/**
* Format an angle according to the current angle format. Prepend a specified label.
*
* @param label a label to prepend to the formatted angle. May be null to indicate no label.
* @param angle the angle to format.
* @return a string containing the formatted angle prepended with the specified label.
* @throws IllegalArgumentException if the angle is null.
*/
public String angle(String label, Angle angle) {
if (angle == null) {
String msg = Logging.getMessage("nullValue.AngleIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
String s;
if (this.isShowDMS()) s = String.format("%s", angle.toFormattedDMSString()).trim();
else s = String.format(this.getFormat(FORMAT_DECIMAL_DEGREES), angle.degrees).trim();
return label != null ? label + " " + s : s;
}
