(mysql.info.gz) GIS class curve

Info Catalog

(mysql.info.gz) GIS class point

(mysql.info.gz) OpenGIS geometry model

(mysql.info.gz) GIS class linestring

 
 18.2.4 Class `Curve'
 --------------------
 
 A `Curve' is a one-dimensional geometry, usually represented by a
 sequence of points. Particular subclasses of `Curve' define the type of
 interpolation between points. `Curve' is a non-instantiable class.
 
 `Curve' Properties
 ..................
 
    * A `Curve' has the coordinates of its points.
 
    * A `Curve' is defined as a one-dimensional geometry.
 
    * A `Curve' is simple if it does not pass through the same point
      twice.
 
    * A `Curve' is closed if its start point is equal to its end point.
 
    * The boundary of a closed `Curve' is empty.
 
    * The boundary of a non-closed `Curve' consists of its two end
      points.
 
    * A `Curve' that is simple and closed is a `LinearRing'.
 
 

Info Catalog

(mysql.info.gz) GIS class point

(mysql.info.gz) OpenGIS geometry model

(mysql.info.gz) GIS class linestring