GEOS
3.4.2
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Coordinate is the lightweight class used to store coordinates. More...
#include <geos.h>
Public Types | |
typedef std::set< const Coordinate *, CoordinateLessThen > | ConstSet |
A set of const Coordinate pointers. | |
typedef std::vector< const Coordinate * > | ConstVect |
A vector of const Coordinate pointers. | |
typedef std::stack< const Coordinate * > | ConstStack |
A stack of const Coordinate pointers. | |
typedef std::vector< Coordinate > | Vect |
A vector of Coordinate objects (real object, not pointers) | |
Public Member Functions | |
void | setNull () |
bool | isNull () const |
Coordinate (double xNew=0.0, double yNew=0.0, double zNew=DoubleNotANumber) | |
bool | equals2D (const Coordinate &other) const |
bool | equals (const Coordinate &other) const |
2D only | |
int | compareTo (const Coordinate &other) const |
TODO: deprecate this, move logic to CoordinateLessThen instead. | |
bool | equals3D (const Coordinate &other) const |
3D comparison | |
std::string | toString () const |
Returns a string of the form (x,y,z) . | |
double | distance (const Coordinate &p) const |
int | hashCode () const |
Static Public Member Functions | |
static Coordinate & | getNull () |
static int | hashCode (double d) |
Public Attributes | |
double | x |
x-coordinate | |
double | y |
y-coordinate | |
double | z |
z-coordinate | |
Coordinate is the lightweight class used to store coordinates.
It is distinct from Point, which is a subclass of Geometry. Unlike objects of type Point (which contain additional information such as an envelope, a precision model, and spatial reference system information), a Coordinate only contains ordinate values and accessor methods.
Coordinate objects are two-dimensional points, with an additional z-ordinate. JTS does not support any operations on the z-ordinate except the basic accessor functions.
Constructed coordinates will have a z-ordinate of DoubleNotANumber. The standard comparison functions will ignore the z-ordinate.
double geos::geom::Coordinate::distance | ( | const Coordinate & | p | ) | const |
TODO: obsoleted this, can use PrecisionModel::makePrecise(Coordinate*) instead
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static |
Returns a hash code for a double value, using the algorithm from Joshua Bloch's book Effective Java