For my first encoded map I used the picture of the ATEC building map. Most people could not figure out how the class numbers and sections were created. So this gave me an idea to color code the floor and convert the section and room into binary base 2 code.
Floors 1-4: 1 = red, 2 = green, 3 = blue, and 4 = black(alpha)
Sections: binary base 2
Room: binary base 2