Gnuplot和非结构化数据 [英] Gnuplot and unstructured data

问题描述

我有一个x，y点的网格(就gnuplot而言)是非结构化的.我想使用gnuplot的pm3d在该网格上绘制一个变量.目前，我正在构造一个delaunay镶嵌，并将每个三角形作为单独的数据集写入数据文件.例如，数据文件如下所示:

I have a grid of x,y points that are (as far as gnuplot is concerned) unstructured. I would like to plot a variable on that grid using gnuplot's pm3d. Currently, I'm constructing a delaunay tesselation and writing each triangle into the datafile as a separate dataset. for example, the datafile looks something like this:

#triangle 1
x1  y1  c1
x2  y2  c2

x3  y3  c3
x3  y3  <c1+c2+c3>/3.


#triangle 2
x1  y1  c1
x2  y2  c2

x3  y3  c3
x3  y3  <c1+c2+c3>/3.


#triangle 3
...

这似乎行得通，但是我想知道是否有更好的方法来实现这一目标? (如果有关系，我正在使用Python + Delny接口构造delaunay镶嵌)

This seems to work Ok, but I was wondering if there a better way to accomplish this? (if it matters, I'm using Python+Delny interface to construct the delaunay tesselation)

推荐答案

显然，上述解决方案与我将要找到的解决方案一样好.除了dgrid3d以外，如果您有更好的方法在gnuplot中绘制非结构化数据，我希望听到它！

Apparently the above solution is as good as I'm going to find. If you have a better way to plot unstructured data in gnuplot, other than dgrid3d, I'd love to hear it!

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