Using the WIRED4 Event Display
WIRED4 is an interactive event display, which is able to graphically represent data from an LCIO file and the associated detector from the simulation job.
WIRED4 Manual
The WIRED4 Manual gives detailed instructions on how to use this application.
This tutorial will focus on basic operations to view LCIO event data using the WIRED4 viewer within JAS3.
Loading a WIRED4 View
First, load the datafile from the Previous Tutorial by opening it using File -> Open.
Next, select File -> New -> WIRED4 View.
Press the Go 1 button to advance one record into the LCIO data file.
You should see something similar to this screenshot.
The detector topology is drawn in white on the black background. (In general, structures within the detector such as layers and sublayers are left out to improve performance and reduce visual clutter.)
This display colors hits according to their energies ("Rainbow" view), charged particles in blue, and neutral particles in yellow.
In additional to objects from simulation, such as hits and particles, WIRED4 can also draw analysis objects such as clusters. Displaying analysis objects will not be covered in this tutorial.
Interaction Menu
The Interaction commands are used to "get around" the WIRED event display.
Available actions include translation (e.g. panning), rotation and zoom in/out.
For convenience, this menu can be accessed from the Interaction tab on the left or from the buttons in the toolbar just underneath the drop-down menus.
To execute an Interaction command, select the tool's icon from either of these menus.
Click in the WIRED4 event display pane to activate the tool.
Zoom
Zooming (or scaling) is accomplished using a number of different mouse and keyboard actions.
Start by selecting the magnifying glass icon.
Zoom out using any of these methods.
- Hold the Alt key and left click to zoom out by a fixed factor.
- To zoom out smoothly, left click and hold, and then move the mouse cursor towards the center of the image.
- Another method for zooming in smoothly is to scroll the mouse wheel away from you.
Zoom in using these shortcuts.
- Left click to zoom in by a fixed factor.
- To zoom in smoothly, left click and hold, and then move the mouse cursor away from the center of the image.
- The mouse can also be used to zoom in by scrolling the wheel towards you.
Try zooming out until you can see the entire detector. It should look similar to this.
Also, try zooming in until you can only see the particles at the Interaction Point (IP).
Experiment with the until you are comfortable with zooming in and out of the event display.