Arjen Markus (5 july 2011) Working on the next version of Plotchart I created two more examples of plots/charts.
*Stack The first one shows how to stack plots vertically using the same x-axis. Besides the use of the -box and -axesbox options, note the little trick that suppresses the axis label at the top: the maximum value is slightly smaller than a multiple of the stepsize.
Here is the code for this example:
# testmultixy.tcl --
# Demonstrate how to plot a number of XY-plots above
# each other with a common x-axis
#
# Note that the upper limit for the axis is slightly
# smaller than a full multiple of the step!
#
source plotchart.tcl
package require Plotchart
pack [canvas .c -width 500 -height 500]
set p1 [::Plotchart::createXYPlot .c {0.0 100.0 10.0} {0.0 19.9 5.0} -box {0 300 500 200}]
set plotarea [$p1 plotarea]
set width [lindex $plotarea 4]
set p2 [::Plotchart::createXYPlot .c {0.0 100.0 ""} {0.0 99.9 25.0} -axesbox [list $p1 nw 0 150 $width 150] -xlabels {}]
set p3 [::Plotchart::createXYPlot .c {0.0 100.0 ""} {0.0 1.9 0.5} -axesbox [list $p2 nw 0 150 $width 150] -xlabels {}]
$p1 title "Multiple plots with one x-axis"And the picture: