Package com.metsci.glimpse.util.geo.projection

Interface GeoProjection

All Known Implementing Classes:

AzimuthalEquidistant, MercatorProjection, PolynomialTangentPlane, SlippyProjection, TangentPlane

public interface GeoProjection

Interface for projections from LatLonGeo to two coordinates (x, y).

Author:

moskowitz

Method Summary

Modifier and Type	Method	Description
Vector2d	project(LatLonGeo latLon)	Convert LatLon to (nearly) equivalent projected x,y position.
Vector2d	reprojectFrom(double x, double y, GeoProjection fromProjection)	Reproject an x,y position from a previous projection to this projection.
KinematicVector2d	reprojectPosVelFrom(double x, double y, double vx, double vy, GeoProjection fromProjection)	Reproject x, y position and corresponding x, y velocity vector at that location from a previous projection to this projection.
LatLonGeo	unproject(double x, double y)	Convert projected x,y position back to (nearly) equivalent LatLon.

Method Detail

project

Vector2d project(LatLonGeo latLon)

Convert LatLon to (nearly) equivalent projected x,y position.

Parameters:

latLon -

Returns:

projected x, y

unproject

LatLonGeo unproject(double x,
                    double y)

Convert projected x,y position back to (nearly) equivalent LatLon.

Parameters:

x - projected x position

y - projected y position

Returns:

latLon

reprojectFrom

Vector2d reprojectFrom(double x,
                       double y,
                       GeoProjection fromProjection)

Reproject an x,y position from a previous projection to this projection.

This is equivalent to unprojecting the x,y position from the old projection and then projecting it to this projection, but in a single step, which may be performed more efficiently.

Parameters:

x - previously projected x position

y - previously projected y position

fromProjection - previous projection

Returns:

projected position

reprojectPosVelFrom

KinematicVector2d reprojectPosVelFrom(double x,
                                      double y,
                                      double vx,
                                      double vy,
                                      GeoProjection fromProjection)

Reproject x, y position and corresponding x, y velocity vector at that location from a previous projection to this projection.

Parameters:

x - previously projected x position

y - previously projected y position

vx - previous x velocity component in projection space

vy - previous y velocity component in projection space

fromProjection - previous projection

Returns:

projected position and velocity