Initializing classes from a text file

You can initialize a new set of classes using the Class Initialization window. You can import entries for the class table from a text file.

Class or aggregate details are stored as text (.txt) files. To import this information, it must conform to a single recognizable format. The file is limited to one class per line and has seven fields delimited by a | character:

Value | Name | Red | Green | Blue | Desc | AssociatedDesc

Value is an integer representing the class code.
Name is a character string containing the class name.
Red is a number between 0-255 depicting the red component of the RGB color.
Green is a number between 0-255 representing the green component of the RGB color.
Blue is a number between 0-255 representing the blue component of the RGB color.
Desc is a character string that provides a description for the class.
AssociatedDesc is only used in an Aggregation session. It contains the description of the original input classes that are associated with the aggregate.

The following is an example of a text file that contains three classes:

 1|	Water	|0    |0    	 |255	| Water class|  |

 2|	Crop	|0    |255	|0     |Crops|           |

 3|	Other	|255	|0    	|0     	|Water class|  |

From the Class Initialization window, click the Text File tab.
Click Text File.
In the File Selector window, locate and select the file containing the classes you want to import, and click Open. If you want to replace all current classes, select the Overwrite existing classes check box.
Click OK.