# Getting Started

## Getting the Code

Either clone the repository using Git:

    git clone git@github.com:OHIF/Viewers.git

or Download the latest Master as a ZIP File.

## Test the archive against our public DICOM server

## Set up and test the OHIF Viewer application:

1. Install Node.js

2. Open a new terminal tab in the `ohif-viewer` directory and install all dependency packages via NPM

       cd Packages-react/ohif-viewer
       npm install

3. Run the application

       npm start

Note: This will connect to our public DICOMWeb server so you can verify your installation. Follow the next section to connect to your own local or remote DICOMWeb server.

1. Launch the OHIF Viewer Study List by visiting http://localhost:3000/ in a web browser.

If everything is working correctly, you should see the studies from our public archive when you visit the Study List.

1. Double-click on a Study in the Study List to launch it in the Viewer

   If everything is working correctly, you should see your study load into the Viewer.

## Set up a local DICOM server

1. Choose and install an Image Archive
2. Upload some data into your archive (e.g. with DCMTK's storescu or your archive's web interface)
3. Keep the server running

#### Open Source DICOM Image Archive Options

Archive | Installation
--- | ---
DCM4CHEE Archive 5.x | Installation with Docker
Orthanc | Installation with Docker
DICOMcloud (DICOM Web only) | Installation
OsiriX (Mac OSX only) |
Horos (Mac OSX only) |

Feel free to make a Pull Request if you want to add to this list.

## Set up and test the OHIF Viewer application:

1. Install Node.js

2. Open a new terminal tab in the `ohif-viewer` directory and install all dependency packages via NPM

       cd Packages-react/ohif-viewer
       npm install

3. Run the application using one of the available configuration files.

       REACT_APP_CONFIG=$(cat ../../config-react/ccc.json)
       npm start

   This uses the Custom Environment Variables of Create-React-App to pass in your configuration. The example above will not work on Windows. Please visit the link to read about how to set environment variables on Windows.

4. Launch the OHIF Viewer Study List by visiting http://localhost:3000/ in a web browser.

   If everything is working correctly, you should see the Study List from your archive when you visit the Study List.

5. Double-click on a Study in the Study List to launch it in the Viewer

   If everything is working correctly, you should see your study load into the Viewer.

#### Troubleshooting

- If you receive a "No Studies Found" message and do not see your studies, try changing the Study Date filters to a wider range.
- If you see a 'Loading' message which never resolves, check your browser JavaScript console inside the Developer Tools to identify any errors.
- If you see any errors in your server console, check the Troubleshooting page for more in depth advice.

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