ILWIS objects

Container objects

Container objects are collections of data objects. Container objects in its simplest form are (ASCII) lists with references to the object definition files of the data objects they contain. Container objects themselves thus do not store the data files of data objects. Some extra information may be stored by container objects as well.

Container object are:

	map lists	containing raster maps
	object collections	containing a subset of your data or the results of importing an Aster image
	map views	containing a raster map and/or one or more polygon, segment and point maps, grid lines and graticules
	layouts	containing one or more map views and other annotation
	annotation text	containing multiple texts, e.g. labels of polygons, segments or points
	graphs	containing graphical display settings for values in columns

In ILWIS 3, object names comply with Windows long file names.

In object names, any character may be used except \ / : * ? < > | "
The maximum length of an object name is 255 characters including the full path.

Furthermore, it is not allowed to use % in any ILWIS object name.

In dialog boxes, long object names can be used freely.

On the command line and in scripts however, object names must be enclosed by single quotes e.g. 'My Object'.ext when the object name:

starts with a digit from 0 to 9,
starts with or contains one or more spaces, or
starts with or contains any of the following special characters ` ~ ! @ # $ ^ & ( ) - + = [ ] { } ; ' , .