1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
# Simple demo of 2D line plot.
proc x00 {{w loopback}} {
set xmin 0.0
set xmax 1.0
set ymin 0.0
set ymax 100.0
set nsize 101
matrix x f $nsize
matrix y f $nsize
for {set i 0} {$i < $nsize} {incr i} {
set xi [expr {$i / double($nsize - 1)}]
x $i = $xi
y $i = [expr {$ymax * $xi * $xi}]
}
# Create a labelled box to hold the plot
$w cmd plenv $xmin $xmax $ymin $ymax 0 0
$w cmd pllab "x" "y=100 x#u2#d" "Simple PLplot demo of a 2D line plot"
# Plot the data that was prepared above
$w cmd plline x y
}
|
