Tello EDU (with firmware v02.05.01.17) can be started from any point of the floor map but it is recommended to keep a certain safety margin from the borders (50cm or so). As soon as it reaches a certain minimum height (about 70 cm above the map), it's position is determined via the dot pattern below the drone which varies by a certain mathematical logic depending on the position. The DJI logo in the center has no meaning for the positioning algorithm. It's just advertising...
I am pretty sure, that the map will also work without the DJI logo in the center and without the little star constellations between the round dots.
If you have limited space where not the whole floor map fits in, you can simply reduce it's size by folding / rolling some of the area of the borders. The 3m x 3m floor map is nothing else than simply a cutout of the larger 5m x 5m floormap. Both can be used with map ID 12. In the formation example that you find in my signature, I used a 4m x 3m cutout of the 5m x 5m map file.
You can also print your own map using the files from Ryze if you have a large plotter but it is important that you print it true to scale.
You can also use the mission pads that come with
Tello EDU /
Tello Talent but with these you only get this map based positioning inside a very limited "box" above the map. If you want to cover a larger area, you can use more of the mission pads but in that case, positioning is much more complicated compared to the positioning above the large "single piece" floor map. A larger region covered with several small mission pads (that may have about 1 m distance from each other) means that you have many local coordinate systems and you can only "jump" from one local coordinate system to the next one, like in this little example:
This is "Triple-
Tello Swarm Test with Light Animation" by Hacky on Vimeo, the home for high quality videos and the people who love them.
vimeo.com
The example also shows a little prototype of my "DIY
Tello Toplight", which is a 4 "Neopixel" LED strip controlled by an ESP8266 which gets its commands also from the controlling computer. It's a similar approach to what you can do with the RMTT expansion but less weight and cheaper.