Package ucar.nc2.ogc.erddap.util

Class ErddapMath2

  • public class ErddapMath2
extends Object
    The Math2 class has several static Math-related methods.
    • These are low level routines used by most other CoHort classes.
    • Many provide additional protection from run-time errors.

    • Field Detail

      • memoryTooMuchData

        public static String memoryTooMuchData
        These are *not* final so EDStatic can replace them with translated Strings. These are MessageFormat-style strings, so any single quote ' must be escaped as ''.

      • memoryArraySize

        public static String memoryArraySize

    • Constructor Detail

      • ErddapMath2

        public ErddapMath2()

    • Method Detail

      • isFinite

        public static boolean isFinite​(double d)
        Checks if the value is not NaN or +-Infinite. This works for floats.
        Parameters:
        d - any double value or float value
        Returns:
        true if d is is not NaN or +/-infinity.

      • ensureArraySizeOkay

        public static void ensureArraySizeOkay​(long tSize,
                                       String attributeTo)
        Even if JavaBits is 64, the limit on an array size is Integer.MAX_VALUE.

        This is almost identical to EDStatic.ensureArraySizeOkay, but lacks tallying.

        Parameters:
        tSize -
        attributeTo - for a WARNING or ERROR message, this is the string to which this not-enough-memory issue should be attributed.

      • roundToInt

        public static int roundToInt​(double d)
        Safely rounds a double to an int. (Math.round but rounds to a long and not safely.)
        Parameters:
        d - any double
        Returns:
        Integer.MAX_VALUE if d is too small, too big, or NaN; otherwise d, rounded to the nearest int. Undesirable: d.5 rounds up for positive numbers, down for negative.