// If no image is being displayed, try to generate a blank WCS image
GraphicsImageDisplay imageDisplay = (GraphicsImageDisplay) _coordinateConverter.getImageDisplay();
if (imageDisplay.isClear()) {
WorldCoordinates pos = table.getWCSCenter();
if (pos != null) {
imageDisplay.blankImage(pos.getRaDeg(), pos.getDecDeg());
}
}
return _coordinateConverter.isWCS();
}