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<br />Generally, it is not necessary to specify "TRACE". HoWever, if it is <br /> <br />specified, a value less than "125" gives moderate print-out whereas one <br /> <br />above that may give voluminous output. <br /> <br />l <br /> <br />6. Specifying Line and Symbol Options. <br />Each curve plotted has a default line and symbol definition. The user <br />may over-ride the default by entering the following variables and the new <br />option: <br /> <br />SYMBOL - to specify a new symbol to be plotted at each data point <br /> <br />FlINE - to specify a new type of line to be used to connect <br />each data point <br /> <br />CHSIZE - to specify the size (in inches) of the symbol being <br />plotted. <br /> <br />Each of these options applies to only one curve of which there may be <br />several. The user must indicate to which curve the current specification <br />applies before that specification is entered. This is done either directly <br />by sped fying the curve number using variable "CURVE" or indi rectly when the <br />curve generation cOl11lllnd "PLOT" has been entered. <br /> <br />Values entered take several fonns and are graphics software independent. <br />The program will convert the user input into an appropriate command compatible <br />with the current software. Specification formats are listed below. <br /> <br />Symbol options consist of the following commands. GCS oriented commands <br />are one word commands such as: <br /> <br />, ! <br />, <br /> <br />NULL, POINT, ARROW, BACKARROW, DOUBLEARROW, CHARACTER, SYMBOL, <br />COORDINATES. <br /> <br />22 <br /> <br />.. <br />