public boolean isPlotable(double lat,double lon){
  if (lat < -70d)   return false;
  forward(lat,lon,plotablePoint);
  double x=plotablePoint.getX();
  double y=plotablePoint.getY();
  return (x >= 0 && x < this.width && y >= 0 && y < height);
}

public boolean isPlotable ( double lat , double lon ) { if ( lat < - 70d ) return false ; forward ( lat , lon , plotablePoint ) ; double x = plotablePoint . getX ( ) ; double y = plotablePoint . getY ( ) ; return ( x >= 0 && x < this . width && y >= 0 && y < height ) ; }
determine if the location is plotable on the screen . the lambert conformal projection does not lend its self to a simple determination . this method invokes forward to obtain the screen coordinates . if the screen coordinates are visible returns true otherwise returns false .
