The Horizon Image Data Browser
Sample Implementations
Horizon classes may be implemented in a variety of ways to meet the
needs of the application. Here are a few examples of data browsers
that have been assembled using horizon objects which you can run from
our site with a Java-capable broswer (e.g. Netscape, Internet
Explorer, HotJava).
See also the Release Notes for the current
distribution. We are also starting a bug list.
Note to Netscape users: For best results, use
Netscape 4.0 or better to view these applet. Some versions of
Netscape 3.0 will experience problems while loading some of the
applets.
-
CGImageBrowser
- This applet is set up to browse computer graphics images
(i.e. GIF, JPEG); it uses the
GraphicsSelectionViewer allowing
the user to select data voxels or regions for such operations
as zooming. It also provides editable control of the appearance
and location of the cursor graphics.
-
SciDat1: a Scientific Data Browser
- This applet shows how our Zoom control panel can be attached to
another Viewer for exploring images.
-
CoordDemoApplet
- This is a demonstration of Horizon's support for world
coordinate systems; when the information is available, a viewer
can display coordinates of any voxel within a dataset.
-
FITSImageBrowser
- This applet can browse FITS images, allowing user to select slices
from the image cube, adjust the transfer function, view coordinates
and data values, zoom, and more.
-
ADILBrowser
- This demonstrates the use of a specialized Horizon browser
applet that communicates with a cooperating server. This
applet was created to browse the large images of radio sources
that make up the NRAO VLA Sky Survey. Here are two examples:
-
The Simplest Viewer
- This displays a simple GIF or JPEG image with no bells or
whistles.
-
A Simple Viewer with Selection Capabilites
- A simple viewer for GIF or JPEG images with basic selection
capabilities.
-
Cursor Classes Demonstration
- a demonstration of the Cursor and ROI (Region of Interest)
classes with editable graphics.
The National Center for Supercomputing Applications
University of Illinois
at Urbana-Champaign
horizon@ncsa.uiuc.edu
Last modified: January 19, 1998
