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GRASS 4.1 U.S. Army CERL 5 <br /> v.in.arc <alpha> GRASS Reference Manual <alpha> v.in.arc <br /> the series of arcs (aka, vectors) defining their perimeters. <br /> If the user selects LINE coverage, the prompts seen by the <br /> user will be different in two respects from those for <br /> POLYGON coverage. First, the user will not be asked whether <br /> or not a neatline is desired; and second, no label-points <br /> file name will be requested. In other respects, the <br /> treatment of LINE coverage is identical to that for POLYGON <br /> coverage. <br /> The user is prompted for the name of the lines-file <br /> containing the geographic coordinates of these arcs. The <br /> lines-file must first have been created with the ARC/INFO <br /> Ungenerate LINES option, and is in the same format as the <br /> prefix.lin file created by the GRASS v.out.arc program. <br /> DATA FILE FORMATS <br /> Following are examples of the data files discussed above. <br /> LINES FILE, also known as prefix.lin or prefix.pol file. <br /> This type of file can be created in ARC/INFO by using the <br /> lines subcommand of the Ungenerate command. Each line <br /> (aka, arc) is defined by a line-ID number, followed by a <br /> list of at least two easting and northing coordinate pairs, <br /> followed by a line with the word "END". The file is <br /> terminated with the word "END". <br /> The line-ID number is important only for line coverage data. <br /> For a line coverage, the line-ID number is the number that <br /> associates each line with its attribute data. <br /> 3 <br /> 711916.000000 4651803.000000 <br /> 711351.875000 4651786.000000 <br /> END <br /> 3 <br /> 709562.500000 4651731.000000 <br /> 709617.250000 4651624.000000 <br /> 709617.250000 4651567.000000 <br /> 709585.000000 4651503.000000 <br /> 709601.125000 4651470.000000 <br /> 709696.875000 4651503.000000 <br /> 709720.500000 4651574.000000 <br /> 709823.750000 4651575.000000 <br /> 709893.125000 4651741.000000 <br /> END <br /> 3 <br /> 710296.875000 4651491.000000 <br /> 710295.125000 4651470.000000 <br /> 710223.000000 4651454.000000 <br /> 710154.500000 4651463.000000 <br />Page 10 <br />01/03/97 2.03-02 - Lange <br />