cdm/src/main/java/ucar/unidata/geoloc/projection/AlbersEqualArea.java
public ProjectionPoint latLonToProj(LatLonPoint latLon, ProjectionPointImpl result) {
    double toX, toY;
    double fromLat = latLon.getLatitude();
    double fromLon = latLon.getLongitude();

    fromLat = Math.toRadians(fromLat);
    fromLon = Math.toRadians(fromLon);
    double rho = computeRho(fromLat);
    double theta = computeTheta(fromLon);

    toX = rho * Math.sin(theta) + falseEasting;
    toY = rho0 - rho * Math.cos(theta) + falseNorthing;

    result.setLocation(toX, toY);
    return result;
  }
public ProjectionPoint latLonToProj(LatLonPoint latLon, ProjectionPointImpl result) {
    double toX, toY;
    double fromLat = latLon.getLatitude();
    double fromLon = latLon.getLongitude();

    fromLat = Math.toRadians(fromLat);
    fromLon = Math.toRadians(fromLon);
    double rho = computeRho(fromLat);
    double theta = computeTheta(fromLon);

    toX = rho * Math.sin(theta) + falseEasting;
    toY = rho0 - rho * Math.cos(theta) + falseNorthing;

    result.setLocation(toX, toY);
    return result;
  }
Convert a LatLonPoint to projection coordinates

@param latLon convert from these lat, lon coordinates
@param result the object to write to
@return the given result