IDRISI Vector Format Writer Feature Type Parameters

To access feature type parameters, click the gear icon on a feature type in the workspace to open the Feature Type Parameter Editor. To always display the editor in Workbench, you can select View > Windows > Parameter Editor.

General

All feature types share similar General parameters, including the Feature Type Name, Reader or Writer Name, and Geometry.

In most Writer Feature Type parameter dialogs, you can also control Dynamic Schema Definitions. Some database formats accept a Table Qualifier prefix on the output table feature type.

See Editing Writer Feature Types for more information.

Keyword Suffix	Value	Required/Optional
TYPE	The feature type of the file. In IDRISI, each file can contain only one feature type. The allowable types are idrisi_point, idrisi_line, idrisi_area and idrisi_text.	Required
FILE_TITLE	Contains the descriptive name of the file. It is the name which is displayed at the top of the data file. If not specified, this defaults to “unknown”.	Optional
REF_SYSTEM	The name of the geographic reference system used with the file. This may be Plane, or Lat/Long and so forth. If not specified, this defaults to “unknown”.	Optional
REF_UNITS	The unit of measure used by the reference system. The recognized units are meters, feet, miles, kilometers, degrees and radians. This defaults to “meters” if not specified.	Optional
UNIT_DIST	The scaling factor of the map in relation to the ground. This should be 1 in most cases and this defaults to 1 if not specified.	Optional
POSN_ERROR	The degree of accuracy of the position of the feature in the vector file. If not specified, this defaults to “unknown”.	Optional
RESOLUTION	The typical distance between points of a feature in the vector file. If not specified, this defaults to “unknown”.	Optional
VALUE_UNITS	The unit of measure of the values used in the vector file. If not specified, this defaults to “unspecified”.	Optional
VALUE_ERROR	The degree of error in the data values. For qualitative data, this is recorded as a proportional error value. For quantitative data, this should be recorded as a RMS error value.	Optional
FLAG_VALUE	Any value in the vector file, which is not a data value, but has special meaning. This entry should remain blank if such value does not exist.	Optional
FLAG_DEF	The definition of the above FLAG_VALUE. This field should remain blank if FLAG_VALUE does not exist.	Optional
LEGEND_CAT {<number>}	The legend categories which shows up in the legend box when the vector file is displayed. The <number> can be any positive integer which is larger than 0.	Optional
COMMENT {<number>}	Any additional information about the data. The <number> starts from 1 and increments by one for each additional comment line.	Optional
LINEAGE {<number>}	Any information regarding the history of how the data is recorded. The <number> starts from 1 and increments by one for each additional lineage line.	Optional
completeness {<number>}	The degree of how well the values describe the subject matter indicated. The <number> starts from 1 and increments by one for each additional lineage line.	Optional
consistency {<number>}	The logical consistency of the file. The <number> starts from 1 and increments by one for each additional consistency line.	Optional