Module: RGeo::Feature::Point

Extended by:
Type
Includes:
Geometry
Included in:
Cartesian::PointImpl, Geographic::ProjectedPointImpl, Geographic::SphericalPointImpl
Defined in:
lib/rgeo/feature/point.rb

Overview

SFS 1.1 Description

A Point is a 0-dimensional geometric object and represents a single location in coordinate space. A Point has an x-coordinate value and a y-coordinate value.

The boundary of a Point is the empty set.

Notes

Point is defined as a module and is provided primarily for the sake of documentation. Implementations need not necessarily include this module itself. Therefore, you should not depend on the kind_of? method to check type. Instead, use the provided check_type class method (or === operator) defined in the Type module.

Some implementations may support higher dimensional points.

Constant Summary

Constants included from Type

Type::Instance

Instance Method Summary collapse

Methods included from Type

check_type, subtype_of?, type_name

Methods included from Geometry

#*, #+, #-, #==, #as_binary, #as_text, #boundary, #buffer, #contains?, #convex_hull, #crosses?, #difference, #dimension, #disjoint?, #distance, #envelope, #eql?, #equals?, #factory, #geometry_type, #intersection, #intersects?, #is_empty?, #is_simple?, #overlaps?, #relate, #srid, #sym_difference, #touches?, #union, #within?

Instance Method Details

#m ⇒ Object

Returns the m-coordinate for this Point as a floating-point scalar value.

This method may not be available if the point’s factory does not support M coordinates.

Raises:



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# File 'lib/rgeo/feature/point.rb', line 110

def m
  raise Error::UnsupportedOperation, "Method Point#m not defined."
end

#x ⇒ Object

SFS 1.1 Description

The x-coordinate value for this Point.

Notes

Returns a floating-point scalar value.

Raises:



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# File 'lib/rgeo/feature/point.rb', line 75

def x
  raise Error::UnsupportedOperation, "Method Point#x not defined."
end

#y ⇒ Object

SFS 1.1 Description

The y-coordinate value for this Point.

Notes

Returns a floating-point scalar value.

Raises:



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# File 'lib/rgeo/feature/point.rb', line 88

def y
  raise Error::UnsupportedOperation, "Method Point#y not defined."
end

#z ⇒ Object

Returns the z-coordinate for this Point as a floating-point scalar value.

This method may not be available if the point’s factory does not support Z coordinates.

Raises:



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# File 'lib/rgeo/feature/point.rb', line 99

def z
  raise Error::UnsupportedOperation, "Method Point#z not defined."
end