sh: gnuplot: 在 Gnuplot + Xcode 中找不到命令
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sh: gnuplot: command not found in Gnuplot + Xcode
提问by darknessReigns
There was a similar question to mine however the answers were not quite solutions so if I could get some help with this it would be greatly appreciated.
有一个与我类似的问题，但答案并不完全是解决方案，因此如果我能得到一些帮助，将不胜感激。
The problem is that when I compile, Xcode gives the aforementioned error of sh: gnuplot: command not found.
问题是当我编译时，Xcode 给出了 sh: gnuplot: command not found 的上述错误。
I checked which gnuplotin terminal and as expected from macports it is in /opt/local/bin/gnuplot. Also printf("PATH=%s\n", getenv("PATH"));shows the path PATH=/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbinI suspect therein lies the problem but I am not sure how to fix it.
我检查which gnuplot了终端，正如 macports 预期的那样，它在/opt/local/bin/gnuplot. 还printf("PATH=%s\n", getenv("PATH"));显示了PATH=/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin我怀疑其中存在问题的路径，但我不确定如何解决它。
Thanks in advance!
提前致谢！
采纳答案by trojanfoe
Replace occurrences of gnuplot, in your script, with /opt/local/bin/gnuplotto take $PATHout of the equation.
更换的出现gnuplot，在你的脚本，以/opt/local/bin/gnuplot采取$PATH等式出来。
回答by Yeeson
The key issue to prevent Xcode from running is indeed related to PATHof gnuplot. Depending on which package management system you use in mac, the directory of gnuplotcan vary.
关键的问题，以防止Xcode的运行确实涉及到PATH的gnuplot。根据您在 mac 中使用的包管理系统，目录gnuplot可能会有所不同。
Typing which gnuplotin terminal will show the exact location of gnuplot.
which gnuplot在终端中输入将显示gnuplot.
In the case of macport, gnuplotis located in /opt/local/bin, which is not included in the default path setting of Xcode.
在macport,gnuplot位于的情况下/opt/local/bin，它不包含在 Xcode 的默认路径设置中。
To check your PATH, typing
要检查您的PATH，请键入
std::cout << "PATH=" << getenv("PATH") << std::endl; // #include<iostream>
or
或者
printf( "PATH=%s\n", getenv("PATH") ); // #include<cstdio>
can show you a likewise path as
可以向您展示同样的路径
/usr/bin:/bin:/usr/sbin:/sbin:/usr/bin
/usr/bin:/bin:/usr/sbin:/sbin:/usr/bin
Here is my solution.
这是我的解决方案。
The easiest way is to use a soft link to combine the real directory (
/opt/local/bin) ofgnuplotwith the acceptable direction, such as (/usr/bin) that shows fromgetenv("PATH")in Xcode, likeln -s /opt/local/bin/gnuplot /usr/bin/gnuplotIf your
.bash_profilesetting resists the previous method, then the safer and more stable method is to adding an external path in Xcode project directly, which is original from here. In brief, addPATHinProduct>Scheme>Edit Scheme...as shown below before closing this window.
最简单的方法是使用软链接结合实际目录（
/opt/local/bin）的gnuplot与可接受的方向，如（/usr/bin），其从显示getenv("PATH")在Xcode，像ln -s /opt/local/bin/gnuplot /usr/bin/gnuplot如果你的
.bash_profile设置抵触前面的方法，那么更安全稳定的方法是直接在Xcode工程中添加外部路径，原文出自这里。总之，添加PATH在Product>Scheme>Edit Scheme...为关闭该窗口前图所示。
Try this code to generate your first ever gnuplot in Xcode
尝试使用此代码在 Xcode 中生成您的第一个 gnuplot
#include <iostream>
#include "gnuplot-iostream.h"
int main( ) {
Gnuplot gp;
gp << "plot [-10:10] sin(x),atan(x),cos(atan(x))\n";
return 0;
}
