ij-macro-programming-workshop

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Exercise 01.03 - Hello World version 3

Aims:

Finally we will write the “Hello World!” message onto an overlay of an image. The command

`Overlay.drawString("<myText>", <x>, <y>);` 

can do this. It has three parameters:

The command has a fourth, optional parameter, which is the angle in which the string is displayed. Try different angles. You can find the description of the build-in functions of ImageJ here: functions.html


newImage("Hello!", "8-bit ramp", 400, 400, 1);	

This creates a new image with the window title “Hello!”. The image is an 8-bit image that can contain intensity values from 0 to 255. It has the size 400x400x1 pixel. This means it has one slice of width 400 pixel and height 400 pixel. The token “ramp” means that the image will contain a greyscale ramp.

Your code starts after this line


Overlay.drawString("Hello World!", 100, 100, 45);

Your code ends before this line

Overlay.show();					// This command makes the overlay, on which you drew the message, visible.

Hello!

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