It’s easy to draw your own Artcodes. Artcodes you can draw for the advent calendar are 4 connected regions (or shapes) connected by a boundary (or outline) with blobs inside of them.
Region: an enclosed space. regions can be directly connected to other regions
Boundary: makes sure ALL regions are connected together
Blob: A solid shape
Code: The number of values represent the number of regions each value represents the number of blobs in each region.
Artcode: 1:1:2:3: Four regions, connected by boundary with blobs ‘floating’ inside regions.
These rules can now be translated into an Artcode as seen here. Four regions with ‘noise’ both inside regions and as part of the boundary. Each region with the corresponding blob floating within.
When drawing for your advent calendar you can use any code with 4 regions (shapes), that each must contain 1 to 6 blobs, except codes that have three of more 1s. Here’s a list:
Blobs merging: Make sure blobs aren’t too close to the region or other blobs as they may merge together in the software.
Broken boundary: Make sure ALL regions are connected to each other.
Broken regions: Make sure ALL regions included in the artcode are fully enclosed regions.
Empty regions: make sure that you dont leave any regions empty.
Amount of regions: Make sure the number of regions is the same number of values in the code. So here there are 4 values so there are 4 regions. Or if there were 5 values then there would be 5 regions and so on.