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CGAL 4.13.1 - 2D Periodic Triangulations
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CGAL 4.13.1 - 2D Periodic Triangulations
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The concept Periodic_2Offset_2 describes a two-/dimensional integer vector with some specialized access functions and operations.
Related Functions | |
(Note that these are not member functions.) | |
| istream & | operator>> (istream &is, Periodic_2Offset_2 &off) |
Inputs an offset from is. | |
| ostream & | operator<< (ostream &os, Periodic_2Offset_2 &off) const |
Outputs an offset from os. | |
Creation | |
| Periodic_2Offset_2 () | |
| Default constructor. | |
| Periodic_2Offset_2 (int x, int y) | |
| Constructs the offset (x,y). | |
Operations | |
| Periodic_2Offset_2 | operator+ (const Periodic_2Offset_2 &o) const |
Return the vector sum of this and o. | |
| Periodic_2Offset_2 | operator- (const Periodic_2Offset_2 &o) const |
Return the vector difference of this and o. | |
| Periodic_2Offset_2 | operator- () const |
Return the negative vector of this. | |
| void | operator+= (const Periodic_2Offset_2 &o) const |
Add o to this using vector addition. | |
| void | operator-= (const Periodic_2Offset_2 &o) const |
Subtract o from this using vector subtraction. | |
| bool | operator== (const Periodic_2Offset_2 &o) const |
Return true if o and this represent the same vector. | |
| bool | operator!= (const Periodic_2Offset_2 &o) const |
Return true if o and this do not represent the same vector. | |
| bool | operator< (const Periodic_2Offset_2 &o) const |
Compare this and o lexicographically. | |
Access Functions | |
| int | operator[] (int i) |
Return the \( i\)-th entry of this. More... | |
| int | x () const |
Return the \( x\)-entry of this. | |
| int | y () const |
Return the \( y\)-entry of this. | |
| bool | is_null () const |
Returns true if this is equal to (0,0). | |
| bool | is_zero () const |
Returns true if this is equal to (0,0). | |
| int Periodic_2Offset_2::operator[] | ( | int | i | ) |
Return the \( i\)-th entry of this.
1.8.13