Eclipse SUMO - Simulation of Urban MObility
GeomHelper.h
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1 /****************************************************************************/
2 // Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.org/sumo
3 // Copyright (C) 2001-2019 German Aerospace Center (DLR) and others.
4 // This program and the accompanying materials
5 // are made available under the terms of the Eclipse Public License v2.0
6 // which accompanies this distribution, and is available at
7 // http://www.eclipse.org/legal/epl-v20.html
8 // SPDX-License-Identifier: EPL-2.0
9 /****************************************************************************/
18 // Some static methods performing geometrical operations
19 /****************************************************************************/
20 #ifndef GeomHelper_h
21 #define GeomHelper_h
22 
23 
24 // ===========================================================================
25 // included modules
26 // ===========================================================================
27 #include <config.h>
28 
29 #include <cmath>
30 #include "Position.h"
31 #include "PositionVector.h"
33 
34 #ifndef M_PI
35 #define M_PI 3.1415926535897932384626433832795
36 #endif
37 
38 #define DEG2RAD(x) static_cast<double>((x) * M_PI / 180.)
39 #define RAD2DEG(x) static_cast<double>((x) * 180. / M_PI)
40 
41 
42 // ===========================================================================
43 // class definitions
44 // ===========================================================================
48 class GeomHelper {
49 
50 public:
52  static const double INVALID_OFFSET;
53 
63  static void findLineCircleIntersections(const Position& c, double radius, const Position& p1, const Position& p2,
64  std::vector<double>& into);
65 
66 
71  static double angle2D(const Position& p1, const Position& p2);
72 
74  const Position& lineStart, const Position& lineEnd,
75  const Position& p, bool perpendicular = true);
76 
78  const Position& lineStart, const Position& lineEnd,
79  const Position& p, bool perpendicular = true);
80 
81  static Position crossPoint(const Boundary& b,
82  const PositionVector& v);
83 
89  static double getCCWAngleDiff(double angle1, double angle2);
90 
91 
97  static double getCWAngleDiff(double angle1, double angle2);
98 
99 
105  static double getMinAngleDiff(double angle1, double angle2);
106 
107 
117  static double angleDiff(const double angle1, const double angle2);
118 
119 
126  static double naviDegree(const double angle);
127 
133  static double fromNaviDegree(const double angle);
134 
141  static double legacyDegree(const double angle, const bool positive = false);
142 
149  static PositionVector makeCircle(const double radius, const Position& center, unsigned int nPoints);
150 
158  static PositionVector makeRing(const double radius1, const double radius2, const Position& center, unsigned int nPoints);
159 
160 };
161 
162 
163 #endif
164 
165 /****************************************************************************/
static double getMinAngleDiff(double angle1, double angle2)
Returns the minimum distance (clockwise/counter-clockwise) between both angles.
Definition: GeomHelper.cpp:175
static double getCCWAngleDiff(double angle1, double angle2)
Returns the distance of second angle from first angle counter-clockwise.
Definition: GeomHelper.cpp:155
static PositionVector makeRing(const double radius1, const double radius2, const Position &center, unsigned int nPoints)
Definition: GeomHelper.cpp:255
static Position crossPoint(const Boundary &b, const PositionVector &v)
Definition: GeomHelper.cpp:130
static double nearest_offset_on_line_to_point25D(const Position &lineStart, const Position &lineEnd, const Position &p, bool perpendicular=true)
Definition: GeomHelper.cpp:117
A class that stores a 2D geometrical boundary.
Definition: Boundary.h:42
static double legacyDegree(const double angle, const bool positive=false)
Definition: GeomHelper.cpp:217
static double naviDegree(const double angle)
Definition: GeomHelper.cpp:194
static double nearest_offset_on_line_to_point2D(const Position &lineStart, const Position &lineEnd, const Position &p, bool perpendicular=true)
Definition: GeomHelper.cpp:90
Some static methods performing geometrical operations.
Definition: GeomHelper.h:48
A point in 2D or 3D with translation and scaling methods.
Definition: Position.h:39
A list of positions.
static double getCWAngleDiff(double angle1, double angle2)
Returns the distance of second angle from first angle clockwise.
Definition: GeomHelper.cpp:165
static double angle2D(const Position &p1, const Position &p2)
Returns the angle between two vectors on a plane The angle is from vector 1 to vector 2...
Definition: GeomHelper.cpp:84
static double fromNaviDegree(const double angle)
Definition: GeomHelper.cpp:211
static PositionVector makeCircle(const double radius, const Position &center, unsigned int nPoints)
Definition: GeomHelper.cpp:238
static const double INVALID_OFFSET
a value to signify offsets outside the range of [0, Line.length()]
Definition: GeomHelper.h:52
static void findLineCircleIntersections(const Position &c, double radius, const Position &p1, const Position &p2, std::vector< double > &into)
Returns the positions the given circle is crossed by the given line.
Definition: GeomHelper.cpp:48
static double angleDiff(const double angle1, const double angle2)
Returns the difference of the second angle to the first angle in radiants.
Definition: GeomHelper.cpp:181