# Reclassify Grid Values

Copyrights (c) 2005 by Volker Wichmann
The module can be used to reclassify the values of a grid. It provides three different options: (a) reclassification of single values, (b) reclassification of a range of values and (c) reclassification of value ranges specified in a lookup table. In addition to theses methods, two special cases (No-Data values and values not included in the reclassification setup) are supported. In mode (a) and (b) the 'No-Data option' is evaluated before the method settings, in mode (c) the option is evaluated only if the No-Data value ins't included in the lookup table. The 'other values' option is always evaluated after checking the method settings.

## Parameters

Grid system
Grid system
  Grid system
Grid
Input Grid
  Grid to reclassify
Reclassified Grid
Output Grid
  Reclassified grid.
Method
Choice
  Select the desired method: 1. a single value or a range defined by a single value is reclassified, 2. a range of values is reclassified, 3. the lookup table is used to reclassify the grid.
  Available choices: single, range, simple table, user supplied table
old value
Floating point
  Value to reclassify.
new value
Floating point
  New value.
operator
Choice
  Select the desired operator (<;.;=; >;.); it is possible to define a range above or below the old value.
  Available choices: =, <, <=, >=, >
minimum value
Floating point
  Minimum value of the range to be reclassified.
maximum value
Floating point
  Maximum value of the range to be reclassified.
new value
Floating point
  new value
operator
Choice
  Select operator: eg. min < value < max.
  Available choices: <=, <
Lookup Table
Static table
  Lookup table used in method "table"
operator
Choice
  Select the desired operator (min < value < max; min . value < max; min .value . max; min < value . max).
  Available choices: min <= value < max, min <= value <= max, min < value <= max, min < value < max
Lookup Table
Input Table
  Lookup table used in method "user supplied table"
Special cases
Node
  Parameter settings for No-Data and all other values.
no data values
Boolean
  Use this option to reclassify No-Data values independently of the method settings.
new value
Floating point
  new value
other values
Boolean
  Use this option to reclassify all other values that are not specified in the options above.
new value
Floating point
  new value