TABLE OF CONTENTS

plot::exec

SYNOPSIS

    method exec {} {

USAGE

   $obj exec

PURPOSE

Write a Gnuplot script to the $head.gp file and execute Gnuplot.

SOURCE

        my write
        try {
            #exec gnuplot --persist $head.gp
            set result [exec -ignorestderr gnuplot $head.gp]
        } on error err {
            ::pwtk::error "an error occurred while executing gnuplot\n\n$err"
        }

        set ext [string toupper $term]
        set ots [my outputs]
        foreach img $ots {
            print "      $ext plot written to:   $img"
        }
        if { $ots ne {} } { puts "" }

        ::pwtk::ifnotempty result {
            puts $result
        }
        return [::pwtk::varvalue result]
    }