class Cache {
public:
#include "IfcRegisterCreateCache.h"
std::map<int, SurfaceStyle> Style;
std::map<int, TopoDS_Shape> Shape;
};
class Kernel {
private:
Cache cache;
public:
// Tolerances and settings for various geometrical operations:
enum GeomValue {
// Specifies the deflection of the mesher
@@ -103,17 +118,57 @@ namespace IfcGeom {
double shape_volume(const TopoDS_Shape& s);
double face_area(const TopoDS_Face& f);
void apply_tolerance(TopoDS_Shape& s, double t);
void SetValue(GeomValue var, double value);
double GetValue(GeomValue var);
void setValue(GeomValue var, double value);
double getValue(GeomValue var);
bool fill_nonmanifold_wires_with_planar_faces(TopoDS_Shape& shape);
IfcSchema::IfcProductDefinitionShape* tesselate(TopoDS_Shape& shape, double deflection, IfcEntityList::ptr es);
void remove_redundant_points_from_loop(TColgp_SequenceOfPnt& polygon, bool closed, double tol=-1.);
const SurfaceStyle* get_style(const IfcSchema::IfcRepresentationItem* representation_item);
namespace Cache {
void Purge();
void PurgeShapeCache();
template <typename T> std::pair<IfcSchema::IfcSurfaceStyle*, T*> get_surface_style(const IfcSchema::IfcRepresentationItem* representation_item) {
IfcSchema::IfcStyledItem::list::ptr styled_items = representation_item->StyledByItem();
for (IfcSchema::IfcStyledItem::list::it jt = styled_items->begin(); jt != styled_items->end(); ++jt) {
#ifdef USE_IFC4
IfcUtil::IfcAbstractSelect::list::ptr style_assignments = (*jt)->Styles();
for (IfcUtil::IfcAbstractSelect::list::it kt = style_assignments->begin(); kt != style_assignments->end(); ++kt) {
if (!(*kt)->is(IfcSchema::Type::IfcPresentationStyleAssignment)) {
continue;
}
IfcSchema::IfcPresentationStyleAssignment* style_assignment = (IfcSchema::IfcPresentationStyleAssignment*) *kt;
#else
IfcSchema::IfcPresentationStyleAssignment::list::ptr style_assignments = (*jt)->Styles();
for (IfcSchema::IfcPresentationStyleAssignment::list::it kt = style_assignments->begin(); kt != style_assignments->end(); ++kt) {
IfcSchema::IfcPresentationStyleAssignment* style_assignment = *kt;
#endif
IfcUtil::IfcAbstractSelect::list::ptr styles = style_assignment->Styles();
for (IfcUtil::IfcAbstractSelect::list::it lt = styles->begin(); lt != styles->end(); ++lt) {
IfcUtil::IfcAbstractSelect* style = *lt;
if (style->is(IfcSchema::Type::IfcSurfaceStyle)) {
IfcSchema::IfcSurfaceStyle* surface_style = (IfcSchema::IfcSurfaceStyle*) style;
if (surface_style->Side() != IfcSchema::IfcSurfaceSide::IfcSurfaceSide_NEGATIVE) {
IfcUtil::IfcAbstractSelect::list::ptr styles_elements = surface_style->Styles();
for (IfcUtil::IfcAbstractSelect::list::it mt = styles_elements->begin(); mt != styles_elements->end(); ++mt) {
if ((*mt)->is(T::Class())) {
return std::make_pair(surface_style, (T*) *mt);
}
}
}
}
}
}
// StyledByItem is a SET [0:1] OF IfcStyledItem, so we
// break after encountering the first IfcStyledItem
break;
}
return std::make_pair<IfcSchema::IfcSurfaceStyle*, T*>(0,0);
}
#include "IfcRegisterGeomHeader.h"
};
}
#endif