如何做天文符号“\sun”在PyX中 [英] How to do the astronomical symbol "\sun" in PyX

问题描述

我一直试图用PyX把太阳的天文象征放在一个图上，但没有成功。我的代码如下：

I've been trying to put the astronomical symbol of the sun on a graph using PyX, but so for with no success. The code I have is the following:

 from pyx import *
 from pylab import *
 x=arange(1,5,0.1)
 y=exp(-(x-3.0)**2/(2.0*0.5**2))/sqrt(2.0*pi*0.5**2)
 ######################
 g=graph.graphxy(width=8,y=graph.axis.linear(title=r"Fraction of DM halos"),x=graph.axis.linear(min=1,title=r"Mass ($10^{11}M_{\sun}$)"))
 g.plot(graph.data.values(x=x,y=y),styles=[graph.style.histogram()])
 g.writeEPSfile("testhistogram")

我尝试添加 text.set（mode =latex），然后加上 text.preamble （\usepackage {mathabx}），但这不起作用（因为我知道这个符号在mathabx LaTeX包中）。任何想法？

I tried adding text.set(mode="latex") followed by text.preamble("\usepackage{mathabx}"), but this doesn't work (because I know this symbol is on the mathabx LaTeX package). Any ideas?

推荐答案

我在这里没有使用pyx，但是您只是尝试使用Unicode字符串并传入
你想要的符号的Unicode字符？

I am without pyx here, but have you simply tried to use Unicode strings and pass in the unicode character for the symbol you want?

太阳符号的字符包含Unicode编号9737（十进制，0x2609十六进制），因此您可以尝试执行此操作：

The char for the sun symbol has unicode number 9737 (decimal, 0x2609 hex) , so you could just try doing this:

g=graph.graphxy(width=8,y=graph.axis.linear(title=r"Fraction of DM halos"),
   x=graph.axis.linear(min=1,
       title=u"Mass ($10^{11}M_\u2609$)"))

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