mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-15 18:14:08 +00:00
Thomas Krijnen
106 lines
3.7 KiB
C++
106 lines
3.7 KiB
C++
/********************************************************************************
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* *
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* This file is part of IfcOpenShell. *
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* *
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* IfcOpenShell is free software: you can redistribute it and/or modify *
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* it under the terms of the Lesser GNU General Public License as published by *
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* the Free Software Foundation, either version 3.0 of the License, or *
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* (at your option) any later version. *
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* *
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* IfcOpenShell is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* Lesser GNU General Public License for more details. *
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* *
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* You should have received a copy of the Lesser GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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********************************************************************************/
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#ifndef WIRE_BUILDER_H
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#define WIRE_BUILDER_H
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#include "../ifcparse/IfcBaseClass.h"
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#include <Geom_Curve.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Wire.hxx>
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#include <Extrema_ExtPC.hxx>
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#include <BRepBuilderAPI_MakeWire.hxx>
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namespace IfcGeom {
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namespace util {
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// Returns the first edge of a wire
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TopoDS_Edge first_edge(const TopoDS_Wire& w);
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// Returns new wire with the edge replaced by a linear edge with the vertex v moved to p
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TopoDS_Wire adjust(const TopoDS_Wire& w, const TopoDS_Vertex& v, const gp_Pnt& p);
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// A wrapper around BRepBuilderAPI_MakeWire that makes sure segments are connected either by moving end points or by adding intermediate segments
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class wire_builder {
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private:
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BRepBuilderAPI_MakeWire mw_;
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double p_;
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bool override_next_;
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gp_Pnt next_override_;
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const IfcUtil::IfcBaseClass* inst_;
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public:
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wire_builder(double p, const IfcUtil::IfcBaseClass* inst = 0) : p_(p), override_next_(false), inst_(inst) {}
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void operator()(const TopoDS_Shape& a);
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void operator()(const TopoDS_Shape& a, const TopoDS_Shape& b, bool last);
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const TopoDS_Wire& wire() { return mw_.Wire(); }
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};
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template <typename Fn>
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void shape_pair_enumerate(TopTools_ListIteratorOfListOfShape& it, Fn& fn, bool closed) {
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bool is_first = true;
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TopoDS_Shape first, previous, current;
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for (; it.More(); it.Next(), is_first = false) {
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current = it.Value();
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if (is_first) {
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first = current;
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} else {
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fn(previous, current, false);
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}
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previous = current;
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}
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if (closed) {
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fn(current, first, true);
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} else {
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fn(current);
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}
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}
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/*
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Below is code to deduce the formula below in SageMath
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| R, b = var('R b')
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| Bxy = R * cos(b), R * sin(b)
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| Cxy = R * cos(b/2), R * sin(b/2)
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| def dot(v, w):
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| return v[0] * w[0] + v[1] * w[1]
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| def norm(v):
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| l = sqrt(v[0]^2 + v[1]^2)
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| return v[0] / l, v[1] / l
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| (R - R*dot(norm(Cxy), norm(Bxy))).full_simplify()
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*/
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double deflection_for_approximating_circle(double radius, double param);
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bool create_edge_over_curve_with_log_messages(const Handle_Geom_Curve& crv, const double eps, const gp_Pnt& p1, const gp_Pnt& p2, TopoDS_Edge& result);
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}
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}
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#endif
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