8431385b44
A series of algorithms to detect missing constraints and create them.
Each of the algorithms is divided in different steps for maximum flexibility:
/// There is a first type of routines, simple routines, which work in the following order:
/// Detect - (Analyse) - [Get] - [Set] - Make
///
/// The Detect step just identifies possible missing constraints.
///
/// The Analyse, which is not available for all the routines, operates in detected constraints of the same routine, to
/// look for alternatives. For example, a general pointonpoint detection leads to a search for coincident constraints, which
/// can be later run via Analyse if it is intended to convert endpoint coincidence to endpoint perpendicular and tangent constraints.
///
/// The Get retrieves the result of the analysis as a vector of ConstraintIds, indicating the suggested constraints. This step is intended
/// for enabling the user to check the result of the analysis, rather than applying it. If only applying is intended, this step is not necessary
/// as the Make will operate on the result of the Detect - Analyse directly.
///
/// The Set changes the detected result. It modifies the SketchAnalysis object. It only modifies the SketchObject as far as the SketchAnalysis is changed.
/// It does not apply any changes to the sketch. It is intended so as to enable the user to change the result that will be applied.
///
/// Neither the Detect, nor the Analyse, nor the Get steps modify the Sketch geometry.
///
/// Make applies the constraints stored internally in the SketchAnalysis object.
It includes an automatic constraining algorithm for coincidences, horizontals/verticals and equality:
/// A second type of routines, complex routines, are thought for running fully automatic and they Detect, Analyse and Make.
/// They may also apply a variaty of types of Constraints.
It also includes some helper functions, like autoRemoveRedundants
63 lines
2.6 KiB
C++
63 lines
2.6 KiB
C++
/***************************************************************************
|
|
* Copyright (c) 2018 Abdullah Tahiri <abdullah.tahiri.yo@gmail.com> *
|
|
* Copyright (c) 2013 Werner Mayer <wmayer[at]users.sourceforge.net> *
|
|
* *
|
|
* This file is part of the FreeCAD CAx development system. *
|
|
* *
|
|
* This library is free software; you can redistribute it and/or *
|
|
* modify it under the terms of the GNU Library General Public *
|
|
* License as published by the Free Software Foundation; either *
|
|
* version 2 of the License, or (at your option) any later version. *
|
|
* *
|
|
* This library is distributed in the hope that it will be useful, *
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
* GNU Library General Public License for more details. *
|
|
* *
|
|
* You should have received a copy of the GNU Library General Public *
|
|
* License along with this library; see the file COPYING.LIB. If not, *
|
|
* write to the Free Software Foundation, Inc., 59 Temple Place, *
|
|
* Suite 330, Boston, MA 02111-1307, USA *
|
|
* *
|
|
***************************************************************************/
|
|
|
|
|
|
#ifndef SKETCHER_ANALYSE_H
|
|
#define SKETCHER_ANALYSE_H
|
|
|
|
#include <vector>
|
|
#include <Mod/Sketcher/App/Constraint.h>
|
|
|
|
namespace Sketcher {
|
|
|
|
struct ConstraintIds {
|
|
Base::Vector3d v;
|
|
int First;
|
|
int Second;
|
|
Sketcher::PointPos FirstPos;
|
|
Sketcher::PointPos SecondPos;
|
|
Sketcher::ConstraintType Type;
|
|
};
|
|
|
|
struct Constraint_Equal : public std::unary_function<const struct Sketcher::ConstraintIds&, bool>
|
|
{
|
|
struct Sketcher::ConstraintIds c;
|
|
Constraint_Equal(const ConstraintIds& c) : c(c)
|
|
{
|
|
}
|
|
bool operator()(const ConstraintIds& x) const
|
|
{
|
|
if (c.First == x.First && c.FirstPos == x.FirstPos &&
|
|
c.Second == x.Second && c.SecondPos == x.SecondPos)
|
|
return true;
|
|
if (c.Second == x.First && c.SecondPos == x.FirstPos &&
|
|
c.First == x.Second && c.FirstPos == x.SecondPos)
|
|
return true;
|
|
return false;
|
|
}
|
|
};
|
|
|
|
} //namespace Sketcher
|
|
|
|
#endif // SKETCHER_ANALYSE_H
|