Tcl/Tk中的绘图程序
我想在Tcl/Tk中做一些简单的绘图程序，例如散点图，x-y图，直方图.我正在使用Tcl/Tk 8.5.7.我在Tcler的Wiki中发现很少有诸如 BLT 之类的选项，而Tcl/Tk 8.5+不支持
I want to do simple graphing routines in Tcl/Tk like scatter plot, x-y plot, histograms. I am using Tcl/Tk 8.5.7. I found in Tcler's wiki that there are few options such as BLT which is not supported in Tcl/Tk 8.5+
是否有到gnuplot的任何Tcl/Tk接口或任何完成绘图的小部件?
Is there any Tcl/Tk interface to gnuplot or any widget to accomplish graphing?
请让我知道Tcl/Tk中的绘图例程选择.
Please let me know about the choices for graphing routines in Tcl/Tk.
Gnuplot确实可以产生Tcl/Tk可以消耗的输出. Tcler的Wiki上的此页面描述了操作方式(尽管有些复杂，因为它正在制作动画).这是一个简化的版本:
Gnuplot can indeed produce output that Tcl/Tk can consume. This page on the Tcler's Wiki describes how (though with some extra complexity because it is doing animations). Here's a simplified version:
package require Tk
eval [exec gnuplot << "
set term tk
plot x*x
"]
pack [canvas .c]
gnuplot .c
gnuplot命令是通过对gnuplot 程序产生的输出进行eval uu创建的.这有点棘手，特别是如果您想进行多个绘图(提示:使用名称空间)，但是使用起来非常简单.
The gnuplot command is created by evaluating the output that the gnuplot program produced. This is a little bit tricky, especially if you're wanting to do multiple plots (hint: use namespaces) but it is pretty simple to use.