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GRASS 4.1 U.S. Army CERL 4 <br /> v.in.arc <alpha> GRASS Reference Manual <alpha> v.in.arc <br /> Enter the name of a file that associates <br /> label-point ID numbers with text label strings <br /> Hit RETURN if there is no such file <br /> > <br /> v.in.arc then scans the label-text file to find the numbers <br /> of lines and columns, the column headers (if any), and the <br /> first three lines of actual data in the file. It displays <br /> this information to standard output to help the user <br /> determine which columns will hold the ID, Category value, <br /> and Attribute text data in the new vector output file. A <br /> sample of the program's output is shown below: <br /> The LABEL-TEXT file has been scanned. There are 132 <br /> lines in the file and 8 columns in the file <br /> Column headers of the LABEL-TEXT file: <br /> rec# AREA PERIMETER SOILS# SOILS-ID SOIL-CODE DRAIN_CODE TXTUR-CODE <br /> Here are the first three lines : <br /> 1 -2.30228E+07 19399.848 1 0 0 0 0 <br /> 2 81079.875 1678.826 2 1 15 3 3 <br /> 3 955952.500 10229.637 3 2 19 8 8 <br /> The column of category values must contain only integer <br /> values. The attribute text column can contain a floating <br /> point number, an integer, or a word (text string). <br /> Finally, the user is prompted to enter line ID, category <br /> value, and attribute text column numbers. <br /> Enter the number of the column that should be used <br /> for line IDs (probably the column with -ID) : <br /> Enter the number of the column that is to be used <br /> for GRASS category values: <br /> Enter the number of the column that should be used <br /> for GRASS attribute text: <br /> Once these column numbers have been entered, v.in.arc will <br /> begin converting the ARC/INFO "Generate" format files into <br /> GRASS vector file format. <br /> IMPORTING A LINE COVERAGE <br /> The user will also be prompted for input when importing <br /> ARC/INFO files containing linear features ("line coverage") <br /> data. Like polygon data, linear features are constructed by <br />Page 9 <br />01/03/97 2.03-02 - Lange <br />