在gnuplot中旋转图 [英] Rotating a plot in gnuplot

问题描述

1-如何旋转图，使y成为新的x轴，反之亦然?

1-How can I rotate my plot so y would be the new x axis and vice versa?

2-将y轴的最大值从60更改为100.

2- Change the maximum value of y axis from 60 to 100.

该图是通过此脚本在终端中创建的:

The plot is created by this script in the terminal :

set palette grey
plot 'color_map.dat' matrix with image

推荐答案

您可以使用using修饰符交换x和y轴. (就像普通图一样，除了矩阵数据外，第1列和第2列不在您的数据文件中，而是被推断出来的.)

You can exchange the x and y axes with the using modifier. (Just like for ordinary plots, except that for matrix data, columns 1 and 2 are not in your data file, but are inferred.)

plot 'color_map.dat' matrix using 2:1:3 with image

如果您实际上只想更改y(新x)轴上的最大值，则可以使用set xrange[:100].但这听起来好像您可能实际上是想扩展数据本身，在这种情况下，您可以使用

If you actually just want to change the maximum value on the y (new x) axis, you would use set xrange[:100]. But it sounds like you might actually want to scale the data itself, in which case you could use

plot 'color_map.dat' matrix using ($2/60.*100):1:3 with image

尝试使用help plot matrix了解更多详细信息.

Try help plot matrix for more details.

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