Field Detail

• hexDigits

  public static final char[] hexDigits

  This array contains the 16 hex digits '0'-'F'.

Constructor Detail

• Tools

  public Tools()

Method Detail

• c2hex

  public static String c2hex​(Color c)

  Converts a Color to an 7 byte hex string starting with '#'.

• f2hex

  public static String f2hex​(float f)

  Converts a float to an 9 byte hex string starting with '#'.

• int2hex

  public static String int2hex​(int i,
                               int digits)

  Converts an int to a zero-padded hex string of fixed length 'digits'. If the number is too high, it gets truncated, keeping only the lowest 'digits' characters.

• getStatistics

  public static ImageStatistics getStatistics​(double[] a)

• getMinMax

  public static double[] getMinMax​(double[] a)

• getMinMax

  public static double[] getMinMax​(float[] a)

• toDouble

  public static double[] toDouble​(float[] a)

  Converts the float array 'a' to a double array.

• toFloat

  public static float[] toFloat​(double[] a)

  Converts the double array 'a' to a float array.

• fixNewLines

  public static String fixNewLines​(String s)

  Converts carriage returns to line feeds.

• parseDouble

  public static double parseDouble​(String s,
                                   double defaultValue)

  Returns a double containg the value represented by the specified String.

  Parameters:

  s - the string to be parsed.

  defaultValue - the value returned if s does not contain a parsable double

  Returns:

  The double value represented by the string argument or defaultValue if the string does not contain a parsable double

• parseDouble

  public static double parseDouble​(String s)

  Returns a double containg the value represented by the specified String.

  Parameters:

  s - the string to be parsed.

  Returns:

  The double value represented by the string argument or Double.NaN if the string does not contain a parsable double

• getDecimalPlaces

  public static int getDecimalPlaces​(double n)

  Returns the number of decimal places needed to display a number, or -2 if exponential notation should be used.

• getDecimalPlaces

  public static int getDecimalPlaces​(double n1,
                                     double n2)

  Returns the number of decimal places needed to display two numbers, or -2 if exponential notation should be used.

• split

  public static String[] split​(String str)

  Splits a string into substrings using the default delimiter set, which is " \t\n\r" (space, tab, newline and carriage-return).

• split

  public static String[] split​(String str,
                               String delim)

  Splits a string into substring using the characters contained in the second argument as the delimiter set.

• rank

  public static int[] rank​(double[] values)

  Returns a sorted list of indices of the specified double array. Modified from: http://stackoverflow.com/questions/951848 by N.Vischer.

• rank

  public static int[] rank​(String[] data)

  Returns a sorted list of indices of the specified String array.

• resampleArray

  public static double[] resampleArray​(double[] y1,
                                       int len2)

  Returns an array linearly resampled to a different length.

• openFromIJJarAsString

  public static String openFromIJJarAsString​(String path)

  Opens a text file in ij.jar as a String (example path: "/macros/Circle_Tool.txt").

• copyFile

  public static String copyFile​(String path1,
                                String path2)

  Copies the contents of the file at 'path1' to 'path2', returning an error message (as a non-empty string) if there is an error. Based on the method with the same name in Tobias Pietzsch's TifBenchmark class.