NSF supports multiple object systems in a single Tcl interpreter.
There you will learn how to use the new features introduced in NX and combine them with your existing XOTcl scripts. Not much! Alternatively you can do the following:. Again, in most Linux distributions a C compiler is pre-installed e.
Although there are possibilities to install gcc on other platforms check their website , you might want to try the off-the-shelf C compilers first: for Mac OS X install Apple's Xcode Developer Tools and for Windows try Microsoft's Visual Studio Community editions both are free. Simply fetch the latest NSF package from our download page or try the direct link on the left and extract it to a directory of your choice e. After unpacking, open a shell Linux , a terminal Mac , or a command-line interface cmd. The next steps will show how to install NSF on a Unix-based system.
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If you are running another operating system, you just have to adapt slightly, but the steps remain the same. First of all, you have to check if your system meets all requirements for compilation and configure the sources according to your computer's environment. To do that, execute the following command in the NSF directory:. You have just compiled the NSF sources and optionally can test your compilation by executing:.
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This will copy binary files to the corresponding directories and set environment paths in order to be able to execute NSF from everywhere on your system. So, you don't have to bother if you are in the right directory anymore. Congratulations, if all of the above steps finished without errors, you have successfully installed NSF and are ready to proceed. If you experience any problems, try to get help by exactly following the installation instructions provided in the README file.
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If you still are having difficulties, then do not hesitate to get in touch with the community. After successfully installing NSF, you may want to execute your first program. In order to do this, open your operating systems command-line interface e. So, as a first step we want to open a Tcl shell:. Let's try an ordinary Tcl command:.
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Of course, you can alternatively save any command in a textfile e. In the small example, a new label widget is defined and some text is added.
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The second line tells the geometry manager to arrange the widget automatically. Save these two lines of code to a text file of your choice e. OK, so Tcl commands are working also graphically. Therefore, we will define a minimalistic Greeter class extending the 'Hello World' example. The class will consist of two methods for saying hello and goodbye. As you can see, the NX class owns a required property the name of the person we would like to greet and two methods - one for greetings, the other to say goodbye.
In the case of XOTcl 2.
To compile packages you may have to download tools from the tools directory and read the corresponding note below. Please check the MD5 checksum of the downloaded image to ensure that it has not been tampered with or corrupted during the mirroring process. For example type md5 R On Mac OS X Contains R 3. The latter two components are optional and can be ommitted when choosing "custom install", they are only needed if you want to use the tcltk R package or build package documentation from sources.
Always re-install XQuartz when upgrading your macOS to a new major version. Important: this release uses Clang 7. If you wish to compile R packages from sources, you will need to download and install those tools - see the tools directory. This file is only needed if you want to join the development of the GUI, it is not intended for regular users.