Display

This block is one of the more simpler blocks in the Action tab, compared to the move steering and move tank blocks. This block does pretty much exactly what its name suggests, controlling the display on the EV3 Brick. You can print images, text, shapes and more to the display with the help of this block.

Display Block

EV3 Intelligent Brick Display

http://nxt.typepad.jp/robojoy/2013/09/ev3screenshot.html

Tutorial

When you drag the display block to the screen it should look like this:

There are several main components to this block, and the exact number of components depends on what option is selected from the drop-down menu. The drop-down menu is the button with the folder icon in the middle.

When you mouse over this spot, it will turn blue and say "Image". This tells you what mode the block is set to. There are four modes: Text, Shapes, Image, and Reset Screen. These options tell the EV3's display what to do when the program is run. Each option prints something completely different on the display, and what's printed all depends on what option is pressed.

"Text"- This option prints text to the screen in a specific location, depending on the X and Y values.
- Pixels- This prints text to the screen at a specific pixel location
- Grid- This prints text to the screen in a specific row and column
"Shapes"- This option prints a certain shape to the screen in a specific location with specific dimensions, depending on the X and Y values.
- Line- This prints a line to the EV3 screen with a specific starting point and a specific end point
- Circle- This prints a circle at a specific X and Y location with a specific radius
- Rectangle- This prints a rectangle at a specific X and Y location with a specific height and width
- Point- This prints a point (dot) to the screen at a specific X and Y location
"Image"- This option prints a selected image to the EV3 display at a specific X and Y location
"Reset Screen"- This option has no inputs, and only works if this block is used before any other display block. It resets the screen to the display you see when you are clicking a program from the menu

The rest of this tutorial will be divided up into four parts based on which option in the drop-down menu to the left is selected. The basic descriptions for each of the options are listed above. To view the more advanced descriptions in its own full tutorial, click on any of the options on the image to the left that you want to learn more about.

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