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Getting Started

The following steps will guide you through preparation, installation and configuration of SNAP.

 

Pre-Installation:

If your system does not have both a Java Runtime Enviroment (JRE) and Java 3D installed, you will need both before proceeding. Once both are installed, you may continue with the SNAP installation.

Installing Java

The current official release of Java can always be obtained from java.com. The site contains detailed instructions for either downloading and installing Java or determining which version is already available on your system. We recommend that you use the standard JRE distributed by Oracle.

Note: If you already have a Java installation, it must be compatible with JRE version 1.6 or newer.

Installing Java 3D

The current official release of Java3D can be obtained from the java3d.java.net. The current distributions of Java 3D are released as ZIP archives whose files must be manually installed. These files can be downloaded here.

Once the ZIP archive is downloaded, you will need to extract its files and follow the installation instructions provided in the README-unzip.html file.

 

Installation:

  1. Download the installation program here (you must be signed in first).

  2. Run the installation program. On most systems, you can do this by double-clicking the downloaded SnapInstaller.jar file. If this option is not available, you can manually run the installer by entering
  3. java -jar SnapInstall.jar

    in a command prompt.

  4. The SNAP Installer will appear.
  5. The initial stages of the SNAP installation can follow two routes. The large buttons shown in the installer are used to select whether the SNAP installation will be performed directly from the internet (the first option) or as a two-stage fetch and install process (the latter two options). The internet installation is the simplest method and recommended for most users. The two-stage method is recommended for administrators that want to download the installation materials once, distribute them to multiple machines, and then install from the cached files.

    At this point, the installation instructions vary.

Install or Update Directly from the Internet

  1. Select the first button and press Continue.

  2. You will be asked for your login credentials. These are the same as those used for this website.

  3. The main installation window will appear, with a prompt asking where SNAP should be installed. If you do not want to use the standard location, enter the appropriate folder path, then press OK.

  4. The SNAP License will be displayed. After reading the license, you must select the Agree button and press OK to continue.

  5. The installer will prompt you with the location of your JRE java executable. This should be automatically completed if Java is installed correctly on your system. If for some reason you wish to use a different java executable, you can enter its path here. Regardless, press the OK button to continue.
  6. The installation will continue by retrieving and unpacking the files required for SNAP. You will not need to provide additional input until the Plug-in Manager is shown.

  7. At the Plug-in Manager, select the plug-ins needed for the SNAP installation, then press OK.
  8. The installation will proceed by downloading and unpacking the plug-in files. Afterwards, the SNAP installation is complete.

Download Installation Packages to a Local Folder

  1. Select the second button.
  2. A text field will appear at the bottom of the installer. This indicates the folder that the installer will download installation packages into. The button to the right of the field can be used to select the folder with a file browser.

  3. Press the Continue button.

  4. You will be asked for your login credentials. These are the same as those used for this website.

  5. The main installation window will appear, with a prompt asking where SNAP should be installed. If you do not want to use the standard location, enter the appropriate folder path, then press OK.

  6. The Download Manager window will appear, asking which resources should be retrieved. Select SNAP and the plug-ins you wish to install, then press Continue.
  7. The installer will download the installation packages and then notify you when the process is complete.

Install or Update from a Local Folder

Note: You must have the installation packages on a locally accessible folder before you can follow these steps.
  1. Select the third button.
  2. A text field will appear at the bottom of the installer. This indicates the folder containing the installation packages. The button to the right of the field can be used to select the correct folder with a file browser.

  3. Press the Continue button.

  4. The main installation window will appear, with a prompt asking where SNAP should be installed. If you do not want to use the standard location, enter the appropriate folder path, then press OK.

  5. The SNAP License will be displayed. After reading the license, you must select the Agree button and press OK to continue.

  6. The installer will prompt you with the location of your JRE java executable. This should be automatically completed if Java is installed correctly on your system. If for some reason you wish to use a different java executable, you can enter its path here. Regardless, press the OK button to continue.
  7. The installation will continue by unpacking the files required for SNAP. You will not need to provide additional input until the Plug-in Manager is shown.

  8. At the Plug-in Manager, select the plug-ins needed for the SNAP installation, then press OK.
  9. The installation will proceed by downloading and unpacking the plug-in files. Afterwards, the SNAP installation is complete.

 

After Installation:

SNAP should now be installed for your system. Please refer to the Post-Installation and Configuration instructions for more information. If you're new to SNAP, you can also find several tutorials here.