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GEOS
3.5.0
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Clipping rectangle. More...
#include <Rectangle.h>
Public Types | |
| 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. More... | |
| 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. More... | |
Static Public Member Functions | |
| static bool | onEdge (Position pos) |
| Test if the given position is on a edge. More... | |
| static bool | onSameEdge (Position pos1, Position pos2) |
| Test if the given positions are on the same Rectangle edge. More... | |
| static Position | nextEdge (Position pos) |
| Next edge in clock-wise direction. More... | |
Clipping rectangle.
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 |
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inlinestatic |
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inline |
| geom::Polygon* geos::operation::intersection::Rectangle::toPolygon | ( | const geom::GeometryFactory & | f | ) | const |
@return the rectangle as a polygon geometry
Ownership transferred to caller
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inline |
@return the maximum x-coordinate of the rectangle
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inline |
@return the minimum x-coordinate of the rectangle
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inline |
@return the maximum y-coordinate of the rectangle
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inline |
@return the minimum y-coordinate of the rectangle
1.8.11