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/**
* Abstract; not implemented. There is no explicit constructor; this class
* merely serves to document the representation used by {@link pv.Geo.scale}.
*
* @class Represents a geographic projection. This class provides the core
* implementation for {@link pv.Geo.scale}s, mapping between geographic
* coordinates (latitude and longitude) and normalized screen space in the range
* [-1,1]. The remaining mapping between normalized screen space and actual
* pixels is performed by <tt>pv.Geo.scale</tt>.
*
* <p>Many geographic projections have a point around which the projection is
* centered. Rather than have each implementation add support for a
* user-specified center point, the <tt>pv.Geo.scale</tt> translates the
* geographic coordinates relative to the center point for both the forward and
* inverse projection.
*
* <p>In general, this class should not be used directly, unless the desire is
* to implement a new geographic projection. Instead, use <tt>pv.Geo.scale</tt>.
* Implementations are not required to implement inverse projections, but are
* needed for some forms of interactivity. Also note that some inverse
* projections are ambiguous, such as the connecting points in Dymaxian maps.
*
* @name pv.Geo.Projection
* @see pv.Geo.scale
*/
/**
* The <i>forward</i> projection.
*
* @function
* @name pv.Geo.Projection.prototype.project
* @param {pv.Geo.LatLng} latlng the latitude and longitude to project.
* @returns {pv.Vector} the xy-coordinates of the given point.
*/
/**
* The <i>inverse</i> projection; optional.
*
* @function
* @name pv.Geo.Projection.prototype.invert
* @param {pv.Vector} xy the x- and y-coordinates to invert.
* @returns {pv.Geo.LatLng} the latitude and longitude of the given point.
*/
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23 entries across 23 versions & 1 rubygems