First scripts

Start by opening Fiji and clicking on the ImageJ toolbar, then press the key '[' to open the Fiji script editor

You will get an empty Script Editor

Let's write something in Python (note to Python developers: this is "Jython" which implements a subset of Python, and does not include numpy and related libraries)

Try this:

# @SciView sv
sv.addSphere()
print('My first script!')

But this needs some explanation, so let's go line by line

# @SciView sv

This line means that this script needs an instance of SciView, and it will use an existing window if one already exists. The SciView instance will be named sv

sv.addSphere()

This line is fairly straightforward and simply adds a new Sphere with default parameters, e.g. at position (0,0,0), with grey color, and a radius of 1.

print('My first script!')

This line is normal Python code that displays "My first script!" in the console. You can use these print statements to help debug your code in more advanced scripts.