How to use

getLatLon

method

in

ucar.nc2.dt.grid.GridCoordSys

/**
 * Get the Lat/Lon coordinates of the midpoint of a grid cell, using the x,y indices
 *
 * @param xindex x index
 * @param yindex y index
 * @return lat/lon coordinate of the midpoint of the cell
 */
@Override
public LatLonPoint getLatLon(int xindex, int yindex) {
 double x, y;
 if (horizXaxis instanceof CoordinateAxis1D) {
  CoordinateAxis1D horiz1D = (CoordinateAxis1D) horizXaxis;
  x = horiz1D.getCoordValue(xindex);
 } else {
  CoordinateAxis2D horiz2D = (CoordinateAxis2D) horizXaxis;
  x = horiz2D.getCoordValue( yindex, xindex);
 }
 if (horizYaxis instanceof CoordinateAxis1D) {
  CoordinateAxis1D horiz1D = (CoordinateAxis1D) horizYaxis;
  y = horiz1D.getCoordValue(yindex);
 } else {
  CoordinateAxis2D horiz2D = (CoordinateAxis2D) horizYaxis;
  y = horiz2D.getCoordValue( yindex, xindex);
 }
 return isLatLon() ? new LatLonPointImpl(y, x) : getLatLon(x, y);
}

/**
 * Get the Lat/Lon coordinates of the midpoint of a grid cell, using the x,y indices
 *
 * @param xindex x index
 * @param yindex y index
 * @return lat/lon coordinate of the midpoint of the cell
 */
@Override
public LatLonPoint getLatLon(int xindex, int yindex) {
 double x, y;
 if (horizXaxis instanceof CoordinateAxis1D) {
  CoordinateAxis1D horiz1D = (CoordinateAxis1D) horizXaxis;
  x = horiz1D.getCoordValue(xindex);
 } else {
  CoordinateAxis2D horiz2D = (CoordinateAxis2D) horizXaxis;
  x = horiz2D.getCoordValue( yindex, xindex);
 }
 if (horizYaxis instanceof CoordinateAxis1D) {
  CoordinateAxis1D horiz1D = (CoordinateAxis1D) horizYaxis;
  y = horiz1D.getCoordValue(yindex);
 } else {
  CoordinateAxis2D horiz2D = (CoordinateAxis2D) horizYaxis;
  y = horiz2D.getCoordValue( yindex, xindex);
 }
 return isLatLon() ? new LatLonPointImpl(y, x) : getLatLon(x, y);
}

/**
 * Get the Lat/Lon coordinates of the midpoint of a grid cell, using the x,y indices
 *
 * @param xindex x index
 * @param yindex y index
 * @return lat/lon coordinate of the midpoint of the cell
 */
@Override
public LatLonPoint getLatLon(int xindex, int yindex) {
 double x, y;
 if (horizXaxis instanceof CoordinateAxis1D) {
  CoordinateAxis1D horiz1D = (CoordinateAxis1D) horizXaxis;
  x = horiz1D.getCoordValue(xindex);
 } else {
  CoordinateAxis2D horiz2D = (CoordinateAxis2D) horizXaxis;
  x = horiz2D.getCoordValue( yindex, xindex);
 }
 if (horizYaxis instanceof CoordinateAxis1D) {
  CoordinateAxis1D horiz1D = (CoordinateAxis1D) horizYaxis;
  y = horiz1D.getCoordValue(yindex);
 } else {
  CoordinateAxis2D horiz2D = (CoordinateAxis2D) horizYaxis;
  y = horiz2D.getCoordValue( yindex, xindex);
 }
 return isLatLon() ? new LatLonPointImpl(y, x) : getLatLon(x, y);
}