From Helioviewer Wiki
Welcome to the JHelioviewer handbook! We hope you enjoy using JHelioviewer and very much welcome any feedback. If there are any problems please submit a bug report. If you have any ideas for improvement please report it as a wish list item.
This handbook will guide you through the usage of JHelioviewer to browse solar image data from SOHO and SDO. For further details and developer information, please have a look at JHelioviewer.
Launching JHelioviewer and System Requirements
JHelioviewer is written in Java and supports Linux, Mac OS X and MS Windows (XP, Vista, 7), both as 32- and 64-bit. For Mac OS X and Windows, we offer native bundles which offer a better system integration. You can download the latest version of JHelioviewer here. A JHelioviewer folder, in which the settings and some native libraries are stored, is created in the user's home directory When you launch JHelioviewer for the first time, these platform-dependent libraries will be downloaded from our server, which will take a moment. To benefit from hardware acceleration, the graphics card needs to support OpenGL 1.4 or higher.
Mac OS X
We offer a Mac OS X application bundle as a disk image. Simply drag the JHelioviewer icon into the Applications folder:
Now you can start JHelioviewer like any other application on your computer and e.g. drag the icon into the Dock.
Double-click the .exe file and follow the instructions on the screen.
Multi-Platform JAR File
This is for platforms for which no native bundle is offered (e.g. Linux) or in case you should encounter problems with the native bundles. To launch it, Java 5 or higher is required. On most systems, you can start JHelioviewer by simply double-clicking the file icon. Alternatively, enter "java -Xmx1000m -jar JHelioviewer.jar" on the command line.
Main user interface
This screenshot illustrates the main user interface elements of JHelioviewer:
- Tool bar - Select zoom mode (you can also use the mouse wheel or track pad to zoom when the cursor is in the main panel), toggle between panning mode (hand icon), region selection (rubber-band rectangle) and solar-rotation tracking (cross-hairs)
- Overview - Helps to navigate large images
- Movie Controls - Play image sequences
- Layers - Layer manager to overlay image series (top of list = top of image stack)
- Image Adjustments - Change colors, apply filters etc.
- HEK Events - Select solar event markers (will be overlaid as markers in main window)
- Info Bar - Display information about zoom, image quality levels, cursor coordinates, JPIP server status, metadata availability and rendering mode (OpenGL or Software)
- Main window - Main display panel
- Event Marker - Displays information about solar events, e.g. coronal holes, upon clicking
Mouse and Keyboard Shortcuts in JHelioviewer
JHelioviewer has a number of mouse and keyboard shortcuts to speed up your browsing. You can see a list of shortcuts on JHelioviewer at any time by pressing the F1 key.
|Double left-click||Zoom in|
|Double right-click||Zoom out|
|Mouse-wheel up||Zoom in|
|Mouse-wheel down||Zoom out|
|ALT + c||Center the image|
|ALT + t||Toggle fullscreen display|
|ALT + ,||Zoom in|
|ALT + .||Zoom out|
|ALT + k||Zoom to fit|
|ALT + l||Zoom to native resolution|
|ALT + p||Play/pause movie|
|ALT + b||Step to previous frame|
|ALT + n||Step to next frame|
Cool Things You Can Do in JHelioviewer
- Browse more than 14 years worth of SOHO data as well as the latest high-resolution images from SDO/AIA.
- Create your own movies of the Sun
- Apply filters like color tables and sharpening to movies in real-time
- Export movies in various formats
- Track features of the Sun by compensating the differential solar rotation
If your computer is connected to the Internet, JHelioviewer will automatically check for updates and will inform you if a new version is available. You can also check for updates manually in the help menu. For developer details see JHelioviewer updates.
In addition to this user guide, the Helioviewer team offers a number of resources that can help you use and enjoy JHelioviewer. These include: