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<br />no distance is specified, a distance of 1.5 times the character heighth is <br />used. Typical commands are: <br /> <br />For~: A* creates an alpha line cOll1posed of "*" 's. <br /> <br />For Ca1comp: Al1025 creates an alpha line composed of <br />"*" 's spaced 0.25 inch apart. <br /> <br />7. Specifying Miscellaneous Options. <br />Several options are available to either adjust the geometric data or <br />output special plots, or control program-user intera~tion. Options adjusting <br />the data are "ELBASE" and "BRIDGE". Entering a floating point nuRler for <br />"ELBASE" makes the program add that n1~er to every .V" data co""onent. These <br />"V" co~onents include geometric elevations, computed water surface elevations <br />or other cOl11luted results such as topwidth. Entering a positive nlJllber for <br />"Bridge", causes bridge data to be plotted whereas a nuatler less than one <br />ignores bri dge data for plotting purposes. The Cross-section 1IIOdu1e defaults <br />to one whereas t~e orofile module defaults to zero. The Cross-section <br />module plots data entered on the "BT" card. The profile module plots an <br />"I" beam indicating the top-of-roadway and the low chord elevation and the <br />upstream and downstream sections. <br />Other variables inc1 ude "SPEED. and 'DESTI~ATIOO". The vari ab le "SPEED" <br />tells GCS tile current baud rate for interactive plotting and defaults to 1211 <br />(1200 Baud). Variable "DESTI~ATION. or "DEST" causes branches within the <br />CalcQlll) Mutines based on the destination of the olot file. Three options <br />currently exist: "SCS" 01' "LBL. or .RE~TE". T11e Berkeley system ~as <br />certain ;mique subroutine calls different than standard calls. :urrently. <br /> <br />, <br /> <br />26 <br />