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Work on face boundaries

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This commit is contained in:
Thomas Krijnen
2019-08-26 17:19:06 +02:00
parent 8b4900b0e1
commit f17036313d
4 changed files with 973 additions and 18 deletions
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src/ifcgeom/taxonomy.h
+55 -16
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@@ -24,7 +24,7 @@ public:
topology_error() : std::runtime_error("Generic topology error") {}
};
enum kinds { MATRIX4, POINT3, DIRECTION3, LINE, CIRCLE, ELLIPSE, BSPLINE, EDGE, LOOP, FACE, SHELL, EXTRUSION, NODE, COLLECTION, COLOUR, STYLE };
enum kinds { MATRIX4, POINT3, DIRECTION3, LINE, CIRCLE, ELLIPSE, BSPLINE_CURVE, EDGE, LOOP, FACE, SHELL, EXTRUSION, NODE, COLLECTION, COLOUR, STYLE };
struct item {
const IfcUtil::IfcBaseClass* instance;
@@ -114,46 +114,74 @@ struct direction3 : public cartesian_base<3> {
direction3(double x = 0., double y = 0., double z = 0.) : cartesian_base(x, y, z) {}
};
struct line : public geom_item {
struct curve : public geom_item {};
struct line : public curve {
point3 origin;
direction3 direction;
virtual item* clone() const { return new line(*this); }
virtual kinds kind() const { return LINE; }
};
struct circle : public geom_item {
struct circle : public curve {
point3 origin;
direction3 x;
direction3 z;
double radius;
virtual item* clone() const { return new circle(*this); }
virtual kinds kind() const { return CIRCLE; }
};
struct ellipse : public geom_item {
struct ellipse : public circle {
double radius2;
virtual item* clone() const { return new ellipse(*this); }
virtual kinds kind() const { return ELLIPSE; }
};
struct bspline : public geom_item {
virtual item* clone() const { return new bspline(*this); }
virtual kinds kind() const { return BSPLINE; }
struct bspline_curve : public curve {
virtual item* clone() const { return new bspline_curve(*this); }
virtual kinds kind() const { return BSPLINE_CURVE; }
};
typedef boost::variant<line, circle, ellipse, bspline> curve;
struct edge : public geom_item {
struct trimmed_curve : public curve {
boost::variant<point3, double> start, end;
boost::optional<curve> basis;
// @todo somehow account for the fact that curve in IFC can be trimmed curve, polyline and composite curve as well.
curve* basis;
bool orientation;
edge() : orientation(true) {}
virtual item* clone() const { return new edge(*this); }
virtual kinds kind() const { return EDGE; }
trimmed_curve() : basis(nullptr), orientation(true) {}
virtual void reverse() {
std::swap(start, end);
orientation = !orientation;
}
};
struct edge : public trimmed_curve {
// @todo how to express similarity between trimmed_curve and edge?
virtual item* clone() const { return new edge(*this); }
virtual kinds kind() const { return EDGE; }
};
struct collection : public geom_item {
std::vector<item*> children;
template <typename T>
std::vector<T*> children_as() const {
std::vector<T*> ts;
ts.reserve(children.size());
std::for_each(children.begin(), children.end(), [&ts](item* i){
auto v = dynamic_cast<T*>(i);
if (v) {
ts.push_back(v);
}
});
return ts;
}
virtual item* clone() const { return new collection(*this); }
virtual kinds kind() const { return COLLECTION; }
virtual void reverse() {
@@ -175,6 +203,8 @@ struct face : public collection {
};
struct loop : public collection {
boost::optional<bool> external;
virtual item* clone() const { return new loop(*this); }
virtual kinds kind() const { return LOOP; }
};
@@ -205,7 +235,8 @@ struct node : public geom_item {
};
namespace impl {
typedef std::tuple<matrix4, point3, direction3, line, circle, ellipse, bspline, edge, loop, face, shell, extrusion, node, collection> KindsTuple;
typedef std::tuple<matrix4, point3, direction3, line, circle, ellipse, bspline_curve, edge, loop, face, shell, extrusion, node, collection> KindsTuple;
typedef std::tuple<line, circle, ellipse, bspline_curve> CurvesTuple;
}
struct type_by_kind {
@@ -215,6 +246,14 @@ struct type_by_kind {
static const size_t max = std::tuple_size< impl::KindsTuple>::value;
};
struct curves {
template <std::size_t N>
using type = typename std::tuple_element<N, impl::CurvesTuple>::type;
static const size_t max = std::tuple_size< impl::CurvesTuple>::value;
};
}