|.dvc, .vec, .vct, .vdc
IDRISI vector files are supported by the GDB library for import and export. The file format contains vector and header information. Typically, data sets include two files with a common basename and the extensions .vec and .dvc. we can open with either of them.
Vector files contain the identifiers and coordinates that define vector features. Vector files may contain only one feature type (point, line, polygon or text) per file.Vector files must be accompanied by Vector Documentation files for use.Vector files may be stored as ASCII or binary files. Now we only support ASCII format.
IDRISI supports a single uniform vector file structure for points, lines and polygons. This is a feature encoded structure since each feature is described in its entirety before the next is described. For all feature types (point, line, polygon), the file consists of a sequence of numbers indicating: 1) a feature identifier, 2) the number of points that define that feature, and 3) the X and Y coordinates for each point.
Any number of features may be contained in the same file, but each file must contain only one feature type (point, line or polygon). Every file ends with a pair of zeros. The format of a text file is exactly the same as that of a point file. The vector file stores the location of the text, while the actual text labels are stored in the Attribute Values file.
See Idrisi Raster (RDC) for information on georeferencing.
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