#include <Rectangle.h>
Public Types | |
Inside = 1 | |
Outside = 2 | |
Left = 4 | |
Top = 8 | |
Right = 16 | |
Bottom = 32 | |
TopLeft = Top|Left | |
TopRight = Top|Right | |
BottomLeft = Bottom|Left | |
BottomRight = Bottom|Right | |
enum | Position { Inside = 1, Outside = 2, Left = 4, Top = 8, Right = 16, Bottom = 32, TopLeft = Top|Left, TopRight = Top|Right, BottomLeft = Bottom|Left, BottomRight = Bottom|Right } |
Position with respect to a clipping rectangle. | |
Public Member Functions | |
Rectangle (double x1, double y1, double x2, double y2) | |
Construct a clipping rectangle. | |
double | xmin () const |
double | ymin () const |
double | xmax () const |
double | ymax () const |
geom::Polygon * | toPolygon (const geom::GeometryFactory &f) const |
geom::LinearRing * | toLinearRing (const geom::GeometryFactory &f) const |
Position | position (double x, double y) const |
Establish position of coordinate with respect to a Rectangle. | |
Static Public Member Functions | |
static bool | onEdge (Position pos) |
Test if the given position is on a edge. | |
static bool | onSameEdge (Position pos1, Position pos2) |
Test if the given positions are on the same Rectangle edge. | |
static Position | nextEdge (Position pos) |
Next edge in clock-wise direction. |
A clipping rectangle defines the boundaries of the rectangle by defining the limiting x- and y-coordinates. The clipping rectangle must be non-empty. In addition, methods are provided for specifying the location of a given coordinate with respect to the clipping rectangle similarly to the Cohen-Sutherland clipping algorithm.
geos::operation::intersection::Rectangle::Rectangle | ( | double | x1, | |
double | y1, | |||
double | x2, | |||
double | y2 | |||
) |
Construct a clipping rectangle.
x1 | x-coordinate of the left edge | |
y1 | y-coordinate of the bottom edge | |
x2 | x-coordinate of the right edge | |
y2 | y-coordinate of the right edge |
IllegalArgumentException | if the rectangle is empty |
static bool geos::operation::intersection::Rectangle::onEdge | ( | Position | pos | ) | [inline, static] |
Position geos::operation::intersection::Rectangle::position | ( | double | x, | |
double | y | |||
) | const [inline] |
geom::Polygon* geos::operation::intersection::Rectangle::toPolygon | ( | const geom::GeometryFactory & | f | ) | const |
@return the rectangle as a polygon geometry
Ownership transferred to caller
double geos::operation::intersection::Rectangle::xmax | ( | ) | const [inline] |
@return the maximum x-coordinate of the rectangle
double geos::operation::intersection::Rectangle::xmin | ( | ) | const [inline] |
@return the minimum x-coordinate of the rectangle
double geos::operation::intersection::Rectangle::ymax | ( | ) | const [inline] |
@return the maximum y-coordinate of the rectangle
double geos::operation::intersection::Rectangle::ymin | ( | ) | const [inline] |
@return the minimum y-coordinate of the rectangle