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