|
Point2D Class Reference |  |
Two dimensional point or position. More...
#include <vigra/diff2d.hxx>
Inheritance diagram for Point2D:
Public Types | |
| typedef Point2D | index_reference |
| typedef Point2D | PixelType |
| typedef Point2D const * | pointer |
| typedef Point2D const & | reference |
| typedef Point2D | value_type |
 Public Types inherited from Diff2D | |
| typedef IteratorAdaptor < Diff2DConstColumnIteratorPolicy < Diff2D > > | column_iterator |
| typedef Diff2D | difference_type |
| typedef Diff2D | index_reference |
| typedef image_traverser_tag | iterator_category |
| typedef int | MoveX |
| typedef int | MoveY |
| typedef Diff2D | PixelType |
| typedef Diff2D const * | pointer |
| typedef Diff2D const & | reference |
| typedef IteratorAdaptor < Diff2DConstRowIteratorPolicy < Diff2D > > | row_iterator |
| typedef Diff2D | value_type |
Public Member Functions | |
| index_reference | operator() (int const &dx, int const &dy) const |
| reference | operator* () const |
| Point2D & | operator+= (Diff2D const &offset) |
| Point2D | operator- () const |
| Point2D & | operator-= (Diff2D const &offset) |
| pointer | operator-> () const |
| Point2D & | operator= (Diff2D const &v) |
| index_reference | operator[] (Diff2D const &offset) const |
| Point2D () | |
| Point2D (int x, int y) | |
| Point2D (Point2D const &v) | |
| Point2D (Diff2D const &v) | |
| int | px () const |
| int | py () const |
| Public Member Functions inherited from Diff2D | |
| column_iterator | columnIterator () const |
| Diff2D () | |
| Diff2D (int ax, int ay) | |
| Diff2D (Diff2D const &v) | |
| double | magnitude () const |
| bool | operator!= (Diff2D const &r) const |
| index_reference | operator() (int const &dx, int const &dy) const |
| Diff2D | operator* (int factor) const |
| Diff2D | operator* (double factor) const |
| reference | operator* () const |
| Diff2D & | operator*= (int factor) |
| Diff2D & | operator*= (double factor) |
| Diff2D & | operator+= (Diff2D const &offset) |
| Diff2D | operator- () const |
| Diff2D & | operator-= (Diff2D const &offset) |
| pointer | operator-> () const |
| Diff2D | operator/ (int factor) const |
| Diff2D | operator/ (double factor) const |
| Diff2D & | operator/= (int factor) |
| Diff2D & | operator/= (double factor) |
| Diff2D & | operator= (Diff2D const &v) |
| bool | operator== (Diff2D const &r) const |
| index_reference | operator[] (Diff2D const &offset) const |
| int | operator[] (int index) const |
| row_iterator | rowIterator () const |
| int | squaredMagnitude () const |
Additional Inherited Members | |
| Public Attributes inherited from Diff2D | |
| int | x |
| int | y |
Detailed Description
Two dimensional point or position.
Specializes Diff2D for the specification of a 2-dimensional point or position, in contrast to an extent (for the latter use Size2D).
// access an image at a point
value = image[Point2D(10, 20)];
#include <vigra/diff2d.hxx>
Namespace: vigra
Member Typedef Documentation
| typedef Point2D value_type |
The iterator's value type: a coordinate.
| typedef Point2D index_reference |
the iterator's index reference type (return type of iter[diff])
Constructor & Destructor Documentation
| Point2D | ( | ) |
Default Constructor. Init point at position (0,0)
| Point2D | ( | int | x, |
| int | y | ||
| ) |
Construct point at given position.
Member Function Documentation
| int px | ( | ) | const |
Query the points' x coordinate
| int py | ( | ) | const |
Query the points' y coordinate
| Point2D operator- | ( | ) | const |
Unary negation.
| reference operator* | ( | ) | const |
Access current point coordinate.
| index_reference operator() | ( | int const & | dx, |
| int const & | dy | ||
| ) | const |
Read point coordinate at an offset.
| index_reference operator[] | ( | Diff2D const & | offset | ) | const |
Read point coordinate at an offset.
| pointer operator-> | ( | ) | const |
Access current point coordinate.
The documentation for this class was generated from the following file:
- vigra/diff2d.hxx