Device for generation of a three-dimensional object that encodes data by additive manufacturing

A device for generating a three-dimensional object that encodes data by additive manufacturing, comprising:

• at least one processor;
• at least one non-transitory computer readable medium comprising instructions stored thereon which when executed by the at least one processor configure the device to:
• receive information data to be encoded and object substrate data comprising shape data and encoding-type data;
• determine a set of target lengths and a number of layers on the basis of the information data to be encoded and of the encoding-type data;
• initialise a three-dimensional object model from the shape data with a stack of layers corresponding to said number of layers in an additive manufacturing production direction, thereby defining an object surface, to define on the object surface a number of measurement points corresponding to a number of lengths in the set of target lengths, and to generate paths between pairs of measurement points, each path matching a length from the set of target lengths, each measurement point being associated with a unique path, the length of each path being less than or equal to the target length with which said path is associated, each path being defined by a continuous sequence of movements of fixed dimension between the measurement points associated with said path, each movement being expressed along one of three directions associated with a three-dimensional point of reference, one of which matches the additive manufacturing production direction, each movement defining a space inside the stack of layers making it possible to measure a physical property characterising a measurement associated with the path to which said movement belongs;
• and
• modify the movements of the paths generated each have a length matching the target length with which the paths are associated, by applying a stochastic optimisation, of which operations are exclusively an addition, a deletion or a modification of one or more movements, said operations furthermore having to preserve a continuity of each path, an inclusion of each path within the stack of layers, and prevent overlapping or adjacency of two paths with each other.